3F84

Structure of fusion complex of major pilin CfaB and major pilin CfaB of CFA/I pilus from ETEC E. coli

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)	CFA/I fimbrial subunit B	polymer	312	32452.5	2	UniProt (P02971) UniProt (by SIFTS) (E3PPC4)	Escherichia coli	CFA/I pilin, Colonization factor antigen I subunit B, CFA/I antigen
2	C, D (A, B)	water	water		18.0	174	Chemie (HOH)

Sequence modifications

A, B: 2 - 134 (UniProt: P02971)

PDB	External Database	Details
Met 1	-	initiating methionine

A, B: 139 - 285 (UniProt: P02971)

PDB	External Database	Details
Asp 135	-	linker
Asn 136	-	linker
Lys 137	-	linker
Gln 138	-	linker
Glu 154	Asp 39	conflict

A, B: 290 - 304 (UniProt: P02971)

PDB	External Database	Details
Asp 286	-	linker
Asn 287	-	linker
Lys 288	-	linker
Gln 289	-	linker
Leu 305	-	expression tag
Glu 306	-	expression tag
His 307	-	expression tag
His 308	-	expression tag
His 309	-	expression tag
His 310	-	expression tag
His 311	-	expression tag
His 312	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	64904.9
All*	Total formula weight	64904.9

*Water molecules are not included.