4I0W

Structure of the Clostridium Perfringens CspB protease

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C	Protease CspB	polymer	96	10855.5	2	UniProt (Q0TM89) Pfam (PF18425) UniProt (by SIFTS) (A0A0H2YU83) In PDB	Clostridium perfringens
2	B, D	Protease CspB	polymer	477	52855.6	2	UniProt (Q0TM89) Pfam (PF00082) UniProt (by SIFTS) (A0A0H2YU83) In PDB	Clostridium perfringens
3	B, D	CHLORIDE ION	non-polymer		35.5	3	Chemie (CL)
4	B, D	SODIUM ION	non-polymer		23.0	2	Chemie (NA)
5	B, D	1,2-ETHANEDIOL	non-polymer		62.1	8	Chemie (EDO)
6		water	water		18.0	946	Chemie (HOH)

Sequence modifications

B, D: 97 - 565 (UniProt: Q0TM89)

PDB	External Database	Details
Leu 566	-	EXPRESSION TAG
Glu 567	-	EXPRESSION TAG
His 568	-	EXPRESSION TAG
His 569	-	EXPRESSION TAG
His 570	-	EXPRESSION TAG
His 571	-	EXPRESSION TAG
His 572	-	EXPRESSION TAG
His 573	-	EXPRESSION TAG

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	127422.2
Non-Polymers*	Number of molecules	13
	Total formula weight	648.9
All*	Total formula weight	128071.1

*Water molecules are not included.