T cell homeostatic proliferation / release of matrix enzymes from mitochondria / positive regulation of developmental pigmentation / protein insertion into mitochondrial membrane / BAX complex / B cell receptor apoptotic signaling pathway / positive regulation of reproductive process / positive regulation of motor neuron apoptotic process / regulation of mammary gland epithelial cell proliferation / spermatid differentiation ...T cell homeostatic proliferation / release of matrix enzymes from mitochondria / positive regulation of developmental pigmentation / protein insertion into mitochondrial membrane / BAX complex / B cell receptor apoptotic signaling pathway / positive regulation of reproductive process / positive regulation of motor neuron apoptotic process / regulation of mammary gland epithelial cell proliferation / spermatid differentiation / Activation, translocation and oligomerization of BAX / positive regulation of B cell apoptotic process / development of secondary sexual characteristics / NTRK3 as a dependence receptor / Sertoli cell proliferation / positive regulation of apoptotic DNA fragmentation / B cell homeostatic proliferation / glycosphingolipid metabolic process / positive regulation of mitochondrial membrane permeability involved in apoptotic process / retinal cell programmed cell death / B cell negative selection / BAK complex / activation of cysteine-type endopeptidase activity involved in apoptotic process by cytochrome c / apoptotic process involved in blood vessel morphogenesis / regulation of mitochondrial membrane permeability involved in programmed necrotic cell death / mitochondrial fragmentation involved in apoptotic process / negative regulation of endoplasmic reticulum calcium ion concentration / apoptotic process involved in embryonic digit morphogenesis / mitochondrial permeability transition pore complex / Release of apoptotic factors from the mitochondria / post-embryonic camera-type eye morphogenesis / establishment or maintenance of transmembrane electrochemical gradient / apoptotic process involved in mammary gland involution / Transcriptional regulation by RUNX2 / positive regulation of apoptotic process involved in mammary gland involution / regulation of nitrogen utilization / B cell apoptotic process / endoplasmic reticulum calcium ion homeostasis / positive regulation of endoplasmic reticulum unfolded protein response / fertilization / positive regulation of epithelial cell apoptotic process / calcium ion transport into cytosol / channel activity / motor neuron apoptotic process / mitochondrial fusion / Bcl-2 family protein complex / epithelial cell apoptotic process / myeloid cell homeostasis / positive regulation of calcium ion transport into cytosol / hypothalamus development / pore complex / thymocyte apoptotic process / negative regulation of peptidyl-serine phosphorylation / BH3 domain binding / germ cell development / odontogenesis of dentin-containing tooth / apoptotic mitochondrial changes / positive regulation of IRE1-mediated unfolded protein response / positive regulation of release of cytochrome c from mitochondria / TP53 Regulates Transcription of Genes Involved in Cytochrome C Release / vagina development / negative regulation of mitochondrial membrane potential / B cell homeostasis / negative regulation of apoptotic signaling pathway / host cell mitochondrion / intrinsic apoptotic signaling pathway by p53 class mediator / extrinsic apoptotic signaling pathway via death domain receptors / host cell membrane / intrinsic apoptotic signaling pathway in response to endoplasmic reticulum stress / response to axon injury / cellular response to unfolded protein / ectopic germ cell programmed cell death / blood vessel remodeling / Pyroptosis / supramolecular fiber organization / extrinsic apoptotic signaling pathway / positive regulation of intrinsic apoptotic signaling pathway / negative regulation of fibroblast proliferation / release of sequestered calcium ion into cytosol / ovarian follicle development / homeostasis of number of cells within a tissue / extrinsic apoptotic signaling pathway in absence of ligand / response to salt stress / Hsp70 protein binding / intrinsic apoptotic signaling pathway / TP53 Regulates Transcription of Genes Involved in G2 Cell Cycle Arrest / positive regulation of release of sequestered calcium ion into cytosol / release of cytochrome c from mitochondria / regulation of mitochondrial membrane potential / negative regulation of protein binding / kidney development / response to gamma radiation / apoptotic signaling pathway / neuron migration / positive regulation of protein-containing complex assembly / response to toxic substance / cellular response to virus / cerebral cortex development / activation of cysteine-type endopeptidase activity involved in apoptotic process / intrinsic apoptotic signaling pathway in response to DNA damage Similarity search - Function
Poxvirus F1/C10 / Apoptosis regulator M11L like / Blc2-like / Apoptosis Regulator Bcl-x / Apoptosis regulator, Bcl-2, BH3 motif, conserved site / Apoptosis regulator, Bcl-2 family BH3 motif signature. / Apoptosis regulator, Bcl-2, BH1 motif, conserved site / Apoptosis regulator, Bcl-2 family BH1 motif signature. / Apoptosis regulator, Bcl-2, BH2 motif, conserved site / Apoptosis regulator, Bcl-2 family BH2 motif signature. ...Poxvirus F1/C10 / Apoptosis regulator M11L like / Blc2-like / Apoptosis Regulator Bcl-x / Apoptosis regulator, Bcl-2, BH3 motif, conserved site / Apoptosis regulator, Bcl-2 family BH3 motif signature. / Apoptosis regulator, Bcl-2, BH1 motif, conserved site / Apoptosis regulator, Bcl-2 family BH1 motif signature. / Apoptosis regulator, Bcl-2, BH2 motif, conserved site / Apoptosis regulator, Bcl-2 family BH2 motif signature. / BCL (B-Cell lymphoma); contains BH1, BH2 regions / Bcl-2 family / Bcl-2, Bcl-2 homology region 1-3 / Bcl2-like / Apoptosis regulator proteins, Bcl-2 family / BCL2-like apoptosis inhibitors family profile. / Bcl-2-like superfamily / Orthogonal Bundle / Mainly Alpha Similarity search - Domain/homology
Journal: Acta Crystallogr D Biol Crystallogr / Year: 2015 Title: Structural basis of Deerpox virus-mediated inhibition of apoptosis. Authors: Denis R Burton / Sofia Caria / Bevan Marshall / Michele Barry / Marc Kvansakul / Abstract: Apoptosis is a key innate defence mechanism to eliminate virally infected cells. To counteract premature host-cell apoptosis, poxviruses have evolved numerous molecular strategies, including the use ...Apoptosis is a key innate defence mechanism to eliminate virally infected cells. To counteract premature host-cell apoptosis, poxviruses have evolved numerous molecular strategies, including the use of Bcl-2 proteins, to ensure their own survival. Here, it is reported that the Deerpox virus inhibitor of apoptosis, DPV022, only engages a highly restricted set of death-inducing Bcl-2 proteins, including Bim, Bax and Bak, with modest affinities. Structural analysis reveals that DPV022 adopts a Bcl-2 fold with a dimeric domain-swapped topology and binds pro-death Bcl-2 proteins via two conserved ligand-binding grooves found on opposite sides of the dimer. Structures of DPV022 bound to Bim, Bak and Bax BH3 domains reveal that a partial obstruction of the binding groove is likely to be responsible for the modest affinities of DPV022 for BH3 domains. These findings reveal that domain-swapped dimeric Bcl-2 folds are not unusual and may be found more widely in viruses. Furthermore, the modest affinities of DPV022 for pro-death Bcl-2 proteins suggest that two distinct classes of anti-apoptotic viral Bcl-2 proteins exist: those that are monomeric and tightly bind a range of death-inducing Bcl-2 proteins, and others such as DPV022 that are dimeric and only bind a very limited number of death-inducing Bcl-2 proteins with modest affinities.
ApoptosisregulatorBAX / Bcl-2-like protein 4 / Bcl2-L-4
Mass: 3152.553 Da / Num. of mol.: 1 / Fragment: BH3, UNP RESIDUES 50-77 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) / References: UniProt: Q07812
Sequence details
STRUCTURE FROM CONSTRUCT RESIDUES 1-155
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Experimental details
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Experiment
Experiment
Method: X-RAY DIFFRACTION / Number of used crystals: 1
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Sample preparation
Crystal
Density Matthews: 1.99 Å3/Da / Density % sol: 81.6 % Description: RESIDUES FROM 1 AND 2 AND FROM 138 TO 155 ARE DISORDERED IN DPV022 AND IN BAX BH3 THE RESIDUES FROM 51 TO 56 AND 76 TO 78 ARE MISSING.
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