Lefty (protein)

left-right determination factor 1
Identifiers
SymbolLEFTY1
Alt. symbolsLEFTB
NCBI gene10637
HGNC6552
OMIM603037
RefSeqNM_020997
UniProtO75610
Other data
LocusChr. 1 q42.1
Search for
StructuresSwiss-model
DomainsInterPro
left-right determination factor 2
Identifiers
SymbolLEFTY2
Alt. symbolsTGFB4, EBAF
NCBI gene7044
HGNC3122
OMIM601877
RefSeqNM_003240
UniProtO00292
Other data
LocusChr. 1 q42.1
Search for
StructuresSwiss-model
DomainsInterPro

Lefty (left-right determination factors) are a class of proteins that are closely related members of the TGF-beta superfamily of growth factors. These proteins are secreted and play a role in left-right asymmetry determination of organ systems during development.[1] Mutations of the genes encoding these proteins have been associated with left-right axis malformations, particularly in the heart and lungs.[2]

  1. ^ Cite error: The named reference pmid11836504 was invoked but never defined (see the help page).
  2. ^ Meno C, Shimono A, Saijoh Y, Yashiro K, Mochida K, Ohishi S, Noji S, Kondoh H, Hamada H (August 1998). "lefty-1 is required for left-right determination as a regulator of lefty-2 and nodal". Cell. 94 (3): 287–97. doi:10.1016/S0092-8674(00)81472-5. PMID 9708731. S2CID 5666974.