Annotations: 2MW2

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2mw2a_	All alpha proteins	Open three-helical up-and-down bundle	Hemolysin expression modulating protein HHA	Hemolysin expression modulating protein HHA	Hemolysin expression modulating protein HHA	(Escherichia coli K-12 ) [TaxId: 83333 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	HHA-like	8037417	3001875	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF05321	e2mw2A1	A: alpha arrays	X: HHA-like	H: Hemolysin expression modulating protein HHA (From Topology)	T: Hemolysin expression modulating protein HHA	F: PF05321	ECOD (1.6)
B	PF22470	e2mw2B1	A: alpha duplicates or obligate multimers	X: H-NS histone-like proteins, N-terminal domain (From Topology)	H: H-NS histone-like proteins, N-terminal domain (From Topology)	T: H-NS histone-like proteins, N-terminal domain	F: PF22470	ECOD (1.6)
C	PF22470	e2mw2C1	A: alpha duplicates or obligate multimers	X: H-NS histone-like proteins, N-terminal domain (From Topology)	H: H-NS histone-like proteins, N-terminal domain (From Topology)	T: H-NS histone-like proteins, N-terminal domain	F: PF22470	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.1280.40	Mainly Alpha	Up-down Bundle	Monooxygenase	HHA	CATH (4.3.0)
B	1.10.287.1050	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	H-NS histone-like proteins	CATH (4.3.0)
C	1.10.287.1050	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	H-NS histone-like proteins	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF05321	Haemolysin expression modulating protein (HHA)	Haemolysin expression modulating protein	-	Family
B, C	PF00816	H-NS histone family (Histone_HNS)	H-NS histone family	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Hemolysin expression-modulating protein Hha	DNA binding binding organic cyclic compound binding nucleic acid binding	regulation of biosynthetic process regulation of biological process regulation of cellular process cellular biosynthetic process cellular metabolic process biological regulation regulation of cellular metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of cellular biosynthetic process regulation of gene expression organic substance metabolic process biosynthetic process organic substance biosynthetic process regulation of biosynthetic process regulation of biological process regulation of cellular process cellular biosynthetic process cellular metabolic process biological regulation regulation of cellular metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of cellular biosynthetic process regulation of gene expression organic substance metabolic process biosynthetic process organic substance biosynthetic process regulation of macromolecule biosynthetic process metabolic process cellular process macromolecule metabolic process regulation of metabolic 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 primary metabolic process nucleobase-containing compound biosynthetic process nucleic acid metabolic process organic cyclic compound metabolic process organic cyclic compound biosynthetic process regulation of DNA-templated transcription	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol H-NS-Hha complex protein-containing complex transcription regulator complex
B, C	DNA-binding protein H-NS	DNA binding bent DNA binding binding organic cyclic compound binding nucleic acid binding sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding double-stranded DNA binding transcription regulatory region nucleic acid binding DNA secondary structure binding minor groove of adenine-thymine-rich DNA binding RNA binding protein binding DNA binding bent DNA binding binding organic cyclic compound binding nucleic acid binding sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding double-stranded DNA binding transcription regulatory region nucleic acid binding DNA secondary structure binding minor groove of adenine-thymine-rich DNA binding RNA binding protein binding protein dimerization activity structural molecule activity structural constituent of chromatin identical protein binding transcription regulator activity DNA-binding transcription repressor activity DNA-binding transcription factor activity	regulation of cellular process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process negative regulation of DNA-templated transcription regulation of biological process cellular metabolic process regulation of cellular process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process negative regulation of DNA-templated transcription regulation of biological process cellular metabolic process negative regulation of metabolic process primary metabolic process regulation of cellular metabolic process negative regulation of cellular biosynthetic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process negative regulation of macromolecule biosynthetic process organic cyclic compound biosynthetic process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process cellular biosynthetic process RNA metabolic process RNA biosynthetic process nucleic acid biosynthetic process organic substance metabolic process negative regulation of cellular process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process biological regulation regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process negative regulation of biosynthetic process cellular process cellular component organization organelle organization bacterial nucleoid packaging chromosome organization cellular component organization or biogenesis organonitrogen compound biosynthetic process post-transcriptional regulation of gene expression protein metabolic process organonitrogen compound metabolic process regulation of protein metabolic process translation regulation of translation cell aggregation biofilm formation regulation of single-species biofilm formation on inanimate substrate biological process involved in intraspecies interaction between organisms single-species biofilm formation on inanimate substrate single-species biofilm formation aggregation of unicellular organisms submerged biofilm formation negative regulation of single-species biofilm formation negative regulation of single-species biofilm formation on inanimate substrate regulation of single-species biofilm formation single-species submerged biofilm formation	H-NS-Hha complex protein-containing complex intracellular anatomical structure cytoplasm cellular anatomical entity cytosol bacterial nucleoid nucleoid DNA bending complex H-NS complex intracellular organelle organelle intracellular non-membrane-bounded organelle non-membrane-bounded organelle H-NS-Hha complex protein-containing complex intracellular anatomical structure cytoplasm cellular anatomical entity cytosol bacterial nucleoid nucleoid DNA bending complex H-NS complex intracellular organelle organelle intracellular non-membrane-bounded organelle non-membrane-bounded organelle membrane transcription regulator complex protein-DNA complex H-NS-Cnu complex transcription repressor complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036666	HHA superfamily	Homologous Superfamily
A	IPR007985	Haemolysin expression modulating, HHA	Family
B, C	IPR001801	Histone-like protein H-NS	Family
B, C	IPR027454	Histone-like protein H-NS, N-terminal	Homologous Superfamily
B, C	IPR027444	Histone-like protein H-NS, C-terminal domain	Domain
B, C	IPR037150	Histone-like protein H-NS, C-terminal domain superfamily	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 R01GM133198.