| 41. | Hayden said of his previous failures against the Proteas.
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| 42. | The Proteas lost the last four wickets for the addition of 66 runs.
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| 43. | The Proteas will have to take to field on the fifth day Sunday.
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| 44. | England trails the five-match series against the Proteas 1-0.
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| 45. | However, Latif is unavailable for the two test matches against the Proteas.
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| 46. | Makhaya Ntini finished as the Proteas'most successful bowler with three wickets.
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| 47. | However, proteases do not catalyse the hydrolysis of all kinds of proteins.
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| 48. | They are cysteine proteases that cleave the amide bond between the two proteins.
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| 49. | After blood meal ingestion, proteases are active only in the posterior midgut.
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| 50. | However, the proteases that recognize these cleavage sites are tissue-specific.
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