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histone acetyltransferase MYST3; MYST protein 3; MOZ, YBF2/SAS3, SAS2 & TIP60 protein 3; Runt-related transcription factor-binding protein 2; monocytic leukemia zinc finger protein; zinc finger protein 220 (MYST3, MOZ, RUNXBP2, ZNF220, KAT6A)
Function:
- histone acetyltransferase
- may act as a transcriptional coactivator for RUNX1 & RUNX2
- interacts with RUNX1 & RUNX2
- autoacetylated
- phosphorylated upon DNA damage, probably by ATM or ATR
acetyl-CoA + histone CoA + acetylhistone
Structure:
- N-terminus is involved in transcriptional activation
- C-terminus is involved in transcriptional repression
- belongs to the MYST (SAS/MOZ) family
- contains 1 C2HC-type Zn+2 finger
- contains 2 PHD-type Zn+2 fingers
Compartment:
- nucleus
- partially concentrated in subnuclear foci distinct from PML bodies, & excluded from the nucleoli
Pathology:
- chromosomal aberrations involving MYST3 may be a cause of acute myeloid leukemias
a) translocation t(8;16)(p11;p13) with CREBBP; fusion protein MYST3-CREBBP may induce leukemia by inhibiting RUNX1-mediated transcription
b) translocation t(8;22)(p11;q13) with EP300
c) inversion inv(8)(p11;q13) generates the MYST3-NCOA2 oncogene, which consists of the N-terminus part of MYST3 & the C-terminus part of NCOA2; MYST3-NCOA2 binds to CREBBP & disrupts its function in transcription activation
- chromosomal translocation t(2;8)(p23;p11.2) involving MYST3 with ASXL2 is a cause of therapy-related myelodysplastic syndrome; translocation generates a MYST3-ASXL2 fusion protein
Related
MOZ gene
General
acetyltransferase
phosphoprotein
transcription factor (TF)
zinc finger protein
Properties
SIZE: entity length = 2004 aa
MW = 225 kD
COMPARTMENT: cell nucleus
MOTIF: activation of RUNX1-1 {1-144}
nuclear localization {52-166}
Zn finger PHD-type
NAME: Zn finger PHD-type
SITE: 206-265
EFFECTOR-BOUND: Zn+2
Zn finger PHD-type
NAME: Zn finger PHD-type
SITE: 259-313
EFFECTOR-BOUND: Zn+2
RUNX1-1 interaction {312-664}
MOTIF: serine-rich region {371-379}
MOTIF: serine residue (SEVERAL)
Ser phosphorylation site {S473}
active site
SITE: 488-778
MOTIF: Zn finger C2HC-type
SITE: 538-560
EFFECTOR-BOUND: Zn+2
binding site
SITE: 635-668
FOR-BINDING-OF: ACETYLCOENZYME-A
cysteine residue {C646}
glutamate-rich region {788-801}
MOTIF: glutamate residue (SEVERAL)
breakpoint {813-814}
Thr phosphorylation site {T909}
Ser phosphorylation site {S941}
glutamate-rich region {989-995}
MOTIF: glutamate residue (SEVERAL)
arginine-rich region {1019-1026}
MOTIF: arginine residue (SEVERAL)
glutamate-rich region {1069-1078}
MOTIF: glutamate residue (SEVERAL)
Ser phosphorylation site {S1113}
breakpoint {1117-1118}
lysine-rich region {1147-1150}
MOTIF: lysine residue (SEVERAL)
glutamate-rich region {1221-1242}
MOTIF: glutamate residue (SEVERAL)
glutamate-rich region {1267-1302}
MOTIF: glutamate residue (SEVERAL)
glutamate-rich region {1411-1414}
MOTIF: glutamate residue (SEVERAL)
RUNX1-2 interaction {1517-1642}
MOTIF: breakpoint {1546-1547}
serine-rich region {1593-1597}
MOTIF: serine residue (SEVERAL)
proline-rich region
SITE: 1643-1704
MOTIF: proline residue (SEVERAL)
activation of RUNX1-2 {1913-1948}
Database Correlations
OMIM 601408
UniProt Q92794
PFAM correlations
ENZYME 2.3.1.48
References
- UniProt :accession Q92794
- Atlas of genetics & cytogenetics in oncology & haematology
http://atlasgeneticsoncology.org/genes/MYST3ID25ch8p11.html
- Marks P, Rifkind RA, Richon VM, Breslow R, Miller T, Kelly WK.
Histone deacetylases and cancer: causes and therapies.
Nat Rev Cancer. 2001 Dec;1(3):194-202. Review.
PMID: 11902574