4I5V

Crystal structure of yeast Ap4A phosphorylase Apa2 in complex with Ap4A

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	5',5'''-P-1,P-4-tetraphosphate phosphorylase 2	polymer	333	37835.8	2	UniProt (P22108) Pfam (PF19327) Pfam (PF09830)	Saccharomyces cerevisiae (Baker's yeast)	ATP adenylyltransferase, Ap4A phosphorylase II, AP,A phosphorylase, Diadenosine 5',5'''-P1,P4-tetraphosphate phosphorylase, AP-4-A phosphorylase
2	C, D (A, B)	BIS(ADENOSINE)-5'-TETRAPHOSPHATE	non-polymer		836.4	2	Chemie (B4P)
3	E, F (A, B)	water	water		18.0	52	Chemie (HOH)

Sequence modifications

A, B: 1 - 325 (UniProt: P22108)

PDB	External Database	Details
Met -7	-	expression tag
Gly -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag
Ala 161	His 161	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	75671.6
Non-Polymers*	Number of molecules	2
	Total formula weight	1672.8
All*	Total formula weight	77344.4

*Water molecules are not included.