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4I2B

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 Residues4
DetailsBINDING SITE FOR RESIDUE NA A 601
ChainResidue
ATHR253
AVAL255
AVAL258
CDA4

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE MG A 602
ChainResidue
AASP343
AASP345
AAPC603
AHOH911

site_idAC3
Number of Residues21
DetailsBINDING SITE FOR RESIDUE APC A 603
ChainResidue
AGLY333
AARG336
AGLY341
AHIS342
AASP343
AASP345
AASP399
AGLY449
ATRP450
AGLY452
AGLU457
AASN474
AMG602
AMG604
AHOH726
AHOH911
AHOH947
AHOH948
AHOH981
AHOH1025
AGLY332

site_idAC4
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MG A 604
ChainResidue
AASP343
AASP345
AASP434
AAPC603
AHOH947
AHOH1025

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

243911

PDB entries from 2025-10-29

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