There are plenty of Zinc hydrolase enzymes that adopt octahedral geometry
around the metal ion when you include a water in the 6th coordination site.
Diana
**
Diana R. Tomchick
Professor
Departments of Biophysics and Biochemistry
UT Southwestern Me
PS: It may also help you to check the typical distances from zinc to
other elements - these data are collected here:
https://github.com/MonomerLibrary/monomers/blob/master/metals.json
as explained here:
https://github.com/MonomerLibrary/monomers/wiki/Dealing-with-metals#typical-interatomic-distan
Dear Shikha,
We recently released and published program MetalCoord which analyses
coordination geometry of metal sites and generate restraints to
stabilise refinement.
My suggestion would be to model there just a single zinc and refine the
structure. Then put that structure as an input to Me