FB2024_04 , released June 25, 2024
Gene: Dmel\ctp
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General Information
Symbol
Dmel\ctp
Species
D. melanogaster
Name
cut up
Annotation Symbol
CG6998
Feature Type
FlyBase ID
FBgn0011760
Gene Model Status
Stock Availability
Gene Summary
cut up (ctp) encodes the 8 kDa (LC8/DLC1) subunit of the cytoplasmic Dynein, as well as the Myosin V. It homodimerizes and binds to a variety of proteins. It is involved in both dynein-dependent and independent functions such as cell viability, axonal guidance, spermatid growth and individualization, and regulation of spermatogonial divisions. [Date last reviewed: 2019-03-07] (FlyBase Gene Snapshot)
Also Known As

LC8, ddlc1, Dlc, Ddlc-1, Cdlc1

Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
1-8
RefSeq locus
NC_004354 REGION:4687800..4702034
Sequence
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
Gene Ontology (GO) Annotations (28 terms)
Molecular Function (6 terms)
Terms Based on Experimental Evidence (6 terms)
CV Term
Evidence
References
inferred from physical interaction with FLYBASE:sw; FB:FBgn0003654
inferred from physical interaction with UniProtKB:Q9V9Y9
inferred from direct assay
inferred from mutant phenotype
inferred from direct assay
inferred from mutant phenotype
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN004317989
Biological Process (14 terms)
Terms Based on Experimental Evidence (13 terms)
CV Term
Evidence
References
inferred from mutant phenotype
involved_in chaeta development
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
involved_in oogenesis
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
involved_in spermatogenesis
inferred from mutant phenotype
inferred from mutant phenotype
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
Cellular Component (8 terms)
Terms Based on Experimental Evidence (8 terms)
CV Term
Evidence
References
located_in centriole
inferred from direct assay
inferred from direct assay
located_in cytoplasm
inferred from direct assay
is_active_in cytosol
inferred from direct assay
inferred from direct assay
is_active_in nucleus
inferred from direct assay
inferred from direct assay
inferred from mutant phenotype
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN004317989
Protein Family (UniProt)
Belongs to the dynein light chain family. (Q24117)
Summaries
Gene Snapshot
cut up (ctp) encodes the 8 kDa (LC8/DLC1) subunit of the cytoplasmic Dynein, as well as the Myosin V. It homodimerizes and binds to a variety of proteins. It is involved in both dynein-dependent and independent functions such as cell viability, axonal guidance, spermatid growth and individualization, and regulation of spermatogonial divisions. [Date last reviewed: 2019-03-07]
Gene Group (FlyBase)
DYNEIN LIGHT CHAINS -
Dyneins are minus end-directed microtubule motor protein complexes. Dynein light chains are involved in dynein complex assembly and interact with specific dynein adaptor proteins. (Adapted from PMID:19935668 and PMID:24064538).
PANORAMIX-INDUCED CO-TRANSCRIPTIONAL SILENCING COMPLEX -
The Panoramix-induced co-transcriptional silencing (PICTS) complex is a nuclear complex required for the formation of heterochromatin in piRNA-mediated silencing of transposable elements. (Adapted from FBrf0248008.)
Protein Function (UniProtKB)
Acts as a non-catalytic accessory component of a dynein complex.
(UniProt, Q24117)
Summary (Interactive Fly)

cytoskeletal protein - Hippo pathway - subunit of the cytoplasmic Dynein & of Myosin V - involved in both dynein-dependent and independent functions such as cell viability, axonal guidance, spermatid growth and individualization and regulation of spermatogonial divisions - wing and eye imaginal discs - part of a protein complex that regulates spindle orientation in neuroblasts

Gene Model and Products
Number of Transcripts
5
Number of Unique Polypeptides
2

Please see the JBrowse view of Dmel\ctp 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 Q24117)

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
PDB - An information portal to biological macromolecular structures
Comments on Gene Model

Gene model reviewed during 5.52

Gene model reviewed during 5.49

Low-frequency RNA-Seq exon junction(s) not annotated.

Gene model reviewed during 5.44

Annotated transcripts do not represent all supported alternative splices within 5' UTR.

Stop-codon suppression (UAA) postulated; FBrf0216884, FBrf0234051.

Gene model reviewed during 6.25

Sequence Ontology: Class of Gene
Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0070706
1483
89
FBtr0070704
1597
89
FBtr0070707
4416
89
FBtr0307065
4061
89
FBtr0474174
1483
267
Additional Transcript Data and Comments
Reported size (kB)

4.5, 2.4 (northern blot)

Comments
External Data
Crossreferences
Polypeptide Data
Annotated Polypeptides
Name
FlyBase ID
Predicted MW (kDa)
Length (aa)
Theoretical pI
UniProt
RefSeq ID
GenBank
FBpp0070674
10.4
89
7.50
FBpp0070672
10.4
89
7.50
FBpp0070675
10.4
89
7.50
FBpp0423173
31.1
267
4.25
Polypeptides with Identical Sequences

The group(s) of polypeptides indicated below share identical sequence to each other.

89 aa isoforms: ctp-PA, ctp-PB, ctp-PC, ctp-PE
Additional Polypeptide Data and Comments
Reported size (kDa)

89 (aa); 10 (kD predicted)

Comments
External Data
Subunit Structure (UniProtKB)

Interacts with spn-F (PubMed:16540510). Forms ternary complexes with spn-F and IKKepsilon (PubMed:26092846, PubMed:26540204).

(UniProt, Q24117)
Crossreferences
PDB - An information portal to biological macromolecular structures
Linkouts
Sequences Consistent with the Gene Model
Nucleotide / Polypeptide Records
 
Mapped Features

Click to get a list of regulatory features (enhancers, TFBS, etc.) and gene disruptions (point mutations, indels, etc.) within or overlapping Dmel\ctp 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).

-1.22

Transcript Expression
in situ
Stage
Tissue/Position (including subcellular localization)
Reference
organism

Comment: maternally deposited

antennal anlage

Comment: reported as procephalic ectoderm anlage

central brain anlage

Comment: reported as procephalic ectoderm anlage

dorsal head epidermis anlage

Comment: reported as procephalic ectoderm anlage

visual anlage

Comment: reported as procephalic ectoderm anlage

antennal primordium

Comment: reported as procephalic ectoderm primordium

central brain primordium

Comment: reported as procephalic ectoderm primordium

visual primordium

Comment: reported as procephalic ectoderm primordium

dorsal head epidermis primordium

Comment: reported as procephalic ectoderm primordium

lateral head epidermis primordium

Comment: reported as procephalic ectoderm primordium

ventral head epidermis primordium

Comment: reported as procephalic ectoderm primordium

northern blot
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data
Marker for
 
Subcellular Localization
CV Term
Polypeptide Expression
immunolocalization
Stage
Tissue/Position (including subcellular localization)
Reference
mass spectroscopy
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data

ctp protein is localized in the cytoplasm where it is associated with microtubules.

Marker for
 
Subcellular Localization
CV Term
Evidence
References
located_in centriole
inferred from direct assay
inferred from direct assay
located_in cytoplasm
inferred from direct assay
is_active_in cytosol
inferred from direct assay
inferred from direct assay
is_active_in nucleus
inferred from direct assay
inferred from direct assay
inferred from mutant phenotype
Expression Deduced from Reporters
High-Throughput Expression Data
Associated Tools

JBrowse - Visual display of RNA-Seq signals

View Dmel\ctp in JBrowse
RNA-Seq by Region - Search RNA-Seq expression levels by exon or genomic region
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
BDGP expression data - Patterns of gene expression in Drosophila embryogenesis
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
FlyExpress - Embryonic expression images (BDGP data)
  • Stages(s) 4-6
  • Stages(s) 7-8
  • Stages(s) 9-10
  • Stages(s) 11-12
Alleles, Insertions, Transgenic Constructs, and Aberrations
Classical and Insertion Alleles ( 56 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 12 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of ctp
Transgenic constructs containing regulatory region of ctp
Aberrations (Deficiencies and Duplications) ( 8 )
Variants
Variant Molecular Consequences
Alleles Representing Disease-Implicated Variants
Phenotypes
For more details about a specific phenotype click on the relevant allele symbol.
Lethality
Allele
Sterility
Allele
Other Phenotypes
Allele
Phenotype manifest in
Allele
actin filament & spermatid
actin filament bundle & nucleus
embryonic head & macrochaeta
head & macrochaeta
leg & macrochaeta & embryo
mesothoracic femoral chordotonal organ & axon
metathoracic femoral chordotonal organ & axon
nucleus & spermatid
prothoracic femoral chordotonal organ & axon
prothoracic femoral chordotonal organ & axon & pupa
scutum & macrochaeta
scutum & macrochaeta & embryo
scutum & microchaeta
scutum & microchaeta & embryo
wing & macrochaeta
Orthologs
Human Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Homo sapiens (Human) (4)
14 of 14
Yes
Yes
9 of 14
No
Yes
 
2  
3 of 14
No
No
1 of 14
No
No
Model Organism Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Rattus norvegicus (Norway rat) (8)
14 of 14
Yes
Yes
9 of 14
No
Yes
8 of 14
No
Yes
8 of 14
No
Yes
8 of 14
No
Yes
3 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
Mus musculus (laboratory mouse) (5)
14 of 14
Yes
Yes
9 of 14
No
Yes
8 of 14
No
Yes
3 of 14
No
No
1 of 14
No
No
Xenopus tropicalis (Western clawed frog) (5)
8 of 13
Yes
No
6 of 13
No
Yes
4 of 13
No
Yes
2 of 13
No
No
1 of 13
No
No
Danio rerio (Zebrafish) (7)
12 of 14
Yes
Yes
12 of 14
Yes
Yes
11 of 14
No
Yes
3 of 14
No
No
2 of 14
No
No
1 of 14
No
No
Caenorhabditis elegans (Nematode, roundworm) (5)
14 of 14
Yes
Yes
5 of 14
No
Yes
4 of 14
No
Yes
4 of 14
No
Yes
3 of 14
No
Yes
Anopheles gambiae (African malaria mosquito) (2)
12 of 12
Yes
Yes
Arabidopsis thaliana (thale-cress) (7)
12 of 13
Yes
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
3 of 13
No
Yes
1 of 13
No
Yes
Saccharomyces cerevisiae (Brewer's yeast) (1)
12 of 13
Yes
Yes
Schizosaccharomyces pombe (Fission yeast) (1)
12 of 12
Yes
Yes
Escherichia coli (enterobacterium) (0)
Other Organism Orthologs (via OrthoDB)
Data provided directly from OrthoDB:ctp. Refer to their site for version information.
Paralogs
Paralogs (via DIOPT v9.1)
Drosophila melanogaster (Fruit fly) (2)
12 of 13
4 of 13
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 ( 4 )
    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.
    Dmel gene
    Ortholog showing functional complementation
    Supporting References
    Interactions
    Summary of Physical Interactions
    esyN Network Diagram
    Show neighbor-neighbor interactions:
    Show/hide secondary interactors 
    (data from AllianceMine provided by esyN)
    Select Layout:
    Legend:
    Protein
    RNA
    Selected Interactor(s)
    Other Interaction Browsers

    Please see the Physical Interaction reports below for full details
    protein-protein
    Physical Interaction
    Assay
    References
    RNA-protein
    Physical Interaction
    Assay
    References
    Summary of Genetic Interactions
    esyN Network Diagram
    Show/hide secondary interactors 
    (data from AllianceMine provided by esyN)
    esyN Network Key:
    Suppression
    Enhancement
    Other Interaction Browsers

    Please look at the allele data for full details of the genetic interactions
    Starting gene(s)
    Interaction type
    Interacting gene(s)
    Reference
    Starting gene(s)
    Interaction type
    Interacting gene(s)
    Reference
    External Data
    Subunit Structure (UniProtKB)
    Interacts with spn-F (PubMed:16540510). Forms ternary complexes with spn-F and IKKepsilon (PubMed:26092846, PubMed:26540204).
    (UniProt, Q24117 )
    Linkouts
    BioGRID - A database of protein and genetic interactions.
    DroID - A comprehensive database of gene and protein interactions.
    MIST (genetic) - An integrated Molecular Interaction Database
    MIST (protein-protein) - An integrated Molecular Interaction Database
    Pathways
    Signaling Pathways (FlyBase)
    Metabolic Pathways
    External Data
    Linkouts
    KEGG Pathways - A collection of manually drawn pathway maps representing knowledge of molecular interaction, reaction and relation networks.
    Genomic Location and Detailed Mapping Data
    Chromosome (arm)
    X
    Recombination map
    1-8
    Cytogenetic map
    Sequence location
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    4C13-4C14
    Limits computationally determined from genome sequence between P{EP}CG2930EP1352 and P{EP}EP425
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    4C15-4D2
    (determined by in situ hybridisation) 4C5--8 (determined by in situ hybridisation) 4C7--8 (determined by in situ hybridisation) 4D1--2 (determined by in situ hybridisation) 4C13--16 (determined by in situ hybridisation) 4C11--14 (determined by in situ hybridisation) 4C15--CD3 (determined by in situ hybridisation)
    4C7-4C8
    (determined by in situ hybridisation)
    4C15-4D3
    (determined by in situ hybridisation) 4D1--2 (determined by in situ hybridisation) 4C5--8 (determined by in situ hybridisation) 4C15--D2 (determined by in situ hybridisation) 4D1--2 (determined by in situ hybridisation)
    4C11-4C14
    (determined by in situ hybridisation) 4C13--16 (determined by in situ hybridisation)
    4D1-4D3
    (determined by in situ hybridisation)
    4E1-4E2
    (determined by in situ hybridisation)
    4D-4D
    (determined by in situ hybridisation)
    Experimentally Determined Recombination Data
    Left of (cM)
    Right of (cM)
    Notes
    Stocks and Reagents
    Stocks (21)
    Genomic Clones (13)
     

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

    cDNA Clones (363)
     

    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)
    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

      ctp interacts with egl through a ctp interaction domain near the C terminus of egl and a well established binding motif in ctp.

      ctp is a swa-binding protein.

      ctp, a component of the dynein-dynactin complex, appears to have a role in normal terminal branching, synaptogenesis and stabilisation of some sensory neurons.

      After reaching the CNS, mutant axons exhibit errors in branching within the target domain.

      Molecular and genetic characterisation of ctp. Partial loss of function mutations cause pleiotrophic morphological defects in adults and total loss of function mutations are lethal and cause embryonic degeneration and wide-spread apoptotic cell death.

      Dlc mutations fail to complement the lethal and female-sterile phenotypes of ctp alleles. Dlc mutations also show the same sensory axon projection defects observed for ctp mutants.

      ctp is required for proper axon guidance of imaginal sensory neurons.

      Mutations of ctp enhance the phenotype of lethal I class of ct mutations. ctp has a non-additive interaction with eppy.

      Mutations cause occasional bristle loss and reduction in bristle length and thickness.

      Relationship to Other Genes
      Source for database merge of

      Source for merge of: ctp Cdlc1

      Source for merge of: ctp l(1)G0338 l(1)G0387 l(1)G0204 l(1)G0248 l(1)G0153 l(1)G0207 l(1)G0432 l(1)G0371

      Source for merge of: ctp anon-WO03040301.128

      Additional comments

      The Cdlc2 gene may be derived from the ctp gene by retroposition.

      Source for merge of ctp anon-WO03040301.128 was sequence comparison ( date:051113 ).

      Nomenclature History
      Source for database identify of

      Source for identity of: ctp CG6998

      Nomenclature comments
      Etymology
      Synonyms and Secondary IDs (42)
      Reported As
      Symbol Synonym
      anon-WO03040301.128
      l(1)G0244
      l(1)G0445
      Secondary FlyBase IDs
      • FBgn0015619
      • FBgn0015650
      • FBgn0027256
      • FBgn0027271
      • FBgn0027293
      • FBgn0028265
      • FBgn0028273
      • FBgn0028298
      • FBgn0028309
      • FBgn0028322
      • FBgn0028337
      • FBgn0040189
      • FBgn0066852
      Datasets (0)
      Study focus (0)
      Experimental Role
      Project
      Project Type
      Title
      Study result (0)
      Result
      Result Type
      Title
      External Crossreferences and Linkouts ( 95 )
      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 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/Swiss-Prot - Manually annotated and reviewed records of protein sequence and functional information
      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.
      BDGP expression data - Patterns of gene expression in Drosophila embryogenesis
      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
      KEGG Genes - Molecular building blocks of life in the genomic space.
      MARRVEL_MODEL - MARRVEL (model organism gene)
      PDB - An information portal to biological macromolecular structures
      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
      FlyMet - A comprehensive tissue-specific metabolomics resource for Drosophila.
      iBeetle-Base - RNAi phenotypes in the red flour beetle (Tribolium castaneum)
      Interactive Fly - A cyberspace guide to Drosophila development and metazoan evolution
      KEGG Pathways - A collection of manually drawn pathway maps representing knowledge of molecular interaction, reaction and relation networks.
      MIST (genetic) - An integrated Molecular Interaction Database
      MIST (protein-protein) - An integrated Molecular Interaction Database
      References (198)