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1RSN

RIBONUCLEASE (RNASE SA) (E.C.3.1.4.8) COMPLEXED WITH EXO-2',3'-CYCLOPHOSPHOROTHIOATE

Functional Information from GO Data
ChainGOidnamespacecontents
A0003723molecular_functionRNA binding
A0004518molecular_functionnuclease activity
A0004519molecular_functionendonuclease activity
A0004521molecular_functionRNA endonuclease activity
A0004540molecular_functionRNA nuclease activity
A0005576cellular_componentextracellular region
A0016787molecular_functionhydrolase activity
A0016829molecular_functionlyase activity
A0046589molecular_functionribonuclease T1 activity
B0003723molecular_functionRNA binding
B0004518molecular_functionnuclease activity
B0004519molecular_functionendonuclease activity
B0004521molecular_functionRNA endonuclease activity
B0004540molecular_functionRNA nuclease activity
B0005576cellular_componentextracellular region
B0016787molecular_functionhydrolase activity
B0016829molecular_functionlyase activity
B0046589molecular_functionribonuclease T1 activity
Functional Information from PDB Data
site_idAC1
Number of Residues8
DetailsBINDING SITE FOR RESIDUE SO4 A 98
ChainResidue
AALA62
AARG63
ATHR64
AHOH216
AHOH252
BPRO12
BARG68
BHOH147

site_idAC2
Number of Residues17
DetailsBINDING SITE FOR RESIDUE SGP A 97
ChainResidue
AVAL36
APHE37
AGLN38
AASN39
AARG40
AGLU41
AGLU54
AARG65
AARG69
AHIS85
ATYR86
AHOH200
AHOH245
AHOH282
BSER3
BALA10
AVAL35

site_idAC3
Number of Residues12
DetailsBINDING SITE FOR RESIDUE SGP B 97
ChainResidue
AASN20
BVAL35
BPHE37
BGLN38
BASN39
BARG40
BGLU41
BGLU54
BARG65
BARG69
BHIS85
BTYR86

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsActive site: {"description":"Proton acceptor"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues2
DetailsActive site: {"description":"Proton donor"}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues3
DetailsAnnotated By Reference To The Literature 1c54
ChainResidueDetails
AHIS85
AGLU54
AARG65

site_idCSA2
Number of Residues3
DetailsAnnotated By Reference To The Literature 1c54
ChainResidueDetails
BHIS85
BGLU54
BARG65

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PDB entries from 2025-07-09

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