An S Sample Clauses

An S group scheme G which is affine as a scheme is called an affine group scheme. = ( ) Assume that G Spec A is an affine group scheme. Note that the describing the group operations m, i and e defined in Definition (1.0.1) is equivalent to ∶ → ⊗ ⊗ describing R-algebra morphisms e∗∶ A → R co-unit, m∗ A A R A co-multiplication, i∗∶ A → A co-inverse = ( ∈ | = } ⊂ satisfying various identities corresponding to the group axioms for m, i and e. ( [ ]/( − ))

An S. C Technician having acquired S&C Maintainer's Helper seniority will be accorded a S&C Maintainer's seniority date at the time a S&C Maintainer's Helper who is junior to him in seniority, acquires S&C Maintainer's seniority.

An S. C Maintenance employee who, in order to protect their seniority, must occupy a bulletined temporary position at a headquarters location over fifty (50) kilometers away from their residence will be allowed a per diem allowance of i) The employee does not hold a permanent position or could not have previously done so, ii) The new headquarters location continues to be over fifty (50) kilometers from their residence, iii) The employee has not changed their primary place of residence so as to collect this per diem, and, iv) The employee could not hold a bulletined position at his/her home location (excluding a ▇▇▇▇▇▇▇, Assistant ▇▇▇▇▇▇▇ or ▇▇▇▇▇▇▇ position). v) Any employee who voluntarily changes their place of residence in order to qualify for this expense allowance will not be entitled to this benefit.

An S. E.I.U.-appointed unit member and the Superintendent or his or her designee shall comprise the Professional Growth Committee.

An S cerevisiae strain (MaV203: pGADGAL) that contains the transcriptional activator protein GAL4 with two amber mutated permissive sites was used for library screening. In the positive selection, because of a GAL4-controlled URA3 gene, cells that can grow in the presence of non-canonical amino acids and in the absence of uracil are the ones carrying active aaRS mutants, which can aminoacylate tRNA with non-canonical amino acids and/or canonical amino acids. Consequently, addition of 5- FOA and removal of the non-canonical amino acids in the negative selection, cells that survived are expressing aaRS specific to the desired analogue because 5-FOA is converted to a toxic product with the expression of URA3 gene. In this way, more than 20 unnatural amino acids have been added to the yeast genetic code in response to UAG codon. (Liu and ▇▇▇▇▇▇▇, 2010) The addition of unnatural amino acids to the genetic code provides another possibility in the evolution of proteins with novel properties. However, in the approach of expanding genetic code in yeast, the scope of current orthogonal pairs is still limited to mutant E. coli tRNATyr/TyrRS, a human initiator tRNAfMet/E. coli GlnRS and M. barkeri tRNAPyl/PylRS pairs. (Chin et al., 2003; ▇▇▇▇▇▇▇ et al., 2010; ▇▇▇▇▇ et al., 2001). In addition, non-canonical amino acids have been inserted into proteins only in response to the amber (UAG) codon. Therefore, in Chapter 2 of this thesis, we describe the methodology of constructing an orthogonal Mycoplasma genetalium tryptophanyl-tRNA synthetase (MgenTrpRS)/MgentRNATrp) pair for incorporation of non-canonical amino acids in S. cerevisiae cell in response to opal (UGA) codon. In chapter 3, a library selection scheme for the identification of mutant MgenTrpRS variants with altered selectivity for the non-canonical amino acids, 5-hydroxy-tryptophan and 5-methoxy- tryptophan, is investigated and the spectroscopic properties of enhanced cyan fluorescent protein (ECFP) containing these non-canonical amino acids in the chromophore is described.