Re: [ccp4bb] Off topic: Water system sanitization

2025-01-11 Thread Patrick Loll
., 10 sty 2025 o 18:22 Patrick Loll <pjl...@gmail.com> napisał(a):Happy New Year, Everyone, I have a question about the “cleaning syringe” that is sold for DI water systems such as the Barnstead Nanopure (when one replaces the cartridge, one injects the contents of this 60-mL syringe in

Re: [ccp4bb] SUMO and SUMO protease

2024-12-12 Thread Patrick Loll
-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 ------- Patrick J. Loll, Ph. D. (he, him, his) Professor of Biochemistry & Molecular Biology Drexel University College of Medicine Room 10-102 New College Building 245 N. 1

Re: [ccp4bb] 图片1

2024-12-08 Thread Patrick Shaw Stewart
-- >> >> To unsubscribe from the CCP4BB list, click the following link: >> https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 >> > > -- > > To unsubscribe from the CCP4BB list, click the followi

Re: [ccp4bb] 图片1

2024-12-06 Thread Patrick Shaw Stewart
tions you're working with - find some new ones! Good luck, Patrick On Fri, Dec 6, 2024 at 2:18 AM 白雪慧 wrote: > Thank you very much for your reply to my question on how to optimize > microcrystal. In response to your suggestions and questions, I would like > to make the following rep

[ccp4bb] CCP4 installer on Sequoia

2024-11-27 Thread Patrick Loll
XQuartz 2.8.5 to 2.8.3 to 2.8.1 to 2.8.0 (restarting after installing each version), and get the same behavior with each. And I don’t have ScreenTime turned on. Any thoughts? Much obliged, Pat --- Patrick J

[ccp4bb] Apple M4 chip

2024-11-08 Thread Patrick Loll
the M4 machines? Speculation welcome. Cheers, Pat — Patrick J. Loll, Ph. D. (he, him, his) Professor of Biochemistry & Molecular Biology Drexel University College of Medicine Room 10-102 New College Building 245 N. 15th St., Mailstop 497 Philadelphia, PA 1

Re: [ccp4bb] Richard Pauptit, 1954-2024

2024-08-07 Thread Patrick Shaw Stewart
> > Cait Dennis > Lecturer, HullYork Medical School, University of York, UK. > > -- > > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 > -- patr...@douglas.co.ukDouglas

Re: [ccp4bb] Off topic: Nobel prize stats

2024-07-22 Thread Patrick Loll
gt; > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 Patrick Loll pjl...@gmail.com To unsubscribe from the CCP4BB list, click th

Re: [ccp4bb] Skimming crystal

2024-05-30 Thread Patrick Shaw Stewart
to try. The other thing I would suggest is to make a seedstock from those crystals and add them to a random screen - you will almost certainly find new conditions that avoid volatile precipitants. See links below. I hope one of them works for you ! Good luck, Patrick ___

[ccp4bb] Microscope camera

2024-04-24 Thread Patrick Loll
. Meanwhile, the microscope keeps on truckin’; interesting to reflect on the relative lifetimes of analog vs. digital tools… Thanks in advance for any suggestions, Pat --- Patrick J. Loll, Ph. D. (he, him, his) Professor

Re: [ccp4bb] Crystals with DNA

2024-02-09 Thread Patrick Shaw Stewart
unications*, *70*(8), pp.1107-1115. https://doi.org/10.1107/S2053230X14012552 More info https://www.douglas.co.uk/mms.htm Best wishes and good luck! Patrick ___ Hi Kavya 1. Make a seed stock from the globules or anything else that you think might be crystalline, and recreen.

Re: [ccp4bb] Crystallizing a tough target

2024-02-06 Thread Patrick Shaw Stewart
data mining of the crystallization conditions in a remark in the PDB. The concentrations that people reported are below. There were eight reports where over 100 mg/mL was used. It only goes up to 2004. https://www.douglas.co.uk/PDB_data.htm <https://www.douglas.co.uk/PDB_data.htm> Go

Re: [ccp4bb] [EXT] [ccp4bb] Crystallizing a tough target

2024-02-05 Thread Patrick Shaw Stewart
protein was crystallized at slightly higher protein concentrations, and slightly higher concentrations of precipitant were used on average. But it should be possible to make predictions. DeepMind is probably working on this right now! Best wishes, Patrick On Mon, Feb 5, 2024 at 3:06 PM kavyas

Re: [ccp4bb] Database for submitting unprocessed diffraction data

2023-10-18 Thread Patrick Loll
; Best, > Jerome > > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 ------- Patrick J. Loll, Ph. D. (he, him, his) Pr

[ccp4bb] PyMol tutorials: Summary

2023-08-04 Thread Patrick Loll
e help! Pat --- Patrick J. Loll, Ph. D. (he, him, his) Professor of Biochemistry & Molecular Biology Drexel University College of Medicine Room 10-102 New College Building 245 N. 15th St., Mailstop 497 Philade

[ccp4bb] PyMol tutorials?

2023-08-02 Thread Patrick Loll
find a suitable resource. Thanks in advance, Pat [This is me bowing to the fact that younger people appear to like to get their information by watching videos, even though I much prefer to READ]. --- Patrick J

Re: [ccp4bb] Patenting ligand binding?

2023-07-28 Thread Patrick Shaw Stewart
-JISC.exe?SUBED1=CCP4BB&A=1 > > <https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1> > > > > > > To unsubscribe from the CCP4BB list, click the following link: > https://

Re: [ccp4bb] Patenting ligand binding?

2023-07-28 Thread Patrick Shaw Stewart
other patents and patent applications. Patents don't really apply to academics in practice. Patents shouldn't be issued for things that are obvious https://new.epo.org/en/legal/guidelines-epc/2023/g_vii_4.html Patrick On Fri, Jul 28, 2023 at 9:37 AM Randy John Read wrote: > I

[ccp4bb] Coot (& phenix) on Ventura

2023-02-16 Thread Patrick Loll
seems to have been quiet for a while. Are people able to get their work done under OS 13? And have people encountered problems with any other structural biology programs? Cheers, Pat --- Patrick J. Loll, Ph. D

Re: [ccp4bb] [EXT] Re: [ccp4bb] Regarding the diffraction image

2023-02-07 Thread Patrick Shaw Stewart
crushed crystals of your protein with the other ligand) - so-called microseed matrix-screening. https://doi.org/10.1107/S0907444907007652 Good luck Patrick On Sat, Feb 4, 2023 at 10:32 PM Mark J. van Raaij wrote: > PS it’s probably not a salt crystal…TCEP is not a salt, your ligand I &

Re: [ccp4bb] outliers

2022-11-10 Thread Patrick Shaw Stewart
> >> > >> To unsubscribe from the CCP4BB list, click the following link: > >> https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 > >> <https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1> > &

[ccp4bb] direct-to-video screen camera for xtal mounting

2022-09-17 Thread Patrick Loll
(and perhaps cheaper?) than connecting the camera to software running on a PC. Any thoughts/examples/tricks are welcome. Thanks, Pat --- Patrick J. Loll, Ph. D. (he, him, his) Professor of Biochemistry

Re: [ccp4bb] Solubility of Aluminum Fluoride

2022-06-22 Thread Patrick Loll
the reactions are fast. Careful mixing > (and adjusting the pH of the ADP beforehand) are important because the BeCl2 > stock will precipitate at neutral or elevated pH, and the BeFx solution is > quite acidic. > > > -

Re: [ccp4bb] Eiger images and XDS

2022-06-01 Thread Patrick Loll
/DiamondLightSource/durin/releases/tag/2019v1 and download the durin-plugin-macos.zip file Unzip it and place the durin-plugin.so file in the directory of your choice. Cheers, Pat Loll > On 1 Jun 2022, at 4:08 AM, Kay Diederichs > wrote: > > Hi Patrick, > &g

[ccp4bb] Eiger images and XDS

2022-05-31 Thread Patrick Loll
Loll --- Patrick J. Loll, Ph. D. (he, him, his) Professor of Biochemistry & Molecular Biology Drexel University College of Medicine Room 10-102 New College Building 245 N. 15th St., Mailstop 497 Philadelphia, PA 19102 USA (215) 762

[ccp4bb] Position available at Biotech Desk Pvt. Ltd, India – a unique opportunity for a structural biology enthusiast

2022-05-18 Thread Patrick Shaw Stewart
...@douglas.co.ukDouglas Instruments Ltd. Douglas House, East Garston, Hungerford, Berkshire, RG17 7HD, UK Directors: Patrick Shaw Stewart, Peter Baldock, Stefan Kolek http://www.douglas.co.uk Tel: 44 (0) 148-864-9090US toll-free 1-877-225-2034 Regd. England 2177994, VAT Reg. GB 480

[ccp4bb] off-topic: pH meters

2021-09-20 Thread Patrick Loll
absurdly expensive); would anybody care to recommend other options? Much obliged for any suggestions (the more obsessive, the better). Cheers, Pat --- Patrick J. Loll, Ph. D. (he, him, his) Professor of

Re: [ccp4bb] Phosphatase enzymatic assay

2021-09-15 Thread Patrick Loll
Phos-tag gels are an option (albeit a fiddly one). Cheers, Pat Loll ___ Patrick J. Loll, PhD (he, him, his) Professor of Biochemistry & Molecular Biology Drexel University College of Medicine Room 10-102 New College Building 245 N. 15th St. Philadelphia, PA 19102-

Re: [ccp4bb] Looking for proteins for undergraduate biochemistry lab

2021-06-17 Thread Patrick Loll
king supply - but also meets > none of the stipulations. > ------- Patrick J. Loll, Ph. D. (he, him, his) Professor of Biochemistry & Molecular Bio

Re: [ccp4bb] sugestions on weak diffracting protein crystals

2021-05-19 Thread Patrick Shaw Stewart
eed-stocks. However it is recommended that you keep crystals where the main precipitant was PEG separate from crystals where the main precipitant was salt. https://doi.org/10.1107/S2053230X14012552 https://doi.org/10.1107/S0907444907007652 or google MMS or rMMS. Good luck, Patrick On Tue, May

Re: [ccp4bb] Design of SUMO fusion proteins

2021-04-27 Thread Patrick Loll
--- Patrick J. Loll, Ph. D. (he, him, his) Professor of Biochemistry & Molecular Biology Drexel University College of Medicine Room 10-102 New College Building 245 N. 15th St., Mailstop 497 Philadelphia, PA 19102 USA (215) 762-7706 pjl...@gmail.co

Re: [ccp4bb] Fluka-branded PEG 3000

2021-03-22 Thread Patrick Loll
was written (but the intrinsic nature of the molecule hasn’t changed, so maybe not?). Good luck. Pat Loll Patrick J. Loll, PhD (he,his) Professor of Biochemistry & Molecular Biology Drexel University College of Medicine Room 10-102 New College Building 245 N. 15th St. Philadelphia, PA 1

Re: [ccp4bb] Suggestions to improve resolution of protein crystals

2021-03-22 Thread Patrick Shaw Stewart
Hi Saurabh Of course you should use "rMMS" microseeding. See below I hope it works ! Best wishes, Patrick -- Forwarded message ----- From: Patrick Shaw Stewart Date: Mon, Sep 9, 2019 at 10:12 AM Subject: Re: [ccp4bb] Optimization from needle shaped crystals To: David

Re: [ccp4bb] Contagious, Self-Distributing "Vaccines?"

2021-02-18 Thread Patrick Shaw Stewart
in the paper my collaborator and I are now working on ! So probably not a good idea Jacob Thx Patrick On Thu, Feb 18, 2021 at 4:16 PM Jessica Bruhn wrote: > Hello, > > There have been some really excellent points raised by others (informed > consent, feasibility, etc), but I would

Re: [ccp4bb] Contagious, Self-Distributing "Vaccines?"

2021-02-18 Thread Patrick Shaw Stewart
eat it" - that is, get as much of both A and B as possible - is to develop thermal sensitivity. I.e. infect nose and throat but keep out of lungs and brain : https://www.preprints.org/manuscript/202101.0389/v1 Thanks, Patrick On Wed, Feb 17, 2021 at 9:46 PM Edwin Pozharski wrote: &g

Re: [ccp4bb] The weekly nonsense

2021-01-22 Thread Patrick Loll
- > Many plausible ideas vanish > at the presence of thought > -- > > > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&a

[ccp4bb] Silicone oil for "modified microbatch"

2021-01-19 Thread Patrick Shaw Stewart
quite large batches, but that product is no longer available. Thx Patrick ___ D'arcy A, Elmore C, Stihle M, Johnston JE. A novel approach to crystallising proteins under oil. Journal of Crystal Growth. 1996 Oct 2;168(1-4):175-80. https://www.sciencedirect.com/science/articl

Re: [ccp4bb] Micro/Macro crystal seeding experience

2020-12-18 Thread Patrick Shaw Stewart
b). However crystals of the same protein grown by cross-seeding (with crystals of a homologous Fab) looked completely different and diffracted to 2.3Å (figure 4c). https://scripts.iucr.org/cgi-bin/paper?nj5193 (open access). Your project shouts "seed me". Hope it works Patrick O

Re: [ccp4bb] AW: [ccp4bb] External: Re: [ccp4bb] AlphaFold: more thinking and less pipetting (?)

2020-12-09 Thread Patrick Shaw Stewart
bscribe from the CCP4BB list, click the following link: > > https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 > > > > > > > > > > > > To unsubscribe from the CCP4BB list, click the following link: > > https://www.jiscmail.ac.uk/cgi-bin/WA

[ccp4bb] Stabilizing Mitegen reusable bases/mounts

2020-11-15 Thread Patrick Loll
yet checked to see if that will survive immersion in liquid nitrogen). Does anyone have any other (better) ideas? Much obliged in advance, Pat __ Patrick J. Loll, PhD Professor of Biochemistry & Molecular Biology Drexel University College of Medicine Room 10-102

[ccp4bb] Fwd: [ccp4bb] AW: Kevin Denkmann lädt Sie zur Zusammenarbeit auf 'Rechnungen' ein.

2020-10-20 Thread Patrick Loll
reserved=0, >> terms & conditions are available at >> https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.jiscmail.ac.uk%2Fpolicyandsecurity%2F&data=02%7C01%7CHerman.Schreuder%40SANOFI.COM%7Cf86f5afb3c3d4664586e08d87502dc60%7Caca3c8d6aa714e1aa10e03572

[ccp4bb] CCwork/CCfree

2020-10-13 Thread Patrick Loll
, I mean the peaks of the histograms (phenix.r_factor_statistics suggests R ~ 0.15-0.18, Rfree ~ 0.19-0.22) I realize that I could probably dig up this information on my own, but I’m (feeling lazy)/(desirous of the community’s wisdom). Thanks, Pat Patrick Loll pjl...@gmail.com

[ccp4bb] flow rate for cooling stream?

2020-07-02 Thread Patrick Loll
in the US, best wishes for a happy “Holy crap, even MORE fireworks?!?!!” Day Pat --- Patrick J. Loll, Ph. D. Professor of Biochemistry & Molecular Biology Drexel University College of Medicine Room 10-102

[ccp4bb] dewar horror stories

2020-06-24 Thread Patrick Loll
insights that might satisfy my curiosity and/or prevent future mishaps of this sort. Cheers, Pat __ Patrick J. Loll, PhD Professor of Biochemistry & Molecular Biology Drexel University College of Medicine Room 10-102 New College Building 245 N. 15th St. Philadelphia

Re: [ccp4bb] Space group/Unit cell

2020-05-22 Thread Patrick Loll
here any other obvious reason? > > Thank you, > Maria > > > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1 > <https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1>

Re: [ccp4bb] SARS-CoV-2 test on a smartphone

2020-04-02 Thread Patrick Shaw Stewart
ting to know whether the lung samples were less temperature-sensitive than the throat ones, and whether this could explain the observed divergent tropism - (which you also noted). https://oldwivesandvirologists.blog/predicting-the-seasonality-of-covid/ Thx and stay warm (see my blog) Patrick On T

Re: [ccp4bb] CCP4BB vs COVID19

2020-03-22 Thread Patrick Shaw Stewart
temperature-driven switch has been seen, switching between translation (high temp) and replication (low temp). See the link below for figures - described in words in my paper, below. Best wishes Patrick Figures showing the "switch": https://www.douglas.co.uk/f_ftp1/Seminar_by_Patrick_Sh

Re: [ccp4bb] CCP4BB vs COVID19

2020-03-21 Thread Patrick Shaw Stewart
nt papers, are below. Good luck to everyone and stay well, Patrick https://oldwivesandvirologists.blog/Covid-19-and-the-trade-off-model-of-selection/ My paper in *Medical Hypotheses * http://douglas.co.uk/f_ftp1/ShawStewart_final_1-s2.pdf Narberhaus, Franz, Torsten Waldminghaus, and Sa

[ccp4bb] PhD studentship (UK): Dynamic Structural Biology – from nanocrystals to time-resolution (CASE project)

2020-01-14 Thread Patrick Shaw Stewart
Instruments Ltd. Douglas House, East Garston, Hungerford, Berkshire, RG17 7HD, UK Directors: Patrick Shaw Stewart, Peter Baldock, Stefan Kolek http://www.douglas.co.uk Tel: 44 (0) 148-864-9090US toll-free 1-877-225-2034 Regd. England 2177994, VAT Reg. GB 480 7371 36

Re: [ccp4bb] design specs/tolerances for crystallization rooms?

2019-09-25 Thread Patrick Shaw Stewart
fication - or maybe it had broken down. Water was running feely down the walls and poling on the floor, and the robot was covered in condensation. Every non-stainless screw on the controller, computer, robot etc was rusty. Interestingly, both the robot and the computer still worked. Patrick O

Re: [ccp4bb] AW: [EXTERNAL] Re: [ccp4bb] AW: [ccp4bb] challenges in structural biology

2019-09-21 Thread Patrick Shaw Stewart
ants don't have complex immune systems. Could these multiple genes be a way to avoid being wiped out by disease? Ie if the plant gets sick, it just switches on a batch of "reserve" genes**. Is that possible? Thx, Patrick * This is a pet theory of mine: https://oldwivesandvi

Re: [ccp4bb] Intergrown crystals and excess of nucleation

2019-09-09 Thread Patrick Shaw Stewart
on the air-drop interface. Therefore you should dilute the protein and/or the precipitant when you scale up. Good luck, Patrick http://scripts.iucr.org/cgi-bin/paper?S2053230X14015507 https://scripts.iucr.org/cgi-bin/paper?nj5193 On Mon, Sep 9, 2019 at 4:45 PM Claude Sauter wrote: > Le 09/09/2

Re: [ccp4bb] Optimization from needle shaped crystals

2019-09-09 Thread Patrick Shaw Stewart
j5193 Good luck, Patrick On Sun, Sep 8, 2019 at 1:46 PM David Briggs wrote: > 4. Matrix microseeding. Make a seed stock from these crystals and then > re-run your primary screens. > > https://www.ncbi.nlm.nih.gov/m/pubmed/25195878/ > > -- > Dr David C. Briggs > Senior

Re: [ccp4bb] Importance of temperature during initial crystallization screening

2019-08-01 Thread Patrick Shaw Stewart
rd to make sense of the results of a martingale. Thx Patrick PS Janet (Newman) do you have anything more up-to-date on this? On Thu, Aug 1, 2019 at 10:24 AM Sergei Strelkov wrote: > Dear all, > > > I wondered if someone could point me to a recent study on the importance > o

Re: [ccp4bb] challenges in structural biology

2019-07-24 Thread Patrick Shaw Stewart
atom of every residue on the surface of the proteins. I came up with . . . hmm . . absolutely nothing useful. I conclude that we need to start with regular screening for pretty much every new sample that we have - so an unbiased empirical approach is the only good way to go. Thx Patrick Galin

Re: [ccp4bb] challenges in structural biology

2019-07-24 Thread Patrick Shaw Stewart
I take the view that I'm trying to communicate with as many people as possible, without distracting them with my spelling . . . So go for US spellings. Sent from mobile On Tue, 23 Jul 2019, 22:39 Goldman, Adrian, wrote: > ..and responding in the same vein: > > my OED says that its etymology als

Re: [ccp4bb] challenges in structural biology

2019-07-23 Thread Patrick Shaw Stewart
are quite prone to breaking down, which makes the queues (lines) to get onto them even longer. That method might be (micro-scale) DLS – or something completely different. Thx, Patrick On Mon, Jul 15, 2019 at 8:44 PM Holton, James M < 270165b9f4cf-dmarc-requ...@jiscmail.ac.uk> wrote: &

Re: [ccp4bb] challenges in structural biology

2019-07-23 Thread Patrick Shaw Stewart
ds?) of labs all over the world - work that is largely wasted. But it needs proper funding – and I don’t know how to get that. Best wishes to all, Patrick Ps Of course I agree with Janet, Tom and others that good record-keeping is essential. But there is a limit to what we will learn if

Re: [ccp4bb] Questionable Ligand Density: 6MO0, 6MO1, 6MO2

2019-07-19 Thread Patrick Loll
oltz-Gemeinschaft Deutscher Forschungszentren > e.V. > > Aufsichtsrat: Vorsitzender Dr. Volkmar Dietz, stv. Vorsitzende Dr. Jutta > Koch-Unterseher > Geschäftsführung: Prof. Dr. Bernd Rech (Sprecher), Prof. Dr. Jan Lüning, > Thomas Frederking > > Sitz Berlin, AG Charlo

Re: [ccp4bb] A Question about crystal packing

2019-05-28 Thread Patrick Loll
Best regard > > > > > > > > > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1 > <https://ww

[ccp4bb] Fwd: [ccp4bb] SO4 or PO4

2019-02-16 Thread Patrick Loll
ttps://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1 > <https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1> --- Patrick J. Loll, Ph. D. Professor of Biochemistry & Molecular Biology Drexel University College of Medicine

Re: [ccp4bb] Is there any alternative to siliconized glass coverslips for crystallization?

2019-01-31 Thread Patrick Shaw Stewart
ling however the surface can become contaminated with grease and denatured protein. Either put them through a dishwasher (I've heard) or rub them hard with something soft. Thx, Patrick On Thu, 31 Jan 2019 at 17:14, Goldman, Adrian wrote: > Yes, that was it! I just couldn’t rememb

Re: [ccp4bb] help needed with a rabbit-head-shaped blob

2018-11-02 Thread Patrick Loll
t; > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1 > --- Patrick J. Loll, Ph. D. Professor of Biochemistry & Mo

Re: [ccp4bb] nonenzymatic removal of His tag?

2018-09-20 Thread Patrick Loll
list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1 ------- Patrick J. Loll, Ph. D. Professor of Biochemistry & Molecular Biology Drexel University College of Medic

Re: [ccp4bb] crystals that dont diffract :( :(

2018-08-16 Thread Patrick Shaw Stewart
Hi Careina Expanding on what Tim says, try crushing your crystals to make a seed stock, and adding it to a few *random screens - *preferably screens that you have already tried with this target. Search for instructions for MMS or rMMS online. Good luck, Patrick On 14 August 2018 at 11:34

Re: [ccp4bb] Fishing crystals from volatile solvent as precipitant

2018-08-16 Thread Patrick Shaw Stewart
the oil and then diffuse into the drops. You can take your time and harvest the crystals through the oil. The oil protects the crystals, preventing evaporation of isopropanol. Let me know if you (or anyone) would like some sample plates to try this out. See example and ref. bel

Re: [ccp4bb] Fishing crystals from volatile solvent as precipitant

2018-08-14 Thread Patrick Loll
unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1 > --- Patrick J. Loll, Ph. D. Professor of Biochemistry & Molecular Biology Drexel University College of Medi

Re: [ccp4bb] Please share your experience about "ugly" crystals showing good diffraction

2018-07-06 Thread Patrick Shaw Stewart
s comparable to the spreading doesn't mean that the crystals won't be ordered, and won't diffract well. Once I understood that I understood what I was seeing better when I checked my drops. Best wishes Patrick On 5 July 2018 at 22:06, Sanishvili, Ruslan wrote: > Hi Anirban, &

Re: [ccp4bb] Oxford University Press

2018-07-04 Thread Patrick Shaw Stewart
*). I was disappointed that I only got one reviewer to support my article by writing a report. But I felt that the format of the journal would have been be very helpful for a controversial topic. Link below. Patrick __ *ResearchGate *https://en.wikipedia.org/wiki/ResearchGate#Crit

Re: [ccp4bb] [ccp4bb] Oxford University Press

2018-07-01 Thread Patrick Loll
ences for reviewers and authors than the big commercial ones. Pat ------- Patrick J. Loll, Ph. D. Professor of Biochemistry & Molecular Biology Drexel University College of Medicine Room 10-102 New College Buildin

Re: [ccp4bb] suggestion of crystallization optimization

2018-06-05 Thread Patrick Shaw Stewart
crystallization, or rMMS crystallization. I hope it works - it very often does! Good luck, Patrick On 4 June 2018 at 21:41, Janet Newman wrote: > Liuqing Chen, > > Everything that has been said seems reasonable, but there are always > infinite possibilities in crystallisation,

Re: [ccp4bb] Anderson?Evans polyoxotungstate (TEW)

2018-03-31 Thread Patrick Shaw Stewart
8 > 69120 Heidelberg > Germany > Phone: +49 6221 54 4796 > Email: > -- patr...@douglas.co.ukDouglas Instruments Ltd. Douglas House, East Garston, Hungerford, Berkshire, RG17 7HD, UK Directors: Peter Baldock, Patri

Re: [ccp4bb] suggestions on a microscope for Crystallography

2018-03-07 Thread Patrick Shaw Stewart
angle of the light hitting the sample - I'm sure others can explain better than I can. Good luck, Patrick On 7 March 2018 at 02:06, Chandramohan Kattamuri < 1c5b7cb6c764-dmarc-requ...@jiscmail.ac.uk> wrote: > Hi > > I'm looking for suggestions on a good microscope for lo

Re: [ccp4bb] Unknown density

2018-03-06 Thread Patrick Loll
r the help. > > -Rajesh > > > > ------- Patrick J. Loll, Ph. D. Professor of Biochemistry & Molecular Biology Drexel University College of Medicine Room 10-102 New College Building 245 N. 15th St., Mailstop 497 Philadelphia, PA 19102-1192 USA (215) 762-7706 pjl...@gmail.com pj...@drexel.edu

Re: [ccp4bb] Na-Binding Protein?

2018-01-09 Thread Patrick Shaw Stewart
That's very interesting. I guess it's an unusual manifestation of the Hofmeister series. It might give guidance to developers of screens for both crystallization and cryoEM. Thx, Patrick On 9 January 2018 at 15:44, Andrew Mesecar wrote: > Dear Jacob, > > > > One o

Re: [ccp4bb] Regarding Patents

2017-11-04 Thread Patrick Shaw Stewart
protein activity, could > you patent such "binding site"? If not, how to make the best use of such > findings? > > > I would say that the best one can do with important novel > data/information/knowledge/insights is to publish it so the world can > benefit from it. &

[ccp4bb] ample

2017-07-20 Thread Patrick Loll
--- Patrick J. Loll, Ph. D. Professor of Biochemistry & Molecular Biology Drexel University College of Medicine Room 10-102 New College Building 245 N. 15th St., Mailstop 497 Philadelphia, PA 19102-1192 USA

Re: [ccp4bb] crystallization optimization

2017-07-13 Thread Patrick Shaw Stewart
routine structure solution. But I always find it helpful to bear in mind, as Frank suggests. Very best wishes, Patrick On 13 July 2017 at 14:49, Oganesyan, Vaheh wrote: > What I’m about to write should be referred as a question rather than an > answer. However, it might also help to fi

Re: [ccp4bb] Granada Crystallization Boxes?

2017-07-13 Thread Patrick Shaw Stewart
Gloria, would you be interested in used ones? I don't actually have any - we threw them out a few months ago, I've just checked - but someone might have some. Best wishes, Patrick On 11 July 2017 at 19:04, Gloria Borgstahl wrote: > I have recently found out that these are no

Re: [ccp4bb] crystallization optimization

2017-07-12 Thread Patrick Shaw Stewart
rt of crystallization is to try lots of things without thinking too much. Patrick On 12 July 2017 at 07:50, Vicky Tsirkone wrote: > Dear Frank, > > I may see in the attached pic several nucleation points and a considerable > amount of microcrystals. Based to my knowledge decreasing the c

Re: [ccp4bb] crystallization optimization

2017-07-10 Thread Patrick Shaw Stewart
Microseed them into two or three random screens. Search for MMS and rMMS online. Good luck Patrick On 10 July 2017 at 15:47, Liuqing Chen <519198...@163.com> wrote: > hello everyone! > I get a condition (10% w/v PEG 6000, 100mm HEPES PH7.0) in which my > protein grow sma

Re: [ccp4bb] [phenixbb] crystal imaging system

2017-06-30 Thread Patrick Shaw Stewart
ke an advertisement. I know very little about imaging systems, but I think you should at least consider the systems made by Jansci, XtalQuest and XtalConcepts There may be others. Best wishes, Patrick On 30 June 2017 at 15:55, Chris Waddling wrote: > We had the Tritek CrystalPro and now

Re: [ccp4bb] Protein or DNA crystals

2017-06-21 Thread Patrick Shaw Stewart
n DNA crystals? Patrick On 19 June 2017 at 15:20, Joseph Ho wrote: > Dear all: > > I would like to seek your opinion on our crystal hits. We are working > on protein/dsDNA complex. By changing different protein and DNA > (14-22bp) constructs, we recently got some hits from commer

[ccp4bb] comfortable OS X level

2017-06-07 Thread Patrick Loll
? Thanks as always, Pat --- Patrick J. Loll, Ph. D. Professor of Biochemistry & Molecular Biology Drexel University College of Medicine Room 10-102 New College Building 245 N. 15th St., Mailstop

Re: [ccp4bb] crystallization screen for protein-protein complex

2017-05-21 Thread Patrick Shaw Stewart
Hena There was a very interesting paper by Peter Sun and coworker from 2002. They pointed out that there is a very strong bias towards crystallizing protein-protein complexes with PEG rather than salt as the main precipitant. Patrick ___ Radaev and Sun

Re: [ccp4bb] Off topic instrumentation

2017-02-03 Thread Patrick Loll
I’m looking at my copy of Terrance Cooper’s ‘The Tools of Biochemistry’ (Wiley, 1977). It identifies two approaches to fractionating gradients. The first is the one Michael describes (allowing the liquid to drip out of the bottom). The other is to pierce the bottom of the tube, and then pump a v

[ccp4bb] Off-topic x 2: Chaperone co-expression AND Bac-Mam contract work

2017-01-19 Thread Patrick Loll
get some results, so we’d like to farm it out rather than get the technology going in-house). Can anyone recommend a group (ideally in the US, for logistical ease)? Thanks for any help. Cheers, Pat --- Patrick

Re: [ccp4bb] Slightly OT: crystallization teaching resources for kids

2017-01-04 Thread Patrick Shaw Stewart
Yes, but the kids will want to know WHY there is an energy barrier. I prefer my explanation below. Happy New Year to all Patrick _ > I am especially needing help with the concept of nucleation, and why nucleation is slower and then crystal growth faster once nuclei h

Re: [ccp4bb] Crystal with ZERO diffraction

2016-12-21 Thread Patrick Loll
Sadly, I have seen numerous examples of reasonably-sized crystals that give no observable ordered diffraction (I shot a few this weekend, in fact). I can’t give you evidence for what is happening, but I guess that you can build a macroscopic assembly using lattice interactions that are only mode

Re: [ccp4bb] Message from the Uppsala EDS: "Morituri te salutant"

2016-12-13 Thread Patrick Loll
Ave atque vale. The EDS was hugely useful (and will continue to be so in its new manifestation, we hope)—thanks to everyone who made it happen! Pat > On 13 Dec 2016, at 12:51 PM, Gerard DVD Kleywegt > wrote: > > Hi all, > > After tirelessly serving the scientific community with (mostly)

Re: [ccp4bb] Crystals grow at the bottom of the tube.

2016-10-24 Thread Patrick Shaw Stewart
stock. In practice 100% PEG 600 worked for 5 of the 6 model proteins that we looked at. The remaining seedstock worked with seed crystals suspended in 4M amm. sulfate. I hope it works for you. Best wishes, Patrick ___ Ref for stabilizing seed stocks with va

Re: [ccp4bb] Structural biology software that does not run on Windows or gives important Windows-specific problems

2016-10-14 Thread Patrick Loll
; Mark J van Raaij > Dpto de Estructura de Macromoleculas > Centro Nacional de Biotecnologia - CSIC > calle Darwin 3 > E-28049 Madrid, Spain > tel. (+34) 91 585 4616 > http://wwwuser.cnb.csic.es/~mjvanraaij -

Re: [ccp4bb] Acta Cryst. Endnote Output Style

2015-06-19 Thread Jann-Patrick Pelz
lists from library websites for example. Philip On Fri, Jun 19, 2015 at 5:55 AM, Jann-Patrick Pelz < jann.p...@biozentrum.uni-wuerzburg.de> wrote: Dear all, we are currently preparing a manuscript for publication in Acta Cryst. D. Neither the Output Style delivered with Endnote X7 nor the Outs

[ccp4bb] Acta Cryst. Endnote Output Style

2015-06-19 Thread Jann-Patrick Pelz
other Settings lead to the same wrong abbreviations. Did someone encounter the same problems and did you maybe find a solution? Best regards, Jann Jann-Patrick Pelz Lehrstuhl für Biochemie Biozentrum - Am Hubland 97074 Würzburg 0931-31 83334 jann.p...@uni-wuerzburg.de

Re: [ccp4bb] handling crystals in volatile solvents

2015-06-16 Thread Patrick Shaw Stewart
mple plates to try. Best wishes, Patrick On 12 June 2015 at 22:11, Thomas, Leonard M. wrote: > Hi All, > > We have gotten some very nicely formed crystals out of a couple of > different volatile solvents recently. Besides looking for something easier > to work in does anybody

Re: [ccp4bb] Choice of stereomicroscope

2015-03-27 Thread Patrick Shaw Stewart
inary transmission mode can both work well - good to have both if possible. Good luck, Patrick On 27 March 2015 at 13:08, Ronnie Berntsson wrote: > Dear all, > > I’m currently looking in to buying a new microscope for viewing crystal > plates, mounting crystals etc, and would love som

Re: [ccp4bb] Off-topic - Crystallisation in anaerobic glove box

2015-03-20 Thread Patrick Shaw Stewart
t. I agree that Al's Oil (silicone) should be avoided from this point of view - although I would certainly use it anyway for screening experiments (whether aerobic or anaerobic). Riveting stuff. Thx to all, Patrick On 18 March 2015 at 18:58, Tristan Croll wrote: > It's a little comp

Re: [ccp4bb] Off-topic - Crystallisation in anaerobic glove box

2015-03-18 Thread Patrick Shaw Stewart
robic) microbatch produces far superior crystals to V.D. for no obvious reason - it's well worth trying for both screening and optimization. Best wishes Patrick On 11 March 2015 at 10:17, wrote: > Dear CCP4BBer's > > Apologies for the off-topic post, but the CCP4BB seems to be the b

Re: [ccp4bb] how to reduce protein solubility

2015-02-20 Thread Patrick Shaw Stewart
ou very much in advance, > > Francesca > > -- patr...@douglas.co.ukDouglas Instruments Ltd. Douglas House, East Garston, Hungerford, Berkshire, RG17 7HD, UK Directors: Peter Baldock, Patrick Shaw Stewart http://www.douglas.co.uk Tel: 44 (0) 148-864-9090US toll-free 1-877-225-2034 Regd. England 2177994, VAT Reg. GB 480 7371 36

Re: [ccp4bb] extracting PHENIX structures

2015-01-24 Thread Patrick
Hi Tim, Thank you for the clarification. Is there a way to extract from the PDB all the CCP4/Phenix structures then? From your answer I take it there is no way? Patrick > -Original Message- > From: t...@shelx.uni-ac.gwdg.de > Sent: Sat, 24 Jan 2015 20:35:54 +0100 >

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