Arginine-rich, mutated in early-stage tumors (ARMET), arginine-rich protein (ARP), or mesencephalic astrocyte-derived neurotrophic factor (MANF) is a protein that in humans is encoded by the MANFhousekeeping gene.[4][5]
This gene encodes a highly conserved protein whose function is known. The protein was initially thought to be longer at the N-terminus and to contain an arginine-rich region but transcribed evidence indicates a smaller open reading frame that does not encode the arginine tract. The presence of a specific mutation changing the previously numbered codon 50 from ATG to AGG, or deletion of that codon, has been reported in a variety of solid tumors. With the protein size correction, this codon is now identified as the initiation codon.[5]
^"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^Petrova P, Raibekas A, Pevsner J, Vigo N, Anafi M, Moore MK, Peaire AE, Shridhar V, Smith DI, Kelly J, Durocher Y, Commissiong JW (Jun 2003). "MANF: a new mesencephalic, astrocyte-derived neurotrophic factor with selectivity for dopaminergic neurons". J Mol Neurosci. 20 (2): 173–88. doi:10.1385/JMN:20:2:173. PMID12794311. S2CID218459504.