Annotations: 4B7Y

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	MSL1 dimerisation region-like	8046155	4004914	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	MSL1 dimerisation region-like	8092986	3002655	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	MSL1 dimerisation region-like	8092986	3002655	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)
C	zf-RING_6	e4b7yC1	A: few secondary structure elements	X: RING/U-box-like	H: RING/U-box-like	T: RING/U-box	F: zf-RING_6	ECOD (1.6)
D	zf-C3HC4_4	e4b7yD2	A: few secondary structure elements	X: RING/U-box-like	H: RING/U-box-like	T: RING/U-box	F: zf-C3HC4_4	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C	3.30.40.10	Alpha Beta	2-Layer Sandwich	Herpes Virus-1	Zinc/RING finger domain, C3HC4 (zinc finger)	CATH (4.3.0)
D	3.30.40.10	Alpha Beta	2-Layer Sandwich	Herpes Virus-1	Zinc/RING finger domain, C3HC4 (zinc finger)	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF16801	Dimerisation domain of Male-specific-Lethal 1 (MSL1_dimer)	Dimerisation domain of Male-specific-Lethal 1	-	Coiled-coil
C, D	PF16685	zinc RING finger of MSL2 (zf-RING_10)	zinc RING finger of MSL2	zf-RING_10 is an N-terminal domain on E3 ubiquitin-protein ligase msl-2 proteins. The domain binds MSL1 and exhibits ubiquitin E3 ligase activity towards H2B K34, the histone proteins [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	MALE-SPECIFIC LETHAL 1 HOMOLOG	protein-containing complex binding chromatin binding binding	regulation of cellular process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process regulation of biological process positive regulation of nucleobase-containing compound metabolic process cellular metabolic process primary metabolic process regulation of cellular process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process regulation of biological process positive regulation of nucleobase-containing compound metabolic process cellular metabolic process primary metabolic process regulation of cellular metabolic process positive regulation of RNA metabolic process organic cyclic compound metabolic process regulation of gene expression 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 positive regulation of DNA-templated transcription cellular biosynthetic process positive regulation of biological process RNA metabolic process positive regulation of cellular metabolic process RNA biosynthetic process nucleic acid biosynthetic process organic substance metabolic process positive regulation of biosynthetic process positive regulation of cellular process regulation of RNA biosynthetic 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 positive regulation of RNA biosynthetic process cellular process positive regulation of cellular biosynthetic process protein-DNA complex organization cellular component organization protein-containing complex organization chromatin organization chromatin remodeling cellular component organization or biogenesis	protein-containing complex intracellular anatomical structure catalytic complex protein-DNA complex chromatin chromosome transferase complex cellular anatomical entity histone acetyltransferase complex MSL complex acetyltransferase complex H4 histone acetyltransferase complex intracellular organelle organelle protein-containing complex intracellular anatomical structure catalytic complex protein-DNA complex chromatin chromosome transferase complex cellular anatomical entity histone acetyltransferase complex MSL complex acetyltransferase complex H4 histone acetyltransferase complex intracellular organelle organelle intracellular non-membrane-bounded organelle protein acetyltransferase complex intracellular protein-containing complex non-membrane-bounded organelle membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body nucleoplasm organelle lumen nuclear lumen
C, D	MALE-SPECIFIC LETHAL 2 HOMOLOG	aminoacyltransferase activity ubiquitin-like protein transferase activity catalytic activity, acting on a protein acyltransferase activity ubiquitin-like protein ligase activity ubiquitin protein ligase activity transferase activity catalytic activity ubiquitin-protein transferase activity cation binding ion binding binding metal ion binding small molecule binding	regulation of cellular process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process regulation of biological process positive regulation of nucleobase-containing compound metabolic process cellular metabolic process primary metabolic process regulation of cellular process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process regulation of biological process positive regulation of nucleobase-containing compound metabolic process cellular metabolic process primary metabolic process regulation of cellular metabolic process positive regulation of RNA metabolic process organic cyclic compound metabolic process regulation of gene expression 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 positive regulation of DNA-templated transcription cellular biosynthetic process positive regulation of biological process RNA metabolic process positive regulation of cellular metabolic process RNA biosynthetic process nucleic acid biosynthetic process organic substance metabolic process positive regulation of biosynthetic process positive regulation of cellular process regulation of RNA biosynthetic 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 positive regulation of RNA biosynthetic process cellular process positive regulation of cellular biosynthetic process organonitrogen compound metabolic process protein ubiquitination macromolecule modification protein metabolic process post-translational protein modification protein modification process protein modification by small protein conjugation protein modification by small protein conjugation or removal	protein-containing complex intracellular anatomical structure catalytic complex protein-DNA complex chromatin chromosome transferase complex cellular anatomical entity histone acetyltransferase complex MSL complex acetyltransferase complex H4 histone acetyltransferase complex intracellular organelle organelle protein-containing complex intracellular anatomical structure catalytic complex protein-DNA complex chromatin chromosome transferase complex cellular anatomical entity histone acetyltransferase complex MSL complex acetyltransferase complex H4 histone acetyltransferase complex intracellular organelle organelle intracellular non-membrane-bounded organelle protein acetyltransferase complex intracellular protein-containing complex non-membrane-bounded organelle membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR031840	Protein male-specific lethal-1, dimerisation domain	Domain
A, B	IPR026711	Protein male-specific lethal-1	Family
A, B	IPR029332	PEHE domain	Domain
C, D	IPR033467	Tesmin/TSO1-like CXC domain	Domain
C, D	IPR013083	Zinc finger, RING/FYVE/PHD-type	Homologous Superfamily
C, D	IPR037922	E3 ubiquitin-protein ligase MSL2	Family
C, D	IPR032049	E3 ubiquitin-protein ligase Msl2, CXC domain	Domain
C, D	IPR001841	Zinc finger, RING-type	Domain
C, D	IPR032043	E3 ubiquitin-protein ligase Msl2, zinc RING finger	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: Q68DK7	chronic obstructive pulmonary disease ovarian cancer subependymal giant cell astrocytoma diabetes mellitus Pick disease tuberculosis myopathy plasma cell myeloma
C, D	Pharos: Q9HCI7	atrial fibrillation malignant mesothelioma myocardial infarction attention deficit hyperactivity disorder, inattentive type medulloblastoma osteosarcoma bipolar disorder metabolic syndrome X psoriasis

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.