3V4S

Crystal Structure of ADP-ATP complex of purK: N5-carboxyaminoimidazole ribonucleotide synthetase

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Phosphoribosylaminoimidazole carboxylase, ATPase subunit	polymer	387	42923.0	2	UniProt (C3PBM5) In PDB	Bacillus anthracis
2	A	ADENOSINE-5'-DIPHOSPHATE	non-polymer		427.2	1	Chemie (ADP)
3	A, B	MAGNESIUM ION	non-polymer		24.3	3	Chemie (MG)
4	A, B	CARBONATE ION	non-polymer		60.0	2	Chemie (CO3)
5	B	ADENOSINE-5'-TRIPHOSPHATE	non-polymer		507.2	1	Chemie (ATP)
6		water	water		18.0	479	Chemie (HOH)

Sequence modifications

A, B: 1 - 378 (UniProt: C3PBM5)

PDB	External Database	Details
Gly -5	-	expression tag
Ser -4	-	expression tag
His -3	-	expression tag
Met -2	-	expression tag
Leu -1	-	expression tag
Asp 0	-	expression tag
Leu 379	-	expression tag
Glu 380	-	expression tag
Gly 381	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	85846.0
Non-Polymers*	Number of molecules	7
	Total formula weight	1127.3
All*	Total formula weight	86973.3

*Water molecules are not included.