9KQF

Cryo-EM structure of PSS1 in the absence of calcium or L-serine

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	473	55590.4	2	UniProt (P48651) Pfam (PF03034)	Homo sapiens (human)	PSS-1,PtdSer synthase 1,Serine-exchange enzyme I
2	C, D, O, P (A, B)	1,2-DICAPROYL-SN-PHOSPHATIDYL-L-SERINE	non-polymer		455.4	4	Chemie (PSF)
3	E, F, I, J, K... (A, B)	1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine	non-polymer		760.1	10	Chemie (LBN)
4	G, S (A, B)	DODECANE	non-polymer		170.3	2	Chemie (D12)
5	H, T (A, B)	TETRADECANE	non-polymer		198.4	2	Chemie (C14)
6	L, N (A, B)	Phosphatidylinositol	non-polymer		887.1	2	Chemie (T7X)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	111180.8
Non-Polymers*	Number of molecules	20
	Total formula weight	11934.2
All*	Total formula weight	123115.0

*Water molecules are not included.