Annotations: 4BPK

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C	SCOP2B Superfamily	BH3 domain	8051934	3002075	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	BH3 domain	8051934	3002075	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	Bcl-2	e4bpkA1	A: alpha arrays	X: Toxins' membrane translocation domains	H: Bcl-2 inhibitors of programmed cell death (From Topology)	T: Bcl-2 inhibitors of programmed cell death	F: Bcl-2	ECOD (1.6)
B	Bcl-2	e4bpkB1	A: alpha arrays	X: Toxins' membrane translocation domains	H: Bcl-2 inhibitors of programmed cell death (From Topology)	T: Bcl-2 inhibitors of programmed cell death	F: Bcl-2	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF02180	Bcl-2 homology region 4 (BH4)	Bcl-2 homology region 4	-	Family
A, B	PF00452	Apoptosis regulator proteins, Bcl-2 family (Bcl-2)	Apoptosis regulator proteins, Bcl-2 family	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	BCL-2-LIKE PROTEIN 1	protein binding binding BH domain binding protein domain specific binding death domain binding BH3 domain binding identical protein binding kinase binding enzyme binding protein kinase binding	developmental process multicellular organismal process gonad development reproductive system development reproductive process sex differentiation animal organ development developmental process involved in reproduction male gonad development male sex differentiation multicellular organism development development of primary male sexual characteristics development of primary sexual characteristics anatomical structure development reproductive structure development developmental process multicellular organismal process gonad development reproductive system development reproductive process sex differentiation animal organ development developmental process involved in reproduction male gonad development male sex differentiation multicellular organism development development of primary male sexual characteristics development of primary sexual characteristics anatomical structure development reproductive structure development system development spermatogenesis sexual reproduction multicellular organismal reproductive process male gamete generation gamete generation cell population proliferation mononuclear cell proliferation dendritic cell proliferation cellular process leukocyte proliferation fertilization cellular response to stimulus extrinsic apoptotic signaling pathway via death domain receptors regulation of cellular process response to stimulus signaling negative regulation of signaling negative regulation of biological process regulation of signal transduction regulation of programmed cell death extrinsic apoptotic signaling pathway negative regulation of cell communication cell communication negative regulation of extrinsic apoptotic signaling pathway negative regulation of apoptotic signaling pathway negative regulation of cellular process signal transduction regulation of biological process regulation of signaling cell surface receptor signaling pathway negative regulation of response to stimulus negative regulation of programmed cell death regulation of apoptotic process biological regulation negative regulation of extrinsic apoptotic signaling pathway via death domain receptors cell death negative regulation of signal transduction regulation of extrinsic apoptotic signaling pathway apoptotic signaling pathway negative regulation of apoptotic process regulation of response to stimulus regulation of extrinsic apoptotic signaling pathway via death domain receptors regulation of cell communication apoptotic process programmed cell death regulation of apoptotic signaling pathway regulation of growth growth regulation of anoikis negative regulation of anoikis anoikis cellular response to nitrogen compound cellular response to chemical stimulus response to chemical response to nitrogen compound cellular response to alkaloid response to alkaloid regulation of localization apoptotic mitochondrial changes localization regulation of biological quality positive regulation of membrane permeability negative regulation of cellular component organization establishment of localization regulation of organelle organization regulation of membrane permeability negative regulation of mitochondrial outer membrane permeabilization involved in apoptotic signaling pathway regulation of mitochondrial membrane permeability involved in apoptotic process regulation of cellular component organization negative regulation of mitochondrial membrane permeability transport mitochondrial outer membrane permeabilization involved in programmed cell death mitochondrial membrane organization cellular component organization positive regulation of mitochondrial membrane permeability involved in apoptotic process positive regulation of mitochondrial membrane permeability cellular component organization or biogenesis regulation of mitochondrial membrane permeability mitochondrial transport mitochondrion organization membrane organization regulation of transport organelle organization negative regulation of organelle organization regulation of mitochondrial outer membrane permeabilization involved in apoptotic signaling pathway regulation of mitochondrion organization negative regulation of membrane permeability mitochondrial outer membrane permeabilization embryo development ending in birth or egg hatching chordate embryonic development embryo development in utero embryonic development apoptotic process in bone marrow cell dendritic cell apoptotic process leukocyte apoptotic process signal transduction in absence of ligand extrinsic apoptotic signaling pathway in absence of ligand negative regulation of reproductive process regulation of reproductive process regulation of cytokinesis regulation of cell cycle process cytokinesis regulation of cell division cell division cell cycle regulation of cell cycle cell cycle process female gonad development female sex differentiation development of primary female sexual characteristics ovarian follicle development regulation of release of cytochrome c from mitochondria negative regulation of release of cytochrome c from mitochondria release of cytochrome c from mitochondria cellular response to acid chemical cellular response to amino acid stimulus response to acid chemical response to amino acid regulation of leukocyte proliferation positive regulation of cell population proliferation positive regulation of biological process regulation of cell population proliferation positive regulation of leukocyte proliferation positive regulation of mononuclear cell proliferation regulation of mononuclear cell proliferation positive regulation of cellular process cellular developmental process cell development programmed cell death involved in cell development cell differentiation ectopic germ cell programmed cell death negative regulation of catabolic process catabolic process negative regulation of metabolic process autophagy regulation of catabolic process regulation of autophagy negative regulation of autophagy metabolic process process utilizing autophagic mechanism regulation of metabolic process response to ketone response to cycloheximide response to alcohol response to oxygen-containing compound response to organic cyclic compound negative regulation of intracellular signal transduction regulation of cellular response to stress regulation of intrinsic apoptotic signaling pathway in response to DNA damage regulation of intrinsic apoptotic signaling pathway intracellular signal transduction cellular response to stress regulation of intracellular signal transduction response to stress regulation of response to stress intrinsic apoptotic signaling pathway in response to DNA damage intrinsic apoptotic signaling pathway negative regulation of intrinsic apoptotic signaling pathway in response to DNA damage negative regulation of intrinsic apoptotic signaling pathway DNA damage response biological process involved in interspecies interaction between organisms response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus defense response to virus defense response to other organism response to external biotic stimulus response to virus negative regulation of extrinsic apoptotic signaling pathway in absence of ligand negative regulation of signal transduction in absence of ligand regulation of extrinsic apoptotic signaling pathway in absence of ligand protein localization cellular localization regulation of protein localization negative regulation of protein localization to plasma membrane cellular macromolecule localization regulation of protein localization to membrane negative regulation of protein localization protein localization to cell periphery protein localization to plasma membrane localization within membrane regulation of protein localization to cell periphery protein localization to membrane negative regulation of protein localization to membrane regulation of cellular localization macromolecule localization negative regulation of protein localization to cell periphery regulation of protein localization to plasma membrane cellular process involved in reproduction in multicellular organism germ cell development cellular response to ionizing radiation cellular response to radiation cellular response to environmental stimulus response to ionizing radiation cellular response to gamma radiation response to radiation response to abiotic stimulus cellular response to abiotic stimulus response to gamma radiation regulation of mitochondrial membrane potential regulation of membrane potential import into cell endocytosis vesicle-mediated transport regulation of response to endoplasmic reticulum stress negative regulation of endoplasmic reticulum stress-induced intrinsic apoptotic signaling pathway intrinsic apoptotic signaling pathway in response to endoplasmic reticulum stress regulation of endoplasmic reticulum stress-induced intrinsic apoptotic signaling pathway response to endoplasmic reticulum stress negative regulation of response to endoplasmic reticulum stress response to peptide response to cytokine neuron apoptotic process negative regulation of neuron apoptotic process regulation of neuron apoptotic process negative regulation of execution phase of apoptosis regulation of execution phase of apoptosis execution phase of apoptosis regulation of developmental process negative regulation of developmental process regulation of leukocyte apoptotic process negative regulation of dendritic cell apoptotic process negative regulation of leukocyte apoptotic process regulation of dendritic cell apoptotic process epithelial cell proliferation hepatocyte apoptotic process epithelial cell apoptotic process	membrane-bounded organelle intracellular anatomical structure nuclear membrane membrane nucleus intracellular membrane-bounded organelle endomembrane system intracellular organelle organelle envelope cellular anatomical structure organelle nuclear envelope organelle membrane cytoplasm membrane-bounded organelle intracellular anatomical structure nuclear membrane membrane nucleus intracellular membrane-bounded organelle endomembrane system intracellular organelle organelle envelope cellular anatomical structure organelle nuclear envelope organelle membrane cytoplasm cytosol mitochondrial membrane mitochondrion organelle outer membrane bounding membrane of organelle mitochondrial envelope mitochondrial outer membrane outer membrane synapse intracellular vesicle transport vesicle membrane presynapse cytoplasmic vesicle vesicle membrane synaptic vesicle synaptic vesicle membrane cell junction vesicle transport vesicle exocytic vesicle membrane cytoplasmic vesicle membrane secretory vesicle exocytic vesicle organelle inner membrane mitochondrial inner membrane centrosome microtubule organizing center cytoskeleton membraneless organelle intracellular membraneless organelle microtubule cytoskeleton protein-containing complex Bcl-2 family protein complex membrane-enclosed lumen mitochondrial matrix intracellular organelle lumen organelle lumen endoplasmic reticulum
C, D	ALPHA BETA BH3-PEPTIDE	-	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process regulation of cellular process regulation of catalytic activity positive regulation of protein metabolic process positive regulation of peptidase activity positive regulation of biological process regulation of primary metabolic process positive regulation of molecular function positive regulation of metabolic process cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process regulation of cellular process regulation of catalytic activity positive regulation of protein metabolic process positive regulation of peptidase activity positive regulation of biological process regulation of primary metabolic process positive regulation of molecular function positive regulation of metabolic process regulation of proteolysis proteolysis regulation of endopeptidase activity positive regulation of macromolecule metabolic process protein metabolic process positive regulation of cellular process regulation of cysteine-type endopeptidase activity regulation of biological process regulation of protein metabolic process regulation of peptidase activity biological regulation positive regulation of catalytic activity primary metabolic process regulation of macromolecule metabolic process regulation of molecular function positive regulation of hydrolase activity positive regulation of cysteine-type endopeptidase activity regulation of hydrolase activity positive regulation of endopeptidase activity positive regulation of proteolysis metabolic process macromolecule metabolic process regulation of metabolic process signaling cell death intracellular signal transduction cell communication apoptotic signaling pathway signal transduction apoptotic process intrinsic apoptotic signaling pathway programmed cell death lymphocyte apoptotic process leukocyte apoptotic process T cell apoptotic process positive regulation of organelle organization regulation of cellular component organization positive regulation of cellular component organization apoptotic mitochondrial changes regulation of release of cytochrome c from mitochondria cellular component organization positive regulation of release of cytochrome c from mitochondria cellular component organization or biogenesis mitochondrion organization regulation of organelle organization release of cytochrome c from mitochondria organelle organization regulation of mitochondrion organization response to decreased oxygen levels cellular response to oxygen levels cellular response to hypoxia cellular response to decreased oxygen levels cellular response to chemical stimulus response to hypoxia response to chemical response to oxygen levels response to abiotic stimulus protein-containing complex organization positive regulation of cellular component biogenesis regulation of cellular component biogenesis cellular component biogenesis positive regulation of protein-containing complex assembly regulation of protein-containing complex assembly cellular component assembly protein-containing complex assembly neuron apoptotic process positive regulation of programmed cell death regulation of apoptotic process regulation of programmed cell death positive regulation of apoptotic process positive regulation of neuron apoptotic process regulation of neuron apoptotic process response to ionizing radiation cellular response to ionizing radiation response to radiation cellular response to radiation cellular response to abiotic stimulus cellular response to environmental stimulus execution phase of apoptosis positive regulation of thymocyte apoptotic process thymocyte apoptotic process regulation of T cell apoptotic process positive regulation of leukocyte apoptotic process regulation of leukocyte apoptotic process regulation of lymphocyte apoptotic process positive regulation of lymphocyte apoptotic process positive regulation of T cell apoptotic process regulation of thymocyte apoptotic process fibroblast apoptotic process positive regulation of cell communication positive regulation of signal transduction regulation of cellular response to stress regulation of response to endoplasmic reticulum stress regulation of signal transduction intrinsic apoptotic signaling pathway in response to endoplasmic reticulum stress regulation of intrinsic apoptotic signaling pathway positive regulation of apoptotic signaling pathway positive regulation of response to stimulus regulation of endoplasmic reticulum stress-induced intrinsic apoptotic signaling pathway positive regulation of response to endoplasmic reticulum stress regulation of intracellular signal transduction regulation of response to stress response to endoplasmic reticulum stress regulation of signaling positive regulation of intracellular signal transduction regulation of response to stimulus regulation of cell communication positive regulation of intrinsic apoptotic signaling pathway positive regulation of endoplasmic reticulum stress-induced intrinsic apoptotic signaling pathway regulation of apoptotic signaling pathway positive regulation of signaling positive regulation of fibroblast apoptotic process regulation of fibroblast apoptotic process positive regulation of IRE1-mediated unfolded protein response endoplasmic reticulum unfolded protein response regulation of endoplasmic reticulum unfolded protein response positive regulation of endoplasmic reticulum unfolded protein response regulation of IRE1-mediated unfolded protein response cellular response to topologically incorrect protein cellular response to unfolded protein response to unfolded protein response to topologically incorrect protein IRE1-mediated unfolded protein response protein localization regulation of localization establishment of protein localization cellular localization regulation of protein localization positive regulation of establishment of protein localization localization cellular macromolecule localization regulation of establishment of protein localization establishment of localization regulation of establishment of protein localization to mitochondrion establishment of protein localization to organelle regulation of cellular localization macromolecule localization protein localization to organelle positive regulation of protein localization protein localization to mitochondrion establishment of protein localization to mitochondrion positive regulation of establishment of protein localization to mitochondrion multicellular organismal process determination of adult lifespan signal transduction by p53 class mediator intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator intrinsic apoptotic signaling pathway by p53 class mediator intrinsic apoptotic signaling pathway in response to DNA damage regulation of growth negative regulation of growth negative regulation of biological process growth	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle cytosol mitochondrial membrane membrane organelle outer membrane organelle envelope bounding membrane of organelle membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle cytosol mitochondrial membrane membrane organelle outer membrane organelle envelope bounding membrane of organelle mitochondrial envelope mitochondrial outer membrane outer membrane organelle membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036834	Bcl-2-like superfamily	Homologous Superfamily
A, B	IPR004725	Apoptosis regulator, Bcl-2/ BclX	Family
A, B	IPR003093	Apoptosis regulator, Bcl-2 protein, BH4	Domain
A, B	IPR002475	Bcl2-like	Family
A, B	IPR020731	Apoptosis regulator, Bcl-2, BH4 motif, conserved site	Conserved Site
A, B	IPR013279	Apoptosis regulator, Bcl-X	Family
A, B	IPR020728	Apoptosis regulator, Bcl-2, BH3 motif, conserved site	Conserved Site
A, B	IPR020726	Apoptosis regulator, Bcl-2, BH2 motif, conserved site	Conserved Site
A, B	IPR046371	Bcl-2, Bcl-2 homology region 1-3	Domain
A, B	IPR026298	Bcl-2 family	Family
A, B	IPR020717	Apoptosis regulator, Bcl-2, BH1 motif, conserved site	Conserved Site
C, D	IPR031661	Bcl-2-binding component 3	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: Q07817	plasma cell myeloma liver disease myocardial infarction Liver Neoplasms, Experimental type 2 diabetes mellitus cryptorchidism follicular thyroid adenoma microcystic adenoma erectile dysfunction head and neck cancer hearing loss disorder adenoma papillary adenoma amyotrophic lateral sclerosis type 1 sarcomatoid carcinoma plasma cell myeloma liver disease myocardial infarction Liver Neoplasms, Experimental type 2 diabetes mellitus cryptorchidism follicular thyroid adenoma microcystic adenoma erectile dysfunction head and neck cancer hearing loss disorder adenoma papillary adenoma amyotrophic lateral sclerosis type 1 sarcomatoid carcinoma carcinoma malignant ependymoma chronic obstructive pulmonary disease malignant tumor of neck medulloblastoma gastric neoplasm head and neck neoplasm hematologic disease pancreatic intraductal papillary-mucinous neoplasm intestinal disease psoriasis B-cell chronic lymphocytic leukemia cancer MALT lymphoma glioblastoma myopathy acute myeloid leukemia hepatocellular carcinoma oligodendroglioma hereditary diffuse gastric adenocarcinoma pancreatic neoplasm intracerebral hemorrhage plasma cell neoplasm sarcoidosis lung benign neoplasm lymphatic system disease undifferentiated carcinoma malignant pancreatic neoplasm maturity-onset diabetes of the young gastric cancer myeloid neoplasm neoplasm of neck ovarian cancer large cell medulloblastoma prostate disease atypical teratoid rhabdoid tumor breast disease lung disease toxic encephalopathy
C, D	Pharos: Q9BXH1	Burkitt lymphoma brain ischemia esophageal cancer Liver Neoplasms, Experimental juvenile dermatomyositis malignant glioma large cell medulloblastoma medulloblastoma breast fibroadenoma neoplasm of esophagus

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
C, D	ACE	RESID: AA0041 , AA0042 , AA0043 , AA0044 , AA0045 , AA0046 , AA0049 , AA0050 , AA0051 , AA0052 , AA0053 , AA0054 , AA0354 PSI-MOD : N-acetyl-L-alanine MOD:00050 , N-acetyl-L-aspartic acid MOD:00051 , N-acetyl-L-cysteine MOD:00052 , N-acetyl-S-archeol-cysteine MOD:00897 , N-acetyl-L-glutamic acid MOD:00053 , N-acetyl-L-glutamine MOD:00054 , N-acetylglycine MOD:00055 , N-acetyl-L-methionine MOD:00058 , N-acetyl-L-proline MOD:00059 , N-acetyl-L-serine MOD:00060 , N,O-diacetylated L-serine MOD:00648 , N-acetyl-L-threonine MOD:00061 , N-acetyl-L-tyrosine MOD:00062 , N-acetyl-L-valine MOD:00063 , N2-acetyl-L-arginine MOD:00359
C, D	AHP	Parent Component: ALA RESID: AA0041 , AA0042 , AA0043 , AA0044 , AA0045 , AA0046 , AA0049 , AA0050 , AA0051 , AA0052 , AA0053 , AA0054 , AA0354
C, D	B3A	Parent Component: ALA RESID: AA0041 , AA0042 , AA0043 , AA0044 , AA0045 , AA0046 , AA0049 , AA0050 , AA0051 , AA0052 , AA0053 , AA0054 , AA0354
C, D	B3D	Parent Component: ASP RESID: AA0041 , AA0042 , AA0043 , AA0044 , AA0045 , AA0046 , AA0049 , AA0050 , AA0051 , AA0052 , AA0053 , AA0054 , AA0354
C, D	B3E	Parent Component: GLU RESID: AA0041 , AA0042 , AA0043 , AA0044 , AA0045 , AA0046 , AA0049 , AA0050 , AA0051 , AA0052 , AA0053 , AA0054 , AA0354
C, D	B3Q	RESID: AA0041 , AA0042 , AA0043 , AA0044 , AA0045 , AA0046 , AA0049 , AA0050 , AA0051 , AA0052 , AA0053 , AA0054 , AA0354
C, D	HR7	Parent Component: ARG RESID: AA0041 , AA0042 , AA0043 , AA0044 , AA0045 , AA0046 , AA0049 , AA0050 , AA0051 , AA0052 , AA0053 , AA0054 , AA0354
C, D	HT7	Parent Component: TRP RESID: AA0041 , AA0042 , AA0043 , AA0044 , AA0045 , AA0046 , AA0049 , AA0050 , AA0051 , AA0052 , AA0053 , AA0054 , AA0354
C, D	NH2	RESID: AA0041 , AA0042 , AA0043 , AA0044 , AA0045 , AA0046 , AA0049 , AA0050 , AA0051 , AA0052 , AA0053 , AA0054 , AA0354 , AA0081 , AA0083 , AA0084 , AA0086 , AA0087 , AA0088 , AA0090 , AA0091 , AA0092 , AA0093 , AA0095 , AA0096 , AA0097 , AA0098 , AA0099 , AA0100 PSI-MOD : N-acetyl-L-alanine MOD:00050 , N-acetyl-L-aspartic acid MOD:00051 , N-acetyl-L-cysteine MOD:00052 , N-acetyl-S-archeol-cysteine MOD:00897 , N-acetyl-L-glutamic acid MOD:00053 , N-acetyl-L-glutamine MOD:00054 , N-acetylglycine MOD:00055 , N-acetyl-L-methionine MOD:00058 , N-acetyl-L-proline MOD:00059 , N-acetyl-L-serine MOD:00060 , N,O-diacetylated L-serine MOD:00648 , N-acetyl-L-threonine MOD:00061 , N-acetyl-L-tyrosine MOD:00062 , N-acetyl-L-valine MOD:00063 , N2-acetyl-L-arginine MOD:00359 , L-alanine amide MOD:00090 , L-asparagine amide MOD:00092 , L-aspartic acid 1-amide MOD:00093 , L-glutamine amide MOD:00095 , L-glutamic acid 1-amide MOD:00096 , glycine amide MOD:00097 , L-isoleucine amide MOD:00099 , L-leucine amide MOD:00100 , L-lysine amide MOD:00101 , L-methionine amide MOD:00102 , L-proline amide MOD:00104 , L-serine amide MOD:00105 , L-threonine amide MOD:00106 , L-tryptophan amide MOD:00107 , L-tyrosine amide MOD:00108 , L-valine amide MOD:00109

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.