Structure of PDB 6krh Chain A

Receptor sequence
>6krhA (length=321) Species: 83332 (Mycobacterium tuberculosis H37Rv) [Search protein sequence]
QTAPEVLRQWQALAEEVREHQFRYYVRDAPIISDAEFDELLRRLEALEEQ
HPELRTPDSPTQLVGGAGFATDFEPVDHLERMLSLDNAFTADELAAWAGR
IHAEVGDAAHYLCELKIDGVALSLVYREGRLTRASTRGDGRTGEDVTLNA
RTIADVPERLTPGDDYPVPEVLEVRGEVFFRLDDFQALNASLVEEGKAPF
ANPRNSAAGSLRQKDPAVTARRRLRMICYGLGHVEGFRPATLHQAYLALR
AWGLPVSEHTTLATDLAGVRERIDYWGEHRHEVDHEIDGVVVKVDEVALQ
RRLGSTSRAPRWAIAYKYPPE
3D structure
PDB6krh Salt bridges at the subdomain interfaces of the adenylation domain and active-site residues of Mycobacterium tuberculosis NAD + -dependent DNA ligase A (MtbLigA) are important for the initial steps of nick-sealing activity.
ChainA
Resolution2.6 Å
3D
structure
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Enzymatic activity
Enzyme Commision number 6.5.1.2: DNA ligase (NAD(+)).
Interaction with ligand
Site
#
Ligand Ligand
chain
Binding residues on receptor
(original residue number in PDB)
Binding residues on receptor
(residue number reindexed from 1)
Binding affinity
BS01 AMP A L92 N94 K123 I124 Y236 V298 K324 L85 N87 K116 I117 Y229 V291 K317
BS02 NMN A Y31 Y32 P37 S40 F44 D45 Y24 Y25 P30 S33 F37 D38
Gene Ontology
Molecular Function
GO:0003911 DNA ligase (NAD+) activity

View graph for
Molecular Function
External links
PDB RCSB:6krh, PDBe:6krh, PDBj:6krh
PDBsum6krh
PubMed34076591
UniProtP9WNV1|DNLJ_MYCTU DNA ligase A (Gene Name=ligA)

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