7R1M

Crystal structure of ExsFA, a Bacillus cereus spore exosporium protein

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 (A, B, C)	Exosporium protein	polymer	177	18674.1	3	UniProt (Q7WTL3)	Bacillus cereus ATCC 14579	Exosporium protein ExsF
2	D, E, F, G, H... (A, B, C)	GOLD ION	non-polymer		197.0	13	Chemie (AU)
3	I, Q (A, B)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
4	J (A)	CALCIUM ION	non-polymer		40.1	1	Chemie (CA)
5	P (B)	2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL	non-polymer		209.2	1	Chemie (BTB)
6	U, V, W (A, B, C)	water	water		18.0	304	Chemie (HOH)

Sequence modifications

A, B, C: 4 - 169 (UniProt: Q7WTL3)

PDB	External Database	Details
Met 1	-	initiating methionine
Glu 2	-	expression tag
Leu 3	-	expression tag
Ser 8	Cys 6	engineered mutation
Ser 15	Cys 13	engineered mutation
Arg 170	-	expression tag
Pro 171	-	expression tag
His 172	-	expression tag
His 173	-	expression tag
His 174	-	expression tag
His 175	-	expression tag
His 176	-	expression tag
His 177	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	56022.4
Non-Polymers*	Number of molecules	17
	Total formula weight	2858.5
All*	Total formula weight	58880.9

*Water molecules are not included.