Annotations: 5TT5

Escherichia coli LigA (K115M) in complex with NAD+

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Thaumatin	e5tt5A1	A: beta barrels	X: Ntn/PP2C	H: Ntn	T: Penicillin acylase, catalytic domain	F: Thaumatin	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.287.610	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.3.0)
A	3.30.470.30	Alpha Beta	2-Layer Sandwich	D-amino Acid Aminotransferase	Chain A, domain 1	CATH (4.3.0)
A	1.10.150.20	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00633	Helix-hairpin-helix motif (HHH)	Helix-hairpin-helix motif	-	Motif
A	PF03119	NAD-dependent DNA ligase C4 zinc finger domain (DNA_ligase_ZBD)	NAD-dependent DNA ligase C4 zinc finger domain	DNA ligases catalyse the crucial step of joining the breaks in duplex DNA during DNA replication, repair and recombination, utilising either ATP or NAD(+) as a cofactor [1]. This family is a small zinc binding motif that is presumably DNA binding [1] ...	DNA ligases catalyse the crucial step of joining the breaks in duplex DNA during DNA replication, repair and recombination, utilising either ATP or NAD(+) as a cofactor [1]. This family is a small zinc binding motif that is presumably DNA binding [1]. IT is found only in NAD dependent DNA ligases [1].	Domain
A	PF03120	NAD-dependent DNA ligase OB-fold domain (OB_DNA_ligase)	NAD-dependent DNA ligase OB-fold domain	DNA ligases catalyse the crucial step of joining the breaks in duplex DNA during DNA replication, repair and recombination, utilising either ATP or NAD(+) as a cofactor [1]. This family is a small domain found after the adenylation domain Pfam:PF0165 ...	DNA ligases catalyse the crucial step of joining the breaks in duplex DNA during DNA replication, repair and recombination, utilising either ATP or NAD(+) as a cofactor [1]. This family is a small domain found after the adenylation domain Pfam:PF01653 in NAD dependent ligases [1]. OB-fold domains generally are involved in nucleic acid binding.	Domain
A	PF14520	SAM-like Helix-hairpin-helix tandem (HHH_5)	SAM-like Helix-hairpin-helix tandem	This entry represents a SAM-like helix-hairpin-helix domain found in functionally diverse proteins involved in DNA repair, recombination, transcription termination etc. This domain has a fold that is structurally similar to SAM domains. It is compose ...	This entry represents a SAM-like helix-hairpin-helix domain found in functionally diverse proteins involved in DNA repair, recombination, transcription termination etc. This domain has a fold that is structurally similar to SAM domains. It is composed of two helix-hairpin-helix motifs which are known DNA interaction motifs.	Domain
A	PF01653	NAD-dependent DNA ligase adenylation domain (DNA_ligase_aden)	NAD-dependent DNA ligase adenylation domain	DNA ligases catalyse the crucial step of joining the breaks in duplex DNA during DNA replication, repair and recombination, utilising either ATP or NAD(+) as a cofactor [1]. This domain is the catalytic adenylation domain. The NAD+ group is covalent ...	DNA ligases catalyse the crucial step of joining the breaks in duplex DNA during DNA replication, repair and recombination, utilising either ATP or NAD(+) as a cofactor [1]. This domain is the catalytic adenylation domain. The NAD+ group is covalently attached to this domain at the lysine in the KXDG motif of this domain. This enzyme- adenylate intermediate is an important feature of the proposed catalytic mechanism [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	DNA ligase	ligase activity, forming phosphoric ester bonds catalytic activity, acting on DNA catalytic activity, acting on a nucleic acid catalytic activity DNA ligase (NAD+) activity DNA ligase activity ligase activity DNA binding binding nucleic acid binding NAD+ binding NAD binding nucleotide binding nucleoside phosphate binding ligase activity, forming phosphoric ester bonds catalytic activity, acting on DNA catalytic activity, acting on a nucleic acid catalytic activity DNA ligase (NAD+) activity DNA ligase activity ligase activity DNA binding binding nucleic acid binding NAD+ binding NAD binding nucleotide binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding heterocyclic compound binding small molecule binding cation binding metal ion binding	nucleobase-containing compound metabolic process DNA replication metabolic process cellular process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process cellular response to stimulus response to stimulus cellular response to stress DNA damage response response to stress DNA repair	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR041663	DisA/LigA, helix-hairpin-helix motif	Domain
A	IPR004149	Zinc-finger, NAD-dependent DNA ligase C4-type	Domain
A	IPR001679	NAD-dependent DNA ligase	Family
A	IPR010994	RuvA domain 2-like	Homologous Superfamily
A	IPR001357	BRCT domain	Domain
A	IPR018239	NAD-dependent DNA ligase, active site	Active Site
A	IPR013840	NAD-dependent DNA ligase, N-terminal	Domain
A	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
A	IPR013839	NAD-dependent DNA ligase, adenylation	Domain
A	IPR004150	NAD-dependent DNA ligase, OB-fold	Domain
A	IPR060101	SAM-like helix-hairpin-helix tandem	Domain
A	IPR033136	NAD-dependent DNA ligase, conserved site	Conserved Site
A	IPR003583	Helix-hairpin-helix DNA-binding motif, class 1	Domain
A	IPR036420	BRCT domain superfamily	Homologous Superfamily

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.