Báo cáo khoa học: The metabolic role and evolution of L-arabinitol 4-dehydrogenase of Hypocrea jecorina potx

... genes. On the other hand, the lack of growth of the wildtype strain on D -allitol and L -iditol may either be due to a lack of uptake of these hexitols, or due to alackoflad1 expression by these ... formation of heterologous proteins under the control signals of cellulase promoters [9,10]. The metabolism of D -galactose and its regulation is therefore of interest...

Ngày tải lên: 07/03/2014, 15:20

... footprinting. Loss of the two pocket proteins leads to deregulation of the B-Myb promoter during the cell cycle. Re-intro- duction of p107, and to some extent also p130, causes repression of the B-Myb ... located upstream of the CDE-like site [46]. These observations and the fact that activation does not rely on CCAAT-boxes, NF-Y or Sp1 proteins, leave open the que...

Ngày tải lên: 16/02/2014, 09:20

... presenting the pulse of Src activity in the plane of the inactive and active fractions, s i and s 1 . If the duration of the stimulus exceeds the critical value, the trajectory in the (s i , ... conformation, the SH2 domain binds to pY i on the C-terminal tail, and the Src homology 3 (SH3) domain binds to the linker between the SH2 and kinase domains at...

Ngày tải lên: 18/02/2014, 11:20

... has Fig. 5. Analysis of the enzymatic activity of His-CoaB R206Q and A276V. The synthesis of 4¢-phosphopantothenoyl-CMP (–cysteine, upper part of the figure) and of 4¢-phosphopantothenoylcysteine (+ ... from D -pantothenate. The Dfp flavoprotein catalyzes the synthe- sis of the coenzyme A precursor 4¢-phosphopantetheine from 4¢-phosphopantothenate and cysteine usin...

Ngày tải lên: 19/02/2014, 12:20

... specification of the mean- ing of the past-tense sentence "John ate a cake" involves the fact that the time of the main event - in this case, the cake-eating event - precedes the time of utterance ... utterance; the main event, or the event being described by the main verb of the sentence; the perfecg event; and the progressivJe event...

Ngày tải lên: 21/02/2014, 20:20

... web- site and the data will be released by the end of Au- gust in several formats. 2 Frame Semantics and FrameNet II 2.1 Frame Semantics in Theory and Practice The development of the theory of Frame ... triplet of labels, one for the FE name, one for the phrase type and one for the grammatical function of the constituent with regard to the target. But the...

Ngày tải lên: 08/03/2014, 04:22

... Koenig and Davis (2000) these are predicted to link off the value of the KEY attribute. 3.1 The verbs giefien and fallen Following the lexical list hypothesis of Koenig and Davis (2000), according ... propose that the semantic prop- erties of the arguments of one of the most repre- sentative verbs of the removal predicates class in German, the verb wi...

Ngày tải lên: 17/03/2014, 22:20

... inspection of the crystal structures of members of the plant, fungal and bacterial superfamily show the existence of a hydrogen bond between the distal His and an Asn (Fig. 1) [3–5]. The corresponding ... formation) and cyanide binding, it is reasonable to assume that the disruption of the H-bond makes the distal His less basic. As a consequence the pK a valu...

Ngày tải lên: 23/03/2014, 21:20

... habit of hemato- phagy. The presence of anticoagulants in the salivary glands of the leech, Hirudo medicinalis, was originally discovered by Haycraft in 1884 and led to the isola- tion of hirudin, ... number of thrombi consisting of one to three platelets were observed in the presence of 6D1 (Fig. 7), whereas the number of these small thrombi was significantly red...

Ngày tải lên: 30/03/2014, 09:20

... the pos- sibility of having actual events standing in the part -of relation to hypothetical super-events. This treatment extends and refines those of Moens and Steedman (1988) and Jackendoff ... Abstract In the first part of the paper, I present a new treatment of THE IMPERFI~CTIVE PARADOX (Dowty 1979) for the restricted case of trajectory- of- motion even...

Ngày tải lên: 31/03/2014, 06:20