9PR8

Crystal Structure of the Clostridiodes difficile CspC-CspA heterodimer.

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)	Germination-specific protease	polymer	551	60206.2	2	UniProt (A0A9R0BLF4)	Clostridia
2	C, D (C, D)	Germination-specific protease	polymer	565	62360.4	2	UniProt (A0A9R0BLE1)	Clostridia
3	E (A)	water	water		18.0	2	Chemie (HOH)

Sequence modifications

A, B: 2 - 551 (UniProt: A0A9R0BLF4)

PDB	External Database	Details
Met 1	-	initiating methionine
Glu 363	Phe 944	conflict
Glu 511	Tyr 1092	conflict

C, D: 1 - 557 (UniProt: A0A9R0BLE1)

PDB	External Database	Details
Leu 558	-	expression tag
Glu 559	-	expression tag
His 560	-	expression tag
His 561	-	expression tag
His 562	-	expression tag
His 563	-	expression tag
His 564	-	expression tag
His 565	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	245133.2
All*	Total formula weight	245133.2

*Water molecules are not included.