The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Use a concentration of 1 - 5 µg/ml. Predicted molecular weight: 20 kDa.
Use a concentration of 1 µg/ml.
FunctionAccessory subunit of the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I), that is believed not to be involved in catalysis. Complex I functions in the transfer of electrons from NADH to the respiratory chain. The immediate electron acceptor for the enzyme is believed to be ubiquinone.
Involvement in diseaseDefects in NDUFS4 are a cause of mitochondrial complex I deficiency (MT-C1D) [MIM:252010]. A disorder of the mitochondrial respiratory chain that causes a wide range of clinical disorders, from lethal neonatal disease to adult-onset neurodegenerative disorders. Phenotypes include macrocephaly with progressive leukodystrophy, non-specific encephalopathy, cardiomyopathy, myopathy, liver disease, Leigh syndrome, Leber hereditary optic neuropathy, and some forms of Parkinson disease.
Sequence similaritiesBelongs to the complex I NDUFS4 subunit family.
Lane 1: Wild-type HAP1 cell lysate (20 µg) Lane 2: Ndufs4knockout HAP1 cell lysate (20 µg) Lane 3: HEK293 cell lysate (20 µg) Lane 4: Hu fetal heart tissue lysate (20 µg) Lanes 1 - 4: Merged signal (red and green). Green - ab55540 observed at 28 kDa. Red - loading control, ab181602, observed at 37 kDa.
ab55540 was shown to recognize Ndufs4 when Ndufs4 knockout samples were used, along with additional cross-reactive bands. Wild-type and Ndufs4 knockout samples were subjected to SDS-PAGE. ab55540 and ab181602 (loading control to GAPDH) at a concentration of 1 µg/ml and a dilution of 1/10000 and incubated overnight at 4°C. Blots were developed with Goat anti-Mouse IgG H&L (IRDye® 800CW) preadsorbed (ab216772) and Goat Anti-Rabbit IgG H&L (IRDye® 680RD) preadsorbed (ab216777) secondary antibodies at 1/10000 dilution for 1 hour at room temperature before imaging.