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General Information
Symbol
Dmel\Fkbp12
Species
D. melanogaster
Name
FK506-binding protein 12kD
Annotation Symbol
CG11001
Feature Type
FlyBase ID
FBgn0013954
Gene Model Status
Stock Availability
Enzyme Name (EC)
Peptidylprolyl isomerase (5.2.1.8)
Gene Summary
FK506-binding protein 12kD (Fkbp12) encodes a protein that binds the intracellular calcium channel encoded by RyR in an oxidation dependent manner. Loss of the binding between the products of Fkbp12 and RyR results in increased calcium leak and reduced muscle function. [Date last reviewed: 2019-03-21] (FlyBase Gene Snapshot)
Also Known As

FK506-bp2, FK506-binding protein 2

Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
2-88
RefSeq locus
NT_033778 REGION:19290109..19290962
Sequence
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
GO Summary Ribbons
Gene Ontology (GO) Annotations (7 terms)
Molecular Function (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
inferred from sequence or structural similarity with UniProtKB:P62942
inferred from biological aspect of ancestor with PANTHER:PTN000054102
(assigned by GO_Central )
Biological Process (2 terms)
Terms Based on Experimental Evidence (0 terms)
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN000054102
(assigned by GO_Central )
inferred from biological aspect of ancestor with PANTHER:PTN000054102
(assigned by GO_Central )
inferred from sequence or structural similarity with UniProtKB:P62942
Cellular Component (3 terms)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
located_in plasma membrane
inferred from high throughput direct assay
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
is_active_in cytoplasm
inferred from biological aspect of ancestor with PANTHER:PTN000054102
(assigned by GO_Central )
located_in cytosol
inferred from sequence or structural similarity with UniProtKB:P62942
Gene Group (FlyBase)
Protein Family (UniProt)
Belongs to the FKBP-type PPIase family. FKBP1 subfamily. (P48375)
Catalytic Activity (EC)
Experimental Evidence
-
Predictions / Assertions
Peptidylproline (omega=180) = peptidylproline (omega=0) (5.2.1.8)
Summaries
Gene Snapshot
FK506-binding protein 12kD (Fkbp12) encodes a protein that binds the intracellular calcium channel encoded by RyR in an oxidation dependent manner. Loss of the binding between the products of Fkbp12 and RyR results in increased calcium leak and reduced muscle function. [Date last reviewed: 2019-03-21]
Gene Group (FlyBase)
FK506-BINDING PROTEINS -
FK506-binding proteins are a class of evolutionary conserved peptidyl prolyl cis/trans isomerases. In vertebrates, they form binary complexes with their ligand, FK506 or rapamycin, and are involved in key biochemical processes including protein folding, receptor signalling, protein trafficking, and transcription. FK506-binding proteins are characterized by the presence of a 'FKBP-type peptidyl-prolyl cis-trans isomerase domain' (IPR001179). (Adapted from PMID:25986569.)
Protein Function (UniProtKB)
PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. Binds to ligand-free TGF beta type I receptor, from which it is released upon a ligand-induced, type II receptor mediated phosphorylation of the type I receptor. Binding is inhibitory to the signaling pathways of the TGF beta family ligands.
(UniProt, P48375)
Gene Model and Products
Number of Transcripts
1
Number of Unique Polypeptides
1

Please see the JBrowse view of Dmel\Fkbp12 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 New Section
Protein 3D structure   (Predicted by AlphaFold)   (AlphaFold entry P48375)

If you don't see the viewer to the right, 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.

Comments on Gene Model

Gene model reviewed during 5.44

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)
FBtr0086515
633
108
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
RefSeq ID
GenBank
FBpp0085703
11.7
108
8.46
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
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\Fkbp12 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
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

In the synsytial embryo Fkbp12 mRNA is expressed in the cytoplasm. At cellular blastoderm it is located in the inner limits of the blastoderm cells and is higher in the anterior region of the embryo than at the posterior region. Later expression is mainly in the developing gut and in muscle.

Expression pattern inferred from unspecified enhancer trap line.

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

In the syncytial blastoderm embryo, Fkbp12 protein localizes mainly to the aneterior and posterior poles. In the cellular blastoderm, staining is mainly in the cortex. It is concentrated in the basal-cell layer zone and aggregated in the basement membrane. At germ band extension, Fkbp12 is mainly expressed in neuroblasts, stomodeum, and the developing gut. At later stages, expression is in the brain, supraesophageal ganglion, ventral nervous system, midgut, and posterior midgut rudiment. At late gastrulation, expression is continuously detected in the digestive, muscular, and nervous systems including the mouth hook. head muscle, pharyngeal musculature, brain supraesophageal ganglion, subesophageal ganglion, ventral nervous system, proventriculus, midgut, and salivary gland.

FK506-bp2 protein is detected in stage 8 egg chambers in follicle cells and nurse cells and at lower levels in oocytes.

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

GBrowse - Visual display of RNA-Seq signals

View Dmel\Fkbp12 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
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
Alleles, Insertions, Transgenic Constructs, and Aberrations
Classical and Insertion Alleles ( 7 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 6 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of Fkbp12
Transgenic constructs containing regulatory region of Fkbp12
Aberrations (Deficiencies and Duplications) ( 1 )
Inferred from experimentation ( 1 )
Gene disrupted in
Inferred from location ( 0 )
Alleles Representing Disease-Implicated Variants
Phenotypes
Orthologs
Human Orthologs (via DIOPT v8.0)
Homo sapiens (Human) (16)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
12 of 15
Yes
Yes
1  
12 of 15
Yes
Yes
5 of 15
No
Yes
2 of 15
No
No
2 of 15
No
Yes
2 of 15
No
No
2 of 15
No
No
2 of 15
No
Yes
1 of 15
No
No
1  
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1  
1 of 15
No
No
1 of 15
No
No
1  
1 of 15
No
No
1  
Model Organism Orthologs (via DIOPT v8.0)
Mus musculus (laboratory mouse) (14)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
12 of 15
Yes
Yes
12 of 15
Yes
Yes
2 of 15
No
No
2 of 15
No
Yes
2 of 15
No
No
2 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
Rattus norvegicus (Norway rat) (11)
11 of 13
Yes
Yes
9 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
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
Xenopus tropicalis (Western clawed frog) (12)
6 of 12
Yes
Yes
2 of 12
No
Yes
1 of 12
No
Yes
1 of 12
No
No
1 of 12
No
No
1 of 12
No
No
1 of 12
No
No
1 of 12
No
No
1 of 12
No
No
1 of 12
No
No
1 of 12
No
No
1 of 12
No
No
Danio rerio (Zebrafish) (15)
13 of 15
Yes
Yes
12 of 15
No
Yes
8 of 15
No
Yes
2 of 15
No
No
2 of 15
No
No
2 of 15
No
No
1 of 15
No
Yes
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
Caenorhabditis elegans (Nematode, roundworm) (8)
13 of 15
Yes
Yes
7 of 15
No
Yes
3 of 15
No
No
2 of 15
No
No
2 of 15
No
No
2 of 15
No
Yes
1 of 15
No
No
1 of 15
No
No
Arabidopsis thaliana (thale-cress) (7)
3 of 9
Yes
Yes
2 of 9
No
Yes
1 of 9
No
No
1 of 9
No
No
1 of 9
No
No
1 of 9
No
Yes
1 of 9
No
No
Saccharomyces cerevisiae (Brewer's yeast) (4)
13 of 15
Yes
Yes
2 of 15
No
No
2 of 15
No
No
2 of 15
No
No
Schizosaccharomyces pombe (Fission yeast) (2)
11 of 12
Yes
Yes
1 of 12
No
No
Other Organism Orthologs (via OrthoDB)
Paralogs
Paralogs (via DIOPT v8.0)
Drosophila melanogaster (Fruit fly) (7)
4 of 10
3 of 10
3 of 10
2 of 10
2 of 10
1 of 10
1 of 10
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
    Disease Associations of Human Orthologs (via DIOPT v8.0 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
    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
    FlyMet - A comprehensive tissue-specific metabolomics resource for Drosophila.
    External Data
    Linkouts
    Genomic Location and Detailed Mapping Data
    Chromosome (arm)
    2R
    Recombination map
    2-88
    Cytogenetic map
    Sequence location
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    56C8-56C8
    Limits computationally determined from genome sequence between P{PZ}ena02029&P{lacW}corak08713 and P{lacW}htsk06121
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    Experimentally Determined Recombination Data
    Location
    Left of (cM)
    Right of (cM)
    Notes
    Stocks and Reagents
    Stocks (8)
    Genomic Clones (17)
     

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

    cDNA Clones (152)
     

    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 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
    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: FK506-bp2 CG11001

    Source for identity of: Fkbp12 FK506-bp2

    Source for database merge of
    Additional comments
    Other Comments

    Identification: Yeast two hybrid screen for proteins that interact with the dpp type I receptor tkv.

    Origin and Etymology
    Discoverer
    Etymology
    Identification
    External Crossreferences and Linkouts ( 43 )
    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
    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
    Drosophila Genomics Resource Center - Drosophila Genomics Resource Center (DGRC) cDNA clones
    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
    Eukaryotic Promoter Database - A collection of databases of experimentally validated promoters for selected model organisms.
    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
    FlyMet - A comprehensive tissue-specific metabolomics resource for Drosophila.
    GenomeRNAi - A database for cell-based and in vivo RNAi phenotypes and reagents
    iBeetle-Base - RNAi phenotypes in the red flour beetle (Tribolium castaneum)
    KEGG Genes - Molecular building blocks of life in the genomic space.
    MARRVEL_MODEL - MARRVEL (model organism gene)
    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
    FlyCyc Genes - Genes from a BioCyc PGDB for Dmel
    FlyMine - An integrated database for Drosophila genomics
    MIST (protein-protein) - An integrated Molecular Interaction Database
    Synonyms and Secondary IDs (18)
    Datasets (8)
    Study focus (0)
    Experimental Role
    Project
    Project Type
    Title
    Study result (8)
    Result
    Result Type
    Title
    Clustering analysis of hemocytes from non-infested third instar larvae
    Clustering analysis of hemocytes from wasp-infested third instar larvae
    Clustering analysis of lymph gland cells from non-infested larvae at 72 h after egg-laying
    Clustering analysis of lymph gland cells from non-infested larvae at 96 h after egg-laying
    Clustering analysis of lymph gland cells from non-infested larvae at 120 h after egg-laying
    Clustering analysis of lymph gland cells from wasp-infested larvae at 96 h after egg-laying
    Clustering analysis of circulating hemocytes from non-infested larvae at 96 h after egg-laying
    Clustering analysis of circulating hemocytes from non-infested larvae at 120 h after egg-laying
    References (67)