4HW8

2.25 Angstrom Structure of the Extracellular Solute-binding Protein from Staphylococcus aureus in complex with Maltose.

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)	Bacterial extracellular solute-binding protein, putative	polymer	420	47816.1	2	UniProt (Q2G1E9) Pfam (PF13416)	Staphylococcus aureus subsp. aureus
2	C, D (C, D)	alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose	branched		342.3	2	In PDB BIRD (PRD_900001) GlyTouCan (G07411ON)		alpha-maltose
3	E, F, Q (A, B)	CHLORIDE ION	non-polymer		35.5	3	Chemie (CL)
4	G, H, I, R (A, B)	POTASSIUM ION	non-polymer		39.1	4	Chemie (K)
5	J, K, L, M, N... (A, B)	SULFATE ION	non-polymer		96.1	14	Chemie (SO4)
6	AA, Z (B, A)	water	water		18.0	527	Chemie (HOH)

Sequence modifications

A, B: 21 - 423 (UniProt: Q2G1E9)

PDB	External Database	Details
Met -16	-	expression tag
Gly -15	-	expression tag
Ser -14	-	expression tag
Ser -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
Glu -6	-	expression tag
Asn -5	-	expression tag
Leu -4	-	expression tag
Tyr -3	-	expression tag
Phe -2	-	expression tag
Gln -1	-	expression tag
Gly 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	95632.2
Branched	Number of molecules	2
	Total formula weight	684.6
Non-Polymers*	Number of molecules	21
	Total formula weight	1607.6
All*	Total formula weight	97924.4

*Water molecules are not included.