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9IZN

Crystal structure of HKU1A RBD bound to TMPRSS2

Functional Information from GO Data
ChainGOidnamespacecontents
B0004252molecular_functionserine-type endopeptidase activity
B0006508biological_processproteolysis
B0016020cellular_componentmembrane
Functional Information from PROSITE/UniProt
site_idPS00134
Number of Residues6
DetailsTRYPSIN_HIS Serine proteases, trypsin family, histidine active site. VTAAHC
ChainResidueDetails
BVAL292-CYS297

site_idPS00135
Number of Residues12
DetailsTRYPSIN_SER Serine proteases, trypsin family, serine active site. DScqGDSGGPLV
ChainResidueDetails
BASP435-VAL446

site_idPS00290
Number of Residues7
DetailsIG_MHC Immunoglobulins and major histocompatibility complex proteins signature. FPCYAGH
ChainResidueDetails
APHE672-HIS678

site_idPS01209
Number of Residues23
DetailsLDLRA_1 LDL-receptor class A (LDLRA) domain signature. CInpsnw.CDgvsHCpgg.EDEnr...C
ChainResidueDetails
BCYS126-CYS148

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues130
DetailsRegion: {"description":"HKU1-CoV S protein-binding","evidences":[{"source":"PubMed","id":"38964326","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"38964328","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsActive site: {"description":"Charge relay system","evidences":[{"source":"PubMed","id":"11245484","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"38964326","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
DetailsActive site: {"description":"Charge relay system","evidences":[{"source":"PubMed","id":"38964326","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues2
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"37990007","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"38964326","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"7XYD","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"7Y0E","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"7Y0F","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8HD8","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8S0L","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues1
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues282
DetailsDomain: {"description":"BetaCoV S1-CTD","evidences":[{"source":"PROSITE-ProRule","id":"PRU01269","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues6
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine; by host","evidences":[{"source":"HAMAP-Rule","id":"MF_04099","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

239803

PDB entries from 2025-08-06

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