ID:COPB2_HUMAN DESCRIPTION: RecName: Full=Coatomer subunit beta'; AltName: Full=Beta'-coat protein; Short=Beta'-COP; AltName: Full=p102; FUNCTION: The coatomer is a cytosolic protein complex that binds to dilysine motifs and reversibly associates with Golgi non- clathrin-coated vesicles, which further mediate biosynthetic protein transport from the ER, via the Golgi up to the trans Golgi network. Coatomer complex is required for budding from Golgi membranes, and is essential for the retrograde Golgi-to-ER transport of dilysine-tagged proteins. In mammals, the coatomer can only be recruited by membranes associated to ADP-ribosylation factors (ARFs), which are small GTP-binding proteins; the complex also influences the Golgi structural integrity, as well as the processing, activity, and endocytic recycling of LDL receptors (By similarity). FUNCTION: This coatomer complex protein, essential for Golgi budding and vesicular trafficking, is a selective binding protein (RACK) for protein kinase C, epsilon type. It binds to Golgi membranes in a GTP-dependent manner (By similarity). SUBUNIT: Oligomeric complex that consists of at least the alpha, beta, beta', gamma, delta, epsilon and zeta subunits. Probably interacts with PEX11A. Interacts with SCYL1 (By similarity). SUBCELLULAR LOCATION: Cytoplasm (By similarity). Golgi apparatus membrane; Peripheral membrane protein; Cytoplasmic side (By similarity). Cytoplasmic vesicle, COPI-coated vesicle membrane; Peripheral membrane protein; Cytoplasmic side (By similarity). Note=The coatomer is cytoplasmic or polymerized on the cytoplasmic side of the Golgi, as well as on the vesicles/buds originating from it (By similarity). SIMILARITY: Belongs to the WD repeat COPB2 family. SIMILARITY: Contains 9 WD repeats.
The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.
ModBase Predicted Comparative 3D Structure on P35606
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Orthologous Genes in Other Species
Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.
Gene Ontology (GO) Annotations with Structured Vocabulary
Molecular Function: GO:0005198 structural molecule activity GO:0005515 protein binding
Biological Process: GO:0006886 intracellular protein transport GO:0006888 ER to Golgi vesicle-mediated transport GO:0006890 retrograde vesicle-mediated transport, Golgi to ER GO:0006891 intra-Golgi vesicle-mediated transport GO:0015031 protein transport GO:0016192 vesicle-mediated transport GO:1901998 toxin transport
X70476 - H.sapiens subunit of coatomer complex. BC000326 - Homo sapiens coatomer protein complex, subunit beta 2 (beta prime), mRNA (cDNA clone MGC:8486 IMAGE:2821998), complete cds. LP895471 - Sequence 335 from Patent EP3253886. AK302943 - Homo sapiens cDNA FLJ56271 complete cds, highly similar to Coatomer subunit beta. JD535326 - Sequence 516350 from Patent EP1572962. JD424993 - Sequence 406017 from Patent EP1572962. JD381680 - Sequence 362704 from Patent EP1572962. JD470339 - Sequence 451363 from Patent EP1572962. JF432305 - Synthetic construct Homo sapiens clone IMAGE:100073487 coatomer protein complex, subunit beta 2 (beta prime) (COPB2) gene, encodes complete protein. AK304219 - Homo sapiens cDNA FLJ61545 complete cds, highly similar to Coatomer subunit beta. CU674160 - Synthetic construct Homo sapiens gateway clone IMAGE:100020521 5' read COPB2 mRNA. AK128561 - Homo sapiens cDNA FLJ46720 fis, clone TRACH3018519, weakly similar to Coatomer beta' subunit.
Biochemical and Signaling Pathways
Reactome (by CSHL, EBI, and GO)
Protein P35606 (Reactome details) participates in the following event(s):
R-HSA-6807872 Active ARF recruits coatomer R-HSA-6811412 Active ARF recruits coatomer to the Golgi R-HSA-6807875 ARFGAP, cargo, v-SNAREs and p24 proteins bind nascent COPI complex R-HSA-6811417 ARFGAP, cargo, vSNARES and p24 proteins bind COPI vesicles at Golgi R-HSA-6811426 Retrograde COPI vesicles bind kinesin and microtubules R-HSA-6811418 ARFGAPs stimulate ARF GTPase activity at the Golgi membrane R-HSA-6811423 Retrograde vesicle is tethered at the ER by the NRZ complex and t-SNAREs R-HSA-6807877 ARFGAPs stimulate ARF GTPase activity R-HSA-6809003 ERGIC-to-Golgi vesicles bind dynein:dynactin R-HSA-6809011 cis-Golgi t-SNAREs bind YKT6 on tethered vesicle R-HSA-6809006 Vesicle is tethered through binding GOLGA2:GORASP1, GOLGB1 and the COG complex R-HSA-6807878 COPI-mediated anterograde transport R-HSA-6811434 COPI-dependent Golgi-to-ER retrograde traffic R-HSA-199977 ER to Golgi Anterograde Transport R-HSA-8856688 Golgi-to-ER retrograde transport R-HSA-199991 Membrane Trafficking R-HSA-948021 Transport to the Golgi and subsequent modification R-HSA-6811442 Intra-Golgi and retrograde Golgi-to-ER traffic R-HSA-5653656 Vesicle-mediated transport R-HSA-446203 Asparagine N-linked glycosylation R-HSA-597592 Post-translational protein modification R-HSA-392499 Metabolism of proteins