Histone-lysine N-methyltransferase SETD1A is a protein that serves as a component of a histone methyltransferase (HMT) complex that produces mono-, di-, and trimethylated histone H3 at the lysine 4 residue (K4). SETD1A is highly homologous with SETDB1 but has a distinct subnuclear distribution.
According to a review published in 2018, mutations of the SETD1A gene may increase the risk of schizophrenia, based on studies available up to that date. A later review from 2024 found that SETD1A mutations been associated with development of schizophrenia at a later age. Loss of function (LoF) variants in SETD1A and epigenetic dysregulations of the gene are therefore thought to play an important role in the pathogenesis of schizophrenia.
History
The protein was first described in man in 2003 by Wysocka et al.
↑Kummeling J, Stremmelaar DE, Raun N, Reijnders MR, Willemsen MH, Ruiterkamp-Versteeg M, Schepens M, Man CC, Gilissen C, Cho MT, McWalter K, Sinnema M, Wheless JW, Simon ME, Genetti CA, Casey AM, Terhal PA, van der Smagt JJ, van Gassen KL, Joset P, Bahr A, Steindl K, Rauch A, Keller E, Raas-Rothschild A, Koolen DA, Agrawal PB, Hoffman TL, Powell-Hamilton NN, Thiffault I, Engleman K, Zhou D, Bodamer O, Hoefele J, Riedhammer KM, Schwaibold EM, Tasic V, Schubert D, Top D, Pfundt R, Higgs MR, Kramer JM, Kleefstra T (June 2021). "Characterization of SETD1A haploinsufficiency in humans and Drosophila defines a novel neurodevelopmental syndrome"(PDF). Molecular Psychiatry. 26 (6): 2013–24. doi:10.1038/s41380-020-0725-5. PMID32346159. S2CID212792900.