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General Information
Symbol
Dmel\crm
Species
D. melanogaster
Name
cramped
Annotation Symbol
CG2714
Feature Type
FlyBase ID
FBgn0000376
Gene Model Status
Stock Availability
Gene Snapshot
In progress.Contributions welcome.
Also Known As
zw9, l(1)zw9, zw-9, sa, EG:95B7 .2
Key Links
Genomic Location
Cytogenetic map
Sequence location
X:2,734,248..2,738,773 [-]
Recombination map
1-1.5
Sequence
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
GO Summary Ribbons
Protein Family (UniProt)
Belongs to the cramped family. (O76906)
Protein Signatures (InterPro)
Molecular Function (GO)
[Detailed GO annotations]
Experimental Evidence
Predictions / Assertions
Summaries
Protein Function (UniProtKB)
Polycomb group (Pc-G) genes are needed to maintain expression patterns of the homeotic selector genes of the Antennapedia (Antp-C) and Bithorax (Bx-C) complexes, and hence for the maintenance of segmental determination. Can act as a modifier of position effect variegation (PEV).
(UniProt, O76906)
Phenotypic Description (Red Book; Lindsley and Zimm 1992)
*crm: cramped
Antennae swollen, aristae short, and branches fewer than in wild type. Wings slightly divergent and in some alleles nicked. Males have small extra sex combs on second tarsal segment of prothoracic legs and less frequently on basitarsal segments of mesothoracic and rarely metathoracic legs. crmsa;Pc/+ males have large sex combs on all six basitarsi and small sex combs on all second tarsal segments in many flies. One or both postverticals lacking and other bristles occasionally missing or doubled. Body slightly darkened. Fertility of both males and females reduced, females more severely than males. Strength of sterilizing effect allele dependent. Females generally sterile; surviving crml females have rudimentary ovaries with no oocytes beyond stage 7 (Shannon, Kaufman, Shen, and Judd, 1972, DIS 48: 92); males of crm2 and crm7 partially fertile, other alleles male sterile. Viability variably reduced depending on crowding in culture; crm4, crm7 are semilethal alleles, crm6 die in late third instar; survivors eclose on days 11-13; rarely survive in combination with a deficiency (Judd, Shen, and Kaufman, 1972, Genetics 71: 139-56; Shannon et al., 1972).
Summary (Interactive Fly)
Gene Model and Products
Number of Transcripts
2
Number of Unique Polypeptides
1

Please see the GBrowse view of Dmel\crm or the JBrowse view of Dmel\crm 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
Comments on Gene Model
Gene model reviewed during 5.50
Sequence Ontology: Class of Gene
Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0070496
3780
982
FBtr0070495
3837
982
Additional Transcript Data and Comments
Reported size (kB)
3.793 (longest cDNA)
Comments
External Data
Crossreferences
Polypeptide Data
Annotated Polypeptides
Name
FlyBase ID
Predicted MW (kDa)
Length (aa)
Theoretical pI
RefSeq ID
GenBank
FBpp0070473
107.4
982
8.23
FBpp0070472
107.4
982
8.23
Polypeptides with Identical Sequences

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

982 aa isoforms: crm-PA, crm-PB
Additional Polypeptide Data and Comments
Reported size (kDa)
693 (aa); 110 (kD observed); 75 (kD predicted)
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\crm using the Feature Mapper tool.

External Data
Crossreferences
Eukaryotic Promoter Database - A collection of databases of experimentally validated promoters for selected model organisms.
Linkouts
Gene Ontology (5 terms)
Molecular Function (2 terms)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
inferred from direct assay
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN001093019
(assigned by GO_Central )
non-traceable author statement
(assigned by UniProt )
Biological Process (2 terms)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
inferred from mutant phenotype
(assigned by UniProt )
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
non-traceable author statement
(assigned by UniProt )
Cellular Component (1 term)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
inferred from direct assay
(assigned by UniProt )
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN001093019
(assigned by GO_Central )
Expression Data
Expression Summary Ribbons
Colored tiles in ribbon indicate that expression data has been curated by FlyBase for that anatomical location. Colorless tiles indicate that there is no curated data for that location.
For complete stage-specific expression data, view the modENCODE Development RNA-Seq section under High-Throughput Expression below.
Transcript Expression
in situ
Stage
Tissue/Position (including subcellular localization)
Reference
organism

Comment: maternally deposited

Additional Descriptive Data
Marker for
 
Subcellular Localization
CV Term
Polypeptide Expression
immunolocalization
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data
crm protein is ubiquitously expressed throughout development. Expression is strong in nuclei during nuclear multiplication and cellularization and in pole cells. Later in embryogenesis, strong staining is observed in the CNS and the gonads. In third instar larvae, strong staining is observed in polytene nuclei of salivary glands. crm protein and mus209 protein display overlapping expression patterns during embryogenesis and appear to co-localize in polytene nuclei.
Marker for
 
Subcellular Localization
CV Term
Evidence
References
inferred from direct assay
(assigned by UniProt )
Expression Deduced from Reporters
High-Throughput Expression Data
Associated Tools

GBrowse - Visual display of RNA-Seq signals

View Dmel\crm in GBrowse 2
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
FLIGHT - Cell culture data for RNAi and other high-throughput technologies
FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
Flygut - An atlas of the Drosophila adult midgut
Images
Alleles, Insertions, and Transgenic Constructs
Classical and Insertion Alleles ( 30 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 24 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of crm
Transgenic constructs containing regulatory region of crm
Deletions and Duplications ( 79 )
Not disrupted in
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
sex comb & mesothoracic tarsal segment 2
sex comb & prothoracic tarsal segment 2
Orthologs
Human Orthologs (via DIOPT v7.1)
Homo sapiens (Human) (1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
10 of 15
Yes
Yes
Model Organism Orthologs (via DIOPT v7.1)
Mus musculus (laboratory mouse) (1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
10 of 15
Yes
Yes
Rattus norvegicus (Norway rat) (1)
6 of 13
Yes
Yes
Xenopus tropicalis (Western clawed frog) (1)
4 of 12
Yes
Yes
Danio rerio (Zebrafish) (2)
11 of 15
Yes
Yes
Caenorhabditis elegans (Nematode, roundworm) (2)
8 of 15
Yes
Yes
1 of 15
No
No
Arabidopsis thaliana (thale-cress) (2)
1 of 9
Yes
Yes
1 of 9
Yes
Yes
Saccharomyces cerevisiae (Brewer's yeast) (0)
No records found.
Schizosaccharomyces pombe (Fission yeast) (0)
No records found.
Orthologs in Drosophila Species (via OrthoDB v9.1) ( EOG091905EQ )
Organism
Common Name
Gene
AAA Syntenic Ortholog
Multiple Dmel Genes in this Orthologous Group
Drosophila melanogaster
fruit fly
Drosophila suzukii
Spotted wing Drosophila
Drosophila simulans
Drosophila sechellia
Drosophila erecta
Drosophila yakuba
Drosophila ananassae
Drosophila pseudoobscura pseudoobscura
Drosophila persimilis
Drosophila willistoni
Drosophila virilis
Drosophila mojavensis
Drosophila grimshawi
Orthologs in non-Drosophila Dipterans (via OrthoDB v9.1) ( EOG091502OE )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Musca domestica
House fly
Glossina morsitans
Tsetse fly
Lucilia cuprina
Australian sheep blowfly
Mayetiola destructor
Hessian fly
Mayetiola destructor
Hessian fly
Mayetiola destructor
Hessian fly
Aedes aegypti
Yellow fever mosquito
Anopheles darlingi
American malaria mosquito
Anopheles gambiae
Malaria mosquito
Culex quinquefasciatus
Southern house mosquito
Orthologs in non-Dipteran Insects (via OrthoDB v9.1) ( EOG090W03DQ )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Bombyx mori
Silkmoth
Danaus plexippus
Monarch butterfly
Heliconius melpomene
Postman butterfly
Apis florea
Little honeybee
Apis mellifera
Western honey bee
Bombus impatiens
Common eastern bumble bee
Bombus terrestris
Buff-tailed bumblebee
Linepithema humile
Argentine ant
Megachile rotundata
Alfalfa leafcutting bee
Nasonia vitripennis
Parasitic wasp
Dendroctonus ponderosae
Mountain pine beetle
Dendroctonus ponderosae
Mountain pine beetle
Tribolium castaneum
Red flour beetle
Pediculus humanus
Human body louse
Rhodnius prolixus
Kissing bug
Cimex lectularius
Bed bug
Acyrthosiphon pisum
Pea aphid
Zootermopsis nevadensis
Nevada dampwood termite
Orthologs in non-Insect Arthropods (via OrthoDB v9.1) ( EOG090X01XB )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Strigamia maritima
European centipede
Ixodes scapularis
Black-legged tick
Stegodyphus mimosarum
African social velvet spider
Tetranychus urticae
Two-spotted spider mite
Daphnia pulex
Water flea
Orthologs in non-Arthropod Metazoa (via OrthoDB v9.1) ( EOG091G050A )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Strongylocentrotus purpuratus
Purple sea urchin
Ciona intestinalis
Vase tunicate
Ciona intestinalis
Vase tunicate
Gallus gallus
Domestic chicken
Paralogs
Paralogs (via DIOPT v7.1)
Drosophila melanogaster (Fruit fly) (0)
No records found.
Human Disease Associations
FlyBase Human Disease Model Reports
    Disease Model Summary Ribbon
    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 ( 0 )
    Allele
    Disease
    Interaction
    References
    Comments on Models/Modifiers Based on Experimental Evidence ( 0 )
     
    Disease Associations of Human Orthologs (via DIOPT v7.1 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
    esyN Network Diagram
    Show neighbor-neighbor interactions:
    Select Layout:
    Legend:
    Protein
    RNA
    Selected Interactor(s)
    Interactions Browser

    Please see the Physical Interaction reports below for full details
    protein-protein
    Physical Interaction
    Assay
    References
    Summary of Genetic Interactions
    esyN Network Diagram
    esyN Network Key:
    Suppression
    Enhancement

    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
    Linkouts
    BioGRID - A database of protein and genetic interactions.
    DroID - A comprehensive database of gene and protein interactions.
    InterologFinder - Protein-protein interactions (PPI) from both known and predicted PPI data sets.
    MIST (genetic) - An integrated Molecular Interaction Database
    Pathways
    Gene Group - Pathway Membership (FlyBase)
    External Data
    Linkouts
    Genomic Location and Detailed Mapping Data
    Chromosome (arm)
    X
    Recombination map
    1-1.5
    Cytogenetic map
    Sequence location
    X:2,734,248..2,738,773 [-]
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    3B3-3B4
    Limits computationally determined from genome sequence between P{EP}EP1362 and P{EP}dncEP1395
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    Experimentally Determined Recombination Data
    Location
    1-1.3 +/- 0.5
    1-1.4 +/- 0.1
    1-1.48
    Notes
    No crossing over with w in 254 flies.
    Mapping based on crmsa with w.
    Stocks and Reagents
    Stocks (12)
    Genomic Clones (15)
     

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

    cDNA Clones (38)
     

    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 sequences
    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)
      RNAi and Array Information
      Linkouts
      DRSC - Results frm RNAi screens
      GenomeRNAi - A database for cell-based and in vivo RNAi phenotypes and reagents
      Antibody Information
      Laboratory Generated Antibodies
       
      Commercially Available Antibodies
       
      Other Information
      Relationship to Other Genes
      Source for database identify of
      Source for identity of: crm CG2714
      Source for database merge of
      Additional comments
      l(1)zw9, sa: sparse arista and swa: swollen antennae. These are now designated alleles of crm.
      Other Comments
      A member of the Pc group. The genetic interaction between crm and mus209 highlight possible interactions between Pc-group mediated gene silencing and DNA replication.
      Mutants exhibit typical Pc-group phenotypes, including homeotic transformations and modification of PEV.
      crm is allelic with 'sa'.
      l(1)zw9 is synonymous with sa.
      Antennae swollen, aristae short and branches fewer than in wild type. Wings slightly divergent and in some alleles nicked. Males have small extra sex combs on second tarsal segment of prothoracic legs and less frequently on basitarsal segments of mesothoracic and rarely metathoracic legs. crmsa;Pc/+ males have large sex combs on all six basitarsi and small sex combs on all second tarsal segments in many flies. One or both postverticals lacking and other bristles occasionally missing or doubled. Body slightly darkened. Fertility of both males and females reduced, females more severely than males. Strength of sterilizing effect allele-dependent. Females generally sterile.
      Origin and Etymology
      Discoverer
      Bateman.
      Etymology
      Identification
      External Crossreferences and Linkouts ( 131 )
      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/Swiss-Prot - Manually annotated and reviewed records of protein sequence and functional information
      Other crossreferences
      BDGP expression data - Patterns of gene expression in Drosophila embryogenesis
      Drosophila Genomics Resource Center - Drosophila Genomics Resource Center (DGRC) cDNA clones
      Eukaryotic Promoter Database - A collection of databases of experimentally validated promoters for selected model organisms.
      Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
      Flygut - An atlas of the Drosophila adult midgut
      GenomeRNAi - A database for cell-based and in vivo RNAi phenotypes and reagents
      iBeetle-Base - RNAi phenotypes in the red flour beetle (Tribolium castaneum)
      InterPro - A database of protein families, domains and functional sites
      KEGG Genes - Molecular building blocks of life in the genomic space.
      modMine - A data warehouse for the modENCODE project
      Linkouts
      BioGRID - A database of protein and genetic interactions.
      DroID - A comprehensive database of gene and protein interactions.
      DRSC - Results frm RNAi screens
      FLIGHT - Cell culture data for RNAi and other high-throughput technologies
      FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
      FlyMine - An integrated database for Drosophila genomics
      Interactive Fly - A cyberspace guide to Drosophila development and metazoan evolution
      InterologFinder - Protein-protein interactions (PPI) from both known and predicted PPI data sets.
      MIST (genetic) - An integrated Molecular Interaction Database
      Synonyms and Secondary IDs (17)
      Datasets (0)
      Study focus (0)
      Experimental Role
      Project
      Project Type
      Title
      References (103)