CTDSP1 Recombinant Protein

Source : Escherichia Coli. CTDSP1 produced in E.Coli is a single, non-glycosylated polypeptide chain containing 280 amino acids (1-260 a.a.) and having a molecular mass of 31.2kDa.CTDSP1 is fused to a 20 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques. CTDSP1 is a class 2C phosphatase with activity dependent on the conserved DxD motif. CTDSP1 preferentially catalyzes the dephosphorylation of 'Ser-5' within the tandem 7 residues repeats in the C-terminal domain (CTD) of the largest RNA polymerase II subunit POLR2A. In addition, CTDSP1 negatively regulates RNA polymerase II transcription, possibly by controlling the transition from initiation/capping to processive transcript elongation.

Product Specifications

Product Name Alternative

Carboxy-terminal domain RNA polymerase II polypeptide A small phosphatase 1||Nuclear LIM interactor-interacting factor 3||NLI-IF||NLI-interacting factor 3||Small C-terminal domain phosphatase 1||SCP1||Small CTD phosphatase 1||CTDSP1||NIF3||NLIIF.

Purification

Greater than 90.0% as determined by SDS-PAGE.

Components

CTDSP1 solution (1mg/mL) containing 20mM Tris-HCl buffer (pH 8.0), 1mM DTT, 20% glycerol and 0.1M NaCl.

Storage Conditions

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.

Amino Acids

MGSSHHHHHH SSGLVPRGSH MDSSAVITQI SKEEARGPLR GKGDQKSAAS QKPRSRGILH SLFCCVCRDD GEALPAHSGA PLLVEENGAI PKTPVQYLLP EAKAQDSDKI CVVIDLDETL VHSSFKPVNN ADFIIPVEID GVVHQVYVLK RPHVDEFLQR MGELFECVLF TASLAKYADP VADLLDKWGA FRARLFRESC VFHRGNYVKD LSRLGRDLRR VLILDNSPAS YVFHPDNAVP VASWFDNMSD TELHDLLPFF EQLSRVDDVY SVLRQPRPGS.