FB2025_05 , released December 11, 2025
Gene: Dmel\phtm
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General Information
Symbol
Dmel\phtm
Species
D. melanogaster
Name
phantom
Annotation Symbol
CG6578
Feature Type
FlyBase ID
FBgn0004959
Gene Model Status
Stock Availability
Gene Summary
phantom (phtm) encodes a cytochrome P450 involved in ecdysteroid biosynthesis. It is an endoplasmic reticulum protein that catalyzes the addition of a hydroxyl group to the 25 carbon of the cholesterol side chain. phtm mutants fail to undergo head involution, dorsal closure and cuticle secretion. [Date last reviewed: 2019-03-14] (FlyBase Gene Snapshot)
Also Known As

phm, Cyp306a1, exo, Cyp306a1-Dm

Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
1-60
RefSeq locus
NC_004354 REGION:18685766..18688433
Sequence
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
Gene Ontology (GO) Annotations (16 terms)
Molecular Function (7 terms)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
inferred from direct assay
Terms Based on Predictions or Assertions (6 terms)
CV Term
Evidence
References
Biological Process (7 terms)
Terms Based on Experimental Evidence (4 terms)
CV Term
Evidence
References
inferred from mutant phenotype
inferred from direct assay
inferred from mutant phenotype
involved_in oogenesis
inferred from mutant phenotype
Terms Based on Predictions or Assertions (3 terms)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN000670347
inferred from biological aspect of ancestor with PANTHER:PTN000670521
inferred from biological aspect of ancestor with PANTHER:PTN000670347
Cellular Component (2 terms)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
is_active_in cytoplasm
inferred from biological aspect of ancestor with PANTHER:PTN000670347
Gene Group (FlyBase)
Protein Family (UniProt)
Belongs to the cytochrome P450 family. (Q9VWR5)
Summaries
Gene Snapshot
phantom (phtm) encodes a cytochrome P450 involved in ecdysteroid biosynthesis. It is an endoplasmic reticulum protein that catalyzes the addition of a hydroxyl group to the 25 carbon of the cholesterol side chain. phtm mutants fail to undergo head involution, dorsal closure and cuticle secretion. [Date last reviewed: 2019-03-14]
Gene Group (FlyBase)
CYTOCHROME P450 - CYP2 CLAN -
Cytochrome P450, or CYP genes, constitute one of the largest families of genes, with representatives in virtually all living organisms. P450 enzymes are heme-thiolate proteins best known for their monooxygenase role, catalyzing the transfer of one atom of molecular oxygen to a substrate and reducing the other to water. The CYP2 clan includes D. melanogaster CYP18 and CYP303-307 family genes. CYP2 members have diverse roles and are widely considered as "environmental response genes" in mammalian species. (Adapted from FBrf0248421.)
Protein Function (UniProtKB)
Involved in the metabolism of insect hormones; responsible for ecdysteroid C25-hydroxylase activity. May be involved in the breakdown of synthetic insecticides.
(UniProt, Q9VWR5)
Phenotypic Description (Red Book; Lindsley and Zimm 1992)
exo: exocephalon
Sex-linked recessive lethal; variably differentiated cuticle; complete failure of head involution with well developed head structures on exterior of the embryo. Many embryos slightly twisted with defective ventral denticle patterns.
phm: phantom
Male lethal. Cuticle of lethal embryos not well differentiated and contracted posteriorly.
Gene Model and Products
Number of Transcripts
2
Number of Unique Polypeptides
1

Please see the JBrowse view of Dmel\phtm 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 Q9VWR5)

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 5.51

Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0074603
1997
574
FBtr0342846
2203
574
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
FBpp0074374
65.2
574
6.11
FBpp0309669
65.2
574
6.11
Polypeptides with Identical Sequences

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

574 aa isoforms: phtm-PA, phtm-PB
Additional Polypeptide Data and Comments
Reported size (kDa)
Comments
External Data
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\phtm 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).

-0.27

Transcript Expression
in situ
Stage
Tissue/Position (including subcellular localization)
Reference
dorsal ectoderm anlage

Comment: anlage in statu nascendi

mesoderm anlage

Comment: anlage in statu nascendi

ventral ectoderm anlage

Comment: anlage in statu nascendi

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

RT-PCR
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
Additional Descriptive Data
Marker for
 
Subcellular Localization
CV Term
Evidence
References
Expression Deduced from Reporters
High-Throughput Expression Data
Associated Tools

JBrowse - Visual display of RNA-Seq signals

View Dmel\phtm 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) 1-3
  • Stages(s) 4-6
  • Stages(s) 7-8
  • Stages(s) 9-10
  • Stages(s) 11-12
  • Stages(s) 13-16
Alleles, Insertions, Transgenic Constructs, and Aberrations
Classical and Insertion Alleles ( 20 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 13 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of phtm
Transgenic constructs containing regulatory region of phtm
Aberrations (Deficiencies and Duplications) ( 11 )
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
Orthologs
Human Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Homo sapiens (Human) (23)
5 of 14
Yes
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
3 of 14
No
No
3 of 14
No
No
2  
3 of 14
No
No
3 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
Yes
1 of 14
No
Yes
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) (46)
5 of 14
Yes
No
5 of 14
Yes
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Mus musculus (laboratory mouse) (54)
5 of 14
Yes
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Xenopus tropicalis (Western clawed frog) (51)
5 of 13
Yes
No
4 of 13
No
No
4 of 13
No
No
4 of 13
No
No
4 of 13
No
No
4 of 13
No
No
4 of 13
No
No
4 of 13
No
No
4 of 13
No
No
4 of 13
No
No
4 of 13
No
No
4 of 13
No
No
4 of 13
No
No
4 of 13
No
No
3 of 13
No
No
3 of 13
No
No
3 of 13
No
No
3 of 13
No
No
3 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
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No
No
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No
No
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No
No
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No
No
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No
No
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No
No
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No
No
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No
No
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No
No
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No
No
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No
No
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No
No
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No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
Yes
2 of 13
No
No
2 of 13
No
No
1 of 13
No
Yes
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
Danio rerio (Zebrafish) (50)
5 of 14
Yes
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
Yes
2 of 14
No
No
2 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
Caenorhabditis elegans (Nematode, roundworm) (45)
4 of 14
Yes
No
4 of 14
Yes
No
4 of 14
Yes
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Anopheles gambiae (African malaria mosquito) (13)
11 of 12
Yes
Yes
Arabidopsis thaliana (thale-cress) (150)
5 of 13
Yes
Yes
5 of 13
Yes
Yes
5 of 13
Yes
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
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
No
3 of 13
No
Yes
2 of 13
No
No
2 of 13
No
Yes
2 of 13
No
Yes
2 of 13
No
No
2 of 13
No
Yes
2 of 13
No
Yes
2 of 13
No
No
2 of 13
No
Yes
2 of 13
No
Yes
2 of 13
No
Yes
2 of 13
No
No
2 of 13
No
Yes
2 of 13
No
Yes
2 of 13
No
Yes
2 of 13
No
Yes
2 of 13
No
Yes
2 of 13
No
Yes
2 of 13
No
No
2 of 13
No
Yes
2 of 13
No
Yes
2 of 13
No
Yes
2 of 13
No
Yes
2 of 13
No
Yes
2 of 13
No
Yes
2 of 13
No
No
2 of 13
No
Yes
2 of 13
No
No
2 of 13
No
No
1 of 13
No
No
Saccharomyces cerevisiae (Brewer's yeast) (1)
1 of 13
Yes
No
Schizosaccharomyces pombe (Fission yeast) (0)
Escherichia coli (enterobacterium) (0)
Other Organism Orthologs (via OrthoDB)
Data provided directly from OrthoDB:phtm. Refer to their site for version information.
Paralogs
Paralogs (via DIOPT v9.1)
Drosophila melanogaster (Fruit fly) (9)
6 of 13
4 of 13
3 of 13
2 of 13
2 of 13
2 of 13
1 of 13
1 of 13
1 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 ( 1 )
    Modifiers Based on Experimental Evidence ( 0 )
    Allele
    Disease
    Interaction
    References
    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
    Summary of Genetic Interactions
    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
    Linkouts
    BioGRID - A database of protein and genetic interactions.
    DroID - A comprehensive database of gene and protein interactions.
    Pathways
    Signaling Pathways (FlyBase)
    Metabolic Pathways
    External Data
    Class of Gene
    Genomic Location and Detailed Mapping Data
    Chromosome (arm)
    X
    Recombination map
    1-60
    Cytogenetic map
    Sequence location
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    17D1-17D1
    Limits computationally determined from genome sequence between P{EP}EP443EP443&P{EP}BxEP1383 and P{EP}Pk17EEP438
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    Experimentally Determined Recombination Data
    Left of (cM)
    Right of (cM)
    Notes

    Map location of 1-64 is based on mapping of original phm alleles; map location of 1-58 corresponds to mapping based on phm alleles of the exocephalon class.

    Stocks and Reagents
    Stocks (10)
    Genomic Clones (18)
     

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

    cDNA Clones (140)
     

    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

        phm encodes a ecdysteroid 25-hydroxylase that catalyzes the conversion of 2,22,25-trideoxyecdysone (3-beta,5-beta-ketodiol) to 2,22-dideoxyecdysone (3-beta-5-beta-ketotriol) in S2 cells.

        Six EMS induced alleles have been identified in a screen for mutations affecting commissure formation in the CNS of the embryo.

        Muscle phenotype of mutants studied using polarised light microscopy and antibody staining to detect Mhc-lacZ reporter gene expression in muscles.

        A screen for X-linked genes that affect embryo morphology revealed phm.

        phm mutants display a posterior contraction and poorly differentiated cuticle.

        Relationship to Other Genes
        Source for database merge of

        Source for merge of: phm Cyp306a1

        Additional comments

        Source for merge of phm Cyp306a1 was sequence comparison ( date:040503 ).

        Existence of five alleles stated but no individual designations given.

        Nomenclature History
        Source for database identify of

        Source for identity of: phtm phm

        Nomenclature comments

        Changed gene symbol 'phm' to 'phtm' to eliminate the case-insensitive duplication with the 'Phm' gene symbol, which is the widely used abbreviation for 'Peptidylglycine-alpha-hydroxylating monooxygenase' across species (see FBrf0092591).

        Etymology
        Synonyms and Secondary IDs (14)
        Reported As
        Symbol Synonym
        phm
        (Gallois et al., 2024, Liu et al., 2024, Zhang et al., 2024, Shimell and O'Connor, 2023, Sun et al., 2023, Carlson et al., 2022, Gupta et al., 2022, Khalid et al., 2022, Ohhara et al., 2022, Heredia et al., 2021, Higareda Alvear et al., 2021, Kannangara et al., 2021, Keith et al., 2021, Pan and O'Connor, 2021, Sood et al., 2021, Tu et al., 2021, Zhao et al., 2021, Cho et al., 2020, Cruz et al., 2020, Haudry et al., 2020, Huynh et al., 2020, Kannangara et al., 2020, Koyama et al., 2020, Scanlan et al., 2020, Zeng et al., 2020, Swevers, 2019, Huynh et al., 2018, Ignesti et al., 2018, Setiawan et al., 2018, Shimell et al., 2018, Uryu et al., 2018, Zeng et al., 2018, Casas-Tintó et al., 2017, Christesen et al., 2017, Kaieda et al., 2017, Transgenic RNAi Project members, 2017-, Di Cara and King-Jones, 2016, Sánchez-Higueras and Hombría, 2016, Sandler and Stathopoulos, 2016, Valzania et al., 2016, Borsos et al., 2015, Deady et al., 2015, Komura-Kawa et al., 2015, Xie et al., 2015, Chanut-Delalande et al., 2014, Claudius et al., 2014, Danielsen et al., 2014, Domanitskaya et al., 2014, Good et al., 2014, Koyama et al., 2014, Neuman et al., 2014, Aleksic et al., 2013, Deng and Kerppola, 2013, Saunders et al., 2013, Colombani et al., 2012, Gangishetti et al., 2012, Garelli et al., 2012, Guittard et al., 2011, Itoh et al., 2011, Mrinal et al., 2011, Niwa et al., 2011, Ou et al., 2011, Ozdemir et al., 2011, Chavoshi et al., 2010, Nagoshi et al., 2010, Pankotai et al., 2010, Xiang et al., 2010, Huang et al., 2008, Layalle et al., 2008, Talamillo et al., 2008, McBrayer et al., 2007, Orengo and Aguade, 2007, Sandmann et al., 2007, Ono et al., 2006, Warren et al., 2006, Stathopoulos and Levine, 2005)
        Secondary FlyBase IDs
        • FBgn0000613
        • FBgn0003080
        • FBgn0030948
        Datasets (0)
        Study focus (0)
        Experimental Role
        Project
        Project Type
        Title
        Study result (0)
        Result
        Result Type
        Title
        External Crossreferences and Linkouts ( 66 )
        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/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)
        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)
        KEGG Metabolic Pathways - A collection of manually drawn metabolic pathway maps representing knowledge of molecular interaction, reaction and relation networks.
        KEGG Pathways - A collection of manually drawn pathway maps representing knowledge of molecular interaction, reaction and relation networks.
        References (199)