3SS1

Clostridium difficile toxin A (TcdA) glucolsyltransferase domain

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Toxin A	polymer	555	64399.7	1	UniProt (Q189K5) Pfam (PF12918) Pfam (PF12919) UniProt (by SIFTS) (P16154)	Clostridium difficile
2	B (A)	MANGANESE (II) ION	non-polymer		54.9	1	Chemie (MN)
3	C (A)	water	water		18.0	233	Chemie (HOH)

Sequence modifications

A: 1 - 542 (UniProt: Q189K5)

PDB	External Database	Details
His 543	-	expression tag
Ala 544	-	expression tag
Gly 545	-	expression tag
Leu 546	-	expression tag
Arg 547	-	expression tag
Gly 548	-	expression tag
Ser 549	-	expression tag
His 550	-	expression tag
His 551	-	expression tag
His 552	-	expression tag
His 553	-	expression tag
His 554	-	expression tag
His 555	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	64399.7
Non-Polymers*	Number of molecules	1
	Total formula weight	54.9
All*	Total formula weight	64454.6

*Water molecules are not included.