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2 edition of Structural studies on the Dolichos biflorus seed lectin found in the catalog.

Structural studies on the Dolichos biflorus seed lectin

Sipra Deb

Structural studies on the Dolichos biflorus seed lectin

by Sipra Deb

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  • 23 Currently reading

Published by University of Portsmouth, School of Pharmacy and Biomedical Science in Portsmouth .
Written in English


Edition Notes

Thesis (Ph.D.) - University of Portsmouth, 1997.

StatementSipra Deb.
ID Numbers
Open LibraryOL17069223M

SBA, Phaseolus vulgaris lectin (PHA-E), and the lectins from Dolichos biflorus have been known to contain ragged C-terminal ends. SBA consisted of at least five isolectins. The subunits of the isolectins, SBA-I, SBA-II, and SBA-III, consisted of , , amino acid travel-australia-planning-guide.com by: Legume lectins comprise a structurally related, Ca/Mn-dependent, widespread, abundant and well characterized lectin family when compared to the large number of lectins from other sources described in the literature. Strangely enough, no specific function has been assigned to them aside from a possible role in storage and/or defense. Using a recent and fine-tuned methodology capable of specific Cited by: 9.

A protein isoform, or "protein variant", is a member of a set of highly similar proteins that originate from a single gene or gene family and are the result of genetic differences. While many perform the same or similar biological roles, some isoforms have unique functions. A set of protein isoforms may be formed from alternative splicings, variable promoter usage, or other post. An α-D-galactose-specific lectin from the seeds of jack fruit (Artocarpus integra) has been isolated in pure form by affinity chromatography on immobilised guar gum (a galactomannan).The lectin is shown to be a glycoprotein containing 3% carbohydrate and having a molecular weight of .

Some aspects of serological specificity Some aspects of serological specificity Bird, G.W.G. Karl Landsteiner Karl Landsteiner was a brilliant and versatile scientist. The wide range of his interests is summarized in his book The Specificity of Serological Reactionsâ, which I have always found to be fascinating reading. The ABO system was discovered in by Karl Landsteiner. Based on his assumption of two erythrocyte antigens, A and B, Landsteiner found it possible to Cited by: 1.


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Structural studies on the Dolichos biflorus seed lectin by Sipra Deb Download PDF EPUB FB2

Dec 01,  · Abstract. The in vivo biosynthesis of the Dolichos biflorus seed lectin was studied by pulse-chase labeling experiments using [35 S] methionine and [14 C]glucosamine. These studies demonstrate that each of the two mature lectin subunit types are derived by the processing of separate glycosylated travel-australia-planning-guide.com by: 7.

A lectin from Dolichos biflorus is used to identify cells that belong to the A1 blood group. A lectin from Ulex europaeus is used to identify the H blood group antigen. A lectin from Vicia graminea is used to identify the N blood group antigen.

A lectin from Iberis amara. Jun 30,  · Editor's note: Dr. Nathan Sharon is among an elite vanguard of scientists who pioneered the study of lectin structure and function. Since his early work on soybean agglutinin in the s, Dr. Sharon has published hundreds of papers covering all aspects of lectin recognition, from the structural basis for lectin–carbohydrate interactions to clinical travel-australia-planning-guide.com by: Interestingly, some animal lectins, as discussed elsewhere, have been found to function in innate immunity.

A recent study has shown that the Dolichos biflorus seed lectin is also a lipoxygenase. It will be of interest to see how many other L-type lectins have this activity, which is necessary to initiate the wound-induced defense pathway in Cited by: The structure of Dolichos biflorus lectin (DBL), another Gal‐binding lectin, also from Leguminosae family was reported earlier (Hamelryck et al.

14 PDB code: 1LU1) and has a sequence identity of 69% with DLL‐II DBL forms a soybean lectin (SBA) type of tetramer and is the first lectin for which a structural view of the adenine binding to Cited by: 6. Two differentially expressed lectins from the legume Dolichos biflorus, the seed lectin and a stem and leaf lectin (DB58), were photoaffinity-labeled at their adenine binding sites Structural studies on the Dolichos biflorus seed lectin book the probe.

The lectin isolated from M. axillare (MaL) seeds, and its counterpart, purified from Dolichos biflorus (DBL) seeds, are specific to the carbohydrate N-acethyl-α-D-galactosamine (GalNAc).

This finding offers biotechnological relevance, given that this sugar is an antigenic determinant of blood type A Cited by: 1. Previous studies in our laboratory have shown that the Dolichos biflorus plant contains two similar lectins, a seed lectin and a stem and leaf lectin called DB58, that are present at different.

Studies on the distribution of theDolichos biflorus lectin during the life cycle of the plant have shown that the seed lectin appears at about 27 days after flowering and is localized in the cotyledons. Although this lectin disappears during the absorption of the cotyledons, a related molecule that cross reacts with antibodies to the seed lectin, appears in the stems and leaves of the plant.

Organized into 11 chapters, this book begins with an overview of the chemistry of different disaccharides, including sucrose, maltoses, melibiose, lactose, and cellobiose. This text then explains the use of biosynthetic principles as an aid in structural studies of naturally occurring substances and of.

In molecular biology, the leguminous lectin family is a family of lectin proteins. It is one of the largest lectin families with more than 70 lectins reported in a review in Leguminous lectins consist of two or four subunits, each containing one carbohydrate-binding travel-australia-planning-guide.comro: IPR Immunochemical studies on the combining sites of Forssman hapten reactive hemagglutinins from Dolichos biflorus, Helix pomatia, and Wistaria floribunda Donald A.

Baker, Shunji Sugii, Elvin A. Kabat, R. Murray Ratcliffe, Peter Hermentin, and Raymond U. Lemieux. The structure of Dolichos biflorus lectin (DBL), another Gal-binding lectin, also from Leguminosae family was reported earlier (Hamelryck et al.

PDB code: 1LU1) and has a sequence identity of 69% with DLL-II. DBL forms a soybean lectin (SBA) type of tetramer and is the first lectin for which a structural view of the adenine binding to lectins. Abstract. The binding properties of lectins have been used to study the structural and functional role of cell surface carbohydrates (1–6), to detect sugar moieties on normal and neoplastic cell surfaces (1), to isolate mutants resistant to the cytotoxic action of some lectins (7–10), and to isolate and characterize glycoconjugates (5, 11–13A).Cited by: Lectin-Carbohydrate Interactions in Model and Biological Membrane Systems and Etzler, M.

E.,Production and characterization of a monoclonal antibody against the seed lectin of the Dolichos biflorus plant.

Biol. Mantsch, H. H., Young, N. M., and Bundle, D. R.,Carbon nuclear magnetic resonance studies on lectin Cited by: 9. Nov 01,  · The roots of the legume Dolichos biflorus contain a lectin/nucleotide phosphohydrolase (Db-LNP) that binds to the Nod factor signals produced by rhizobia that nodulate this plant.

In this study we show that Db-LNP is differentially distributed along the surface of the root axis in a pattern that correlates with the zone of nodulation of the travel-australia-planning-guide.com by: Start studying Blood Bank Purple Book, BOC Blood Bank FINAL, Blood Banking, Lecture 9 (Donor Processing and Component Prep), BB - ASCP Study Set - antibodies, BB - ASCP Study - Misc.

questions, BB For ASCP Exam - Blood Temps and Storage, Blood Bank Temperatures, Bl. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The differences between the two studies were: (1) the pea varieties and (2) the higher temperature (10 °C more) applied by Habiba.

This suggests that, either the effect of heat treatments can vary from one variety to another of the same legume seed, or that the temperature difference enhanced the Cited by: scientists who pioneered the study of lectin structure and function.

Since his early work on soybean agglutinin in the s, Dr. Sharon has published hundreds of papers covering all aspects of lectin recognition, from the structural basis for lectin–carbohydrate interactions to clinical applications. This hydrophobic site binds to adenine and derivatives of the plant hormone cytokinin.

A recent finding has shown that the seed lectin from the legume Dolichos biflorus is also a lipoxygenase. Putative receptors for glycans that play signaling roles in plants have recently been identified. Aug 01,  · Lotus corniculatus Nodulation Specificity Is Changed by the Presence of a Soybean Lectin Gene.

soybean cultivars lacking seed lectin nodulate normally (Pull et al., One possible candidate for such a receptor is a soybean homolog of the lectin, DB46 from Dolichos biflorus, which may be a Nod factor binding protein.Abstract. The term lectin (from Latin = to pick out, to choose) was coined by Boyd and Shapeleigh () to denote a heterogeneous class of (glyco)proteins, primarily of plant origin, possessing different biological activities such as hemagglutination (phytohemagglutinins), blastic transformation of lymphocytes (mitogens), and toxic effects on vertebrate cells (toxins).The lectin properties in Bitter melon perform as insulin like activity, due to its non-specific protein that binds to insulin receptors together.

This lectin reduces the blood glucose level by acting on peripheral tissues. Lectin is an important contributor to the hypoglycemic effect.