Vector Labs Ab00762-2.3 Anti-trans-sialidase [13G9], Mouse IgG2a, Fc Silent™, kappa (200 μg) Centrifuge Bundle Savings at Sycamore Life Sciences

Description

Product Class: Purified
Clone ID: 13G9
Heavy Chain Modification: Fc Silent™
Synonyms: TS
Amount: 200 μg
Application Codes Clone: IF; neutralize; crystallization
Shipping Temperature: Wet Ice
Buffer Composition: PBS with 0.02% Proclin 300.
Original Format: IgG2a
Storage Temperature: Store at 4⁰C for up to 3 months. For longer storage, aliquot and store at -20⁰C.
Specificity Statement: 13G9 is a neutralizing antibody which binds specifically and with high affinity (KD ~0.72 nM) to a conformational epitope on the Trypanosoma cruzi TS protein – the antibody binds to TS in such a way as to prevent the movement of Y119, whose mobility has a key role in the trans-glycosidase mechanism. Specificity of binding was deduced by the absence of reactivity against TS from the closely related Trypanosoma rangeli and Trypanosoma brucei. A Fab fragment of the antibody was generated by digestion with papain - the Fab fragment possesses lower inhibitory activity against T. cruzi TS (Fab IC50 ~1.6nM; full-length mAb IC50 ~56pM). Trypanosoma cruzi is a protozoan parasite which causes Chagas' disease (or American trypanosomiasis) and its protein TS is a glycosylphosphatidylinositol-anchored non-integral membrane protein and a virulence factor which is involved in host cell invasion/survival, as well as being actively shed in the bloodstream. TS performs a glyosyl-transfer reaction to convert host glycoconjugates into sialic acids (cannot perform de novo synthesis of sialic acids, which are important for life cycle and survival).
Application Notes: 13G9 can be used for IF with whole parasites which allows membrane localization of TS to be observed. The antibody can inhibit TS-mediated sialylation of the parasite via the transfer of sialic acid from the enivronment to the surface of the parasite. Cell invasion (a process in which TS plays a key role) is also inhibited by 13G9 and was shown to greatly reduce the number of T. cruzi-infected cells. Passive transfer of 13G9 to T. cruzi-infected mice provided protection against the delterious effects that TS has on the immune system and platelets. The 13G9 Fab fragment was also used to crystallize TS for structure studies and this allowed the binding to TS to be seen.

Product Class:	Purified
Clone ID:	13G9
Heavy Chain Modification:	Fc Silent™
Synonyms:	TS
Amount:	200 μg
Application Codes Clone:	IF; neutralize; crystallization
Shipping Temperature:	Wet Ice
Buffer Composition:	PBS with 0.02% Proclin 300.
Original Format:	IgG2a
Storage Temperature:	Store at 4⁰C for up to 3 months. For longer storage, aliquot and store at -20⁰C.
Specificity Statement:	13G9 is a neutralizing antibody which binds specifically and with high affinity (KD ~0.72 nM) to a conformational epitope on the Trypanosoma cruzi TS protein – the antibody binds to TS in such a way as to prevent the movement of Y119, whose mobility has a key role in the trans-glycosidase mechanism. Specificity of binding was deduced by the absence of reactivity against TS from the closely related Trypanosoma rangeli and Trypanosoma brucei. A Fab fragment of the antibody was generated by digestion with papain - the Fab fragment possesses lower inhibitory activity against T. cruzi TS (Fab IC50 ~1.6nM; full-length mAb IC50 ~56pM). Trypanosoma cruzi is a protozoan parasite which causes Chagas' disease (or American trypanosomiasis) and its protein TS is a glycosylphosphatidylinositol-anchored non-integral membrane protein and a virulence factor which is involved in host cell invasion/survival, as well as being actively shed in the bloodstream. TS performs a glyosyl-transfer reaction to convert host glycoconjugates into sialic acids (cannot perform de novo synthesis of sialic acids, which are important for life cycle and survival).
Application Notes:	13G9 can be used for IF with whole parasites which allows membrane localization of TS to be observed. The antibody can inhibit TS-mediated sialylation of the parasite via the transfer of sialic acid from the enivronment to the surface of the parasite. Cell invasion (a process in which TS plays a key role) is also inhibited by 13G9 and was shown to greatly reduce the number of T. cruzi-infected cells. Passive transfer of 13G9 to T. cruzi-infected mice provided protection against the delterious effects that TS has on the immune system and platelets. The 13G9 Fab fragment was also used to crystallize TS for structure studies and this allowed the binding to TS to be seen.

Specifications

More Information
Brand	Vector Labs
UNSPSC	12161500

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