Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 26
Book Description
Seed Trade Buyers Guide ...
Author: Professional Gardener
Author: Lectins
Author: Nathan SharonPublisher: Springer
ISBN: 9789401060295
Category : Science
Languages : en
Pages : 127
Book Description
A characteristic property of most, or perhaps all, proteins is their ability to combine specifically and reversibly with various substances. Well known examples are enzymes that bind substrates and inhibitors, and antibodies that bind antigens. This book deals with lectins, a class of proteins that bind carbohydrates. Another characteristic property of lectins is that they agglutinate cells or precipitate polysaccharides and glycoproteins. This is because lectins are polyvalent, i.e. each lectin molecule has at least two carbohydrate binding sites to allow crosslinking between cells (by combining with sugars on their surfaces) or between sugar containing macromolecules. The agglutinating and precipitating activities of lectins are very similar to those of antibodies. They can likewise be specifically inhibited by low molecular weight compounds (haptens), which in the case of lectins are sugars or sugar containing compounds (Fig. 1.1). Not surprisingly, therefore, many of the methods used in lectin research are based on immunochemical techniques. Nevertheless, lectins are different from antibodies in several important aspects. Many lectins are found in plants, microorganisms and viruses, which do not synthesize immunoglobulins. In fact, they are found in almost all living organisms (Table 1.1) and are not confined to specific organs or tissues. Another marked difference between the two classes of compound is that antibodies are structurally similar, whereas lectins are structurally diverse. In general, lectins are oligomeric proteins composed of subunits, usually with one sugar binding site per subunit.
Effect of Soil Applications of Insecticides on the Growth and Yield of Vegetable Crops
Author: M. W. StonePublisher:
ISBN:
Category : Insecticides
Languages : en
Pages : 776
Book Description
Publications of the National Bureau of Standards, 1966-1967
Author: United States. National Bureau of StandardsPublisher:
ISBN:
Category :
Languages : en
Pages : 228
Book Description
Modern Transfusion Medicine
Author: Derwood PamphilonPublisher: CRC Press
ISBN: 9780849389221
Category : Medical
Languages : en
Pages : 296
Book Description
Modern Transfusion Medicine is an ideal source of easy reading and reference for those who require succinct, up-to-date information on the practicalities of transfusion medicine. It examines the collection, preparation, clinical uses, and adverse effects of blood and its components. Written by experts to bridge the gap between specialist monographs and traditional, theoretical textbooks, this compact and invaluable reference contains a wide body of current knowledge previously unpublished as a single volume.
The Mexican Bean Beetle
Author: John J. DavisPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 20
Book Description
Technical News Bulletin
Author: Chemical Triggering
Author: Gebran J. SabongiPublisher: Springer Science & Business Media
ISBN: 1461309077
Category : Science
Languages : en
Pages : 291
Book Description
Chemical reactions which can, on demand, be switched on and off are valuable for industrial applications. In order to make the best use ofthese reactions, it is essential to have them readily available for a research chemist. The chemical literature, in general, has not yet identified or grouped such reactions. However, their existence is relatively abundant. This book is meant as a survey ofthose reactions which have potential utility in industrially useful processes. These reactions are grouped under the title ofchemical release reactions which can be triggered by heat, light, electric current, etc., to release a specific compound from, or change in the physical or chemical properties of, a unimolecular reactant. The book is divided into chapters covering ways to trigger the release of certain chemicals. Each chapter is further divided into sections, each beginning with a brief introduction ofanalogies ofthe discussed reactions and of how they were used in reported industrial processes. This survey is not meant to be absolute or exhaustive but rather to be directive, to be as complete as possible, and to provide food for further thought.
Cockroaches
Author: United States. Science and Education AdministrationPublisher:
ISBN:
Category : Cockroaches
Languages : en
Pages : 12
Book Description