A Database of Drosophila Genes & Genomes

FB2012_01, released January 20th, 2012
 

Gene Dmel\BubR1

General Information
SymbolDmel\BubR1SpeciesD. melanogaster
NameBub1-related kinaseAnnotation symbolCG7838
Feature typeprotein_coding_geneFlyBase IDFBgn0263855
Gene Model StatusCurrent Stock availability 15 publicly available
Also Known Asbub1, Dmbub1
Genomic Location
Chromosome (arm)2RRecombination map2-
Cytogenetic map42A5-42A6Sequence location2R:1,856,600..1,862,122 [-]

Genomic Maps

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Automatically generated summary

See sections below for more information
The gene Bub1-related kinase is referred to in FlyBase by the symbol Dmel\BubR1 (CG7838, FBgn0263855). It is a protein_coding_gene from Drosophila melanogaster. Based on sequence similarity, it is predicted to have molecular function: protein serine/threonine kinase activity. There is experimental evidence for 16 unique biological process terms, many of which group under: cell cycle; cellular component organization or biogenesis; biological regulation; cell cycle process; regulation of cellular component organization; M phase of meiotic cell cycle; regulation of cell cycle arrest; regulation of organelle organization; system development; multicellular organismal development. 19 alleles are reported. The phenotypes of these alleles are annotated with: organelle; anatomical structure; multicellular structure; spindle; cell cycle; spindle microtubule; intracellular non-membrane-bounded organelle; intracellular organelle part; eo support cell; cellular component organization or biogenesis; nucleus; imaginal precursor; organ system. It has one annotated transcript and one annotated polypeptide. Protein features are: Mad3/BUB1 homology region 1; Mitotic checkpoint serine/threonine protein kinase, Bub1; Protein kinase, ATP binding site; Protein kinase, catalytic domain; Protein kinase-like domain; Serine/threonine-protein kinase, active site; Serine/threonine-protein kinase-like domain. Gene sequence location is 2R:1856600..1862122.

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Description
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FB2011_10
FB2012_01
New/Merged/Split Record
This record was either newly added to FlyBase for this release or is the result of merging or splitting existing records in this release
All updates Click here to see a list of all updates to this record from FB2010_08 and on.
hide Detailed Mapping Data
FlyBase Computed Cytological Location
Cytogenetic map
Evidence for location
42A5-42A6  
Limits computationally determined from genome sequence between P{PZ}l(2)0985109851&P{lacW}Src42Ak10108 and P{lacW}l(2)k09848k09848&P{EP}EP407  
Experimentally Determined Cytological Location
Cytogenetic map
Notes
References
42A1-42A2  
(determined by in situ hybridisation)  
42A1-42A3  
(determined by in situ hybridisation)  
Experimentally Determined Recombination Data
Location
Left of (cM)
Right of (cM)
Notes
hide Gene Model & Products
Please see the GBrowse view of Dmel\BubR1 for information on other features
To submit a correction to a gene model please use the Contact FlyBase form
detailed view FBtr0086032 FBtr0100576 FBtr0086030 FBtr0086031 FBpp0085368 FBpp0100031 FBpp0085367 FBti0066182 FBti0047462 FBti0067813 FBti0050388 FBti0050578 FBti0132633 FBti0006868_2 FBti0006869 FBti0043148 FBti0006868_1 FBti0036043
Comments on Gene Model
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Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Associated CDS (aa)
FBtr0086032
  4862
  1460
Additional Transcript Data & Comments
Reported size (kB)
4.601 (longest cDNA)
Comments
External Data
Crossreferences
hide Polypeptide Data
Annotated Polypeptides
Name
FlyBase ID
Predicted MW (kDa)
Length (aa)
Theoretical pI
RefSeq ID
GenBank protein
FBpp0085368  
165.1  
1460  
6.27  
Additional Polypeptide Data & Comments
Reported size (kDa)
1461 (aa); 165 (kD observed); 165 (kD predicted)
Comments
External Data
Linkouts
Crossreferences
InterPro domains - A database of protein families, domains, and functional sites
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DDBJ /
EMBL /
GenBank
DNA sequence
Protein sequence
Name
 
UniProtKB/Swiss-Prot
UniProtKB/TrEMBL
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Mapped Features have been reorganized, please see this article for details.
Additional mapped features and mutations can be found on GBrowse or related reports.
Type
Symbol & Location
Additional Notes
References
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Crossreferences
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hideTranscript Expression
Additional Descriptive Data
Marker for
Subcellular Localization
CV Term
Notes
hidePolypeptide Expression
Additional Descriptive Data
Bub1 protein is detected at the kinetochore in chromosomes from colchicine treated S2 cells and larval neuroblasts. Bub1 protein shows cell-cycle dependent localization. Diffuse nucleoplasmic staining is detected at interphase. Strong kinetochore localization is found in prophase. This staining is weaker at prometaphase. At metaphase, no Bub1 protein is detected at chromosomes at the metaphase plate. Weak kintetochore staining may be seen in early anaphase, but not in late anaphase or telophase. Localization of Bub1 protein shows a similar dynamic distribution pattern in the first and second meiotic divisions during spermatogenesis.
Marker for
Subcellular Localization
CV Term
kinetochore
Notes
hide High-Throughput Expression Data
or
Untitled Document detailed view BubR1-RA mle-RC mle-RB mle-RA
See Gelbart and Emmert, 2010.10.13 for analysis details and data files for all genes.
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modENCODE Temporal Expression Data (Graveley et al., 2011)
FlyAtlas Anatomical Expression Data (Chintapalli et al., 2007)
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A cluster of genes with similar mRNA expression dynamics across development.
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Linkouts
hide Alleles & Phenotypes
hide Summary of Allele Phenotypes
Lethality
Allele
Sterility
Allele
Other Phenotypes
Allele
Phenotype manifest in
Allele
mitosis & nuclear chromosome
mitotic anaphase & nuclear chromosome
onion stage spermatid & nucleus
hide Classical Alleles ( 8 )
For All Classical Alleles Show

Allele of BubR1ClassMutagenStocksKnown lesion
BubR1k03113hypomorphic allele - genetic evidence2 Yes
BubR1c003941 --
BubR1k06109hypomorphic allele - genetic evidence1 Yes
BubR1MI01546
1 --
BubR1NP4609
1 --
BubR1D1326Nhypomorphic allele - genetic evidence0 Yes
BubR1Rev1hypomorphic allele - genetic evidence
0 Yes
BubR1unspecified
0 --
hide Alleles Carried on Transgenic Constructs ( 11 )
For All Alleles Carried on Transgenic Constructs Show

Allele of BubR1ClassMutagenStocksKnown lesion
BubR1DN.Scer\UASantimorphic allele - genetic evidence3 Yes
BubR1Scer\UAS.Exel3 Yes
BubR1GD107781 Yes
BubR1GL002361 Yes
BubR1GLV210651 Yes
BubR1A1204K.PR0 Yes
BubR1A1204K.T:Avic\GFP-S65T0 Yes
BubR1dsRNA.cGa0 --
BubR1KEN.T:Disc\RFP-mRFP0 Yes
BubR1T:Avic\GFP-S65T0 Yes
BubR1T:Disc\RFP-mRFP0 Yes
hide Aneuploid Aberrations
Disrupted in
Not disrupted in
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Transgenic Constructs
Type of construct
Name
Expression data
Insertions
Type of insertions
Name
Expression data
insertion of enhancer trap
insertion of enhancer trap binary system
miscellaneous insertions
hide Gene Ontology: Function, Process & Cellular Component ( 23 unique terms )
hide Terms Based on Experimental Evidence ( 18 terms )
Molecular Function ( 0 terms)
Biological Process
CV term
References
inferred from mutant phenotype
inferred from mutant phenotype
inferred from direct assay
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
inferred from genetic interaction with dup AND inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
Cellular Component
CV term
References
inferred from direct assay
inferred from direct assay
hide Terms Based on Predictions or Assertions ( 7 terms )
Molecular Function
CV term
References
non-traceable author statement
inferred from electronic annotation with InterPro:IPR008271
inferred from sequence or structural similarity
non-traceable author statement
Biological Process
CV term
References
inferred from sequence or structural similarity
traceable author statement
inferred from electronic annotation with InterPro:IPR000719, InterPro:IPR008271
non-traceable author statement
Cellular Component
CV term
References
traceable author statement
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Protein-protein
Interacting group
Assay
References
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Interacts with
Please look at the allele data for full details of the genetic interactions
BubR1 allele
Gene
References
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Linkouts
hide Orthologs
Genome-wide drosophilid orthologs
Curated drosophilid orthologs
Linkouts
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hide Stocks Listed in FlyBase ( 15 )
Bloomington
Harvard
Kyoto
VDRC
hide Genomic Clones ( 2 )
Please Note FlyBase no longer curates genomic clone accessions so this list may not be complete
hide cDNA Clones ( 43 )
Please Note
This section lists cDNAs and ESTs that fall within the genomic extent of the gene model, which may include cDNAs and ESTs of genes within introns, or of overlapping genes. Please see GBrowse for alignment of the cDNAs and ESTs to the gene model.
cDNA Clones, Fully Sequenced
BDGP DGC clones
Other clones
cDNA Clones, End Sequenced (ESTs)
BDGP DGC clones
Other clones
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Linkouts
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polyclonal
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Source for database identity of
Source for identity of: BubR1 CG7838
Source for database merge of
Source for merge of: BubR1 mcl(2)Z1525
Additional comments
Previous molecular and genetic analysis (FBrf0109303) identified the CG7838 annotation as having significant homology to "Bub1" proteins from other organisms (FlyBase curator comment: this resulted in the "CG7838" gene being renamed to "Bub1" in FlyBase). However, the completion of the Drosophila genome revealed the existence of a second annotation, CG14030, that is also closely related to "Bub1" proteins. Higher eukaryotes also have two genes encoding proteins closely related to "Bub1", one of which retains the symbol "Bub1", while the other is called "BubR1". From phylogenetic analysis including both CG7838 and CG14030 it is difficult to determine unequivocally which gene codes for "Bub1" and which gene codes for "BubR1". However, functional analysis of these proteins in FBrf0174806 suggests that CG14030 encodes the homolog of Bub1 (FlyBase curator comment: as a consequence of this, the gene corresponding to the CG7838 annotation has been renamed "BubR1" and the gene corresponding to the CG14030 annotation has been renamed "Bub1" in FlyBase).
hide Other Comments
RNAi screen using dsRNA made from templates generated with primers directed against this gene results in chromosome misalignment on the metaphase spindle when assayed in S2 cells. This phenotype can be observed when the screen is performed with or without Cdc27 dsRNA.
dsRNA against this gene has been used to treat SL2 cells to study the effect of depletion of BubR1 on the spindle checkpoint.
When dsRNA constructs are made and transiently transfected into S2 cells in RNAi experiments, aneuploidy, an increase in mitotic index, a decrease in the ratio of cells in prometaphase and metaphase versus the total number of mitotic cells, a whole range of mitotic abnormalities, central spindle defects, chromosome abnormalities, and lagging chromatids are seen.
BubR1 has a role in blocking exit from mitosis.
Loss of function mutations in BubR1 cause severe mitotic abnormalities consistent with accelerated transit through metaphase.
Mutants isolated in a screen of the second chromosome identifying genes affecting disc morphology.
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Sequence Crossreferences
RefSeq (Transcripts)
RefSeq (Proteins)
Entrez Gene - A searchable database of RefSeq genes.
Other Crossreferences
InterPro domains - A database of protein families, domains, and functional sites
Linkouts
hide Synonyms & Secondary IDs ( 19 )
Reported As
Symbol Synonym
BcDNA:LD23835
 
CG 7838
l(2)k06109
mcl(2)Z1525
 
Name Synonym
Bub1
 
Bub1-related kinase
 
bub related one
mcl(2)Z1525
 
Secondary FlyBase IDs
  • FBgn0022226
  • FBgn0025458
  • FBgn0069180
hide References ( 125 )
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hide Recent research papers ( 8 )
Di Stefano et al., 2011, Genes Dev. 25(1): 17--28
Functional antagonism between histone H3K4 demethylases in vivo. [FBrf0212709]
Neumüller et al., 2011, Cell Stem Cell 8(5): 580--593
Genome-Wide Analysis of Self-Renewal in Drosophila Neural Stem Cells by Transgenic RNAi. [FBrf0213621]
Przewloka et al., 2011, Curr. Biol. 21(5): 399--405
CENP-C Is a Structural Platform for Kinetochore Assembly. [FBrf0213151]
Venkei et al., 2011, Genetics 187(1): 131--140
Drosophila mis12 complex acts as a single functional unit essential for anaphase chromosome movement and a robust spindle assembly checkpoint. [FBrf0212773]
Li et al., 2010, Mol. Cell. Biol. 30(13): 3384--3395
Recruitment of Cdc20 to the kinetochore requires BubR1 but not Mad2 in Drosophila melanogaster. [FBrf0210988]
Nishiyama et al., 2010, Cell 143(5): 737--749
Sororin mediates sister chromatid cohesion by antagonizing wapl. [FBrf0212332]
Royou et al., 2010, Cell 140(2): 235--245
BubR1- and Polo-Coated DNA Tethers Facilitate Poleward Segregation of Acentric Chromatids. [FBrf0209924]
Schittenhelm et al., 2010, J. Cell Sci. 123(21): 3768--3779
Detrimental incorporation of excess Cenp-A/Cid and Cenp-C into Drosophila centromeres is prevented by limiting amounts of the bridging factor Cal1. [FBrf0212150]
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All reviews listed in FlyBase were published before 2010