Annotations: 3MUK

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Bromodomain	e3mukA1	A: alpha bundles	X: Bromodomain-like	H: Bromodomain (From Topology)	T: Bromodomain	F: Bromodomain	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.920.10	Mainly Alpha	Up-down Bundle	Histone Acetyltransferase	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00439	Bromodomain (Bromodomain)	Bromodomain	Bromodomains are 110 amino acid long domains, that are found in many chromatin associated proteins. Bromodomains can interact specifically with acetylated lysine [3].	Domain
B [auth D]	PF00125	Core histone H2A/H2B/H3/H4 (Histone)	Core histone H2A/H2B/H3/H4	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Bromodomain-containing protein 4	p53 binding protein binding binding basal transcription machinery binding RNA polymerase binding RNA polymerase II complex binding basal RNA polymerase II transcription machinery binding RNA polymerase II C-terminal domain binding RNA polymerase core enzyme binding enzyme binding modification-dependent protein binding lysine-acetylated histone binding histone binding acetylation-dependent protein binding p53 binding protein binding binding basal transcription machinery binding RNA polymerase binding RNA polymerase II complex binding basal RNA polymerase II transcription machinery binding RNA polymerase II C-terminal domain binding RNA polymerase core enzyme binding enzyme binding modification-dependent protein binding lysine-acetylated histone binding histone binding acetylation-dependent protein binding DNA binding sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding double-stranded DNA binding organic cyclic compound binding nucleic acid binding transcription regulatory region nucleic acid binding transcription regulator activity transcription coregulator activity protein-macromolecule adaptor activity molecular adaptor activity protein-containing complex binding chromatin binding transcription coactivator activity protein serine/threonine kinase activity catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity GTP-dependent protein kinase activity catalytic activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups histone reader activity chromatin-protein adaptor activity P-TEFb complex binding RNA polymerase II CTD heptapeptide repeat modifying activity RNA polymerase II CTD heptapeptide repeat kinase activity	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process positive regulation of cell communication regulation of cellular process positive regulation of signal transduction positive regulation of canonical NF-kappaB signal transduction signaling positive regulation of biological process regulation of signal transduction intracellular signal transduction cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process positive regulation of cell communication regulation of cellular process positive regulation of signal transduction positive regulation of canonical NF-kappaB signal transduction signaling positive regulation of biological process regulation of signal transduction intracellular signal transduction cell communication positive regulation of response to stimulus regulation of intracellular signal transduction intracellular signaling cassette signal transduction positive regulation of cellular process regulation of biological process regulation of signaling biological regulation positive regulation of intracellular signal transduction canonical NF-kappaB signal transduction regulation of response to stimulus regulation of cell communication regulation of canonical NF-kappaB signal transduction positive regulation of signaling viral gene expression biological process involved in interspecies interaction between organisms negative regulation by host of viral transcription modulation by host of symbiont process viral process biological process involved in interaction with symbiont viral transcription biological process involved in symbiotic interaction cell cycle chromosome segregation cell cycle process developmental process multicellular organismal process inner cell mass cell proliferation cell population proliferation developmental growth chordate embryonic development growth embryo development in utero embryonic development multicellular organism development embryo development ending in birth or egg hatching anatomical structure development blastocyst growth blastocyst development adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains regulation of alpha-beta T cell activation regulation of leukocyte activation regulation of cell activation positive regulation of T cell differentiation alpha-beta T cell differentiation involved in immune response regulation of cell development positive regulation of immune response T cell activation cell differentiation regulation of T-helper cell differentiation alpha-beta T cell activation regulation of immune system process positive regulation of CD4-positive, alpha-beta T cell differentiation immune response T-helper cell differentiation alpha-beta T cell lineage commitment positive regulation of cell development immune effector process regulation of leukocyte cell-cell adhesion T-helper 17 cell differentiation cell fate commitment CD4-positive or CD8-positive, alpha-beta T cell lineage commitment positive regulation of alpha-beta T cell differentiation regulation of developmental process positive regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains cell development positive regulation of leukocyte cell-cell adhesion CD4-positive, alpha-beta T cell differentiation positive regulation of T-helper 17 cell differentiation positive regulation of T-helper cell differentiation positive regulation of cell-cell adhesion regulation of T cell differentiation positive regulation of lymphocyte activation alpha-beta T cell differentiation T cell activation involved in immune response positive regulation of cell differentiation leukocyte activation involved in immune response positive regulation of immune effector process regulation of cell-cell adhesion regulation of T-helper 17 cell differentiation hemopoiesis regulation of cell adhesion cell activation positive regulation of T-helper 17 type immune response regulation of CD4-positive, alpha-beta T cell activation immune system process regulation of lymphocyte activation regulation of immune effector process regulation of leukocyte differentiation mononuclear cell differentiation regulation of cell differentiation lymphocyte differentiation cell activation involved in immune response CD4-positive, alpha-beta T cell differentiation involved in immune response positive regulation of developmental process positive regulation of cell activation positive regulation of T-helper 17 cell lineage commitment positive regulation of leukocyte activation T cell differentiation positive regulation of adaptive immune response CD4-positive, alpha-beta T cell lineage commitment positive regulation of immune system process positive regulation of T cell activation regulation of adaptive immune response T-helper cell lineage commitment T-helper 17 cell lineage commitment positive regulation of alpha-beta T cell activation regulation of immune response positive regulation of multicellular organismal process leukocyte differentiation cellular developmental process regulation of CD4-positive, alpha-beta T cell differentiation regulation of alpha-beta T cell differentiation lymphocyte activation leukocyte cell-cell adhesion leukocyte activation positive regulation of CD4-positive, alpha-beta T cell activation cell adhesion regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains cell-cell adhesion alpha-beta T cell activation involved in immune response positive regulation of hemopoiesis CD4-positive, alpha-beta T cell activation regulation of multicellular organismal process lymphocyte activation involved in immune response positive regulation of cell fate commitment regulation of lymphocyte differentiation regulation of multicellular organismal development regulation of T-helper 17 cell lineage commitment regulation of T-helper 17 type immune response regulation of cell fate commitment positive regulation of cell adhesion regulation of T cell activation T cell differentiation involved in immune response T cell lineage commitment adaptive immune response positive T cell selection regulation of hemopoiesis positive regulation of leukocyte differentiation T cell selection positive regulation of lymphocyte differentiation T-helper 17 type immune response regulation of cell cycle phase transition negative regulation of biological process regulation of cellular response to stress negative regulation of cell cycle regulation of cell cycle checkpoint negative regulation of cell cycle phase transition regulation of cell cycle process DNA integrity checkpoint signaling negative regulation of DNA damage checkpoint negative regulation of cell cycle checkpoint DNA damage checkpoint signaling negative regulation of signaling negative regulation of intracellular signal transduction cell cycle phase transition negative regulation of cell communication regulation of response to stress negative regulation of cellular process positive regulation of cell cycle process regulation of cell cycle negative regulation of response to stimulus negative regulation of cell cycle process negative regulation of signal transduction positive regulation of cell cycle cell cycle checkpoint signaling positive regulation of cell cycle phase transition signal transduction in response to DNA damage regulation of DNA damage checkpoint cellular biosynthetic process RNA metabolic process regulation of primary metabolic process regulation of nitrogen compound metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process organic substance metabolic process heterocycle metabolic process organic substance biosynthetic process nitrogen compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process cellular metabolic process cellular nitrogen compound metabolic process primary metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process heterocycle biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process aromatic compound biosynthetic process organic cyclic compound biosynthetic process metabolic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process cellular aromatic compound metabolic process regulation of defense response regulation of response to external stimulus defense response regulation of inflammatory response response to external stimulus inflammatory response positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of macromolecule metabolic process positive regulation of nucleobase-containing compound metabolic process positive regulation of RNA metabolic process positive regulation of DNA-templated transcription positive regulation of cellular metabolic process positive regulation of biosynthetic process positive regulation of nitrogen compound metabolic process positive regulation of RNA biosynthetic process positive regulation of cellular biosynthetic process transcription by RNA polymerase II regulation of transcription by RNA polymerase II regulation of DNA-templated transcription elongation regulation of transcription elongation by RNA polymerase II positive regulation of transcription by RNA polymerase II transcription elongation by RNA polymerase II positive regulation of transcription elongation by RNA polymerase II positive regulation of DNA-templated transcription, elongation DNA-templated transcription elongation G2/M transition of mitotic cell cycle mitotic cell cycle regulation of mitotic cell cycle positive regulation of mitotic cell cycle phase transition positive regulation of mitotic cell cycle cell cycle G2/M phase transition positive regulation of G2/M transition of mitotic cell cycle regulation of G2/M transition of mitotic cell cycle regulation of cell cycle G2/M phase transition positive regulation of cell cycle G2/M phase transition regulation of mitotic cell cycle phase transition mitotic cell cycle process mitotic cell cycle phase transition protein-DNA complex organization cellular component organization protein-containing complex organization chromatin organization chromatin remodeling cellular component organization or biogenesis	membrane-bounded organelle protein-containing complex intracellular anatomical structure transcription elongation factor complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen protein kinase complex intracellular organelle nucleoplasm catalytic complex cyclin/CDK positive transcription elongation factor complex membrane-bounded organelle protein-containing complex intracellular anatomical structure transcription elongation factor complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen protein kinase complex intracellular organelle nucleoplasm catalytic complex cyclin/CDK positive transcription elongation factor complex cyclin-dependent protein kinase holoenzyme complex intracellular membrane-bounded organelle cellular anatomical entity transferase complex, transferring phosphorus-containing groups organelle lumen carboxy-terminal domain protein kinase complex organelle serine/threonine protein kinase complex nuclear cyclin-dependent protein kinase holoenzyme complex nuclear lumen condensed nuclear chromosome nuclear chromosome chromosome intracellular non-membrane-bounded organelle condensed chromosome non-membrane-bounded organelle protein-DNA complex chromatin
B [auth D]	peptide of Histone H3.3	DNA binding protein-containing complex binding binding chromatin binding organic cyclic compound binding nucleic acid binding nucleosome binding nucleosomal DNA binding chromatin DNA binding sequence-specific DNA binding double-stranded DNA binding RNA polymerase II transcription regulatory region sequence-specific DNA binding cis-regulatory region sequence-specific DNA binding sequence-specific double-stranded DNA binding DNA binding protein-containing complex binding binding chromatin binding organic cyclic compound binding nucleic acid binding nucleosome binding nucleosomal DNA binding chromatin DNA binding sequence-specific DNA binding double-stranded DNA binding RNA polymerase II transcription regulatory region sequence-specific DNA binding cis-regulatory region sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding transcription regulatory region nucleic acid binding RNA polymerase II cis-regulatory region sequence-specific DNA binding protein heterodimerization activity protein binding protein dimerization activity core promoter sequence-specific DNA binding RNA polymerase II core promoter sequence-specific DNA binding structural molecule activity structural constituent of chromatin	protein-containing complex organization protein-DNA complex assembly protein-DNA complex organization cellular component organization cellular component biogenesis cellular component assembly chromatin organization protein-containing complex assembly chromatin remodeling cellular process cellular component organization or biogenesis nucleosome assembly nucleosome organization regulation of biological process protein-containing complex organization protein-DNA complex assembly protein-DNA complex organization cellular component organization cellular component biogenesis cellular component assembly chromatin organization protein-containing complex assembly chromatin remodeling cellular process cellular component organization or biogenesis nucleosome assembly nucleosome organization regulation of biological process regulation of growth regulation of cellular process regulation of cellular component organization positive regulation of biological process biological regulation growth positive regulation of cell growth regulation of cell growth cell growth positive regulation of growth positive regulation of cellular process organelle organization telomere organization chromosome organization	extracellular region cellular anatomical entity extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle organelle extracellular space vesicle extracellular membrane-bounded organelle protein-containing complex intracellular anatomical structure protein-DNA complex nucleosome extracellular region cellular anatomical entity extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle organelle extracellular space vesicle extracellular membrane-bounded organelle protein-containing complex intracellular anatomical structure protein-DNA complex nucleosome chromatin chromosome intracellular organelle intracellular non-membrane-bounded organelle non-membrane-bounded organelle chromosome, telomeric region chromosomal region 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	IPR043508	Brdt, bromodomain, repeat I	Domain
A	IPR027353	NET domain	Domain
A	IPR043509	Brdt, bromodomain, repeat II	Domain
A	IPR018359	Bromodomain, conserved site	Conserved Site
A	IPR001487	Bromodomain	Domain
A	IPR038336	NET domain superfamily	Homologous Superfamily
A	IPR031354	Bromodomain protein 4, C-terminal	Domain
A	IPR036427	Bromodomain-like superfamily	Homologous Superfamily
B [auth D]	IPR009072	Histone-fold	Homologous Superfamily
B [auth D]	IPR007125	Histone H2A/H2B/H3	Domain
B [auth D]	IPR000164	Histone H3/CENP-A	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B [auth D]	Pharos: P84243	malignant glioma bone giant cell tumor glioblastoma giant cell glioblastoma mixed glioma glioma lung adenocarcinoma medulloblastoma ovarian cancer astrocytoma (excluding glioblastoma) psoriasis tuberculosis chondroblastoma ependymoma Glioma of Brain, Familial malignant glioma bone giant cell tumor glioblastoma giant cell glioblastoma mixed glioma glioma lung adenocarcinoma medulloblastoma ovarian cancer astrocytoma (excluding glioblastoma) psoriasis tuberculosis chondroblastoma ependymoma Glioma of Brain, Familial intellectual disability lung cancer malignant mesothelioma pituitary cancer atopic eczema subependymal giant cell astrocytoma breast cancer cutaneous lupus erythematosus glioma susceptibility 1 invasive ductal breast carcinoma malignant colon neoplasm malignant pancreatic neoplasm non-small cell lung carcinoma plasma cell myeloma atypical teratoid rhabdoid tumor subependymoma breast carcinoma Down syndrome exocrine pancreatic carcinoma hepatocellular carcinoma

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
B [auth D]	PRK	Parent Component: LYS RESID: AA0475 PSI-MOD : N6-propanoyl-L-lysine MOD:01398

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.