(DNA-(apurinic or apyrimidinic site) lyase, b1633, JW1625.)
Nth has an apurinic and/or apyrimidinic endonuclease activity and a DNA N-glycosylase activity. This enzyme cuts impaired DNA at cytosines, thymines and guanines. Nth acts on a damaged strand, 5' from the damaged site. Nth is vital for the restoration of both oxidative DNA damage and spontaneous mutagenic lesions.
NTH E.Coli Recombinant fused with a 20 amino acid His tag at N-terminus produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 231 amino acids (1-211a.a.) and having a molecular mass of 25.7kDa. The NTH is purified by proprietary chromatographic techniques.
Purity: Greater than 85.0% as determined by SDS-PAGE.
Source: Escherichia Coli.
Physical Appearance: Sterile Filtered colorless solution.
Formulation: The NTH solution (0.5mg/1ml) contains 20mM Tris-HCl buffer (pH8.0), 0.1M NaCl, 1mM DTT, 0.1mM PMSF and 40% glycerol.
Amino Acid Sequence:
MGSSHHHHHH SSGLVPRGSH MNKAKRLEIL TRLRENNPHP TTELNFSSPF ELLIAVLLSA QATDVSVNKA TAKLYPVANT PAAMLELGVE GVKTYIKTIG LYNSKAENII KTCRILLEQH NGEVPEDRAA LEALPGVGRK TANVVLNTAF GWPTIAVDTH IFRVCNRTQF APGKNVEQVE EKLLKVVPAE FKVDCHHWLI LHGRYTCIAR KPRCGSCIIE DLCEYKEKVD I
Storage:
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Avoid multiple freeze-thaw cycles.
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