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1Q78

Crystal structure of poly(A) polymerase in complex with 3'-dATP and magnesium chloride

Functional Information from GO Data
ChainGOidnamespacecontents
A0003723molecular_functionRNA binding
A0005634cellular_componentnucleus
A0016779molecular_functionnucleotidyltransferase activity
A0031123biological_processRNA 3'-end processing
A1990817molecular_functionpoly(A) RNA polymerase activity
Functional Information from PDB Data
site_idAC1
Number of Residues3
DetailsBINDING SITE FOR RESIDUE MG A 1002
ChainResidue
AASP113
AASP115
A3AT1000

site_idAC2
Number of Residues18
DetailsBINDING SITE FOR RESIDUE 3AT A 1000
ChainResidue
ALYS228
ATYR237
AGLY246
AVAL247
ATHR317
AMG1002
AHOH2043
AHOH2050
AHOH2060
AHOH2069
AHOH2108
AHOH2117
APHE100
AGLY101
ASER102
AASP115
AASN202
AVAL206

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues11
DetailsBinding site: {}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues4
DetailsSite: {"description":"Interaction with RNA","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues1
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"UniProtKB","id":"P51003","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues1
DetailsAnnotated By Reference To The Literature 1fa0
ChainResidueDetails
ALYS228

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PDB entries from 2026-01-21

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