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4KXH

The X-ray crystal structure of a dimeric variant of human pancreatic ribonuclease

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
C0003676molecular_functionnucleic acid binding
C0004518molecular_functionnuclease activity
C0004519molecular_functionendonuclease activity
C0004522molecular_functionribonuclease A activity
C0004540molecular_functionRNA nuclease activity
C0005515molecular_functionprotein binding
C0005576cellular_componentextracellular region
C0016787molecular_functionhydrolase activity
C0016829molecular_functionlyase activity
C0050830biological_processdefense response to Gram-positive bacterium
C0051607biological_processdefense response to virus
C0070062cellular_componentextracellular exosome
D0003676molecular_functionnucleic acid binding
D0004518molecular_functionnuclease activity
D0004519molecular_functionendonuclease activity
D0004522molecular_functionribonuclease A activity
D0004540molecular_functionRNA nuclease activity
D0005515molecular_functionprotein binding
D0005576cellular_componentextracellular region
D0016787molecular_functionhydrolase activity
D0016829molecular_functionlyase activity
D0050830biological_processdefense response to Gram-positive bacterium
D0051607biological_processdefense response to virus
D0070062cellular_componentextracellular exosome
Functional Information from PDB Data
site_idAC1
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SO4 A 201
ChainResidue
AHIS119
APHE120
AHOH354
BGLN11
BHIS12

site_idAC2
Number of Residues2
DetailsBINDING SITE FOR RESIDUE SO4 A 202
ChainResidue
AARG32
AARG33

site_idAC3
Number of Residues6
DetailsBINDING SITE FOR RESIDUE SO4 B 201
ChainResidue
BHIS119
BPHE120
BHOH316
BHOH329
AGLN11
AHIS12

site_idAC4
Number of Residues7
DetailsBINDING SITE FOR RESIDUE SO4 B 202
ChainResidue
AHIS12
BLYS41
BVAL43
BASN44
BTHR45
BPHE120
BHOH329

site_idAC5
Number of Residues4
DetailsBINDING SITE FOR RESIDUE SO4 B 203
ChainResidue
BARG32
BARG33
BHOH310
BHOH346

site_idAC6
Number of Residues2
DetailsBINDING SITE FOR RESIDUE SO4 B 204
ChainResidue
BARG32
DSER113

site_idAC7
Number of Residues5
DetailsBINDING SITE FOR RESIDUE NA B 205
ChainResidue
AHOH306
AHOH315
BLEU51
BHOH324
CLEU51

site_idAC8
Number of Residues6
DetailsBINDING SITE FOR RESIDUE SO4 C 201
ChainResidue
CLYS41
CHIS119
CPHE120
CHOH324
DGLN11
DHIS12

site_idAC9
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SO4 C 202
ChainResidue
CGLN11
CHIS12
DLYS41
DHIS119
DPHE120

site_idBC1
Number of Residues2
DetailsBINDING SITE FOR RESIDUE SO4 C 203
ChainResidue
CARG32
CARG33

site_idBC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE SO4 C 204
ChainResidue
BARG91
CARG10
CGLN11
DASN34
DARG39
DHOH305

site_idBC3
Number of Residues4
DetailsBINDING SITE FOR RESIDUE SO4 C 205
ChainResidue
AARG91
CASN34
CARG39
CHOH322

site_idBC4
Number of Residues4
DetailsBINDING SITE FOR RESIDUE NA C 206
ChainResidue
AHOH313
AHOH320
AHOH325
CGLN28

site_idBC5
Number of Residues1
DetailsBINDING SITE FOR RESIDUE CL C 207
ChainResidue
CTYR92

site_idBC6
Number of Residues4
DetailsBINDING SITE FOR RESIDUE SO4 D 201
ChainResidue
BLYS6
DARG32
DARG33
DHOH325

site_idBC7
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SO4 D 202
ChainResidue
DARG85
DTHR87
DASN88
DARG98
DHOH324

site_idBC8
Number of Residues5
DetailsBINDING SITE FOR RESIDUE NA D 203
ChainResidue
APRO50
ALEU51
AHOH301
CHOH337
DHOH340

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

site_idSWS_FT_FI2
Number of Residues4
DetailsActive site: {"description":"Proton acceptor"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues4
DetailsActive site: {"description":"Proton donor"}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues32
DetailsBinding site: {"evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues4
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine; partial","evidences":[{"source":"PubMed","id":"3202829","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues8
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"source":"PubMed","id":"3202829","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

247947

PDB entries from 2026-01-21

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