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1RNM

RIBONUCLEASE A COMPLEX WITH CYTIDYLIC ACID (5'CMP) CRYSTALLIZED FROM 80% AMMONIUM SULPHATE

Functional Information from GO Data
ChainGOidnamespacecontents
E0003676molecular_functionnucleic acid binding
E0004518molecular_functionnuclease activity
E0004519molecular_functionendonuclease activity
E0004522molecular_functionribonuclease A activity
E0004540molecular_functionRNA nuclease activity
E0005515molecular_functionprotein binding
E0005576cellular_componentextracellular region
E0016787molecular_functionhydrolase activity
E0016829molecular_functionlyase activity
E0050830biological_processdefense response to Gram-positive bacterium
Functional Information from PDB Data
site_idAC1
Number of Residues9
DetailsBINDING SITE FOR RESIDUE SO4 E 125
ChainResidue
EGLN11
EHIS12
ELYS41
EVAL118
EHIS119
EPHE120
EC5P200
EHOH219
EHOH272

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE SO4 E 126
ChainResidue
ESER23
EHOH217
EHOH246
EHOH260

site_idAC3
Number of Residues10
DetailsBINDING SITE FOR RESIDUE SO4 E 127
ChainResidue
ELYS66
ELYS66
EALA122
EALA122
ESER123
ESER123
EC5P200
EC5P200
EHOH253
EHOH253

site_idAC4
Number of Residues11
DetailsBINDING SITE FOR RESIDUE C5P E 200
ChainResidue
EHIS12
ELYS41
EVAL43
EASN44
ETHR45
ELYS66
EPHE120
ESO4125
ESO4127
ESO4127
EHOH247

Functional Information from PROSITE/UniProt
site_idPS00127
Number of Residues7
DetailsRNASE_PANCREATIC Pancreatic ribonuclease family signature. CKpvNTF
ChainResidueDetails
ECYS40-PHE46

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsActive site: {"description":"Proton acceptor"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsActive site: {"description":"Proton donor"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues8
DetailsBinding site: {}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues4
DetailsGlycosylation: {"description":"N-linked (Glc) (glycation) lysine; in vitro","evidences":[{"source":"PubMed","id":"4030761","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues1
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine; partial","featureId":"CAR_000006","evidences":[{"source":"PubMed","id":"19358553","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues4
DetailsAnnotated By Reference To The Literature 1rbn
ChainResidueDetails
EPHE120
EHIS119
EHIS12
ELYS41

site_idCSA2
Number of Residues3
DetailsAnnotated By Reference To The Literature 1rbn
ChainResidueDetails
EHIS119
EHIS12
ELYS41

site_idMCSA1
Number of Residues5
DetailsM-CSA 164
ChainResidueDetails

246905

PDB entries from 2025-12-31

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