9SJ7

Solution structure of Clostridioides difficile CspB protein determined by CryoEM

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)	Subtilisin-like serine germination related protease	polymer	65	7509.6	2	UniProt (A0A069A4Z2)	Clostridioides difficile
2	C, D (C, D)	Subtilisin-like serine germination related protease	polymer	492	54356.8	2	UniProt (A0AB74Q767)	Clostridioides difficile

Sequence modifications

C, D: 66 - 548 (UniProt: A0AB74Q767)

PDB	External Database	Details
Met 65	-	initiating methionine
Leu 549	-	expression tag
Glu 550	-	expression tag
His 551	-	expression tag
His 552	-	expression tag
His 553	-	expression tag
His 554	-	expression tag
His 555	-	expression tag
His 556	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	123732.6
All*	Total formula weight	123732.6

*Water molecules are not included.