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

Target Protein Sequence

MRVIAIDIDPVKIALARNNAEVYGIADKIEFICGDFLLLASFLKADVVFLSPPWGGPDYATAETFDIRTMMSPDGFEIFRLSKKITNNIVYFLPRNADIDQVASLAGPGGQVEIEQNFLNNKLKTITAYFGDLIRRPASET
Note: The complete sequence may include tag sequence, target protein sequence, linker sequence and extra sequence that is translated with the protein sequence for the purpose(s) of secretion, stability, solubility, etc.
If the exact amino acid sequence of this recombinant protein is critical to your application, please explicitly request the full and complete sequence of this protein before ordering.

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.

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.

Troubleshooting and FAQs

Protein FAQs

Storage Condition

Store at -20°C/-80°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

3-7 business days

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.

Description

Constructing a plasmid that codes for the Human TGS1 protein (713-853aa) is the initial step to yield the recombinant Human TGS1 protein. The plasmid is then transferred into e.coli cells. Positive e.coli cells are selected and cultured for the protein expression. A N-terminal 6xHis-SUMO tag is fused to the protein. The affinity purification is used to purify the protein, and SDS-PAGE analysis is carried out to verify the presence and assess the purity of the protein. The protein possesses a purity exceeding 90%.

Target Background

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

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
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
PIMT was identified as a key player responsible for glycated low density lipoproteins induced vascular endothelial cell apoptosis. PMID: 23922881
isoforms of the PIMT/Tgs1 protein with an RNA methyltransferase domain function both in the nucleus and in the cytoplasm PMID: 12943661
The protein L-isoaspartyl (D-aspartyl) methyltransferase (PIMT) is an enzyme that recognizes and repairs the abnormal L-isoaspartyl residues in proteins. PMID: 21204776
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
Interaction of PIMT with transcriptional coactivators CBP, p300, and PBP differential role in transcriptional regulation. PMID: 11912212
proteasome maturation constitutes a mechanism regulating Tgs1 function by generating Tgs1 species with different substrate specificities, subcellular localizations, and functions. PMID: 18039666
These results highlight that PIMT expression is regulated by ROS and could primarily act as an antioxidant enzyme. PMID: 18407833
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
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
The crystal structure of the substrate bound methyltransferase domain as well as mutagenesis studies provide insight into the catalytic mechanism of TGS1. PMID: 19386620

Hide All

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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Code	CSB-EP847219HU
Abbreviation	Recombinant Human TGS1 protein, partial
MSDS	MSDS Datasheet
Size	$224
	Order now
Image	(Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Recombinant Human Trimethylguanosine synthase (TGS1), partial

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