IpaB Protein, Shigella flexneri, Recombinant (His)

Effector proteins function to alter host cell physiology and promote bacterial survival in host tissues. Forms a pore with IpaC, which is inserted into the host cell membrane through the Mxi/Spa apparatus, during cell contact. This pore probably allows the translocation of IpaA. IpaB has also been found to be necessary and sufficient to activate macrophage apoptosis by binding to interleukin-1 beta converting enzyme (ICE). Has also been shown to be important, along with IpaD, to block or regulate secretion through the Mxi/Spa translocon in the presence or absence of the secretion signal, respectively. Through interaction with host human MAD2L2, constitutively activates the anaphase-promoting complex APC and induces a cell cycle arrest to prevent epithelial renewal in order to promote bacterial colonization.

Pack Size	Availability	Price/USD
20 μg	20 days	$ 360.00
100 μg	20 days	$ 678.00
1 mg	20 days	$ 2,300.00

Pack Size

Availability

Price/USD

Quantity

20 μg

20 days

$ 360.00

100 μg

20 days

$ 678.00

1 mg

20 days

$ 2,300.00

Description

Species	Shigella flexneri
Expression System	E. coli
Tag	N-terminal 6xHis-tagged
Accession Number	P18011
Amino Acid	MHNVSTTTTGFPLAKILTSTELGDNTIQAANDAANKLFSLTIADLTANQNINTTNAHSTSNILIPELKAPKSLNASSQLTLLIGNLIQILGEKSLTALTNKITAWKSQQQARQQKNLEFSDKINTLLSETEGLTRDYEKQINKLKNADSKIKDLENKINQIQTRLSELDPESPEKKKLSREEIQLTIKKDAAVKDRTLIEQKTLSIHSKLTDKSMQLEKEIDSFSAFSNTASAEQLSTQQKSLTGLASVTQLMATFIQLVGKNNEESLKNDLALFQSLQESRKTEMERKSDEYAAEVRKAEELNRVMGCVGK Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Construction	1-312 aa
Protein Purity	> 85% as determined by SDS-PAGE.
Molecular Weight	40.6?kDa (predicted)

Formulation	Tris-based buffer,50% glycerol
Reconstitution	A hardcopy of COA with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Stability & Storage	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.
Shipping	In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Research Background	Effector proteins function to alter host cell physiology and promote bacterial survival in host tissues. Forms a pore with IpaC, which is inserted into the host cell membrane through the Mxi/Spa apparatus, during cell contact. This pore probably allows the translocation of IpaA. IpaB has also been found to be necessary and sufficient to activate macrophage apoptosis by binding to interleukin-1 beta converting enzyme (ICE). Has also been shown to be important, along with IpaD, to block or regulate secretion through the Mxi/Spa translocon in the presence or absence of the secretion signal, respectively. Through interaction with host human MAD2L2, constitutively activates the anaphase-promoting complex APC and induces a cell cycle arrest to prevent epithelial renewal in order to promote bacterial colonization.

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IpaB Protein, Shigella flexneri, Recombinant (His)

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