Gene Information
Gene NameFNDC5
OrganismHomo sapiens (Human)
Gene Length212
Protein NamesFibronectin type III domain-containing protein 5 (Fibronectin type III repeat-containing protein 2) [Cleaved into: Irisin]
Target NameNA
Target TypeNA
Gene Age645 ( ENSG00000160097 )
Evolutionary StageVertebrata
AlphaFoldDBQ8NAU1
Gene CardFNDC5
Uniprot IDQ8NAU1
PfamPF16066; PF00041
In ASDno
Allosteric Predictionno (-0.732883913)
Ortholog in AnimalsAlpaca_ FNDC5 ( ortholog_one2one )
Dog_ FNDC5 ( ortholog_one2one )
GuineaPig_ FNDC5 ( ortholog_one2one )
Macaque_ FNDC5 ( ortholog_one2one )
Mouse_ Fndc5 ( ortholog_one2one )
Pig_ FNDC5 ( ortholog_one2one )
Rat_ Fndc5 ( ortholog_one2one )
Rabbit_ FNDC5 ( ortholog_one2one )
OhnologsNA
ParalogsFNDC4
Tissueskeletal.muscle, heart, ovary
Tissue SpecificityWidely expressed, with highest levels in heart. Very low expression, if any, in colon, pancreas and spleen. {ECO:0000269|PubMed:24040023}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 4LSD  (X-ray  2.28A 
DBSNP NA 
Subcellular location [CC]Cell membrane {ECO:0000269|PubMed:22237023};
Single-pass type I membrane protein {ECO:0000269|PubMed:22237023}. Peroxisome membrane {ECO:0000250};
Single-pass type I membrane protein {ECO:0000250}. 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}.
Mouse PG classificationNA
click here to return to the previous page