Báo cáo Y học: Shifted positioning of the anticodon nucleotide residues of amber suppressor tRNA species by Escherichia coli arginyl-tRNA synthetase pdf

... Shifted positioning of the anticodon nucleotide residues of amber suppressor tRNA species by Escherichia coli arginyl -tRNA synthetase Daisuke Kiga 1,2 , Kensaku ... the backbones of the nucleotide residues in positions 39–41 within the anticodon stem of the tRNA (Fig. 2). Upon binding of the anticodon of the wild-type tRNA Arg...

Ngày tải lên: 31/03/2014, 23:20

... properties of the primer independent synthesis of poly(A), catalyzed by the yeast poly(A) polymerase are presented. The commercial enzyme from yeast, in contrast to theenzymefromEscherichia coli, ... of synthesis of poly(A) by the E.colipoly(A) polymerase, we did not observed adenyly- lation of guanosine, GDP or Gp 4 G by the yeast enzyme. In the absence or presen...

Ngày tải lên: 21/02/2014, 01:21

... are superimposed in the mutant NNIBP. The cyclopropyl- group of MSC194 and the methyl group of PNU142721 partly overlap the trifluoromethyl group of Efavirenz. Furthermore, wing2 composed of the heterocyclic ... alue than obtained by others [9]. T his may be due to the use of homopolymeric rC-dG template in the assay. The assay shows that PNU142721 is the most pot...

Ngày tải lên: 18/03/2014, 01:20

... risk of type 2 diabetes mellitus, dyslipidemia, hypertension, stroke, ischemic heart disease and early mortality [6-9]. The authors concluded that the preva- lence of obesity in this study of outpatients ... QTc interval may not reliably predict the risk for arrhythmia; however, an examination of the ECG by a cardiologist for other signs of arrhythmia may facilitate a more...

Ngày tải lên: 25/10/2012, 10:51

... pathogenesis of AC. The findings in our case indicate that early neuroimaging is mandatory in the counterpart of the sympto- matic patient with AC, irrespective of the absence of symptoms. Key words: ... an uneventful pregnancy of a healthy 24-year-old mother. They have no family history of genetic diseases. Both had Apgar scores of 9/9 at 1 minute and 9/9 at 5 minu...

Ngày tải lên: 25/10/2012, 11:00

... of body or tail of the pancreas. For tumors of SPT located in the neck and body of the pancreas, resection of the mid- portion of the pancreas and the mass with preserving the rim of the head ... age of 39 years, which is significantly older than in the other reported series. 7 Literatures showed the head and tail of the pancreas were the prefer...

Ngày tải lên: 25/10/2012, 11:40

... PHC data of the statements made by the mid-wife in her records of the check-up of the mothers during the pregnancy (17). In the follow-up at the age of seven, n= 191 children of the defined ... significant, chance of not reporting asthma at the age of ten was also indicated. A renewed analysis of the medical records in the NA group by one of us...

Ngày tải lên: 26/10/2012, 09:48

... with their pets need not represent any risk for infection with Toxoplasma gondii. Cats are the definitive host of T. gondii; they are the only animals that pass oocysts in their feces. They become ... Veterinarians are often faced with the need to explain to their clients that it is not necessary, for example, to give away one’s cat during pregnancy and that if they follow a few...

Ngày tải lên: 03/11/2012, 11:06

... 8C. Then 0.1 vol. of a solution of 0.5 M sodium acetate (pH 5.0) was added and the activity of the enzyme was measured by the dinitrosalicylic acid method. Inhibition of the enzyme activity by ... soybean b-amylase (Cys82, Cys97, Cys208 and Cys343). On the analogy of the soybean b-amylase, the active site of the C. sepium b-amylase most probably consists of a...

Ngày tải lên: 22/02/2014, 07:20

... spect- rometry [14]. Alternatively the mixed anhydride interme- diates can be detected by the formation of stable derivatives of the catalytic glutamate and hydroxamic acids [15] or indirectly by oxygen ... and the gene encoding the enzyme has been cloned and sequenced. The enzyme was rapidly and irre- versibly inactivated by sodium borohydride o r h ydroxyl- amine in t...

Ngày tải lên: 17/03/2014, 17:20