3QS3

Crystal structure of the biofilm forming subunit of the E. coli common pilus: donor strand complemented (DSC) EcpA

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D, E... (A, B, C, D, E...)	Fimbrillin matB homolog, EcpD	polymer	191	20198.0	12	UniProt (Q8CWB9) UniProt (C8U1Y2) Pfam (PF16449) UniProt (by SIFTS) (Q8FKL3)	Escherichia coli
2	M, N, O, P, Q... (B, D, F, G, I...)	CITRATE ANION	non-polymer		189.1	6	Chemie (FLC)
3	AA, BA, CA, DA, S... (I, J, K, L, A...)	water	water		18.0	924	Chemie (HOH)

Sequence modifications

A, B, C, D, E, F, G, H, I, J, K, L: 19 - 173 (UniProt: Q8CWB9)

PDB	External Database	Details
Met 4	-	expression tag
Ala 5	-	expression tag
His 6	-	expression tag
His 7	-	expression tag
His 8	-	expression tag
His 9	-	expression tag
His 10	-	expression tag
His 11	-	expression tag
Val 12	-	expression tag
Asp 13	-	expression tag
Asp 14	-	expression tag
Asp 15	-	expression tag
Asp 16	-	expression tag
Lys 17	-	expression tag
Met 18	-	expression tag
Ser 174	-	linker
Asp 175	-	linker
Asn 176	-	linker
Lys 177	-	linker

A, B, C, D, E, F, G, H, I, J, K, L: 178 - 194 (UniProt: C8U1Y2)

Contents of the asymmetric unit

Polymers	Number of chains	12
	Total formula weight	242376.5
Non-Polymers*	Number of molecules	6
	Total formula weight	1134.6
All*	Total formula weight	243511.1

*Water molecules are not included.