Anti-ALKBH1 Antibody Picoband®

Nucleic acid dioxygenase ALKBH1 is an enzyme that in humans is encoded by the ALKBH1 gene. It is mapped to 14q24.3. This gene encodes a homolog to the E. coli alkB gene product. The E. coli alkB protein is part of the adaptive response mechanism of DNA alkylation damage repair. It is involved in damage reversal by oxidative demethylation of 1-methyladenine and 3-methylcytosine.

Nucleic acid dioxygenase ALKBH1; Alkylated DNA repair protein alkB homolog 1; Alpha-ketoglutarate-dependent dioxygenase ABH1; DNA 6mA demethylase; DNA N6-methyl adenine demethylase ALKBH1; DNA lyase ABH1; DNA oxidative demethylase ALKBH1; mRNA N (3) -methylcytidine demethylase; ALKBH1; ABH; ABH1; ALKBH

A synthetic peptide corresponding to a sequence at the C-terminus of human ALKBH1, which shares 81.3% and 84.4% amino acid (aa) sequence identity with mouse and rat ALKBH1, respectively.

Dioxygenase that acts as on nucleic acids, such as DNA and tRNA. Requires molecular oxygen, alpha-ketoglutarate and iron. A number of activities have been described for this dioxygenase, but recent results suggest that it mainly acts as on tRNAs and mediates their demethylation or oxidation depending on the context and subcellular compartment. Mainly acts as a tRNA demethylase by removing N1-methyladenine from various tRNAs, with a preference for N1-methyladenine at position 58 (m1A58) present on a stem loop structure of tRNAs. Acts as a regulator of translation initiation and elongation in response to glucose deprivation: regulates both translation initiation, by mediating demethylation of tRNA (Met), and translation elongation, N1-methyladenine-containing tRNAs being preferentially recruited to polysomes to promote translation elongation. In mitochondrion, specifically interacts with mt-tRNA (Met) and mediates oxidation of mt-tRNA (Met) methylated at cytosine (34) to form 5-formylcytosine (f5c) at this position. mt-tRNA (Met) containing the f5c modification at the wobble position enables recognition of the AUA codon in addition to the AUG codon, expanding codon recognition in mitochondrial translation. Specifically demethylates DNA methylated on the 6th position of adenine (N6-methyladenosine) DNA. N6-methyladenosine (m6A) DNA is present at some L1 elements in embryonic stem cells and probably promotes their silencing. Demethylates mRNAs containing N3-methylcytidine modification. Also able to repair alkylated single-stranded DNA by oxidative demethylation, but with low activity. Also has DNA lyase activity and introduces double-stranded breaks at abasic sites: cleaves both single-stranded DNA and double-stranded DNA at abasic sites, with the greatest activity towards double-stranded DNA with two abasic sites. DNA lyase activity does not require alpha-ketboglutarate and iron and leads to the formation of an irreversible covalent protein-DNA adduct with the 5' DNA product. DNA lyase activity is not required during base excision repair and class switch recombination of the immunoglobulin heavy chain during B lymphocyte activation. May play a role in placental trophoblast lineage differentiation.

1. Haag, S., Sloan, K. E., Ranjan, N., Warda, A. S., Kretschmer, J., Blessing, C., Hubner, B., Seikowski, J., Dennerlein, S., Rehling, P., Rodnina, M., Hobartner, C., Bohnsack, M. T. NSUN3 and ABH1 modify the wobble position of mt-tRNA (Met) to expand codon recognition in mitochondrial translation. EMBO J. 35: 2104-2119, 2016. 2. Tsujikawa, K., Koike, K., Kitae, K., Shinkawa, A., Arima, H., Suzuki, T., Tsuchiya, M., Makino, Y., Furukawa, T., Konishi, N., Yamamoto, H. Expression and sub-cellular localization of human ABH family molecules. J. Cell. Molec. Med. 11: 1105-1116, 2007. 3. Wei, Y. F., Carter, K. C., Wang, R. P., Shell, B. K. Molecular cloning and functional analysis of a human cDNA encoding an Escherichia coli AlkB homolog, a protein involved in DNA alkylation damage repair. Nucleic Acids Res. 24: 931-937, 1996.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.