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3RNT

CRYSTAL STRUCTURE OF GUANOSINE-FREE RIBONUCLEASE T1, COMPLEXED WITH VANADATE(V), SUGGESTS CONFORMATIONAL CHANGE UPON SUBSTRATE BINDING

Functional Information from GO Data
ChainGOidnamespacecontents
A0001411cellular_componenthyphal tip
A0003723molecular_functionRNA binding
A0004518molecular_functionnuclease activity
A0004519molecular_functionendonuclease activity
A0004521molecular_functionRNA endonuclease activity
A0004540molecular_functionRNA nuclease activity
A0016787molecular_functionhydrolase activity
A0016829molecular_functionlyase activity
A0030428cellular_componentcell septum
A0046589molecular_functionribonuclease T1 activity
Functional Information from PDB Data
site_idAC1
Number of Residues7
DetailsBINDING SITE FOR RESIDUE CA A 105
ChainResidue
AASP15
AHOH112
AHOH118
AHOH119
AHOH120
AHOH121
AHOH161

site_idAC2
Number of Residues10
DetailsBINDING SITE FOR RESIDUE VO4 A 106
ChainResidue
AGLU58
AARG77
AHIS92
AASN98
APHE100
AHOH175
AHOH176
AHOH183
ATYR38
AHIS40

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsACT_SITE: ACT_SITE => ECO:0000269|PubMed:2844811
ChainResidueDetails
ATYR45

site_idSWS_FT_FI2
Number of Residues1
DetailsACT_SITE: Proton acceptor => ECO:0000269|PubMed:2844811
ChainResidueDetails
ASER63

site_idSWS_FT_FI3
Number of Residues1
DetailsACT_SITE: Proton donor
ChainResidueDetails
AGLY97

Catalytic Information from CSA
site_idCSA1
Number of Residues3
DetailsAnnotated By Reference To The Literature 1b2m
ChainResidueDetails
AGLU58
AHIS40
AHIS92

site_idMCSA1
Number of Residues6
DetailsM-CSA 414
ChainResidueDetails
ATYR38electrostatic stabiliser
AHIS40proton shuttle (general acid/base)
AGLU58proton shuttle (general acid/base)
AARG77electrostatic stabiliser
AHIS92proton shuttle (general acid/base)
APHE100electrostatic stabiliser

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PDB entries from 2025-06-25

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