7CNW

Crystal structure of Apo PSD from E. coli (1.90 A)

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)	Phosphatidylserine decarboxylase beta chain	polymer	253	28645.2	2	UniProt (A0A6D2XQZ0) Pfam (PF02666) UniProt (by SIFTS) (P0A8K1)	Escherichia coli K-12
2	B, D (B, D)	Phosphatidylserine decarboxylase alpha chain	polymer	42	4482.1	2	UniProt (A0A6D2XQZ0) UniProt (by SIFTS) (P0A8K1)	Escherichia coli K-12
3	E, F, I (A, C)	DODECYL-BETA-D-MALTOSIDE	non-polymer		510.6	3	Chemie (LMT)
4	G, H (A)	SODIUM ION	non-polymer		23.0	2	Chemie (NA)
5	J, K, L, M (A, B, C, D)	water	water		18.0	179	Chemie (HOH)

Sequence modifications

B, D: 254 - 287 (UniProt: A0A6D2XQZ0)

PDB	External Database	Details
Pyr 254	Ser 254	modified residue
Gly 288	-	expression tag
His 289	-	expression tag
His 290	-	expression tag
His 291	-	expression tag
His 292	-	expression tag
His 293	-	expression tag
His 294	-	expression tag
Gly 295	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	66254.5
Non-Polymers*	Number of molecules	5
	Total formula weight	1577.8
All*	Total formula weight	67832.3

*Water molecules are not included.