نتایج جستجو برای: chit1
تعداد نتایج: 159 فیلتر نتایج به سال:
We studied structural dynamics in the photodissociation of iodoform (CHI3) dissolved in methanol by timeresolved x-ray diffraction. A femtosecond laser pulse induces the bond-breaking of an iodine atom from iodoform and an x-ray pulse generated from a synchrotron gives time-dependent diffraction signal which contains the structural information of photoproducts with 100 ps time-resolution and 0....
The endochitinase from Coccidioides immitis (CiX1) is a member of the class 18 chitinase family. Here we show the enzyme functions by a retaining catalytic mechanism; that is, the beta-conformation of the chitin substrate linkages is preserved after hydrolysis. The pattern of cleavage of N-acetyglucosamine (GlcNAc) oligosaccharide substrates has been determined. (GlcNAc)6 is predominantly cleav...
Chitinases hydrolyse the beta(1,4)-glycosidic bonds of chitin, an essential fungal cell wall component. Genetic data on a subclass of fungal family 18 chitinases have suggested a role in cell wall morphology. Specific inhibitors of these enzymes would be useful as tools to study their role in cell wall morphogenesis and could possess antifungal properties. Here, we describe the crystallographic...
Chitotriosidase, secreted by activated macrophages, is a biomarker of activated macrophages. In this study, we explored whether chitotriosidase could be adopted as a biomarker to evaluate the curative effect on tuberculosis (TB). Five counties were randomly selected out of 122 counties/cities/districts in Hunan Province, China. Our cases were all TB patients who were newly diagnosed or had been...
برهم‌کنش پاتوژن- میزبان فرایندی بسیار پیچیده است. همانند بسیاری از قارچهای پاتوژن حشرات، Beauveria bassiana آنزیمهایی تولید میکند که در زمان آلودگی برای نفوذ به داخل بدن میزبان، کوتیکول را از بین میبرند. کیتینازها آنزیمهای مهمی برای هیدرولیز کیتین به‌شمار میروند و میتوانند نقش مهمی در کنترل بیولوژیک آفات مختلف، ازجمله تریپس پیاز، Thrips tabaci Lind.، ایفا نمایند. در این پژوهش، آغازگرهای...
Human chitotriosidase (HCHT) is involved in immune response to chitin-containing pathogens in humans. The enzyme is able to degrade chitooligosaccharides as well as crystalline chitin. The catalytic domain of HCHT is connected to the carbohydrate binding module (CBM) through a flexible hinge region. In humans, two active isoforms of HCHT are found-the full length enzyme and its truncated versio...
Leprosy, an infectious disease caused by Mycobacterium leprae, affects millions of people worldwide. However, little is known regarding its molecular pathophysiological mechanisms. In this study, a comprehensive assessment of human mRNA was performed on leprosy skin lesions by using DNA chip microarrays, which included the entire spectrum of the disease along with its reactional states. Sixty-s...
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