26S regulator

Finally, this section has focused almost entirely on axonal transport, but dendritic transport also occurs [25]. Since dendrites usually include postsynaptic regions while most axons terminate in presynaptic elements, the dendritic and axonal transport each receive a number of unique proteins. An added level of complexity for intraneuronal transport phenomena is the intriguing observation that mRNA is routed into dendrites where it is implicated in local protein synthesis at postsynaptic sites, but ribosomal components and mRNA are largely excluded from axonal domains [26]. Regulation of protein synthesis in dendritic compartments is an important mechanism is synaptic plasticity [27,28]. The importance of dendritic mRNA transport and local protein synthesis is underscored by the demonstration that the mutation associated with Fragile X syndrome affects a protein important for transport and localization of mRNA in dendrites [27, 29], Similar processes of mRNA transport have been described in glial cells [30]. 

Figure 20.26 Regulation of the activity of aminoacyl-tRNA synthetases and hence the rate of peptide synthesis by the concentration of free tRNAs, and regulation of activity of citrate synthase and hence the rate of the Krebs cycle by the concentration of oxaloacetate. Note that there are two positions in which external regulation occurs in the peptide sythetase pathway and two positions in the Krebs cycle (Chapter 9).

Regulation of the Pyruvate Dehydrogenase Complex In animal tissues, the rate of conversion of pyruvate to acetyl-CoA is regulated by the ratio of active, phosphorylated to inactive, unphosphory-lated PDH complex. Determine what happens to the rate of this reaction when a preparation of rabbit muscle mitochondria containing the PDH complex is treated with (a) pyruvate dehydrogenase kinase, ATP, and NADH (b) pyruvate dehydrogenase phosphatase and Ca2 + (c) malonate. 

Regulation (EC) No 726/2004 of the European Parliament and of the Council of 31 March 2004 laying down Community procedures for the authorization and supervision of medicinal products for human and veterinary use and establishing a European Medicines Agency. OJ L136, 31.03.2004, pi. 

Figure 26 Regulation for bioluminescence in Vibrio harveyi (a) at low cell density and (b) at high cell density.

Figure 24.26. Regulation by Adenylation. (A) A specific tyrosine residue in each subunit in glutamine synthetase is modified by adenylation. (B) Adenylation of tyrosine is catalyzed by a complex of adenylyl transferase (AT) and one form of a regulatory protein (P ). The same enzyme catalyzes deadenylation when it is complexed with the other form (Pq) of the regulatory protein.

Regulation of Cross-bridge Cycling in Smooth Muscle... 

There are 26 Regulations which amend the Regulation (EEC) No. 136/66. The last amendment is Regulation (EC) No. 2826/2000 (entry into force 1/lCOOl). 

Zaipei-3 Young spikes 22-26 Regulation of callus status Zhang et al. (2007)... 

Official Journal ofthe European Union 30.12.2006, L 404/26 Regulation (EC) No. 1925/2006 of The European Parliament and of the Council of 20 December 2006 on the addition of vitamins and minerals and of certain other substances to foods. 

Table 2.26 Regulations Relevant for Resistance to Ionizing Radiation...

Fig. 24.26. Regulation in lysine biosynthesis in Brevibacterium flavum and Corynebacterium glutamicum. (ASA aspartate semialdehyde DHDP dihydrodipicolinate Hse hemoserine DAP diaminopimelate.) (Microbial Technology, 2nd ed., VoL 1, p. 220, Academic Press, New York, 1979.)...

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