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3L2P

Human DNA Ligase III Recognizes DNA Ends by Dynamic Switching Between Two DNA Bound States

Functional Information from GO Data
ChainGOidnamespacecontents
A0003677molecular_functionDNA binding
A0003909molecular_functionDNA ligase activity
A0003910molecular_functionDNA ligase (ATP) activity
A0005524molecular_functionATP binding
A0006281biological_processDNA repair
A0006310biological_processDNA recombination
A0071897biological_processDNA biosynthetic process
Functional Information from PDB Data
site_idAC1
Number of Residues11
DetailsBINDING SITE FOR RESIDUE AMP A 901
ChainResidue
AGLU419
ALYS590
CDG12
AILE420
ALYS421
ATYR422
AARG426
APHE508
ALYS573
ATRP586
ALYS588

Functional Information from PROSITE/UniProt
site_idPS00333
Number of Residues23
DetailsDNA_LIGASE_A2 ATP-dependent DNA ligase signature 2. EGLVLKdvkgt...YEpgk...Rhwl..KVK
ChainResidueDetails
AGLU568-LYS590

site_idPS00697
Number of Residues9
DetailsDNA_LIGASE_A1 ATP-dependent DNA ligase AMP-binding site. EIKYDGERV
ChainResidueDetails
AGLU419-VAL427

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues17
DetailsRegion: {"description":"Interaction with DNA","evidences":[{"source":"PubMed","id":"20518483","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsActive site: {"description":"N6-AMP-lysine intermediate","evidences":[{"source":"PROSITE-ProRule","id":"PRU10135","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"20518483","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues3
DetailsBinding site: {"evidences":[{"evidenceCode":"ECO:0000305"},{"source":"PDB","id":"3L2P","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues5
DetailsBinding site: {"evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

243911

PDB entries from 2025-10-29

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