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3RDX

Crystal structure of ligand-free R7-2 streptavidin

Functional Information from GO Data
ChainGOidnamespacecontents
A0009374molecular_functionbiotin binding
B0009374molecular_functionbiotin binding
Functional Information from PDB Data
site_idAC1
Number of Residues5
DetailsBINDING SITE FOR RESIDUE GOL B 300
ChainResidue
BASN23
BSER27
BTYR43
BTHR110
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

site_idSWS_FT_FI3
Number of Residues122
DetailsDomain: {"description":"Avidin-like","evidences":[{"source":"PROSITE-ProRule","id":"PRU00656","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

244693

PDB entries from 2025-11-12

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