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4I2C

Ternary complex of mouse TdT with ssDNA and AMPcPP

Functional Information from GO Data
ChainGOidnamespacecontents
A0003677molecular_functionDNA binding
A0003887molecular_functionDNA-directed DNA polymerase activity
A0006281biological_processDNA repair
A0016779molecular_functionnucleotidyltransferase activity
A0034061molecular_functionDNA polymerase activity
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE NA A 601
ChainResidue
ATHR253
AVAL255
AVAL258
AHOH922
CDA4
CHOH101

site_idAC2
Number of Residues21
DetailsBINDING SITE FOR RESIDUE APC A 602
ChainResidue
AGLY341
AHIS342
AASP343
AASP345
APHE405
AASP434
AGLY449
ATRP450
AGLY452
AMN603
AMN604
AHOH859
AHOH874
AHOH884
AHOH962
AHOH981
AHOH991
CDA4
AGLY332
AGLY333
AARG336

site_idAC3
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MN A 603
ChainResidue
AASP343
AASP345
AASP434
AAPC602
AMN604
AHOH962

site_idAC4
Number of Residues5
DetailsBINDING SITE FOR RESIDUE MN A 604
ChainResidue
AASP343
AASP345
AAPC602
AMN603
AHOH981

Functional Information from PROSITE/UniProt
site_idPS00522
Number of Residues20
DetailsDNA_POLYMERASE_X DNA polymerase family X signature. GGFrRGkmtGhDVDFLItsP
ChainResidueDetails
AGLY332-PRO351

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues4
DetailsRegion: {"description":"Involved in DNA binding","evidences":[{"source":"PubMed","id":"11823435","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"23856622","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues9
DetailsBinding site: {"evidences":[{"evidenceCode":"ECO:0000305"},{"source":"PDB","id":"4I2B","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4I2C","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4I2D","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4I2E","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues3
DetailsBinding site: {"evidences":[{"evidenceCode":"ECO:0000305"},{"source":"PDB","id":"1JMS","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4I2B","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idMCSA1
Number of Residues3
DetailsM-CSA 632
ChainResidueDetails
AASP343metal ligand
AASP345metal ligand
AASP434metal ligand, proton acceptor, proton donor

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PDB entries from 2025-07-30

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