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1DF8

S45A MUTANT OF STREPTAVIDIN IN COMPLEX WITH BIOTIN

Functional Information from GO Data
ChainGOidnamespacecontents
A0009374molecular_functionbiotin binding
B0009374molecular_functionbiotin binding
Functional Information from PDB Data
site_idAC1
Number of Residues14
DetailsBINDING SITE FOR RESIDUE BTN A 201
ChainResidue
AASN23
ATRP108
ALEU110
AASP128
AHOH420
AHOH433
ALEU25
ASER27
ATYR43
AVAL47
AASN49
ATRP79
ASER88
ATHR90

site_idAC2
Number of Residues11
DetailsBINDING SITE FOR RESIDUE BTN B 202
ChainResidue
BASN23
BLEU25
BSER27
BTYR43
BVAL47
BASN49
BTRP79
BSER88
BTHR90
BTRP108
BASP128

Functional Information from PROSITE/UniProt
site_idPS00577
Number of Residues15
DetailsAVIDIN_1 Avidin-like domain signature. NawKStlVGhDtFTK
ChainResidueDetails
AASN118-LYS132

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues4
DetailsMotif: {"description":"Cell attachment site; atypical"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues10
DetailsBinding site: {}
ChainResidueDetails

243531

PDB entries from 2025-10-22

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