3SQB

Structure of the major type 1 pilus subunit FimA bound to the FimC chaperone

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C, E, G (A, C, E, G)	Chaperone protein fimC	polymer	211	23582.9	4	UniProt (P31697) Pfam (PF00345) Pfam (PF02753)	Escherichia coli
2	B, D, F, H (B, D, F, H)	Type-1 fimbrial protein, A chain	polymer	152	15377.7	4	UniProt (P04128) Pfam (PF00419)	Escherichia coli	Type-1A pilin
3	I, J, K (A, B)	DI(HYDROXYETHYL)ETHER	non-polymer		106.1	3	Chemie (PEG)
4	L, N (C, D)	1,2-ETHANEDIOL	non-polymer		62.1	2	Chemie (EDO)
5	M, O (C, D)	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL	non-polymer		122.1	2	Chemie (TRS)
6	P, Q, R, S (A, B, C, D)	water	water		18.0	48	Chemie (HOH)

Sequence modifications

A, C, E, G: 1 - 205 (UniProt: P31697)

PDB	External Database	Details
His 206	-	expression tag
His 207	-	expression tag
His 208	-	expression tag
His 209	-	expression tag
His 210	-	expression tag
His 211	-	expression tag

B, D, F, H: 14 - 159 (UniProt: P04128)

PDB	External Database	Details
His 1	-	expression tag
His 2	-	expression tag
His 3	-	expression tag
His 4	-	expression tag
His 5	-	expression tag
His 6	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	155842.4
Non-Polymers*	Number of molecules	7
	Total formula weight	686.8
All*	Total formula weight	156529.2

*Water molecules are not included.