3QS2

Crystal structure of the biofilm forming subunit of the E. coli common pilus: full length domain swapped dimer of 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 (A, B)	Fimbrillin matB homolog	polymer	188	19742.5	2	UniProt (Q8CWB9) Pfam (PF16449)	Escherichia coli
2	C, D, E, F, G... (A, B)	IODIDE ION	non-polymer		126.9	21	Chemie (IOD)
3	X, Y (A, B)	water	water		18.0	460	Chemie (HOH)

Sequence modifications

A, B: 1 - 173 (UniProt: Q8CWB9)

PDB	External Database	Details
Met -14	-	expression tag
Ala -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
His -9	-	expression tag
His -8	-	expression tag
His -7	-	expression tag
Val -6	-	expression tag
Asp -5	-	expression tag
Asp -4	-	expression tag
Asp -3	-	expression tag
Asp -2	-	expression tag
Lys -1	-	expression tag
Met 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	39485.0
Non-Polymers*	Number of molecules	21
	Total formula weight	2665.0
All*	Total formula weight	42150.0

*Water molecules are not included.