3R5H

Crystal Structure of ADP-AIR 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	389	43209.4	2	UniProt (C3PBM5) In PDB	Bacillus anthracis
2	A, B	ADENOSINE-5'-DIPHOSPHATE	non-polymer		427.2	2	Chemie (ADP)
3	A, B	5-AMINOIMIDAZOLE RIBONUCLEOTIDE	non-polymer		295.2	2	Chemie (AIR)
4	A, B	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
5		water	water		18.0	557	Chemie (HOH)

Sequence modifications

A, B: 1 - 383 (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

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	86418.7
Non-Polymers*	Number of molecules	6
	Total formula weight	1493.4
All*	Total formula weight	87912.1

*Water molecules are not included.