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5AR6

crystal structure of porcine RNase 4

Functional Information from GO Data
ChainGOidnamespacecontents
A0003676molecular_functionnucleic acid binding
A0004518molecular_functionnuclease activity
A0004519molecular_functionendonuclease activity
A0004540molecular_functionRNA nuclease activity
A0005576cellular_componentextracellular region
A0005615cellular_componentextracellular space
A0016787molecular_functionhydrolase activity
A0019731biological_processantibacterial humoral response
A0042742biological_processdefense response to bacterium
A0050830biological_processdefense response to Gram-positive bacterium
Functional Information from PDB Data
site_idAC1
Number of Residues7
DetailsBINDING SITE FOR RESIDUE EDO A 1120
ChainResidue
ALEU9
AVAL13
APRO15
ASER36
APRO90
AHOH315
AHOH332

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE EDO A 1121
ChainResidue
AMET69
AASN70
AHIS37
AGLN68

Functional Information from PROSITE/UniProt
site_idPS00127
Number of Residues7
DetailsRNASE_PANCREATIC Pancreatic ribonuclease family signature. CKrfNTF
ChainResidueDetails
ACYS39-PHE45

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsActive site: {"description":"Proton acceptor","evidences":[{"source":"UniProtKB","id":"Q9H1E1","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsActive site: {"description":"Proton donor","evidences":[{"source":"UniProtKB","id":"Q9H1E1","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues6
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"26748441","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"5ARK","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues1
DetailsModified residue: {"description":"Pyrrolidone carboxylic acid","evidences":[{"source":"UniProtKB","id":"P15467","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

246031

PDB entries from 2025-12-10

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