FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Gene: Dmel\Phm
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General Information
Symbol
Dmel\Phm
Species
D. melanogaster
Name
Peptidylglycine-α-hydroxylating monooxygenase
Annotation Symbol
CG3832
Feature Type
FlyBase ID
FBgn0283509
Gene Model Status
Stock Availability
Enzyme Name (EC)
peptidylglycine monooxygenase (1.14.17.3)
Gene Summary
Peptidylglycine-α-hydroxylating monooxygenase (Phm) encodes a hydroxylating monooxygenase, dedicated to the regulated secretory pathway and critical for proper neuropeptide biosynthesis. It promotes the potency and stability of secreted neuropeptides via C-terminal amidation. [Date last reviewed: 2019-09-26] (FlyBase Gene Snapshot)
Also Known As

dPHM

Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
2-105
RefSeq locus
NT_033778 REGION:23985175..23988455
Sequence
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
Gene Ontology (GO) Annotations (14 terms)
Molecular Function (6 terms)
Terms Based on Experimental Evidence (2 terms)
CV Term
Evidence
References
Terms Based on Predictions or Assertions (4 terms)
CV Term
Evidence
References
Biological Process (5 terms)
Terms Based on Experimental Evidence (4 terms)
CV Term
Evidence
References
involved_in insemination
inferred from high throughput expression pattern
involved_in memory
inferred from mutant phenotype
inferred from mutant phenotype
involved_in response to fungus
inferred from high throughput expression pattern
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
inferred from electronic annotation with InterPro:IPR000720
Cellular Component (3 terms)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
inferred from high throughput direct assay
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN000840899
located_in membrane
inferred from electronic annotation with InterPro:IPR000720
Protein Family (UniProt)
Belongs to the copper type II ascorbate-dependent monooxygenase family. (O01404)
Catalytic Activity (EC/Rhea)
peptidylglycine monooxygenase activity
a [peptide]-C-terminal glycine + 2 L-ascorbate + O2 = a [peptide]-C- terminal (2S)-2-hydroxyglycine + 2 monodehydro-L-ascorbate radical + H2O (1.14.17.3)
RHEA 21452:
Summaries
Gene Snapshot
Peptidylglycine-α-hydroxylating monooxygenase (Phm) encodes a hydroxylating monooxygenase, dedicated to the regulated secretory pathway and critical for proper neuropeptide biosynthesis. It promotes the potency and stability of secreted neuropeptides via C-terminal amidation. [Date last reviewed: 2019-09-26]
Gene Group (FlyBase)
MONOOXYGENASES, REDUCED ASCORBATE AS ONE DONOR -
Monooxygenases, reduced ascorbate as one donor include dehydrogenases that catalyze an oxidation-reduction (redox) reaction in which hydrogen or electrons are transferred from reduced ascorbate and one other donor, and one atom of oxygen is incorporated into one donor.
Protein Function (UniProtKB)
Monooxygenase that catalyzes an essential reaction in C-terminal alpha-amidation of peptides. Produces an unstable peptidyl(2-hydroxyglycine) intermediate. C-terminal amidation of peptides is required for normal developmental transitions and for biosynthesis of secretory peptides throughout the life.
(UniProt, O01404)
Phenotypic Description (Red Book; Lindsley and Zimm 1992)
ll: lanceolate
Wings narrowed at tips and slightly divergent. Eyes slightly smaller than normal and bulging; head narrow. Waddington finds wing effect detectable in middle pupal stage. RK3.
ll2
thumb
ll2: lanceolate-2
Edith M. Wallace, unpublished.
Wings pointed and narrow. Eyes small and bulging. Head narrow. Wing shape first seen in early contraction stage of wing development (23-hr pupa at 25) (Waddington, 1939, Proc. Nat. Acad. Sci. USA 25: 303). More extreme and more useful than ll. RK2.
Summary (Interactive Fly)

an enzyme involved in producing amidated neuropeptides - amidated secretory peptides are required for signaling events that ensure progression through several critical developmental transitions

Gene Model and Products
Number of Transcripts
2
Number of Unique Polypeptides
1

Please see the JBrowse view of Dmel\Phm 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 O01404)

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

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

Gene model reviewed during 5.52

Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0072203
1603
365
FBtr0072202
1439
365
Additional Transcript Data and Comments
Reported size (kB)

1.7 (northern blot)

Comments
External Data
Crossreferences
Polypeptide Data
Annotated Polypeptides
Name
FlyBase ID
Predicted MW (kDa)
Length (aa)
Theoretical pI
UniProt
RefSeq ID
GenBank
FBpp0072112
40.6
365
6.04
FBpp0072111
40.6
365
6.04
Polypeptides with Identical Sequences

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

365 aa isoforms: Phm-PA, Phm-PB
Additional Polypeptide Data and Comments
Reported size (kDa)

365 (aa); 35 (kD observed)

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\Phm using the Feature Mapper tool.

External Data
Crossreferences
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).

-0.33

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

Comment: maternally deposited

Additional Descriptive Data

Phm transcript is expressed at a moderate level in the CNS of late stage embryos. Phm transcript is also expressed in dimm-positive neurons in adults.

Prominent Phm staining is observed in the larval CNS in the T1-T3 dorsal and ventral neurons and in lateral neurons. Co-expression with nemy is seen in many lateral and ventral nerve cord cells as well as in A8 pair cells.

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

Phm is expressed in a series of lateral abdominal neurons, and in some insulin-like producing cells (IPCs).

Co-localisation of Phm and ScerGAL4dimm-929 is observed in most of the Phm-positive neurons of the central nervous system, corpus cardiacum, midgut cells, peritracheal cells and lateral Kolbchen lbd neurons. Weakly stained Phm-positive neurons do not express ScerGAL4dimm-929.

Phm protein is detected throughout all levels of the larval CNS as well as in other tissues, including the endocrine glands and the gut. Staining is observed in the cell bodies and in the neuropil of the brain. Staining is also prevalent in secretory cells of the ring gland, salivary gland, and in diverse cells in all levels of the midgut. In the CNS, several strongly staining cells were identified as neuroendocrine neurons. Many Phm-positive neurons were shown to be peptidergic cells.

Marker for
Subcellular Localization
CV Term
Evidence
References
inferred from high throughput direct assay
Expression Deduced from Reporters
High-Throughput Expression Data
Associated Tools

JBrowse - Visual display of RNA-Seq signals

View Dmel\Phm 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
Images
Alleles, Insertions, Transgenic Constructs, and Aberrations
Classical and Insertion Alleles ( 7 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 7 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of Phm
Transgenic constructs containing regulatory region of Phm
Aberrations (Deficiencies and Duplications) ( 21 )
Variants
Variant Molecular Consequences
Alleles Representing Disease-Implicated Variants
Phenotypes
Orthologs
Human Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Homo sapiens (Human) (4)
4 of 14
Yes
No
1 of 14
No
No
1 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) (4)
4 of 14
Yes
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Mus musculus (laboratory mouse) (4)
4 of 14
Yes
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Xenopus tropicalis (Western clawed frog) (2)
2 of 13
Yes
No
1 of 13
No
No
Danio rerio (Zebrafish) (4)
3 of 14
Yes
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Caenorhabditis elegans (Nematode, roundworm) (5)
13 of 14
Yes
Yes
3 of 14
No
No
2 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Anopheles gambiae (African malaria mosquito) (9)
12 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:Phm. Refer to their site for version information.
Paralogs
Paralogs (via DIOPT v9.1)
Drosophila melanogaster (Fruit fly) (6)
5 of 13
4 of 13
1 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 ( 0 )
    Human Ortholog
    Disease
    Evidence
    References
    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
    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)
    2R
    Recombination map
    2-105
    Cytogenetic map
    Sequence location
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    60A16-60A16
    Limits computationally determined from genome sequence between P{EP}TalEP489&P{EP}CG3065EP316 and P{lacW}Phmk07623&P{lacW}tsrk05633
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    60A12-60A16
    60B1-60B2
    (determined by in situ hybridisation)
    60A12-60A16
    (determined by in situ hybridisation)
    Experimentally Determined Recombination Data
    Location

    2-106.7

    Left of (cM)
    Right of (cM)
    Notes
    Stocks and Reagents
    Stocks (10)
    Genomic Clones (15)
     

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

    cDNA Clones (121)
     

    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)
      RNAi and Array Information
      Linkouts
      Antibody Information
      Laboratory Generated Antibodies
       
      Commercially Available Antibodies
       
      Cell Line Information
      Publicly Available Cell Lines
       
        Other Stable Cell Lines
         
          Other Comments

          Phm is required for peptide α-amidating activity throughout the life of Drosophila.

          Genetic combinations with mutants of nub cause additive phenotypes.

          Relationship to Other Genes
          Source for database merge of

          Source for merge of: Phm ll

          Additional comments
          Nomenclature History
          Source for database identify of

          Source for identity of: Phm CG3832

          Nomenclature comments
          Etymology
          Synonyms and Secondary IDs (14)
          Reported As
          Name Synonyms
          Peptidyl gycine α hydroxylating monooxygenase
          Peptidylglycine-alpha-hydroxylating monooxygenase
          Peptidylglycine-α-hydroxylating monooxygenase
          lanceolate
          lanceolote
          peptidylglycine α-hydroxylating monooxygenase
          peptidylglycine-α-hydroxylating monooxygenase
          Secondary FlyBase IDs
          • FBgn0019948
          • FBgn0002554
          Datasets (0)
          Study focus (0)
          Experimental Role
          Project
          Project Type
          Title
          Study result (0)
          Result
          Result Type
          Title
          External Crossreferences and Linkouts ( 56 )
          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
          KEGG Genes - Molecular building blocks of life in the genomic space.
          MARRVEL_MODEL - MARRVEL (model organism gene)
          Linkouts
          Drosophila Genomics Resource Center - Drosophila Genomics Resource Center (DGRC) cDNA clones
          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
          iBeetle-Base - RNAi phenotypes in the red flour beetle (Tribolium castaneum)
          Interactive Fly - A cyberspace guide to Drosophila development and metazoan evolution
          MIST (protein-protein) - An integrated Molecular Interaction Database
          References (112)