Myo19 encodes a novel metazoan myosin. Myo19 is expressed in multiple tissues and cell lines. Myo19 localizes to mitochondria. Expressing GFP-Myo19 alters mitochondrial dynamics. Myo19 is a novel mitochondrial associated myosin that is likely to function in actin-based mitochondrial dynamics. Actin-based motor molecule with ATPase activity that localizes to the mitochondrion outer membrane. Motor protein that moves towards the plus-end of actin filaments (By similarity). Required for mitochondrial inheritance during mitosis. May be involved in mitochondrial transport or positioning.
Background References
1. Quintero O.A. et. al. Human Myo19 is a novel myosin that associates with mitochondria. Curr. Biol. 19:2008-2013(2009)
2. Adikes R.C. et. al. Biochemical and bioinformatic analysis of the myosin-XIX motor domain. Cytoskeleton 70:281-295(2013)
Immunocytochemistry analysis of NCI-H441 cells labeling MYO19 with Rabbit anti-MYO19 antibody (HA721051) at 1/50 dilution.
Cells were fixed in 4% paraformaldehyde for 10 minutes at 37 ℃, permeabilized with 0.05% Triton X-100 in PBS for 20 minutes, and then blocked with 2% negative goat serum for 30 minutes at room temperature. Cells were then incubated with Rabbit anti-MYO19 antibody (HA721051) at 1/50 dilution in 2% negative goat serum overnight at 4 ℃. Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) was used as the secondary antibody at 1/1,000 dilution. Nuclear DNA was labelled in blue with DAPI.
Beta tubulin (M1305-2, red) was stained at 1/200 dilution overnight at +4℃. Goat Anti-Mouse IgG H&L (iFluor™ 647, HA1127) were used as the secondary antibody at 1/1,000 dilution.
Western blot analysis of MYO19 on different lysates with Rabbit anti-MYO19 antibody (HA721051) at 1/5,000 dilution.
Lane 1: RAW264.7 cell lysate Lane 2: NIH/3T3 cell lysate Lane 3: C6 cell lysate
Lysates/proteins at 20 µg/Lane. Exposure time: 59 seconds; ECL: K1801
Blocking: 5% NFDM/TBST, 1 hour at room temperature Primary antibody: HA721051, 1/5,000 in primary antibody dilution buffer (K1803), overnight at 4 ℃ Secondary antibody: Goat anti-Rabbit IgG-HRP (HA1001), 1/50,000 in 5% NFDM/TBST, 1 hour at room temperature
Predicted band size: 109 kDa Observed band size: 109 kDa
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