Spacer, definition

Note 4 The tilt direction varies in a random manner from layer to layer in conventional smectic C mesophases. However it can alternate from layer to layer, as in an antiferro-electric chiral smectic C mesophase (see Definition 5.9, Note 7) and in the smectic C mesophase formed by certain liquid crystal dimers with an odd-number of carbon atoms in the spacers. The recommended symbol for this type of mesophase is SmCa. 

Lj and are the second subunit or protein zinc ligands and Z is the spacer for these ligands. See footnote in Table 1 for other definitions. 

Consider a house in Atlanta, Georgia, that is maintained at 22°C. and has a total of 20 m of window area. The windows are double-door type with wood frames and metal spacers and have a /-factor of 2.5 W/m C (sec Prob, 1-120 for the definition of [/-factor). The winter average temperature of Atlanta is 11.3"C. Determine the average rale of heat loss llirough the windows iu winter. 

An important feature of long spacer zinc-endoproteases like thermolysin, as revealed by comparisons of the free enzyme and that complexed with inhibitors [40,41] is that conformational change is an essential component for catalytic activity. A similar conformational change is also probable [15,18,26] for the short spacer family, although a definite confirmation must await more structural information on equivalent free and inhibited proteins of this class. 

The next step was the precise definition of the sequences involved in the excision process. The basic idea of the deletion model mentioned above was that the instability of the mitochondrial genome of yeast was due to the existence in each genome unit of a number of nucleotide sequences having enough homology to allow illegitimate, unequal recombination to take place. In this respect, clearly the GC clusters were at least as good candidates as the AT spacers. 

---