9B4F

Structure of human PSS1-P269S

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)	Phosphatidylserine synthase 1	polymer	481	56577.3	2	UniProt (P48651) Pfam (PF03034)	Homo sapiens (human)	PSS-1,PtdSer synthase 1,Serine-exchange enzyme I
2	C, D (A, B)	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)

Sequence modifications

A, B: 1 - 473 (UniProt: P48651)

PDB	External Database	Details
Ser 269	Pro 269	variant
Asp 474	-	expression tag
Tyr 475	-	expression tag
Lys 476	-	expression tag
Asp 477	-	expression tag
Asp 478	-	expression tag
Asp 479	-	expression tag
Asp 480	-	expression tag
Lys 481	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	113154.6
Non-Polymers*	Number of molecules	2
	Total formula weight	80.2
All*	Total formula weight	113234.8

*Water molecules are not included.