Purification and characterization of hementin, a fibrinogenolytic protease from the leech Haementeria ghilianii.

Purification and characterization of hementin, a fibrinogenolytic protease from the leech Haementeria ghilianii.
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血红素的纯化和表征,血红素是一种来自水蛭 Haementeria ghilianii 的纤维蛋白原分解蛋白酶。

DOI:
10.1016/s0021-9673(01)89600-x
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发表时间:
1990
期刊:
Journal of chromatography
影响因子:
--
通讯作者:
Budzynski,AZ
Budzynski,AZ
中科院分区:
--
文献类型:
--
作者:
Swadesh,JK;Huang,IY;Budzynski,AZ

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采用超滤、高效离子交换色谱和反相液相色谱法分离了巨大水蛭Haementeria ghilianii后唾液腺提取物中的纤维蛋白原溶解酶hementin。大约100 μg(1 nmol)的血铁蛋白,在粗水蛭唾液提取物中的含量低于0.5%,在三个步骤中达到约90%的纯度。血红素蛋白在非还原性十二烷基硫酸钠聚丙烯酰胺凝胶电泳(SDS-PAGE)上的迁移率约为73000,在还原性SDS-PAGE上的迁移率约为82000。氨基末端序列确定为TTLTE-PEPDL。还测定了在第一个色谱步骤中与hementin部分共洗脱的两种无活性蛋白质的氨基末端序列。
The fibrinogenolytic enzyme hementin, present in extracts of the posterior salivary glands of the giant leechHaementeria ghilianii, was isolated by ultrafiltration, high-performance ion-exchange chromatography and subsequent reversed-phase liquid chromatography. Approximately 100 μg (1 nmol) of hementin, present at less than 0.5% in the crude leech salivary extract, was brought to about 90% purity in three steps. Hementin migrated at anMrof about 73 000 on non-reducing sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and at 82 000 on reducing SDS-PAGE. The amino terminal sequence was determined to be TTLTE-PEPDL. The amino terminal sequences of two inactive proteins that partially coeluted with hementin in the first chromatographic step were also determined.
DOI: 10.1016/0021-9673(86)80059-0
发表时间: 1986
期刊: Journal of chromatography
影响因子: --
作者:
Lu,XM;Benedek,K;Karger,BL
通讯作者: Karger,BL
DOI: 10.1016/s0021-9673(01)91662-0
发表时间: 1984-01-01
期刊: JOURNAL OF CHROMATOGRAPHY
影响因子: --
作者:
BENEDEK, K;DONG, S;KARGER, BL
通讯作者: KARGER, BL
Hementin:来自吉利安水蛭唾液腺的抗凝蛋白酶。
DOI: --
发表时间: 1984
期刊: The Journal of laboratory and clinical medicine
影响因子: --
作者:
Malinconico,SM;Katz,JB;Budzynski,AZ
通讯作者: Budzynski,AZ