3K01

Crystal structures of the GacH receptor of Streptomyces glaucescens GLA.O in the unliganded form and in complex with acarbose and an acarbose homolog. Comparison with acarbose-loaded maltose binding protein of Salmonella typhimurium.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Acarbose/maltose binding protein GacH	polymer	412	44259.3	1	UniProt (B0B0V1) Pfam (PF01547)	Streptomyces glaucescens
2	B (A)	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
3	C (A)	water	water		18.0	625	Chemie (HOH)

Sequence modifications

A: 17 - 404 (UniProt: B0B0V1)

PDB	External Database	Details
Met -7	-	expression tag
Gly -6	-	expression tag
Ser -5	-	expression tag
Ser -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag
His 1	-	expression tag
His 2	-	expression tag
Ser 3	-	expression tag
Ser 4	-	expression tag
Gly 5	-	expression tag
Leu 6	-	expression tag
Val 7	-	expression tag
Pro 8	-	expression tag
Arg 9	-	expression tag
Gly 10	-	expression tag
Ser 11	-	expression tag
His 12	-	expression tag
Met 13	-	expression tag
Ala 14	-	expression tag
Met 15	-	expression tag
Val 16	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	44259.3
Non-Polymers*	Number of molecules	1
	Total formula weight	96.1
All*	Total formula weight	44355.4

*Water molecules are not included.