Protein
Histone acetyltransferase type B catalytic subunit
Organism
Magnaporthe oryzae (strain 70-15 / ATCC MYA-4617 / FGSC 8958)
Function
Catalytic component of the histone acetylase B (HAT-B) complex. Has intrinsic substrate specificity that modifies lysine in recognition sequence GXGKXG (By similarity). Involved in DNA double-strand break repair (PubMed:30776962). Required for appressorium turgor pressure, autophagy and conidial nuclear degradation (PubMed:30776962). During the germination process and upon starvation conditions, translocates from the nucleus to the cytoplasm where it acetylates ATG3 at 'lys-262' and 'Lys-267', thus influencing autophagy through controlling ATG3-ATG8 interaction (PubMed:30776962). Also acetylates ATG9 at 'Lys-621' to regulate ATG9 binding to vesicles, which is also important for autophagy and pathogenicity (PubMed:30776962).
Similarity
Belongs to the HAT1 family.
Sequence
MAESDLWSVDANSALELSLVEPTEDGLTTVTRFHPRFTYPLFGEEEQIFGYQDLKINLQYHAPDMRPNVKITHSKKFKSIGETQPTDLDALLQGYLPPVAFAKKREFEDAIRLMPADWTPPGEILSEFDGVDGAKFEIRRSNLADDASRQIIDRVQLLILLFIEGGSYIGTDTTDSLDRWDIFFLYNIKPSTTDGTSRYQFAGYSTVYKFFPLQRFPLEPKEAHENLELPSGEFPFSNLRSRTRISQFLILPPFQKSGNGSRLYRTIYDYCLRDPNVIEVTVEDPNEAFDDMRDVADLDFLRQKSEFTDLRINTDIHIPKQGAAPRGVVDEVKSEEARCLYRIAPRQFSRVLEMHLMSRLAETVRPTLVDDKVVAKPTKIETHEYDLWKLFVKQRLYRHNKEVLSQLDRHDRIERLNETLGSVELEYARILALAERRTQATSSNLKRKLDDDENTEGSSSKKARVEDA