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3WZN

Crystal structure of the core streptavidin mutant V21 (Y22S/N23D/S27D/Y83S/R84K/E101D/R103K/E116N) complexed with biotin at 1.3 A resolution

Functional Information from GO Data
ChainGOidnamespacecontents
A0009374molecular_functionbiotin binding
B0009374molecular_functionbiotin binding
Functional Information from PDB Data
site_idAC1
Number of Residues11
DetailsBINDING SITE FOR RESIDUE BTN A 1001
ChainResidue
AASP27
AHOH1184
AHOH1205
ATYR43
ASER45
AVAL47
AASN49
ATRP79
ASER88
ATHR90
ATRP108

site_idAC2
Number of Residues11
DetailsBINDING SITE FOR RESIDUE BTN B 1001
ChainResidue
BASP27
BTYR43
BSER45
BVAL47
BASN49
BTRP79
BSER88
BTHR90
BTRP108
BHOH1128
BHOH1174

site_idAC3
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SO4 B 1002
ChainResidue
BARG53
BTHR115
BASN116
BALA117
BHOH1194

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

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PDB entries from 2025-12-24

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