Báo cáo khoa học: Short hydrogen bonds in proteins Sathyapriya Rajagopal and Saraswathi Vishveshwara pot

... diffraction and X-ray structures. A case study (myoglobin). Short hydrogen bonds in proteins S. Rajagopal and S. Vishveshwara 1832 FEBS Journal 272 (2005) 1819–1832 ª 2005 FEBS Short hydrogen bonds in proteins Sathyapriya ... of the sheet; (e) between a strand and helix; and (f) between the side chains Arg452 and Glu437 of strands. Short hydrogen bonds...

Ngày tải lên: 07/03/2014, 17:20

... by incubating sections in 0.3% hydrogen peroxide in methanol for 30 min at room temperature. Slides were then washed and incubated in a blocking solution accord- ing to the manufacturer’s instructions. ... amino acid in the cata- lytic centre. This latter singular class of proteins, called chitinase-like proteins (CLPs), has been identified only recently in plants [2], mammals...

Ngày tải lên: 19/02/2014, 00:20

Ngày tải lên: 21/02/2014, 20:20

... domain in nucleolin has been reported to bind RNA [42], rDNA [43], the cytokine midkine [19,32] and subset of ribosomal proteins [44]. Accordingly, studies using a combination of CD and infrared ... that nucleolin and the 105 kDa receptor are distinct proteins and, if need be, to assess the relative importance of both proteins in cells. Although hLf binding to nucleolin occur...

Ngày tải lên: 07/03/2014, 15:20

... mitochondrial function [44] and a reduced life span [45,46]. Our findings in b-cells, which are in agreement with findings in yeasts, C. ele- gans, and granulosa and intestinal cells, are in contra- diction ... Cave- olins and lipid rafts are involved in the internalization of various molecules [51,52]. Vessal et al. [29] identified EH domain 2 as a binding partner for PHB, an...

Ngày tải lên: 29/03/2014, 08:20

... that 2,6-diaminopurine was significantly more efficient than adenine in restor- ing the catalytic activity. In an attempt to obtain addi- tional information about the binding of adenine and some of ... was incubated in the presence of 6 mm Mg 2+ and in the presence of adenine or one of its analogs, either alone or in combination in I/V i (picomole·min –1 ) A B Fig. 9. In ue...

Ngày tải lên: 07/03/2014, 00:20

... clearly in accordance with the presence in AThDP and AThTP of a thiamine and an adenine moiety, as compared with thiamine and adenosine NMR data. The presence of three linked phosphates in AThTP ... consistently found in mammalian tissues and some cell lines. Using HPLC, we show for the first time that adenosine thiamine diphosphate may also occur in small amounts in E. col...

Ngày tải lên: 07/03/2014, 01:20

... presence of indices in the lexicon, so we can handle anaphoric links by co-indexing. For a proper understanding of the translation in- structions one should bear in mind the distinction between ... up index (= antecedent index) and dindex for down index (= anaphor index). Complex categories are built with / and \ and the constraints on feature uni- fication in the usual...

Ngày tải lên: 09/03/2014, 01:20

... cluster memberships and not labels. Instead we compute a one-to-one mapping between our induced lexical items and the gold standard, maximizing the agree- ment between the two (Haghighi and Klein, 2006). Using ... current in its particular environment. The output can be the empty string  , in which case current is deleted. The machine can also insert char- acters at any point in...

Ngày tải lên: 16/03/2014, 19:20

... Linguistics Online Plagiarism Detection Through Exploiting Lexical, Syntactic, and Semantic Information Wan-Yu Lin Nanyun Peng Chun-Chao Yen Shou-de Lin Graduate Institute of Networking and Multimedia, ... University Institute of Computational Linguistic, Peking University Graduate Institute of Networking and Multimedia, National Taiwan University Graduate Institute o...

Ngày tải lên: 23/03/2014, 14:20