Annotations: 2KNG

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Lsr2_C	e2kngA1	A: alpha arrays	X: LEM/SAP HeH motif-like	H: LEM/SAP HeH motif	T: LEM/SAP HeH motif	F: Lsr2_C	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	4.10.320.10	Few Secondary Structures	Irregular	Dihydrolipoamide Transferase	E3-binding domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF23359	Lsr2 DNA-binding domain (Lsr2_DNA-bd)	Lsr2 DNA-binding domain	Lsr2 is a small, basic DNA-bridging protein present in Mycobacterium and related actinomycetes. It is a functional homologue of the H-NS-like proteins [1]. H-NS proteins play a role in nucleoid organisation and also function as a pleiotropic regulato ...	Lsr2 is a small, basic DNA-bridging protein present in Mycobacterium and related actinomycetes. It is a functional homologue of the H-NS-like proteins [1]. H-NS proteins play a role in nucleoid organisation and also function as a pleiotropic regulator of gene expression [1,2]. This entry represents the DNA-binding domain found at the C-terminal, which binds AT-rich regions of chromosomal DNA and physically protects DNA from damage by reactive oxygen intermediates [1,2]. This domain is also found in protein Ku from Mycobacterium phage Omega.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Protein lsr2	DNA binding binding nucleic acid binding acyltransferase activity transferase activity catalytic activity	regulation of cellular process RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of biological process biological regulation primary metabolic process regulation of cellular process RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of biological process biological regulation primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of gene expression biosynthetic process cellular process metabolic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process cellular response to stimulus response to stimulus DNA metabolic process cellular response to stress response to stress DNA protection response to hydrogen peroxide response to oxidative stress response to chemical response to oxygen-containing compound response to reactive oxygen species response to metal ion response to iron ion cellular response to chemical stimulus cellular response to oxygen levels response to oxygen levels response to abiotic stimulus	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane nucleoid external encapsulating structure cell wall peptidoglycan-based cell wall

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR024412	Lsr2 dimerization domain	Domain
A	IPR055370	Lsr2, DNA-binding domain	Domain
A	IPR036625	E3-binding domain superfamily	Homologous Superfamily
A	IPR042261	Lsr2-like, dimerization domain	Homologous Superfamily

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.