3GQB

Crystal Structure of the A3B3 complex from V-ATPase

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C (A, C)	V-type ATP synthase alpha chain	polymer	578	63637.8	2	UniProt (Q56403) Pfam (PF02874) Pfam (PF16886) Pfam (PF00006) Pfam (PF22919)	Thermus thermophilus HB8	V-ATPase subunit A
2	B, D (B, D)	V-type ATP synthase beta chain	polymer	464	51622.7	2	UniProt (Q56404) Pfam (PF02874) Pfam (PF00006) Pfam (PF22919)	Thermus thermophilus HB8	V-ATPase subunit B
3	E, F, G, H (A, B, C, D)	water	water		18.0	707	Chemie (HOH)

Sequence modifications

A, C: 1 - 578 (UniProt: Q56403)

PDB	External Database	Details
Ser 28	Cys 28	engineered mutation
Ser 235	Thr 235	engineered mutation
Ser 255	Cys 255	engineered mutation
Ser 507	Cys 507	engineered mutation

B, D: 1 - 464 (UniProt: Q56404)

PDB	External Database	Details
Ser 264	Cys 264	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	230520.9
All*	Total formula weight	230520.9

*Water molecules are not included.