FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Gene: Dmel\Nuf2
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General Information
Symbol
Dmel\Nuf2
Species
D. melanogaster
Name
Nuf2
Annotation Symbol
CG8902
Feature Type
protein_coding_gene
FlyBase ID
FBgn0031886
Gene Model Status
Current
Stock Availability
15 publicly available
Gene Summary
Nuf2 (Nuf2) encodes a protein involved in mitotic metaphase plate congression. [Date last reviewed: 2019-09-26] (FlyBase Gene Snapshot)
All Summaries
Key Links
Genomic Location
Cytogenetic map
27D7-27D7
Sequence location
Recombination map
2-24
RefSeq locus
NT_033779 REGION:7064431..7065837
Sequence
Get Decorated FASTA
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
NCBI
UCSC
Ensembl
PopFly
Function
Gene Ontology (GO) Annotations (5 terms)
Molecular Function (1 term)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
enables protein binding
inferred from physical interaction with UniProtKB:Q9V3V7
(Schittenhelm et al., 2007)
Terms Based on Predictions or Assertions (0 terms)
Biological Process (2 terms)
Terms Based on Experimental Evidence (2 terms)
CV Term
Evidence
References
involved_in chromosome segregation
inferred from mutant phenotype
(Przewloka et al., 2007)
involved_in mitotic metaphase chromosome alignment
inferred from mutant phenotype
(Przewloka et al., 2007)
Terms Based on Predictions or Assertions (0 terms)
Cellular Component (2 terms)
Terms Based on Experimental Evidence (2 terms)
CV Term
Evidence
References
located_in kinetochore
inferred from direct assay
(Venkei et al., 2011, Goshima et al., 2007, Przewloka et al., 2007, Schittenhelm et al., 2007)
part_of Ndc80 complex
inferred from direct assay
(Schittenhelm et al., 2007)
Terms Based on Predictions or Assertions (0 terms)
Gene Group (FlyBase)
Protein Family (UniProt)
-
Protein Signatures (InterPro)
Summaries
Gene Snapshot
Nuf2 (Nuf2) encodes a protein involved in mitotic metaphase plate congression. [Date last reviewed: 2019-09-26]
Gene Group (FlyBase)
NDC80 KINETOCHORE COMPLEX -
The NDC80 complex is an outer kinetochore component that binds spindle microtubules during chromosome segregation (Adapted from FBrf0231098.)
Gene Model and Products
Number of Transcripts
1
Number of Unique Polypeptides
1

Please see the JBrowse view of Dmel\Nuf2 for information on other features

To submit a correction to a gene model please use the Contact FlyBase form

Protein Domains (via Pfam)
Isoform displayed:
Pfam protein domains
InterPro name
classification
start
end
Protein Domains (via SMART)
Isoform displayed:
SMART protein domains
InterPro name
classification
start
end
Structure
Protein 3D structure   (Predicted by AlphaFold)   (AlphaFold entry Q9VM45)

If you don't see a structure in the viewer, refresh your browser.
Model Confidence:
  • Very high (pLDDT > 90)
  • Confident (90 > pLDDT > 70)
  • Low (70 > pLDDT > 50)
  • Very low (pLDDT < 50)

AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100. Some regions with low pLDDT may be unstructured in isolation.

Experimentally Determined Structures
Crossreferences
Comments on Gene Model

Gene model reviewed during 5.46

Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
Nuf2-RA
FBtr0079424
NM_135252
1290
395
Additional Transcript Data and Comments
Reported size (kB)
Comments
External Data
Crossreferences
Polypeptide Data
Annotated Polypeptides
Name
FlyBase ID
Predicted MW (kDa)
Length (aa)
Theoretical pI
UniProt
RefSeq ID
GenBank
Nuf2-PA
FBpp0079052
45.7
395
6.94
Q9VM45
NP_609096
AAF52482
Polypeptides with Identical Sequences

There is only one protein coding transcript and one polypeptide associated with this gene

Additional Polypeptide Data and Comments
Reported size (kDa)
Comments
External Data
Crossreferences
InterPro - A database of protein families, domains and functional sites
Linkouts
Sequences Consistent with the Gene Model
Mapped Features

Click to get a list of regulatory features (enhancers, TFBS, etc.) and gene disruptions (point mutations, indels, etc.) within or overlapping Dmel\Nuf2 using the Feature Mapper tool.

External Data
Crossreferences
Eukaryotic Promoter Database - A collection of databases of experimentally validated promoters for selected model organisms.
Linkouts
Expression Data
Testis-specificity index

The testis specificity index was calculated from modENCODE tissue expression data by Vedelek et al., 2018 to indicate the degree of testis enrichment compared to other tissues. Scores range from -2.52 (underrepresented) to 5.2 (very high testis bias).

0.49

Transcript Expression
Additional Descriptive Data
Marker for
 
Subcellular Localization
CV Term
Polypeptide Expression
epitope tag
Stage
Tissue/Position (including subcellular localization)
Reference
embryonic stage 4 -- 5
cell

Comment: Localization observed in mitotic cells at embryonic cycle 14

(Schittenhelm et al., 2007)
Additional Descriptive Data

Subcellular localization to kinetochores of embryonic mitotic cells assayed using the transgenic allele Nuf2T:AvicGFP-EGFP.

(Schittenhelm et al., 2007)
Marker for
 
Subcellular Localization
CV Term
Evidence
References
located_in kinetochore
inferred from direct assay
(Venkei et al., 2011, Goshima et al., 2007, Przewloka et al., 2007, Schittenhelm et al., 2007)
part_of Ndc80 complex
inferred from direct assay
(Schittenhelm et al., 2007)
Expression Deduced from Reporters
Reporter: P{gEGFP-Nuf2}
Stage
Tissue/Position (including subcellular localization)
Reference
embryonic stage 4 -- 5
cell

Comment: Localization observed in mitotic cells at embryonic cycle 14

(Schittenhelm et al., 2007)
High-Throughput Expression Data
Associated Tools

JBrowse - Visual display of RNA-Seq signals

View Dmel\Nuf2 in JBrowse
RNA-Seq by Region - Search RNA-Seq expression levels by exon or genomic region
Bulk Downloads
RNA-Seq RPKM values for all genes
Reference
See Gelbart and Emmert, 2013 for analysis details and data files for all genes.
Developmental Proteome: Life Cycle
Developmental Proteome: Embryogenesis
External Data and Images
Linkouts
DRscDB - A single-cell RNA-seq resource for data mining and data comparison across species
EMBL-EBI Single Cell Expression Atlas - Single cell expression across species
FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
FlyAtlas2 - A Drosophila melanogaster expression atlas with RNA-Seq, miRNA-Seq and sex-specific data
Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
Flygut - An atlas of the Drosophila adult midgut
Images
FlyBase Wiki
Image Based Resources
Alleles, Insertions, Transgenic Constructs, and Aberrations
Classical and Insertion Alleles ( 5 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 10 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of Nuf2
Transgenic constructs containing regulatory region of Nuf2
Aberrations (Deficiencies and Duplications) ( 3 )
Inferred from experimentation ( 3 )
Gene disrupted in
Df(2L)ade3
(Schittenhelm et al., 2007)
Df(2L)Exel7030
(Ryder, 2004.4.26)
Df(2L)Mnn1Δ65
(Cerrato et al., 2006)
Inferred from location ( 4 )
Variants
Variant Molecular Consequences
Alleles Representing Disease-Implicated Variants
Phenotypes
Orthologs
Downloads
Download All DIOPT Orthologs
Human Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Source
Compara
Domainoid
eggNOG
Hieranoid
Homologene
Inparanoid
OMA
OrthoDB
OrthoFinder
OrthoInspector
orthoMCL
Panther
Phylome
SonicParanoid
Alignment
Complementation?
Transgene?
Homo sapiens (Human) (0)
Model Organism Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Source
Compara
Domainoid
eggNOG
Hieranoid
Homologene
Inparanoid
OMA
OrthoDB
OrthoFinder
OrthoInspector
orthoMCL
Panther
Phylome
SonicParanoid
Alignment
Complementation?
Transgene?
Rattus norvegicus (Norway rat) (0)
Mus musculus (laboratory mouse) (1)
Mmus\Lama3
1 of 14
Yes
No
Xenopus tropicalis (Western clawed frog) (0)
Danio rerio (Zebrafish) (0)
Caenorhabditis elegans (Nematode, roundworm) (0)
Anopheles gambiae (African malaria mosquito) (1)
Agam\AgaP_AGAP004753
5 of 12
Yes
Yes
Arabidopsis thaliana (thale-cress) (0)
Saccharomyces cerevisiae (Brewer's yeast) (0)
Schizosaccharomyces pombe (Fission yeast) (0)
Escherichia coli (enterobacterium) (0)
Other Organism Orthologs (via OrthoDB)
Data provided directly from OrthoDB:Nuf2. Refer to their site for version information.
Paralogs
Downloads
Download All DIOPT Paralogs
Paralogs (via DIOPT v9.1)
Human Disease Associations
FlyBase Human Disease Model Reports
    Disease Ontology (DO) Annotations
    Models Based on Experimental Evidence ( 0 )
    Allele
    Disease
    Evidence
    References
    Potential Models Based on Orthology ( 0 )
    Human Ortholog
    Disease
    Evidence
    References
    Modifiers Based on Experimental Evidence ( 1 )
    Allele
    Disease
    Interaction
    References
    Nuf2GD14063
    ameliorates  tauopathy
    modeled by Hsap\MAPTR406W.UAS
    (Butzlaff et al., 2015)
    Disease Associations of Human Orthologs (via DIOPT v9.1 and OMIM)
    Note that ortholog calls supported by only 1 or 2 algorithms (DIOPT score < 3) are not shown.
    Homo sapiens (Human)
    Gene name
    Score
    OMIM
    OMIM Phenotype
    DO term
    Complementation?
    Transgene?
    Functional Complementation Data
    Functional complementation data is computed by FlyBase using a combination of the orthology data obtained from DIOPT and OrthoDB and the allele-level genetic interaction data curated from the literature.
    Interactions
    Summary of Physical Interactions
    Interaction Browsers
    View in FlyBase Interactions Browser   View in MIST tool (external link)
    Please see the Physical Interaction reports below for full details
    protein-protein
    Physical Interaction
    Assay
    References
    Nuf2 - Arp1
    anti tag coimmunoprecipitation, peptide massfingerprinting
    (Przewloka et al., 2007)
    Nuf2 - CG3339
    anti tag coimmunoprecipitation, peptide massfingerprinting
    (Przewloka et al., 2007)
    Nuf2 - CG7611
    anti tag coimmunoprecipitation, peptide massfingerprinting
    (Przewloka et al., 2007)
    Nuf2 - Cenp-C
    anti tag coimmunoprecipitation, peptide massfingerprinting
    (Przewloka et al., 2011)
    Nuf2 - Dhc62B
    anti tag coimmunoprecipitation, peptide massfingerprinting
    (Przewloka et al., 2007)
    Nuf2 - Dhc64C
    anti tag coimmunoprecipitation, peptide massfingerprinting
    (Przewloka et al., 2007)
    Nuf2 - Dhc93AB
    anti tag coimmunoprecipitation, peptide massfingerprinting
    (Przewloka et al., 2007)
    Nuf2 - Kmn1
    anti tag coimmunoprecipitation, peptide massfingerprinting
    (Przewloka et al., 2007, Schittenhelm et al., 2007)
    Nuf2 - Mis12
    anti tag coimmunoprecipitation, peptide massfingerprinting
    (Przewloka et al., 2007, Schittenhelm et al., 2007)
    Nuf2 - Ndc80
    anti tag coimmunoprecipitation, peptide massfingerprinting
    (Przewloka et al., 2007)
    Nuf2 - Nnf1a
    anti tag coimmunoprecipitation, peptide massfingerprinting
    (Przewloka et al., 2007, Schittenhelm et al., 2007)
    Nuf2 - Nnf1b
    anti tag coimmunoprecipitation, peptide massfingerprinting
    (Przewloka et al., 2007)
    Nuf2 - Prp31
    pull down, western blot, anti bait coimmunoprecipitation
    (Pellacani et al., 2018)
    Nuf2 - Sf3a2
    anti bait coimmunoprecipitation, western blot, pull down
    (Pellacani et al., 2018)
    Nuf2 - Spc105R
    anti tag coimmunoprecipitation, peptide massfingerprinting
    (Przewloka et al., 2007)
    Nuf2 - Spc25
    anti tag coimmunoprecipitation, peptide massfingerprinting
    (Przewloka et al., 2007, Schittenhelm et al., 2007)
    Nuf2 - btv
    anti tag coimmunoprecipitation, peptide massfingerprinting
    (Przewloka et al., 2007)
    Nuf2 - cana
    anti tag coimmunoprecipitation, peptide massfingerprinting
    (Przewloka et al., 2007)
    Nuf2 - dgt6
    anti bait coimmunoprecipitation, western blot
    (Bucciarelli et al., 2009)
    Summary of Genetic Interactions
    Interaction Browsers
    Starting gene(s)
    Interaction type
    Interacting gene(s)
    Reference
    Starting gene(s)
    Interaction type
    Interacting gene(s)
    Reference
    External Data
    Linkouts
    BioGRID - A database of protein and genetic interactions.
    DroID - A comprehensive database of gene and protein interactions.
    MIST (protein-protein) - An integrated Molecular Interaction Database
    Pathways
    Signaling Pathways (FlyBase)
    Metabolic Pathways
    FlyBase
    External Links
    External Data
    Linkouts
    Class of Gene
    Genomic Location and Detailed Mapping Data
    Chromosome (arm)
    2L
    Recombination map
    2-24
    Cytogenetic map
    27D7-27D7
    Sequence location
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    27D7-27D7
    Limits computationally determined from genome sequence between P{PZ}snRNP70K02107 and P{PZ}wg02657
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    Experimentally Determined Recombination Data
    Location

    2-24

    (FlyBase, 2016)

    2-23.2

    (Comeron et al., 2012)
    Left of (cM)
    Right of (cM)
    Notes
    Stocks and Reagents
    Stocks (15)
    Genomic Clones (18)
     

    Please Note FlyBase no longer curates genomic clone accessions so this list may not be complete

    cDNA Clones (27)
     

    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 JBrowse for alignment of the cDNAs and ESTs to the gene model.

    cDNA clones, fully sequenced
    BDGP DGC clones
    Other clones
      Drosophila Genomics Resource Center cDNA clones

      For each fully sequenced cDNA the DGRC maintains various forms of the cDNA (e.g tagged or untagged) in several different host vectors for subsequent cloning and expression in Drosophila and Drosophila cell lines.

      cDNA Clones, End Sequenced (ESTs)
      BDGP DGC clones
      Other clones
      RNAi and Array Information
      Linkouts
      DRSC - Results frm RNAi screens
      Antibody Information
      Laboratory Generated Antibodies
       
      Commercially Available Antibodies
       
      Cell Line Information
      Publicly Available Cell Lines
       
        Other Stable Cell Lines
         
          Other Comments

          RNAi screen using dsRNA made from templates generated with primers directed against this gene results in chromosome misalignment on the metaphase spindle and a spindle that is aberrantly long when assayed in S2 cells. This phenotype can be observed when the screen is performed with or without Cdc27 dsRNA.

          (Goshima et al., 2007)

          3 alleles of CG8902 recovered in a P-insertion screen.

          (Oh et al., 2003)

          Area matching Drosophila ESTs AA801691 and AA441008. Probable intron in gene represented by EST AA801691.

          (Davies, 2001.3.15)
          Relationship to Other Genes
          Source for database merge of

          Source for merge of: CG8902 anon-WO0118547.214

          (FlyBase, 1996-)
          Additional comments

          Source for merge of CG8902 anon-WO0118547.214 was sequence comparison ( date:051113 ).

          (FlyBase, 1996-)
          Nomenclature History
          Source for database identify of

          Source for identity of: Nuf2 CG8902

          (Goshima et al., 2007, Przewloka et al., 2007, Schittenhelm et al., 2007)
          Nomenclature comments
          Etymology
          Synonyms and Secondary IDs (6)
          Datasets (0)
          Study focus (0)
          Experimental Role
          Project
          Project Type
          Title
          Study result (0)
          Result
          Result Type
          Title
          External Crossreferences and Linkouts ( 33 )
          Sequence Crossreferences
          NCBI Gene - Gene integrates information from a wide range of species. A record may include nomenclature, Reference Sequences (RefSeqs), maps, pathways, variations, phenotypes, and links to genome-, phenotype-, and locus-specific resources worldwide.
          GenBank Nucleotide - A collection of sequences from several sources, including GenBank, RefSeq, TPA, and PDB.
          GenBank Protein - A collection of sequences from several sources, including translations from annotated coding regions in GenBank, RefSeq and TPA, as well as records from SwissProt, PIR, PRF, and PDB.
          RefSeq - A comprehensive, integrated, non-redundant, well-annotated set of reference sequences including genomic, transcript, and protein.
          UniProt/GCRP - The gene-centric reference proteome (GCRP) provides a 1:1 mapping between genes and UniProt accessions in which a single 'canonical' isoform represents the product(s) of each protein-coding gene.
          UniProt/TrEMBL - Automatically annotated and unreviewed records of protein sequence and functional information
          Other crossreferences
          AlphaFold DB - AlphaFold provides open access to protein structure predictions for the human proteome and other key proteins of interest, to accelerate scientific research.
          DRscDB - A single-cell RNA-seq resource for data mining and data comparison across species
          EMBL-EBI Single Cell Expression Atlas - Single cell expression across species
          FlyAtlas2 - A Drosophila melanogaster expression atlas with RNA-Seq, miRNA-Seq and sex-specific data
          FlyMine - An integrated database for Drosophila genomics
          InterPro - A database of protein families, domains and functional sites
          KEGG Genes - Molecular building blocks of life in the genomic space.
          MARRVEL_MODEL - MARRVEL (model organism gene)
          Linkouts
          BioGRID - A database of protein and genetic interactions.
          Drosophila Genomics Resource Center - Drosophila Genomics Resource Center (DGRC) cDNA clones
          DroID - A comprehensive database of gene and protein interactions.
          DRSC - Results frm RNAi screens
          Eukaryotic Promoter Database - A collection of databases of experimentally validated promoters for selected model organisms.
          FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
          FlyCyc Genes - Genes from a BioCyc PGDB for Dmel
          Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
          Flygut - An atlas of the Drosophila adult midgut
          MIST (protein-protein) - An integrated Molecular Interaction Database
          References (72)