Alpha N-terminal protein methyltransferase 1B;Methyltransferase-like protein 11B;X-Pro-Lys N-terminal protein methyltransferase 1B;NTM1B
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Tag
C-terminal 6xHis-tagged
Molecular Weight
33.5 kDa
Relevance
Alpha N-methyltransferase that methylates the N-terminus of target proteins containing the N-terminal motif (Ala/Pro/Ser)-Pro-Lys when the initiator Met is cleaved. Specifically catalyzes monomethylation of exposed alpha-amino group of Ala or Ser residue in the (Ala/Ser)-Pro-Lys motif and Pro in the Pro-Pro-Lys motif. Predominantly functions as a mono-methyltransferase but is also able to di-/tri-methylate the GPKRIA peptide and di-methylate the PPKRIA peptide in vitro. May activate NTMT1 by priming its substrates for trimethylation.
Source
E.coli
Form
Liquid or Lyophilized powder
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.<br />If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Purity
Greater than 95% as determined by SDS-PAGE.
Storage
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. <br />Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.