4Z7R

The 1.98-angstrom crystal structure of Zn(2+)-bound PqqB from Methylobacterium extorquens

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Coenzyme PQQ synthesis protein B	polymer	299	32198.5	2	UniProt (Q49149) Pfam (PF12706) In PDB	Methylobacterium extorquens (strain ATCC 14718 / DSM 1338 / AM1)	Coenzyme PQQ synthesis protein G,Pyrroloquinoline quinone biosynthesis protein B
2	A, B	ZINC ION	non-polymer		65.4	4	Chemie (ZN)
3		water	water		18.0	235	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	64397.0
Non-Polymers*	Number of molecules	4
	Total formula weight	261.6
All*	Total formula weight	64658.6

*Water molecules are not included.