2IA4

Crystal structure of Novel amino acid binding protein from Shigella flexneri

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Putative periplasmic binding transport protein	polymer	287	32531.6	2	UniProt (Q83S74) Pfam (PF00497) UniProt (by SIFTS) (A0A0H2UXX1) In PDB	Shigella flexneri 2a str. 301
2	A, B	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL	non-polymer		122.1	2	Chemie (TRS)
3	A, B	GLUTAMIC ACID	non-polymer		147.1	2	Chemie (GLU)
4		water	water		18.0	676	Chemie (HOH)

Sequence modifications

A, B: 1 - 279 (UniProt: Q83S74)

PDB	External Database	Details
Leu 280	-	EXPRESSION TAG
Glu 281	-	EXPRESSION TAG
His 282	-	EXPRESSION TAG
His 283	-	EXPRESSION TAG
His 284	-	EXPRESSION TAG
His 285	-	EXPRESSION TAG
His 286	-	EXPRESSION TAG
His 287	-	EXPRESSION TAG

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	65063.2
Non-Polymers*	Number of molecules	4
	Total formula weight	538.5
All*	Total formula weight	65601.8

*Water molecules are not included.