Daf-14
{{More citations needed|date=July 2020}}
{{Infobox nonhuman protein
| Name = MH2 domain-containing protein
| image =
| width =
| caption =
| Organism = Caenorhabditis elegans
| TaxID = 6239
| Symbol = daf-14
| AltSymbols =
| EntrezGene = 177908
| HomoloGene =
| PDB =
| RefSeqmRNA = NM_001268546.3
| RefSeqProtein = NP_001255475.1
| UniProt = G5EEP2
| Chromosome = IV
| EntrezChromosome = NC_003282.8
| GenLoc_start = 10250646
| GenLoc_end = 10255844
}}
The DAF-14 is a gene of the nematode Caenorhabditis elegans encoding a R-SMAD protein of TGF-beta signaling pathway, which will be phosphorylated and forms a heterodimer with phosphorylated daf-8 when the TGF-β ligand daf-7 binds to the TGF-β receptors daf-1/daf-4, then the heterodimer enter to the nucleus to inhibit transcription regulated by daf-3/daf-5.{{cite journal | vauthors = Gumienny TL, Savage-Dunn C | title = TGF-β signaling in C. elegans | journal = WormBook | pages = 1–34 | date = July 2013 | pmid = 23908056 | doi = 10.1895/wormbook.1.22.2 | pmc = 5081272 }}