Recombinant Human Trimethylguanosine synthase(TGS1) ,partial

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Code CSB-EP847219HU
Size US$1726Purchase it in Cusabio online store
(only available for customers from the US)
  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

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Product Details

Purity Greater than 90% as determined by SDS-PAGE.
Target Names TGS1
Uniprot No. Q96RS0
Research Area Epigenetics and Nuclear Signaling
Alternative Names Cap specific guanine N2 methyltransferase; Cap-specific guanine-N2 methyltransferase; CLL associated antigen KW 2; CLL-associated antigen KW-2; DKFZp762A163; FLJ22995; HCA137; Hepatocellular carcinoma associated antigen 137; Hepatocellular carcinoma-associated antigen 137; NCOA6IP; Nuclear receptor coactivator 6 interacting protein; Nuclear receptor coactivator 6-interacting protein; PIMT; PIPMT; PRIP interacting protein PIPMT; PRIP interacting protein with methyltransferase domain; PRIP interacting protein with methyltransferase motif; PRIP-interacting protein with methyltransferase motif; SEREX defined; TGS 1; Tgs1; TGS1_HUMAN; Trimethylguanosine synthase; Trimethylguanosine synthase homolog (S. cerevisiae); Trimethylguanosine synthase homolog
Species Homo sapiens (Human)
Source E.coli
Expression Region 713-853aa
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight 31.6kDa
Protein Length Partial
Tag Info N-terminal 6xHis-SUMO-tagged
Form Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.
Note: If you have any special requirement for the glycerol content, please remark when you place the order.
If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
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.
and FAQs
Protein FAQs
Storage Condition Store at -20°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
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.
Lead Time Basically, we can dispatch the products out in 3-7 working days after receiving your orders. Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA Please contact us to get it.

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Target Data

Function Catalyzes the 2 serial methylation steps for the conversion of the 7-monomethylguanosine (m(7)G) caps of snRNAs and snoRNAs to a 2,2,7-trimethylguanosine (m(2,2,7)G) cap structure. The enzyme is specific for guanine, and N7 methylation must precede N2 methylation. Hypermethylation of the m7G cap of U snRNAs leads to their concentration in nuclear foci, their colocalization with coilin and the formation of canonical Cajal bodies (CBs). Plays a role in transcriptional regulation.
Gene References into Functions
  1. Data highlight the importance of the catalytic activity of PIMT to mediate VEGF effects during endothelial cell migration and tube formation in angiogenesis. PMID: 26738492
  2. Self-association of Tgs1p and its catalytic activity were prerequisite to bypass the requirement for its accessory factor Swm2p for efficient pre-rRNA processing and snRNA trimethylation. PMID: 26074133
  3. PIMT was identified as a key player responsible for glycated low density lipoproteins induced vascular endothelial cell apoptosis. PMID: 23922881
  4. isoforms of the PIMT/Tgs1 protein with an RNA methyltransferase domain function both in the nucleus and in the cytoplasm PMID: 12943661
  5. The protein L-isoaspartyl (D-aspartyl) methyltransferase (PIMT) is an enzyme that recognizes and repairs the abnormal L-isoaspartyl residues in proteins. PMID: 21204776
  6. The structure-function data highlight a strictly essential pi-cation interaction between Trp766 and the m(7)G base and a network of important enzymic contacts to the cap triphosphate via Lys646, Tyr771, Arg807, and Lys836. PMID: 20360394
  7. Interaction of PIMT with transcriptional coactivators CBP, p300, and PBP differential role in transcriptional regulation. PMID: 11912212
  8. proteasome maturation constitutes a mechanism regulating Tgs1 function by generating Tgs1 species with different substrate specificities, subcellular localizations, and functions. PMID: 18039666
  9. These results highlight that PIMT expression is regulated by ROS and could primarily act as an antioxidant enzyme. PMID: 18407833
  10. present a biochemical characterization of the human Tgs1 guanine-N2 methyltransferase reaction and identify individual amino acids required for methyltransferase activity in vitro and in vivo PMID: 18775984
  11. m(7)GpppA binds via its adenosine moiety to the structurally conserved adenosylmethionine-binding pocket. The m(7) guanosine is unbound. The crystallized TGS1 fragment is catalytically inactive, but a fragment that is 17 AAs longer exhibits activity. PMID: 19307714
  12. The crystal structure of the substrate bound methyltransferase domain as well as mutagenesis studies provide insight into the catalytic mechanism of TGS1. PMID: 19386620

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Subcellular Location Cytoplasm, Nucleus, Cajal body, Nucleus, nucleolus
Protein Families Methyltransferase superfamily, Trimethylguanosine synthase family
Tissue Specificity Ubiquitously expressed. High expression in heart, skeletal muscle, kidney, liver and placenta.
Database Links

HGNC: 17843

OMIM: 606461

KEGG: hsa:96764

STRING: 9606.ENSP00000260129

UniGene: Hs.335068


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