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Protein

Apoptosis regulator Bcl-2

Gene

BCL2

Organism
Canis lupus familiaris (Dog) (Canis familiaris)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at transcript leveli

Functioni

Suppresses apoptosis in a variety of cell systems including factor-dependent lymphohematopoietic and neural cells. Regulates cell death by controlling the mitochondrial membrane permeability. Appears to function in a feedback loop system with caspases. Inhibits caspase activity either by preventing the release of cytochrome c from the mitochondria and/or by binding to the apoptosis-activating factor (APAF-1) (By similarity). May attenuate inflammation by impairing NLRP1-inflammasome activation, hence CASP1 activation and IL1B release (By similarity).By similarity

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Biological processi

Apoptosis

Names & Taxonomyi

Protein namesi
Recommended name:
Apoptosis regulator Bcl-2
Gene namesi
Name:BCL2
OrganismiCanis lupus familiaris (Dog) (Canis familiaris)
Taxonomic identifieri9615 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCarnivoraCaniformiaCanidaeCanis
Proteomesi
  • UP000002254 Componenti: Unplaced

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transmembranei209 – 230HelicalSequence analysisAdd BLAST22

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Endoplasmic reticulum, Membrane, Mitochondrion, Mitochondrion outer membrane, Nucleus

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00002896011 – 236Apoptosis regulator Bcl-2Add BLAST236

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei69Phosphothreonine; by MAPK8By similarity1
Modified residuei70Phosphoserine; by MAPK8 and PKCBy similarity1
Modified residuei84Phosphoserine; by MAPK8By similarity1

Post-translational modificationi

Phosphorylation/dephosphorylation on Ser-70 regulates anti-apoptotic activity. Growth factor-stimulated phosphorylation on Ser-70 by PKC is required for the anti-apoptosis activity and occurs during the G2/M phase of the cell cycle (By similarity). In the absence of growth factors, BCL2 appears to be phosphorylated by other protein kinases such as ERKs and stress-activated kinases (By similarity). Phosphorylated by MAPK8/JNK1 at Thr-69, Ser-70 and Ser-84, wich stimulates starvation-induced autophagy (By similarity). Dephosphorylated by protein phosphatase 2A (PP2A) (By similarity).By similarity
Proteolytically cleaved by caspases during apoptosis. The cleaved protein, lacking the BH4 motif, has pro-apoptotic activity, causes the release of cytochrome c into the cytosol promoting further caspase activity (By similarity).By similarity
Monoubiquitinated by PARK2, leading to increase its stability. Ubiquitinated by SCF(FBXO10), leading to its degradation by the proteasome.By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sitei64 – 65Cleavage; by caspase-3 and caspase-92

Keywords - PTMi

Phosphoprotein, Ubl conjugation

Interactioni

Subunit structurei

Forms homodimers, and heterodimers with BAX, BAD, BAK and Bcl-X(L). Heterodimerization with BAX requires intact BH1 and BH2 motifs, and is necessary for anti-apoptotic activity (By similarity). Also interacts with APAF1, BBC3, BCL2L1, BNIPL, EI24, MRPL41 and TP53BP2. Binding to FKBP8 seems to target BCL2 to the mitochondria and probably interferes with the binding of BCL2 to its targets. Interacts with BAG1 in an ATP-dependent manner. Interacts with RAF1 (the 'Ser-338' and 'Ser-339' phosphorylated form). Interacts (via the BH4 domain) with EGLN3; the interaction prevents the formation of the BAX-BCL2 complex and inhibits the anti-apoptotic activity of BCL2 (By similarity). Interacts with G0S2; this interaction also prevents the formation of the anti-apoptotic BAX-BCL2 complex (By similarity). Interacts with BOP (By similarity). Interacts with the SCF(FBXO10) complex (By similarity). Interacts (via the loop between motifs BH4 and BH3) with NLRP1 (via LRR repeats) (By similarity).By similarity

GO - Molecular functioni

Structurei

3D structure databases

ProteinModelPortaliQ6R755.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Motifi10 – 30BH4Add BLAST21
Motifi90 – 104BH3Add BLAST15
Motifi133 – 152BH1Add BLAST20
Motifi184 – 199BH2Add BLAST16

Domaini

The BH4 motif is required for anti-apoptotic activity and for interaction with RAF1 and EGLN3.By similarity
BH1 and BH2 domains are required for the interaction with BAX and for anti-apoptotic activity.By similarity
The loop between motifs BH4 and BH3 is required for the interaction with NLRP1.By similarity

Sequence similaritiesi

Belongs to the Bcl-2 family.Curated

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

HOVERGENiHBG004472.
InParanoidiQ6R755.

Family and domain databases

InterProiIPR013278. Apop_reg_Bcl2.
IPR002475. Bcl2-like.
IPR004725. Bcl2/BclX.
IPR020717. Bcl2_BH1_motif_CS.
IPR020726. Bcl2_BH2_motif_CS.
IPR020728. Bcl2_BH3_motif_CS.
IPR003093. Bcl2_BH4.
IPR020731. Bcl2_BH4_motif_CS.
IPR026298. Blc2_fam.
[Graphical view]
PANTHERiPTHR11256. PTHR11256. 1 hit.
PTHR11256:SF11. PTHR11256:SF11. 1 hit.
PfamiPF00452. Bcl-2. 1 hit.
PF02180. BH4. 1 hit.
[Graphical view]
PRINTSiPR01863. APOPREGBCL2.
PR01862. BCL2FAMILY.
SMARTiSM00265. BH4. 1 hit.
[Graphical view]
TIGRFAMsiTIGR00865. bcl-2. 1 hit.
PROSITEiPS50062. BCL2_FAMILY. 1 hit.
PS01080. BH1. 1 hit.
PS01258. BH2. 1 hit.
PS01259. BH3. 1 hit.
PS01260. BH4_1. 1 hit.
PS50063. BH4_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q6R755-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAQAGRTGYD NREIVMKYIH YKLSQRGYEW DVGDVDAAPL GAAPTPGIFS
60 70 80 90 100
FQPESNPTPA VHRDMAARTS PLRPIVATTG PTLSPVPPVV HLTLRRAGDD
110 120 130 140 150
FSRRYRRDFA EMSSQLHLTP FTARGRFATV VEELFRDGVN WGRIVAFFEF
160 170 180 190 200
GGVMCVESVN REMSPLVDNI ALWMTEYLNR HLHTWIQDNG GWDAFVELYG
210 220 230
PTMQPLFDFS WLSLKALLSL ALVGACITLG AYLGHK
Length:236
Mass (Da):26,449
Last modified:July 5, 2004 - v1
Checksum:iBC22E0CEFD3EB228
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AY509563 mRNA. Translation: AAR92491.1.
UniGeneiCfa.110.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AY509563 mRNA. Translation: AAR92491.1.
UniGeneiCfa.110.

3D structure databases

ProteinModelPortaliQ6R755.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Phylogenomic databases

HOVERGENiHBG004472.
InParanoidiQ6R755.

Family and domain databases

InterProiIPR013278. Apop_reg_Bcl2.
IPR002475. Bcl2-like.
IPR004725. Bcl2/BclX.
IPR020717. Bcl2_BH1_motif_CS.
IPR020726. Bcl2_BH2_motif_CS.
IPR020728. Bcl2_BH3_motif_CS.
IPR003093. Bcl2_BH4.
IPR020731. Bcl2_BH4_motif_CS.
IPR026298. Blc2_fam.
[Graphical view]
PANTHERiPTHR11256. PTHR11256. 1 hit.
PTHR11256:SF11. PTHR11256:SF11. 1 hit.
PfamiPF00452. Bcl-2. 1 hit.
PF02180. BH4. 1 hit.
[Graphical view]
PRINTSiPR01863. APOPREGBCL2.
PR01862. BCL2FAMILY.
SMARTiSM00265. BH4. 1 hit.
[Graphical view]
TIGRFAMsiTIGR00865. bcl-2. 1 hit.
PROSITEiPS50062. BCL2_FAMILY. 1 hit.
PS01080. BH1. 1 hit.
PS01258. BH2. 1 hit.
PS01259. BH3. 1 hit.
PS01260. BH4_1. 1 hit.
PS50063. BH4_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiBCL2_CANLF
AccessioniPrimary (citable) accession number: Q6R755
Entry historyi
Integrated into UniProtKB/Swiss-Prot: May 29, 2007
Last sequence update: July 5, 2004
Last modified: October 5, 2016
This is version 63 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.