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7C6M

Crystal structure of beta-glycosides-binding protein (W177X) of ABC transporter in a closed state bound to cellotetraose (Form I)

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Sugar ABC transporter, periplasmic sugar-binding proteinpolymer42245906.21UniProt (Q53W80)
Pfam (PF13416)
Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)
2B
(B)
beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranosebranched666.61In PDB
BIRD (PRD_900011)
GlyTouCan (G00025MO)
beta-cellotetraose
3C, D
(A)
CHLORIDE IONnon-polymer35.52Chemie (CL)
4E
(A)
(4S)-2-METHYL-2,4-PENTANEDIOLnon-polymer118.21Chemie (MPD)
5F
(A)
GLYCEROLnon-polymer92.11Chemie (GOL)
6G
(A)
waterwater18.0240Chemie (HOH)
Sequence modifications
A: 1 - 415 (UniProt: Q53W80)
PDBExternal DatabaseDetails
Met 0-initiating methionine
Arg 174Lys 192engineered mutation
Thr 175Asn 193engineered mutation
Pro 176Ser 194engineered mutation
-Trp 195deletion
Arg 177Asp 196engineered mutation
Thr 178Val 197engineered mutation
His 416-expression tag
His 417-expression tag
His 418-expression tag
His 419-expression tag
His 420-expression tag
His 421-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight45906.2
BranchedNumber of molecules1
Total formula weight666.6
Non-Polymers*Number of molecules4
Total formula weight281.2
All*Total formula weight46854.0
*Water molecules are not included.

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PDB entries from 2026-02-25

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