BoNT/E Protein, Clostridium butyricum, Recombinant (His & SUMO)

BoNT/E Protein, Clostridium butyricum, Recombinant (His & SUMO) is expressed in E. coli expression system with N-6xHis-SUMO tag. The predicted molecular weight is 63.7 kDa and the accession number is P30995.

规格	价格/CNY		数量
20 μg	￥ 2,290	20日内发货
100 μg	￥ 4,320	20日内发货
1 mg	￥ 14,600	20日内发货

规格

价格/CNY

货期

数量

20 μg

￥ 2,290

20日内发货

100 μg

￥ 4,320

20日内发货

1 mg

￥ 14,600

20日内发货

产品描述	BoNT/E Protein, Clostridium butyricum, Recombinant (His & SUMO) is expressed in E. coli expression system with N-6xHis-SUMO tag. The predicted molecular weight is 63.7 kDa and the accession number is P30995.

种属	Clostridium butyricum
表达系统	E. coli
标签	N-6xHis-SUMO
蛋白编号	P30995
别名	Bontoxilysin-E, BoNT/E, Botulinum neurotoxin type E
氨基酸序列	PTINSFNYNDPVNNRTILYIKPGGCQQFYKSFNIMKNIWIIPERNVIGTIPQDFLPPTSLKNGDSSYYDPNYLQSDQEKDKFLKIVTKIFNRINDNLSGRILLEELSKANPYLGNDNTPDGDFIINDASAVPIQFSNGSQSILLPNVIIMGAEPDLFETNSSNISLRNNYMPSNHGFGSIAIVTFSPEYSFRFKDNSMNEFIQDPALTLMHELIHSLHGLYGAKGITTKYTITQKQNPLITNIRGTNIEEFLTFGGTDLNIITSAQSNDIYTNLLADYKKIASKLSKVQVSNPLLNPYKDVFEAKYGLDKDASGIYSVNINKFNDIFKKLYSFTEFDLATKFQVKCRQTYIGQYKYFKLSNLLNDSIYNISEGYNINNLKVNFRGQNANLNPRIITPITGRGLVKKIIRFCKNIVSVKGIR
蛋白构建	2-422 aa
蛋白纯度	> 90% as determined by SDS-PAGE.
分子量	63.7 kDa (predicted)

缓冲液	Tris-based buffer, 50% glycerol
复溶方法	A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.
存储	Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at-80℃. For reconstituted protein solutions, the solution can be stored at -20°c to -80'c for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
运输方式	In general, Lyophilized powders are shipping with blue ice. Solutions are shipping with dry ice.
研究背景	Botulinum toxin causes flaccid paralysis by inhibiting neurotransmitter (acetylcholine) release from the presynaptic membranes of nerve terminals of eukaryotic host skeletal and autonomic nervous system, with frequent heart or respiratory failure. Precursor of botulinum neurotoxin E which has 2 coreceptors; complex polysialylated gangliosides found on neural tissue and specific membrane-anchored proteins found in synaptic vesicles. Receptor proteins are exposed on host presynaptic cell membrane during neurotransmitter release, when the toxin heavy chain (HC) binds to them. Upon synaptic vesicle recycling the toxin is taken up via the endocytic pathway. When the pH of the toxin-containing endosome drops a structural rearrangement occurs so that the N-terminus of the HC forms pores that allows the light chain (LC) to translocate into the cytosol. Once in the cytosol the disulfide bond linking the 2 subunits is reduced and LC cleaves its target protein on synaptic vesicles, preventing their fusion with the cytoplasmic membrane and thus neurotransmitter release.; Has proteolytic activity. After translocation into the eukaryotic host cytosol, LC hydrolyzes the '180-Arg-\|-Ile-181' bond in SNAP25, blocking neurotransmitter release.; Responsible for host epithelial cell transcytosis, host nerve cell targeting and translocation of light chain (LC) into host cytosol. Composed of 3 subdomains; the translocation domain (TD), and N-terminus and C-terminus of the receptor-binding domain (RBD). The RBD is responsible for the adherence of the toxin to the cell surface. It simultaneously recognizes 2 coreceptors; host polysialated gangliosides and the receptor proteins SV2A and SV2B in close proximity on host synaptic vesicles. Interaction with SV2 proteins requires SV2 glycosylation. The N-terminus of the TD wraps an extended belt around the perimeter of the LC, protecting Zn(2+) in the active site; it may also prevent premature LC dissociation from the translocation channel and protect toxin prior to translocation. The TD inserts into synaptic vesicle membrane to allow translocation into the host cytosol. Binds ganglioside GD1a in vitro.

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BoNT/E Protein, Clostridium butyricum, Recombinant (His & SUMO)

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