Recombinant Escherichia coli Methyl-accepting chemotaxis protein I (tsr), partial

中文名稱：

大腸桿菌tsr重組蛋白
貨號：

CSB-EP355908ENV
說明書：

MSDS Datasheet
規格：
來源：

E.coli
其他：

中文名稱：

大腸桿菌tsr重組蛋白
貨號：

CSB-EP355908ENV-B
說明書：

MSDS Datasheet
規格：
來源：

E.coli
共軛：

Avi-tag Biotinylated
E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
其他：

中文名稱：

大腸桿菌tsr重組蛋白
貨號：

CSB-BP355908ENV
說明書：

MSDS Datasheet
規格：
來源：

Baculovirus
其他：

中文名稱：

大腸桿菌tsr重組蛋白
貨號：

CSB-MP355908ENV
說明書：

MSDS Datasheet
規格：
來源：

Mammalian cell
其他：

產品詳情
產品評價
相關產品
靶點詳情

產品詳情

純度：

Greater than 85% as determined by SDS-PAGE.
基因名：

tsr
Uniprot No.：

P02942
別名：

tsr; cheD; b4355; JW4318Methyl-accepting chemotaxis protein I; MCP-I; Serine chemoreceptor protein
種屬：

Escherichia coli (strain K12)
蛋白長度：

Partial
表達區域：

211-551aa
氨基酸序列

WFGIKASLVAPMNRLIDSIRHIAGGDLVKPIEVDGSNEMGQLAESLRHMQGELMRTVGDVRNGANAIYSGASEIATGNNDLSSRTEQQAASLEETAASMEQLTATVKQNAENARQASHLALSASETAQRGGKVVDNVVQTMRDISTSSQKIADIISVIDGIAFQTNILALNAAVEAARAGEQGRGFAVVAGEVRNLAQRSAQAAREIKSLIEDSVGKVDVGSTLVESAGETMAEIVSAVTRVTDIMGEIASASDEQSRGIDQVGLAVAEMDRVTQQNAALVEESAAAAAALEEQASRLTEAVAVFRIQQQQRETSAVVKTVTPAAPRKMAVADSEENWETF
蛋白標簽：

Tag?type?will?be?determined?during?the?manufacturing?process.

The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
產品提供形式：

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.
復溶：

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℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
儲存條件：

Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
保質期：

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.
貨期：

Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
注意事項：

Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet ：

Please contact us to get it.

產品評價

靶點詳情

功能：

Receptor for the attractant L-serine and related amino acids. Is also responsible for chemotaxis away from a wide range of repellents, including leucine, indole, and weak acids.; Chemotactic-signal transducers respond to changes in the concentration of attractants and repellents in the environment, transduce a signal from the outside to the inside of the cell, and facilitate sensory adaptation through the variation of the level of methylation. Attractants increase the level of methylation while repellents decrease the level of methylation, the methyl groups are added by the methyltransferase CheR and removed by the methylesterase CheB.
基因功能參考文獻：
1. this study shows that Tsr interacts with IL-8 provoking E. coli transmigration across human lung epithelial cells PMID: 27506372
2. results indicate that, rather than being essential for proper receptor-receptor interaction, the "glycine hinge" residues are involved in the ability of the receptor to switch between different signaling states. Mainly, the C-helix residue G439 has a key role in shifting the equilibrium toward a kinase-activating conformation. PMID: 28664727
3. These results indicate that the E402 and R404 residues of Tsr play their most critical signaling roles at their inner locations near the trimer axis where they likely participate in stabilizing the trimer-of-dimer packing and the kinase-ON state of core signaling complexes. PMID: 28215934
4. The authors suggest that the Tsr control cable transmits input signals to a four-helix HAMP bundle by modulating the intensity of structural clashes between out-of-register transmembrane helix and AS1 helix of HAMP. PMID: 27019297
5. Phe396 governs conformational changes of tsr. PMID: 24335957
6. Alterations in the symmetry of the two branches of the cytoplasmic hairpin of tsr seriously compromise chemoreceptor function. PMID: 22111959
7. Mutant Tsr molecules with a charged amino acid or proline replacement exhibited the most severe trimer formation defects. PMID: 21965562
8. The results suggest a helix extension mechanism of Tsr transmembrane signaling in which TM2 piston motions influence HAMP stability by modulating the helicity of the control cable segment. PMID: 21803986
9. The findings of this study provide strong support for a three-state dynamic bundle model of HAMP domain signalling in Tsr, and possibly in other bacterial transducers as well. PMID: 21306449
10. serine ligand binding increased rate of methylation PMID: 15516567
11. Tsr responds to changes in proton motive force PMID: 16995896
12. Architecture of receptor assemblies is in intact Escherichia coli is described. PMID: 17327165
13. Most I241 lesions locked Tsr signal output in the kinase-on mode, implying that this residue is responsible mainly for stabilizing the kinase-off signaling state. PMID: 18621896
14. The current study, utilizing a Tsr-GFP fusion protein and time-lapse fluorescence microscopy of individual cell lineages, demonstrates that Tsr accumulates approximately linearly with time at the cell poles PMID: 18647166
15. Expansion of polyQ to 13Q in Tsr has no significant effect on chemotaxis. PMID: 18667570
16. Amino acid replacements of two conserved residues at the tip of the trimer contact region of Tsr caused differing interactions with CheA and CheW. PMID: 18931127
17. chemoreceptors are organized as trimers of receptor dimers and display two distinct conformations that differ principally in arrangement of the HAMP domains within each trimer PMID: 18940922
18. The authors propose that Tsr HAMP controls output signals by modulating destabilizing phase clashes between the AS2 helices and the adjoining kinase control helices. PMID: 19656294
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亞細胞定位：

Cell inner membrane; Multi-pass membrane protein. Note=Found predominantly at cell poles.
數據庫鏈接：

KEGG: ecj:JW4318

STRING: 316407.85677095