7C68

Crystal structure of beta-glycosides-binding protein of ABC transporter in a closed state bound to cellotetraose

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)	Sugar ABC transporter, periplasmic sugar-binding protein	polymer	423	46023.3	2	UniProt (Q53W80) Pfam (PF13416)	Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)
2	C, D (C, D)	beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose	branched		666.6	2	In PDB BIRD (PRD_900011) GlyTouCan (G00025MO)		beta-cellotetraose
3	E, F, N, O, P (A, B)	CHLORIDE ION	non-polymer		35.5	5	Chemie (CL)
4	G (A)	SULFUR DIOXIDE	non-polymer		64.1	1	Chemie (SO2)
5	H, I (A)	SULFITE ION	non-polymer		80.1	2	Chemie (SO3)
6	J, Q (A, B)	SULFATE ION	non-polymer		96.1	2	Chemie (SO4)
7	K (A)	CARBON DIOXIDE	non-polymer		44.0	1	Chemie (CO2)
8	L, M, R, S (A, B)	1,2-ETHANEDIOL	non-polymer		62.1	4	Chemie (EDO)
9	T, U (A, B)	water	water		18.0	463	Chemie (HOH)

Sequence modifications

A, B: 1 - 416 (UniProt: Q53W80)

PDB	External Database	Details
Met 0	-	initiating methionine
His 417	-	expression tag
His 418	-	expression tag
His 419	-	expression tag
His 420	-	expression tag
His 421	-	expression tag
His 422	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	92046.6
Branched	Number of molecules	2
	Total formula weight	1333.2
Non-Polymers*	Number of molecules	15
	Total formula weight	885.9
All*	Total formula weight	94265.6

*Water molecules are not included.