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Aliases for FNDC5 Gene

Aliases for FNDC5 Gene

  • Fibronectin Type III Domain Containing 5 2 3
  • FRCP2 3 4 6
  • Fibronectin Type III Repeat-Containing Protein 2 3 4
  • Irisin 2 3
  • Fibronectin Type III Domain-Containing Protein 5 3

External Ids for FNDC5 Gene

Previous GeneCards Identifiers for FNDC5 Gene

  • GC01M032996
  • GC01M033100
  • GC01M033327
  • GC01M031443

Summaries for FNDC5 Gene

Entrez Gene Summary for FNDC5 Gene

  • This gene encodes a secreted protein that is released from muscle cells during exercise. The encoded protein may participate in the development of brown fat. Translation of the precursor protein initiates at a non-AUG start codon at a position that is conserved as an AUG start codon in other organisms. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2013]

GeneCards Summary for FNDC5 Gene

FNDC5 (Fibronectin Type III Domain Containing 5) is a Protein Coding gene. GO annotations related to this gene include hormone activity. An important paralog of this gene is FNDC4.

UniProtKB/Swiss-Prot for FNDC5 Gene

  • Irisin: Contrary to mouse, may not be involved in the beneficial effects of muscular exercise, nor in the induction of browning of human white adipose tissue.

No data available for Tocris Summary , Gene Wiki entry , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for FNDC5 Gene

Genomics for FNDC5 Gene

Regulatory Elements for FNDC5 Gene

Genomic Location for FNDC5 Gene

32,862,268 bp from pter
32,872,492 bp from pter
10,225 bases
Minus strand

Genomic View for FNDC5 Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for FNDC5 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for FNDC5 Gene

Proteins for FNDC5 Gene

  • Protein details for FNDC5 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Fibronectin type III domain-containing protein 5
    Protein Accession:
    Secondary Accessions:
    • A6NMC9
    • D3DPQ6
    • Q6P6D9
    • Q7Z676

    Protein attributes for FNDC5 Gene

    212 amino acids
    Molecular mass:
    23659 Da
    Quaternary structure:
    No Data Available

    Three dimensional structures from OCA and Proteopedia for FNDC5 Gene

    Alternative splice isoforms for FNDC5 Gene


neXtProt entry for FNDC5 Gene

Proteomics data for FNDC5 Gene at MOPED

Post-translational modifications for FNDC5 Gene

Other Protein References for FNDC5 Gene

No data available for DME Specific Peptides for FNDC5 Gene

Domains for FNDC5 Gene

Gene Families for FNDC5 Gene

  • FN3 :Fibronectin type III domain containing

Protein Domains for FNDC5 Gene


Suggested Antigen Peptide Sequences for FNDC5 Gene

GenScript: Design optimal peptide antigens:

Graphical View of Domain Structure for InterPro Entry



  • Q8NAU1
  • Contains 1 fibronectin type-III domain.
genes like me logo Genes that share domains with FNDC5: view

Function for FNDC5 Gene

Molecular function for FNDC5 Gene

UniProtKB/Swiss-Prot Function: Irisin: Contrary to mouse, may not be involved in the beneficial effects of muscular exercise, nor in the induction of browning of human white adipose tissue.
UniProtKB/Swiss-Prot Induction: Has been shown to be up-regulated some twofold by muscular exercise at the mRNA and protein level; this effect has been suggested to be mediated by PPARGC1A (PubMed:22237023). However, up-regulation upon exercise could not be reproduced, at least not at the mRNA level (PubMed:24040023).

Gene Ontology (GO) - Molecular Function for FNDC5 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0003674 molecular_function ND --
GO:0005179 hormone activity IEA --
GO:0005515 protein binding --
genes like me logo Genes that share ontologies with FNDC5: view

Phenotypes for FNDC5 Gene

GenomeRNAi human phenotypes for FNDC5:
genes like me logo Genes that share phenotypes with FNDC5: view

No data available for Enzyme Numbers (IUBMB) , Animal Models , miRNA , Transcription Factor Targeting and HOMER Transcription for FNDC5 Gene

Localization for FNDC5 Gene

Subcellular locations from UniProtKB/Swiss-Prot for FNDC5 Gene

Cell membrane; Single-pass type I membrane protein. Peroxisome membrane; Single-pass type I membrane protein. Note=Imported in peroxisomes through the PEX5 receptor pathway. {ECO:0000250}.
Irisin: Secreted. Note=Detected in the blood of individuals subjected to endurance exercise. {ECO:0000269 PubMed:22237023}.

Subcellular locations from

Jensen Localization Image for FNDC5 Gene COMPARTMENTS Subcellular localization image for FNDC5 gene
Compartment Confidence
extracellular 5
peroxisome 5
plasma membrane 5
endoplasmic reticulum 4
cytosol 1
mitochondrion 1

Gene Ontology (GO) - Cellular Components for FNDC5 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005576 extracellular region ISS --
GO:0005777 peroxisome --
GO:0005778 peroxisomal membrane IEA --
GO:0005783 endoplasmic reticulum ISS --
GO:0005886 plasma membrane ISS --
genes like me logo Genes that share ontologies with FNDC5: view

Pathways for FNDC5 Gene

SuperPathways for FNDC5 Gene

No Data Available

Interacting Proteins for FNDC5 Gene

STRING Interaction Network Preview (showing 1 interactants - click image to see details)
Selected Interacting proteins: ENSP00000362570 Q8NAU1-FNDC5_HUMAN for FNDC5 Gene via STRING I2D

Gene Ontology (GO) - Biological Process for FNDC5 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0008150 biological_process ND --
GO:0014850 response to muscle activity ISS --
GO:0090336 positive regulation of brown fat cell differentiation ISS --
genes like me logo Genes that share ontologies with FNDC5: view

No data available for Pathways by source for FNDC5 Gene

Transcripts for FNDC5 Gene

Unigene Clusters for FNDC5 Gene

Fibronectin type III domain containing 5:
Representative Sequences:

Alternative Splicing Database (ASD) splice patterns (SP) for FNDC5 Gene

ExUns: 1 ^ 2a · 2b ^ 3 ^ 4 ^ 5 ^ 6a · 6b · 6c ^ 7a · 7b · 7c
SP1: -
SP2: - - - -
SP3: - -
SP4: - -

Relevant External Links for FNDC5 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for FNDC5 Gene

mRNA expression in normal human tissues for FNDC5 Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

mRNA differential expression in normal tissues according to GTEx for FNDC5 Gene

This gene is overexpressed in Muscle - Skeletal (10.3), Brain - Cerebellum (5.3), Heart - Left Ventricle (4.3), and Brain - Cerebellar Hemisphere (4.2).

SOURCE GeneReport for Unigene cluster for FNDC5 Gene Hs.524234

mRNA Expression by UniProt/SwissProt for FNDC5 Gene

Tissue specificity: Widely expressed, with highest levels in heart. Very low expression, if any, in colon, pancreas and spleen.
genes like me logo Genes that share expressions with FNDC5: view

No data available for Protein expression for FNDC5 Gene

Orthologs for FNDC5 Gene

This gene was present in the common ancestor of chordates.

Orthologs for FNDC5 Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia FNDC5 36
  • 100 (a)
(Bos Taurus)
Mammalia FNDC5 36
  • 45 (a)
(Canis familiaris)
Mammalia FNDC5 35
  • 92.52 (n)
  • 95.61 (a)
FNDC5 36
  • 61 (a)
(Mus musculus)
Mammalia Fndc5 35
  • 90.59 (n)
  • 98.56 (a)
Fndc5 16
Fndc5 36
  • 66 (a)
(Monodelphis domestica)
Mammalia FNDC5 36
  • 61 (a)
(Ornithorhynchus anatinus)
Mammalia FNDC5 36
  • 57 (a)
(Rattus norvegicus)
Mammalia Fndc5 35
  • 92.19 (n)
  • 98.56 (a)
(Gallus gallus)
Aves FNDC5 35
  • 82.17 (n)
  • 91.98 (a)
FNDC5 36
  • 53 (a)
(Anolis carolinensis)
Reptilia FNDC5 36
  • 30 (a)
(Danio rerio)
Actinopterygii fndc5a 35
  • 71.82 (n)
  • 74.23 (a)
fndc5a 36
  • 53 (a)
fndc5b 36
  • 52 (a)
Species with no ortholog for FNDC5:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • fruit fly (Drosophila melanogaster)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rainbow trout (Oncorhynchus mykiss)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea squirt (Ciona intestinalis)
  • sea squirt (Ciona savignyi)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • tropical clawed frog (Silurana tropicalis)
  • wheat (Triticum aestivum)
  • worm (Caenorhabditis elegans)

Evolution for FNDC5 Gene

Gene Tree for FNDC5 (if available)
Gene Tree for FNDC5 (if available)

Paralogs for FNDC5 Gene

Paralogs for FNDC5 Gene

Selected SIMAP similar genes for FNDC5 Gene using alignment to 1 proteins:

genes like me logo Genes that share paralogs with FNDC5: view

Variants for FNDC5 Gene

Sequence variations from dbSNP and Humsavar for FNDC5 Gene

SNP ID Clin Chr 01 pos Sequence Context AA Info Type MAF
rs3480 -- 32,862,564(+) TCATT(A/G)GGTGA utr-variant-3-prime
rs726344 -- 32,867,503(+) CTTCT(A/G)AGGGA intron-variant
rs1284368 -- 32,864,831(+) GCCAG(A/G)GCCTG intron-variant
rs1284369 -- 32,865,326(+) actcc(C/T)gacct intron-variant
rs1284370 -- 32,865,368(+) tgctg(G/T)gatta intron-variant

Structural Variations from Database of Genomic Variants (DGV) for FNDC5 Gene

Variant ID Type Subtype PubMed ID
nsv516302 CNV Loss 19592680

Relevant External Links for FNDC5 Gene

HapMap Linkage Disequilibrium report

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for FNDC5 Gene

Disorders for FNDC5 Gene

No disorders were found for FNDC5 Gene.

No data available for UniProtKB/Swiss-Prot for FNDC5 Gene

Publications for FNDC5 Gene

  1. A PGC1-alpha-dependent myokine that drives brown-fat-like development of white fat and thermogenesis. (PMID: 22237023) Bostrom P. … Spiegelman B.M. (Nature 2012) 2 3 4
  2. Frcp1 and Frcp2, two novel fibronectin type III repeat containing genes. (PMID: 12384288) Teufel A. … Westphal H. (Gene 2002) 2 3
  3. Complete sequencing and characterization of 21,243 full-length human cDNAs. (PMID: 14702039) Ota T. … Sugano S. (Nat. Genet. 2004) 3 4
  4. Evidence against a Beneficial Effect of Irisin in Humans. (PMID: 24040023) Raschke S. … Eckel J. (PLoS ONE 2013) 3 4
  5. Exercise induces hippocampal BDNF through a PGC-1I+/FNDC5 pathway. (PMID: 24120943) Wrann C.D. … Spiegelman B.M. (Cell Metab. 2013) 2 3

Products for FNDC5 Gene

Sources for FNDC5 Gene

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