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1N3Z

Crystal structure of the [S-carboxyamidomethyl-Cys31, S-carboxyamidomethyl-Cys32] monomeric derivative of the bovine seminal ribonuclease in the liganded state

Functional Information from GO Data
ChainGOidnamespacecontents
A0003676molecular_functionnucleic acid binding
A0003824molecular_functioncatalytic activity
A0004518molecular_functionnuclease activity
A0004519molecular_functionendonuclease activity
A0004522molecular_functionribonuclease A activity
A0004540molecular_functionRNA nuclease activity
A0005576cellular_componentextracellular region
A0016787molecular_functionhydrolase activity
A0016829molecular_functionlyase activity
A0042802molecular_functionidentical protein binding
A0050830biological_processdefense response to Gram-positive bacterium
A0051607biological_processdefense response to virus
Functional Information from PDB Data
site_idAC1
Number of Residues9
DetailsBINDING SITE FOR RESIDUE ADN A 126
ChainResidue
AALA4
ACYS65
AASN71
AALA109
AHIS119
AHOH219
AHOH276
AHOH283
AHOH295

site_idAC2
Number of Residues14
DetailsBINDING SITE FOR RESIDUE U3P A 125
ChainResidue
AGLN11
ALYS41
AASN44
ATHR45
APHE120
AHOH218
AHOH236
AHOH271
AHOH280
AHOH283
AHOH305
AHOH342
AHOH391
AHOH434

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 Residues1
DetailsActive site: {"description":"Proton acceptor"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues8
DetailsBinding site: {}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues1
DetailsModified residue: {"description":"Deamidated asparagine; by deterioration","evidences":[{"source":"PubMed","id":"2057997","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 Residues3
DetailsAnnotated By Reference To The Literature 1rbn
ChainResidueDetails
AHIS119
AHIS12
ALYS41

239149

PDB entries from 2025-07-23

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