6FU2

ATP phosphoribosyltransferase (HisZG ATPPRT) from Psychrobacter arcticus in complex with PRPP and ATP

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	ATP phosphoribosyltransferase regulatory subunit	polymer	388	43129.0	2	UniProt (Q4FTX3) Pfam (PF13393) In PDB	Psychrobacter arcticus
2	C, D	ATP phosphoribosyltransferase	polymer	232	25241.0	2	UniProt (Q4FQF7) Pfam (PF01634) In PDB	Psychrobacter arcticus	ATP-PRTase
3	B, C, D	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL	non-polymer		122.1	3	Chemie (TRS)
4	C, D	1-O-pyrophosphono-5-O-phosphono-alpha-D-ribofuranose	non-polymer		390.1	2	Chemie (PRP)
5	C, D	ADENOSINE-5'-TRIPHOSPHATE	non-polymer		507.2	2	Chemie (ATP)
6	C	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
7		water	water		18.0	9	Chemie (HOH)

Sequence modifications

A, B: 1 - 387 (UniProt: Q4FTX3)

PDB	External Database	Details
Gly 0	-	expression tag

C, D: 1 - 231 (UniProt: Q4FQF7)

PDB	External Database	Details
Gly 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	136740.0
Non-Polymers*	Number of molecules	9
	Total formula weight	2209.5
All*	Total formula weight	138949.5

*Water molecules are not included.