All lanes : Anti-MLK3 antibody [EP1460Y] (ab51068) at 1/5000 dilution

Lane 1 : Wild-type A549 cell lysate
Lane 2 : MAP3K11 knockout A549 cell lysate

Lysates/proteins at 20 µg per lane.

Performed under reducing conditions.

Predicted band size: 93 kDa
Observed band size: 105 kDa why is the actual band size different from the predicted?

Lanes 1- 2: Merged signal (red and green). Green - ab51068 observed at 105 kDa. Red - Anti-GAPDH antibody [6C5] - Loading Control (ab8245) observed at 37 kDa.

 ab51068 was shown to react with MLK3 in wild-type A549 cells in western blot. Loss of signal was observed when knockout cell line ab267169 (knockout cell lysate ab257519) was used. Wild-type A549 and MAP3K11 knockout A549 cell lysates were subjected to SDS-PAGE. Membrane was blocked for 1 hour at room temperature in 0.1% TBST with 3% non-fat dried milk. ab51068 and Anti-GAPDH antibody [6C5] - Loading Control (ab8245) overnight at 4°C at a 1 in 5000 dilution and a 1 in 20000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye^®800CW) preadsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye^®680RD) preadsorbed (ab216776) secondary antibodies at 1 in 20000 dilution for 1 hour at room temperature before imaging.

Allele-1: 288 bp insertion in exon5

 

Allele-2: 1 bp deletion in exon 5.

 

Allele-3: 1 bp insertion in exon 5.