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1N9M

Streptavidin Mutant S27A with Biotin at 1.6A Resolution

Functional Information from GO Data
ChainGOidnamespacecontents
A0009374molecular_functionbiotin binding
B0009374molecular_functionbiotin binding
C0009374molecular_functionbiotin binding
D0009374molecular_functionbiotin binding
Functional Information from PDB Data
site_idAC1
Number of Residues14
DetailsBINDING SITE FOR RESIDUE BTN A 5100
ChainResidue
AASN23
ATHR90
ATRP108
AASP128
AHOH6147
AHOH6444
ALEU25
AALA27
ATYR43
ASER45
AVAL47
AASN49
ATRP79
ASER88

site_idAC2
Number of Residues13
DetailsBINDING SITE FOR RESIDUE BTN B 5200
ChainResidue
BASN23
BLEU25
BALA27
BTYR43
BSER45
BVAL47
BASN49
BTRP79
BSER88
BTHR90
BTRP108
BASP128
BHOH6050

site_idAC3
Number of Residues14
DetailsBINDING SITE FOR RESIDUE BTN C 5300
ChainResidue
CASN23
CLEU25
CALA27
CTYR43
CSER45
CVAL47
CASN49
CTRP79
CSER88
CTHR90
CTRP108
CASP128
CHOH6001
CHOH6341

site_idAC4
Number of Residues14
DetailsBINDING SITE FOR RESIDUE BTN D 5400
ChainResidue
DASN23
DLEU25
DALA27
DTYR43
DSER45
DVAL47
DASN49
DTRP79
DSER88
DTHR90
DTRP108
DASP128
DHOH6006
DHOH6197

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 Residues8
DetailsMotif: {"description":"Cell attachment site; atypical"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues20
DetailsBinding site: {}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues244
DetailsDomain: {"description":"Avidin-like","evidences":[{"source":"PROSITE-ProRule","id":"PRU00656","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

246905

PDB entries from 2025-12-31

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