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Literature summary for 3.4.21.79 extracted from

  • Yang, J.; Pemberton, A.; Morrison, W.; Connelley, T.
    Granzyme B is an essential mediator in CD8 T cell killing of theileria parva-infected cells (2019), Infect. Immun., 87, e00386-18 .
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

Cloned (Comment) Organism
recombinant expression of functional and nonfunctional forms of bovine granzyme B in COS-7 cells. Establishment of an enzymatic assay to detect and quantify the expression of functional granzyme B protein. Using this assay, the levels of killing of different Theileria parva-specific CD8+ T-cell clones are found to be significantly correlated with the levels of granzyme B protein but not the levels of mRNA transcript expression Bos taurus

Inhibitors

Inhibitors Comment Organism Structure
acetyl-Ile-Ile-Glu-Pro-Asp-aldehyde granzyme B-specific inhibitor Bos taurus
additional information no inhibition by benzyloxycarbonyl-Val-Ala-Asp-(O-methyl)-fluoromethylketone Bos taurus
N-benzyloxycarbonyl-Ile-Glu(-O-methyl)-Thr-Asp(-O-methyl)-fluoromethylketone i.e. Z-IETD-FMK, specifically and effectively blocks the activity of cattle granzyme B and inhibits the killing of target cells by bovine CD8+ T cells Bos taurus

Organism

Organism UniProt Comment Textmining
Bos taurus F1MTF4
-
-
Bos taurus Holstein-Friesian F1MTF4
-
-

Source Tissue

Source Tissue Comment Organism Textmining
T-lymphocyte CD8+ T-cell Bos taurus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
acetyl-Ile-Glu-Pro-Asp-4-nitroanilide + H2O
-
Bos taurus acetyl-Ile-Glu-Pro-Asp + 4-nitroaniline
-
?
acetyl-Ile-Glu-Pro-Asp-4-nitroanilide + H2O
-
Bos taurus Holstein-Friesian acetyl-Ile-Glu-Pro-Asp + 4-nitroaniline
-
?
additional information no activity with succinyl-Gly-Gly-Phe-4-nitroanilide Bos taurus ?
-
?
additional information no activity with succinyl-Gly-Gly-Phe-4-nitroanilide Bos taurus Holstein-Friesian ?
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
37
-
assay at Bos taurus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
assay at Bos taurus

General Information

General Information Comment Organism
additional information establishment of an enzymatic assay to detect and quantify the expression of functional granzyme B protein. Using this assay, the levels of killing of different Theileria parva-specific CD8+ T-cell clones are found to be significantly correlated with the levels of granzyme B protein but not the levels of mRNA transcript expression. Using inhibitors specific for perforin and granzyme B confirms that CD8+ T-cell killing of parasitized cells is dependent on granule exocytosis and, specifically, granzyme B Bos taurus
physiological function cytotoxic CD8+ T-cells are important mediators of immunity against the bovine intracellular protozoan parasite Theileria parva. Granzyme B is an essential mediator in CD8 T-cell killing of Theileria parva-infected cells. CD8+ T-cell killing of parasitized cells is dependent on granule exocytosis and, specifically, granzyme B. The granzyme B-mediated death of parasitized cells is independent of caspases. Granzyme B activates the proapoptotic molecule Bid. The cytotoxic activity of T-cells is not dependent on caspases but is associated with activation of Bid Bos taurus