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    MSB3 Rab GTPase-activating protein MSB3 [ Saccharomyces cerevisiae S288C ]

    Gene ID: 855423, updated on 7-Jul-2024

    Summary

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    Gene symbol
    MSB3
    Gene description
    Rab GTPase-activating protein MSB3
    Primary source
    FungiDB:YNL293W
    Locus tag
    YNL293W
    See related
    SGD:S000005237; AllianceGenome:SGD:S000005237; VEuPathDB:YNL293W
    Gene type
    protein coding
    RefSeq status
    REVIEWED
    Organism
    Saccharomyces cerevisiae S288C (strain: S288C)
    Lineage
    Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes; Saccharomycetales; Saccharomycetaceae; Saccharomyces
    Also known as
    GYP3
    Summary
    Enables GTPase activator activity. Involved in several processes, including activation of GTPase activity; exocytosis; and formin-nucleated actin cable assembly. Located in several cellular components, including cellular bud tip; fungal-type vacuole membrane; and late endosome. Part of incipient cellular bud site and polarisome. Used to study Ewing sarcoma and cancer. Orthologous to several human genes including GRTP1 (growth hormone regulated TBC protein 1). [provided by Alliance of Genome Resources, Apr 2022]
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    Genomic context

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    See MSB3 in Genome Data Viewer
    Location:
    chromosome: XIV
    Exon count:
    1
    Sequence:
    Chromosome: XIV; NC_001146.8 (80640..82541)

    Chromosome XIV - NC_001146.8Genomic Context describing neighboring genes Neighboring gene Mrx6p Neighboring gene Rim21p Neighboring gene pseudouridine synthase PUS4 Neighboring gene Mid1p

    Genomic regions, transcripts, and products

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    Genomic Sequence:
    NC_001146.8

    Go to nucleotide: Graphics FASTA GenBank

    Bibliography

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    Related articles in PubMed

    1. Co-deletion of the MSB3 and MSB4 coding regions affects bipolar budding and perturbs the organization of the actin cytoskeleton. Bach S, et al. Yeast, 2000 Aug. PMID 10923023
    2. At least two regions of the oncoprotein Tre2 are involved in its lack of GAP activity. Bizimungu C, et al. Biochem Biophys Res Commun, 2005 Sep 30. PMID 16099424
    3. Myosin-V is activated by binding secretory cargo and released in coordination with Rab/exocyst function. Donovan KW, et al. Dev Cell, 2012 Oct 16. PMID 23079598, Free PMC Article
    4. Expression in a RabGAP yeast mutant of two human homologues, one of which is an oncogene. Bizimungu C, et al. Biochem Biophys Res Commun, 2003 Oct 17. PMID 14521938
    5. Disruption and functional analysis of six ORFs on chromosome XV: YOL117w, YOL115w ( TRF4), YOL114c, YOL112w ( MSB4), YOL111c and YOL072w. Iwanejko L, et al. Yeast, 1999 Oct. PMID 10514570

    See all (55) citations in PubMed

    GeneRIFs: Gene References Into Functions

    What's a GeneRIF?
    1. BLOC-1 is both a Vps21 effector and an adapter for its GAP Msb3.
      Title: The BLOC-1 complex promotes endosomal maturation by recruiting the Rab5 GTPase-activating protein Msb3.
    2. Gyp3 spatially restricts active Vps21 to intermediate endosomes.
      Title: Termination of isoform-selective Vps21/Rab5 signaling at endolysosomal organelles by Msb3/Gyp3.
    3. Msb3 can act on multiple substrates in vivo at both ends of a trafficking pathway
      Title: The Msb3/Gyp3 GAP controls the activity of the Rab GTPases Vps21 and Ypt7 at endosomes and vacuoles.
    4. The results suggest a possible involvement of Msb3p in calcineurin-mediated signalling.
      Title: Multicopy suppression screen in a Saccharomyces cerevisiae strain lacking the Rab GTPase-activating protein Msb3p.
    5. Msb3 and Msb4 interact with Cdc42 and polarisome components to regulate cell polarity
      Title: Regulation of cell polarity by interactions of Msb3 and Msb4 with Cdc42 and polarisome components.
    Submit: New GeneRIF Correction

    Interactions

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    Products Interactant Other Gene Complex Source Pubs Description

    General gene information

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    Homology

    Gene Ontology Provided by SGD

    Function Evidence Code Pubs
    enables GTPase activator activity IBA
    Inferred from Biological aspect of Ancestor
    more info
    		  
    enables GTPase activator activity IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    enables GTPase activator activity IEA
    Inferred from Electronic Annotation
    more info
    		  
    enables GTPase activator activity IMP
    Inferred from Mutant Phenotype
    more info
    		 PubMed 
    Process Evidence Code Pubs
    involved_in activation of GTPase activity IBA
    Inferred from Biological aspect of Ancestor
    more info
    		  
    involved_in endocytosis IMP
    Inferred from Mutant Phenotype
    more info
    		 PubMed 
    involved_in endocytosis IPI
    Inferred from Physical Interaction
    more info
    		 PubMed 
    involved_in exocytosis IGI
    Inferred from Genetic Interaction
    more info
    		 PubMed 
    involved_in formin-nucleated actin cable assembly IGI
    Inferred from Genetic Interaction
    more info
    		 PubMed 
    involved_in formin-nucleated actin cable assembly IPI
    Inferred from Physical Interaction
    more info
    		 PubMed 
    involved_in regulation of protein localization IMP
    Inferred from Mutant Phenotype
    more info
    		 PubMed 
    involved_in regulation of protein localization IPI
    Inferred from Physical Interaction
    more info
    		 PubMed 
    Component Evidence Code Pubs
    located_in cell periphery HDA PubMed 
    located_in cellular bud IEA
    Inferred from Electronic Annotation
    more info
    		  
    located_in cellular bud neck HDA PubMed 
    located_in cellular bud neck IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    located_in cellular bud neck IEA
    Inferred from Electronic Annotation
    more info
    		  
    located_in cellular bud tip HDA PubMed 
    located_in cellular bud tip IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    located_in cytoplasm HDA PubMed 
    located_in cytoplasm IEA
    Inferred from Electronic Annotation
    more info
    		  
    located_in cytosol IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    located_in fungal-type vacuole membrane IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    located_in incipient cellular bud site IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    located_in late endosome IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    located_in mating projection tip IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    located_in plasma membrane IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    part_of polarisome IDA
    Inferred from Direct Assay
    more info
    		 PubMed 

    General protein information

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    Preferred Names
    Rab GTPase-activating protein MSB3
    NP_014106.1
    • Rab GTPase-activating protein; regulates endocytosis via inactivation of Vps21p at endosomes and vacuole fusion via inactivation of Ypt7p at vacuoles; also acts on Ypt52p and Sec4p; localizes to plasma membrane, sites of polarized growth; relocalizes from bud neck to cytoplasm upon DNA replication stress; similar to TBC-domain Tre2 oncogene; MSB3 has a paralog, MSB4, that arose from the whole genome duplication; human homolog USP6NL can complement yeast msb3 msb4 double null

    NCBI Reference Sequences (RefSeq)

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    Genome Annotation

    The following sections contain reference sequences that belong to a specific genome build. Explain

    Reference assembly

    Genomic

    1. NC_001146.8 Reference assembly

      Range
      80640..82541
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    mRNA and Protein(s)

    1. NM_001183131.1 → NP_014106.1  TPA: Rab GTPase-activating protein MSB3 [Saccharomyces cerevisiae S288C]

      See identical proteins and their annotated locations for NP_014106.1

      Status: REVIEWED

      UniProtKB/Swiss-Prot
      D6W0Q0, P48566
      UniProtKB/TrEMBL
      A0A8H4BVQ1, A6ZSI5, B3LPD1, B5VQC4, C7GS56, G2WLH4, N1P4V7
      Conserved Domains (1) summary
      COG5210
      Location:15 → 540
      COG5210; GTPase-activating protein [General function prediction only]
    Nucleotide Protein
    Heading Accession and Version
    Protein Accession Links
    GenPept Link UniProtKB Link
    P48566.1

    Gene LinkOut

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