کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2051468 1074201 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Purification of the skeletal muscle protein Endopin 1B and characterization of the genes encoding Endopin 1A and 1B isoforms
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
Purification of the skeletal muscle protein Endopin 1B and characterization of the genes encoding Endopin 1A and 1B isoforms
چکیده انگلیسی

In the present work, a new endopin-like serpin designed mEndopin 1B was purified from bovine muscle. Biochemical characterizations (amino acid sequencing and Maldi-Tof mass spectrometry peptide mapping) demonstrated that the purified protein is different from the previously described Endopin 1, renamed mEndopin 1A. The genes and cDNA of both endopins were characterized. The cDNA sequence of mEndopin 1B encodes a predicted protein of 411 amino-acids with a molecular mass of 43 808 Da. The mEndopin 1B gene comprised four coding exons and an additional 5′ untranslated exon. The reactive site sequence of mEndopin 1B is somewhat different from that of mEndopin 1A. Nevertheless, both serpins have a similar peptidase inhibitory pattern against examined proteases (elastase, trypsin, plasmin and chymotrypsin). The high expression of both mEndopin 1A and 1B in bovine serum and tissues and their high efficiency to inhibit elastase (kass ∼ 106 − 107 M−1 s−1) suggested that these serpins might play a major role in inflammatory processes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: FEBS Letters - Volume 580, Issue 14, 12 June 2006, Pages 3477–3484
نویسندگان
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