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3F8G

The X-ray structure of a dimeric variant of human pancreatic ribonuclease with high cytotoxic and antitumor activities

Functional Information from GO Data
ChainGOidnamespacecontents
A0003676molecular_functionnucleic acid binding
A0004518molecular_functionnuclease activity
A0004519molecular_functionendonuclease activity
A0004522molecular_functionribonuclease A activity
A0004540molecular_functionRNA nuclease activity
A0005515molecular_functionprotein binding
A0005576cellular_componentextracellular region
A0016787molecular_functionhydrolase activity
A0016829molecular_functionlyase activity
A0050830biological_processdefense response to Gram-positive bacterium
A0051607biological_processdefense response to virus
A0070062cellular_componentextracellular exosome
B0003676molecular_functionnucleic acid binding
B0004518molecular_functionnuclease activity
B0004519molecular_functionendonuclease activity
B0004522molecular_functionribonuclease A activity
B0004540molecular_functionRNA nuclease activity
B0005515molecular_functionprotein binding
B0005576cellular_componentextracellular region
B0016787molecular_functionhydrolase activity
B0016829molecular_functionlyase activity
B0050830biological_processdefense response to Gram-positive bacterium
B0051607biological_processdefense response to virus
B0070062cellular_componentextracellular exosome
Functional Information from PDB Data
site_idAC1
Number of Residues7
DetailsBINDING SITE FOR RESIDUE SO4 A3000
ChainResidue
AARG4
AGLY111
AGLY112
BVAL43
BLYS66
BHOH6181
BHOH6301

site_idAC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE SO4 A3001
ChainResidue
ALYS41
AHIS119
APHE120
AHOH6281
AGLN11
AHIS12

site_idAC3
Number of Residues8
DetailsBINDING SITE FOR RESIDUE SO4 B3002
ChainResidue
ASER21
ATHR99
ASER100
APRO101
BHIS105
BGLU125
BHOH6124
BHOH6269

site_idAC4
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SO4 B3004
ChainResidue
ALYS1
BTHR87
BASN88
BARG98
BHOH6290

site_idAC5
Number of Residues6
DetailsBINDING SITE FOR RESIDUE SO4 B3006
ChainResidue
BHIS119
BPHE120
BHOH6179
BHOH6274
BHOH6289
BHOH6314

Functional Information from PROSITE/UniProt
site_idPS00127
Number of Residues7
DetailsRNASE_PANCREATIC Pancreatic ribonuclease family signature. CKpvNTF
ChainResidueDetails
ACYS40-PHE46

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues40
DetailsRegion: {"description":"Disordered","evidences":[{"source":"SAM","id":"MobiDB-lite","evidenceCode":"ECO:0000256"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues20
DetailsCompositional bias: {"description":"Basic and acidic residues","evidences":[{"source":"SAM","id":"MobiDB-lite","evidenceCode":"ECO:0000256"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
DetailsActive site: {"description":"Proton acceptor"}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues2
DetailsActive site: {"description":"Proton donor"}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues16
DetailsBinding site: {"evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues2
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine; partial","evidences":[{"source":"PubMed","id":"3202829","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues4
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"source":"PubMed","id":"3202829","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues4
DetailsAnnotated By Reference To The Literature 1rbn
ChainResidueDetails
APHE120
AHIS119
AHIS12
ALYS41

site_idCSA2
Number of Residues4
DetailsAnnotated By Reference To The Literature 1rbn
ChainResidueDetails
BPHE120
BHIS119
BHIS12
BLYS41

site_idCSA3
Number of Residues3
DetailsAnnotated By Reference To The Literature 1rbn
ChainResidueDetails
AHIS119
AHIS12
ALYS41

site_idCSA4
Number of Residues3
DetailsAnnotated By Reference To The Literature 1rbn
ChainResidueDetails
BHIS119
BHIS12
BLYS41

247536

PDB entries from 2026-01-14

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