| Function | Broad-specificity mitochondrial nucleoside phosphate kinase involved in cellular nucleotide homeostasis by catalyzing nucleoside-phosphate interconversions. Similar to other adenylate kinases, preferentially catalyzes the phosphorylation of the nucleoside monophosphate AMP with ATP as phosphate donor to produce ADP. Phosphorylates only AMP when using GTP as phosphate donor. In vitro, can also catalyze the phosphorylation of CMP, dAMP and dCMP and use GTP as an alternate phosphate donor. Moreover, exhibits a diphosphate kinase activity, producing ATP, CTP, GTP, UTP, TTP, dATP, dCTP and dGTP from the corresponding diphosphate substrates with either ATP or GTP as phosphate donors. Plays a role in controlling cellular ATP levels by regulating phosphorylation and activation of the energy sensor protein kinase AMPK. Plays a protective role in the cellular response to oxidative stress. |
| Protein Name | Adenylate Kinase 4 - MitochondrialAdenylate Kinase 3-LikeGtp -Amp Phosphotransferase Ak4 |
| Database Links | Reactome: R-HSA-499943 |
| Cellular Localisation | Mitochondrion Matrix |
| Alternative Antibody Names | Anti-Adenylate Kinase 4 - Mitochondrial antibodyAnti-Adenylate Kinase 3-Like antibodyAnti-Gtp -Amp Phosphotransferase Ak4 antibodyAnti-AK4 antibodyAnti-AK3 antibodyAnti-AK3L1 antibody |
Information sourced from Uniprot.org
![Western blot analysis of lysates from wild type (WT) and AK4 knockout (KO) HeLa cells, using [KO Validated] AK4 Rabbit polyclonal antibody (STJ11100730) at 1:1000 dilution. Secondary antibody: HRP Goat Anti-Rabbit IgG (H+L) (STJS000856) at 1:10000 dilution. Lysates/proteins: 25 Mu g per lane. Blocking buffer: 3% nonfat dry milk in TBST. Detection: ECL Basic Kit. Exposure time: 1s.](https://cdn11.bigcommerce.com/s-zso2xnchw9/images/stencil/600x533/products/89668/358164/STJ11100730_1__42931.1713122467.jpg?c=1 "Western blot analysis of lysates from wild type (WT) and AK4 knockout (KO) HeLa cells, using [KO Validated] AK4 Rabbit polyclonal antibody (STJ11100730) at 1:1000 dilution. Secondary antibody: HRP Goat Anti-Rabbit IgG (H+L) (STJS000856) at 1:10000 dilution. Lysates/proteins: 25 Mu g per lane. Blocking buffer: 3% nonfat dry milk in TBST. Detection: ECL Basic Kit. Exposure time: 1s.")
