5′ -Nucleotidase and Thrombin-Like Activities of Selected Crotalid Venoms

Ali M.S. Shams; Dewey H. Sifford; Bob D. Johnson

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5′ -Nucleotidase and Thrombin-Like Activities of Selected Crotalid Venoms

机译：某些猪N毒液的5'-核苷酸酶和类凝血酶活性

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Thrombin-like activities were not observed in Crotalus basiliscus, C. molossus and C. scutulatus scutulatus crude venoms. 5'-Nucleotidase specific activities of 0.863, 0.273 and 5.520 units/mg of crude venom protein were observed in C. basiliscus, C. molossus and C. s. scutulatus venoms, respectively. Concanavalin A Sepharose 4 B (Con A) affinity chromatography yielded two fractions from each of the crude venoms. In each instance, both fractions exhibited 5′-nucleotidase activities and the Con A-binding proteins had higher activities than the Con A-nonbinding proteins. 5′-Nucleotidase activities in the DEAE Sephadex A-50 chromatographic fractions were localized in the first elution fraction and the last fraction(s) to elute. EDTA had no effect on the 5′-nucleotidase activities of the crude venoms.

机译：在猪屎豆属，莫氏梭菌和盾形C粗毒液中未观察到凝血酶样活性。在青枯病梭菌，莫氏梭状芽胞杆菌和梭状芽胞杆菌中观察到0.863、0.273和5.520单位/ mg的粗毒蛋白的5'-核苷酸酶比活性。盾cut毒液分别。伴刀豆球蛋白A Sepharose 4 B（Con A）亲和色谱从每个粗毒液中产生两个馏分。在每种情况下，两个级分均显示5'-核苷酸酶活性，并且Con A结合蛋白比Con A非结合蛋白具有更高的活性。 DEAE Sephadex A-50层析级分中的5'-核苷酸酶活性位于第一个洗脱级分和最后一个或多个洗脱级分中。 EDTA对粗毒液的5'-核苷酸酶活性没有影响。

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《Proceedings of the Arkansas Academy of Science》 |1995年第1995期|p.169-172|共4页
作者
Ali M.S. Shams; Dewey H. Sifford; Bob D. Johnson;
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Department of Biological Sciences and Department of Chemistry, Biochemistry and Physics Arkansas State University State University, AR 72467;

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正文语种 eng
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6. The absence of thrombin-like activity in Bothrops erythromelas venom is due to the deletion of the snake venom thrombin-like enzyme gene [O] . Nicholas P. Lotto, Jeanne C. de Albuquerque Modesto, Sávio S. Sant’Anna, 2021

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5′ -Nucleotidase and Thrombin-Like Activities of Selected Crotalid Venoms

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