Direct tides

U.S. Patents. This file, produced by Derwent, Inc., covers U.S. patents from 1971 to the present. The database iacludes all bibliographic and front page information and the text of all claims. (Prom 1971 to 1974 the claims from many patents were not available from the United States Patent and Trademark Office (USPTO) source tapes, and therefore are not iacluded.) The complete cl aim text can be searched from 1971 but can be ptinted only from 1982. Tides and patentee names are present ia their original form, aeither expanded nor standardized. There is no enhanced iadexiag. Examiner citations are directly searchable, and USPTO classification is updated when the tapes are received from the Patent Office. 

Within the body of the issued pateat, the tide, B, aow L, is geaerally repeated to maintain clarity (Eig. lb). A field of iaveatioa, M, is thea provided. The field of iaveatioa should direct the reader to the geaeral area of technology to which the iavention relates, and to specific improvements ia the... 

Some nucleases are capable of hydrolyzing a nucleotide only when it is present at a terminal of a molecule these ate tefetted to as exonucleases. Exonucleases act in one direction (3 —> 5 ot 5 —> 30 only. In bacteria, a 3 —> 5 exonuclease is an integral part of the DNA replication machinery and there serves to edit— or proofread—the most recently added deoxynucleo-tide for base-pairing errors. 

Venom exonuclease [EC 3.1.15.1], also known as venom phosphodiesterase, catalyzes the exonucleolytic cleavage of RNA or DNA (preferring single-stranded substrates) in the 3 to 5 direction to yield 5 -phosphomononucleo-tides. Similar enzymes include hog kidney phosphodiesterase and the Lactobacillus exonuclease. See also specific phosphodiesterase J. A. Gerit (1992) The Enzymes, 3rd ed., 20, 95. 

Constable EC, Housecroft CE, Mundwiler S. Metal-directed assembly of cyclometallopep-tides. Dalton Trans 2003 2112-2114. 

Cathodic Protection. Steel can be protected by cathodic current, supplied either from sacrificial anodes or an external direct current source. The method is effective for completely immersed steel—i.e., for surfaces on structures below the low-tide level. Current consumption can be greatly reduced by applying a suitable paint system to the steel before it is immersed in sea water. Such a paint system should be alkali resistant. 

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