Description
Product Usage Information
Western Blotting: 1:1000
Immunoprecipitation: 1:200
Storage
Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at -20°C. Do not aliquot the antibody.
Protocol
Available protocols: Western Blotting, Immunoprecipitation
Specificity / Sensitivity
ALKBH1 Antibody recognizes endogenous levels of total ALKBH1 protein.
Species Reactivity: Human, Monkey
Source / Purification
Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues near the carboxy terminus of human ALKBH1 protein. Antibodies are purified by peptide affinity chromatography.
Background
AlkB is an oxidative dealkylating DNA repair enzyme first characterized in (1-5). Nine AlkB homologs exist in mammals, with the first eight designated as ALKBH1-ALKBH8, and the ninth as FTO (fat mass and obesity-associated protein) (6). ALKBH1, which features the highest sequence identity to AlkB, is an Fe(II) and 2-oxoglutarate-dependent dioxygenase that acts upon nucleic acids such as DNA and tRNA and carries out a wide range of enzymatic functions (6,7). Similar to other AlkB proteins, ALKBH1 is able to repair alkylated single-stranded DNA and RNA containing 3-methylcytosine (m3C), albeit with weak activity (8). Perhaps more importantly, it has also been shown to catalyze the demethylation of N -methyladenosine on tRNAs to regulate translation (9). ALKBH1 functions in the mitochondria as well, recognizing and oxidizing 5-methylcytosine (m5C) on mitochondrial tRNA to generate 5-formylcytosine, consequently enhancing mitochondrial translation (10). Interestingly, ALKBH1 has also been shown to possess apurinic/apyrimidinic (AP) lyase activity, cleaving both single-stranded and double-stranded DNA at abasic sites, with greatest affinity toward double-stranded DNA with two abasic sites (11). Lastly, ALKBH1 has been reported to possess N(6)-methyladenine (6mA) demethylase activity, suggesting a role in epigenetic regulation (12,13). However, an additional study was unable to show definitive ALKBH1 6mA demethylase activity using both biochemistry assays and knockout mice, so this enzymatic function remains controversial (9).
Alternate Names
ABH; ABH1; alkB; alkB homolog 1, histone H2A dioxygenase; alkB, alkylation repair homolog 1; alkB, alkylation repair homolog 1 (E. coli); ALKB1; ALKBH; ALKBH1; Alkylated DNA repair protein alkB homolog 1; alkylation repair, alkB homolog; Alpha-ketoglutarate-dependent dioxygenase ABH1; DNA 6mA demethylase; DNA demethylase ALKBH1; DNA lyase ABH1; DNA N6-methyl adenine demethylase ALKBH1; DNA oxidative demethylase ALKBH1; hABH; mRNA N(3)-methylcytidine demethylase; Nucleic acid dioxygenase ALKBH1; tRNA N1-methyl adenine demethylase
