2QV6

GTP cyclohydrolase III from M. jannaschii (MJ0145) complexed with GTP and metal ions

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D (A, B, C, D)	GTP cyclohydrolase III	polymer	268	30317.5	4	UniProt (Q57609) Pfam (PF05165)	Methanocaldococcus jannaschii	MJ0145; MjGC
2	E, I, M, Q (A, B, C, D)	POTASSIUM ION	non-polymer		39.1	4	Chemie (K)
3	F, J, N, R (A, B, C, D)	CALCIUM ION	non-polymer		40.1	4	Chemie (CA)
4	G, K, O, S (A, B, C, D)	SODIUM ION	non-polymer		23.0	4	Chemie (NA)
5	H, L, P, T (A, B, C, D)	GUANOSINE-5'-TRIPHOSPHATE	non-polymer		523.2	4	Chemie (GTP)
6	U, V, W, X (A, B, C, D)	water	water		18.0	193	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	121270.2
Non-Polymers*	Number of molecules	16
	Total formula weight	2501.4
All*	Total formula weight	123771.6

*Water molecules are not included.