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Pharmaceutical Glycosciences glossary & taxonomy
Evolving Terminology for Emerging Technologies
Comments? Questions? Revisions?
mchitty@healthtech.com
Last revised August 12, 2009


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Related glossaries include Biomolecules, Proteins,Sequences, DNA & beyond

carbohydrate binding proteins: Protein categories

carbohydrate chips: Microarrays & protein chips categories

carbohydrate function: 

carbohydrate sequence: The sequence of carbohydrates within POLYSACCHARIDES, GLYCOPROTEINS, and GLYCOLIPIDS. [MeSH, 1980]  

carbohydrate structure: 

carbohydrates:   The largest class of organic compounds, including starches, glycogens, cellulose, gums, and simple sugars. Carbohydrates are composed of carbon, hydrogen, and oxygen in a ratio of Cn(H2O)n. [MeSH] 

It has been estimated that about 0.5-1.0% of the translated mammalian genome participates in oligosaccharide production and function (Varki and Marth 1995). The magnitude of this genomic commitment to glycoconjugate biosynthesis is similar to that of protein phosphorylation, and may have as broad an impact on metazoan biology as the latter. In eukaryotes, protein and lipid glycosylation changes are observed during development, differentiation and importantly, numerous disease states. These differences are even being used as specific markers for diseases. Infectious diseases, and immune response are deeply imbued and dependent on carbohydrate residues. [Center for Structural Biology, Univ. of New Hampshire, US, Oct. 2000] http://glycome.unh.edu/

Related terms: glycobiology, oligosaccharide, polysaccharides, saccharides, saccharomics

complex carbohydrates: Carbohydrates made of two or more sugars. 

Related terms: oligosaccharides, polysaccharides

Ricki Lewis, "Unraveling complex carbohydrates" Scientist 14 (6): 16, Mar. 20, 2000  http://www.the-scientist.com/yr2000/mar/research_000320.html

Consortium for Functional Glycomics:  A large research initiative funded by NIGMS to understand the role of carbohydrate- -protein interactions at the cell surface in cell-cell communication. http://web.mit.edu/glycomics/consortium/ 

functional glycomics:   

Google = about 297 Oct. 18, 2002

glycans: See polysaccharides

glyco array: Microarrays categories

glycobioinformatics:  The biological functions of carbohydrates are still not completely understood. However, it is clear that glycans are fundamental to many biological processes including fertilization, immune defense, viral replications, parasitic infection, cell growth, cell-cell adhesion and inflammation. Glycosylation is one of the most abundant forms of covalent protein and lipid modification. Inspection of protein databases suggest that as many as 70% of proteins have potential N-glycosylation sites. Glycoproteins and glycolipids are major components of the outer surface of mammalian cells. They represent key structures for the interaction of cells with toxins, viruses, bacteria, antibodies and micro-organisms. The spatial structure of glycans provide the driving force for many intermolecular interactions and thus predetermine their function. Their flexibility and dynamics frequently play a key role in biological activity and must be taken into account. Call for papers Expanding proteomics into glycobiology, Pacific Symposium on Biocomputing, Jan 2002, Hawaii http://psb.stanford.edu/psb02/cfp-glycobio.html

Google = about 19 Oct. 18, 2002; about 17 May 5, 2005

glycobiology: The objectives of the Society for Glycobiology shall be to promote knowledge, encourage research, and to stimulate personal communications, in an inter- disciplinary sense, using as a common meeting ground an interest in the complex carbohydrates of glycoproteins, glycolipids, glycosaminoglycans, and the biological systems in which they are found. Society for Glycobiology http://www.glycobiology.org/pub/handler.asp  

Includes glycoconjugates (including glycoproteins, glycolipids, proteoglycans or free complex saccharides) or on any aspect of proteins that specifically interact with glycoconjugates (e.g. lectins, glycotransferases, glycosidases). [From the scope notes of Glycobiology, Oxford Univ. Press] http://glycob.oupjournals.org/misc/about.shtml

The biology of sugars and carbohydrates.

Google = about  38,700 Oct. 18, 2002

glycochip®: 

Google = about  30 Oct. 18, 2002, glycochip = about 69; as of Nov 27, 2006 about 398

glycoconjugates: A type of compound consisting of carbohydrate units covalently linked with other types of chemical constituents. [IUPAC Compendium]

Various types of compound consisting of carbohydrates covalently linked with other types of chemical constituent are classified under the general name of glycoconjugates. The major groups of glycoconjugates are the glycoproteins, glycopeptides, peptidoglycans, glycolipids and lipopolysaccharides. [Nomenclature of glycoproteins, glycopeptides and peptidoglycans, IUPAC- IUB Joint Commission on Biochemical Nomenclature, 1985] http://www.chem.qmw.ac.uk/iupac/misc/glycp.html  

glycodendrimers: Multivalent neoglycoconjugates with well-defined structures have considerable potential as inhibitors of cell surface protein-carbohydrate interactions and as tools for studying such recognition processes in vitro. In this review, we outline strategies and synthetic methods for making one such class of neoglycoconjugates based on dendrimers--the so-called glycodendrimers.  Design and synthesis of glycodendrimers. Turnbull WB, Stoddart JF  J Biotechnol. 2002 May;90(3-4):231-55 .

glycoengineering: Delivery of protein therapeutics often requires frequent injections because of low activity or rapid clearance, thereby placing a burden on patients and caregivers. Using glycoengineering, we have increased and prolonged the activity of proteins, thus allowing reduced frequency of administration. Glycosylation analogs with new N-linked glycosylation consensus sequences introduced into the protein were screened for the presence of additional N-linked carbohydrates and retention of in vitro activity. Suitable consensus sequences were combined in one molecule, resulting in glycosylation analogs of rHuEPO, leptin, and Mpl ligand. All three molecules had substantially increased in vivo activity and prolonged duration of action. Because these proteins were of three different classes (rHuEPO is an N-linked glycoprotein, Mpl ligand an O-linked glycoprotein, and leptin contains no carbohydrate), glycoengineering may be generally applicable as a strategy for increasing the in vivo activity and duration of action of proteins. S. Elliott et. al., Enhancement of therapeutic protein in vivo activities through glycoengineering, Nature Biotechnology 21(4): 414- 421, April 2003

glycogenomics: What is clear from the genomic and structural data is that if we are to harness the latent power of glycogenomics, scientists must consider distant sequence relatives revealed by the sequence families or other sensitive detection methods. GJ Davies, B Henrissat, Structural enzymology of carbohydrate- active enzymes: implications for the post- genomic era. Biochem Soc Trans. 30(2): 291- 297, April 2002 
Google = about 666 Nov 5, 2005

glycogerontology: Molecular Medicine glossary

glycoimmunology: The Glycoimmunology Group has made a significant contribution to the present understanding and knowledge of glycan biosynthesis and function in various cell types. This was and is achieved by studying the molecular genetics, structure and biosynthesis of the glycosyltransferases involved in the biosynthesis of sugar chains on biologically active glycoproteins.

In the coming years, a major research aim of the Glycoimmunology Group is to develop a novel research line in the Netherlands, the so- called "Post- translational Proteomics". This is considered the direct follow-up of the genomics and proteomics approaches. By combining the "glyco- expertise" of the Glycoimmunology Group with cell biology and immunology, a unique and excellent setting is created within the Department of Molecular Biology to explore this field.  Glycoimmunology Group, Molecular  Cell Biology & Immunology, Vrije Universiteit, Amsterdam http://www.med.vu.nl/org/afd/molcel/glycoimmunology.html

glycoinformatics: Development of methods for deciphering the glycocode. Mitsubishi Kagaku Institute of Life Sciences (MITILS) Japan, Annual Report, 2001 http://www.mitils.co.jp/ann_report/main_e01.html

Google = about 8  Oct. 18, 2002; about 23 Sept. 16, 2004

glycolipids: Any compound containing one or more monosaccharide residues bound by a glycosidic linkage to a hydrophobic moiety such as an acylglycerol (see GLYCERIDES), a sphingoid, a ceramide (CERAMIDES) (N-acylsphingoid) or a prenyl phosphate. [MeSH, 1966, from IUPAC's webpage]

glycoconjugate libraries: Combinatorial libraries & synthesis glossary

glycome:  Carbohydrate components of the cell. Analogous to the terms that characterize the genome and proteome, we define the glycome as the total carbohydrate complement.  Where glycomics is an analysis of their patterns of expression as modulated by the environment and the physiological state of the organism.  [Center for Structural Biology, Univ. of New Hampshire, US, 2000] http://glycome.unh.edu/

Google = about  138 Oct. 18, 2002; about 631 Sept. 16, 2004

Glycome Project: Hirabayashi J, Arata Y, Kasai K. Glycome project: Concept, strategy and preliminary application to Caenorhabditis elegans. Proteomics, 1, 295-303, 2001

glycomics: Apart from the obstacles presented by proteomics in the general case, glycobiology- focused proteomics, or glycomics, requires the development of novel approaches and tools directed at the special challenges of glycobiology. Strategies for separation, profiling, quantitation, and detailed characterization of carbohydrate structures are central challenges. Bioinformatics tools are needed for data handling and reduction, correlation of carbohydrate and protein information, recognizing shifts in glycoprotein microheterogeneity, and model building. Synthesis, three- dimensional structural analysis, and a variety of other carbohydrate- specific analytical tools may prove necessary to varying degrees, depending on the global strategies adopted and thematic focus of a center. NCRR National Center for Research Resources, NIH, Integrated Biomedical Technology Research Resources for Proteomics and Glycomics,  RELEASE DATE: July 22, 2002 PA NUMBER: PA-02-132 http://grants.nih.gov/grants/guide/pa-files/PA-02-132.html

The cascade of genetic information does not terminate with proteins but with glycans … diverse glycan structures are significantly related to various biological phenomena … glycans have potential to exhibit structural diversity, whose complexity is far greater than that of nucleic acids or proteins … Unless we adopt a global strategy involving the genome, proteome and glycome, we will never achieve an understanding of the glyco- code, which is probably based on a completely different system from those governing nucleic acids and proteins. J. Hirabayashi, J and K. Kasai “Glycomics, Coming of Age! Trends in Glycosciences and Glycobiology 12  (63): 1-5 Jan 2000]  http://www.gak.co.jp/TIGG/63PDF/GF.pdf 

Google = about  1,440  Oct. 18, 2002; about 7,780 Sept. 16, 2004

Related term: saccharomics

glycomimetic: Molecules which mimic the shape and essential features of an oligosaccharide. [Progen Industries Ltd. Glossary, 2001] http://www.progen.com.au/glossary.cfm

Google = about  73 Oct. 18, 2002, about 40,400 Aug 12, 2009

glycomimetics: A new class of small-molecule drugs, known as glycomimetics. These compounds mimic the bioactive function of carbohydrates and address the drawbacks of carbohydrate leads, namely their low activity and insufficient drug-like properties. From carbohydrate leads to glycomimetic drugs Beat Ernst1 & John L. Magnani1  Nature Reviews Drug Discovery 8, 661-677 (August 2009) | doi:10.1038/nrd2852

Google - about 40,700 Aug 12, 2009

glyconanotechnology:  Carbohydrate-carbohydrate interaction is a reliable and versatile mechanism for cell adhesion and recognition. Glycosphingolipid (GSL) clusters at the cell membrane are mainly involved in this interaction. To investigate carbohydrate-carbohydrate interaction an integrated strategy (Glyconanotechnology) was developed. This strategy includes polyvalent tools (gold glyconanoparticles) mimicking GSL clustering at the cell membrane as well as analytical techniques such as AFM, TEM, and SPR to evaluate the interactions. de la Fuente JM, Penades S, Understanding carbohydrate-carbohydrate interactions by means of glyconanotechnology  Glycoconjugate Journal 2004; 21(3- 4): 149-163

glyconomics: The study of sugar- modifications to proteins that affect structure and function. "Glyconomics" About biotech http://biotech.about.com/cs/glyconomics/

This term is used far less often than the related terms glycobiology and glycotechnology. See FAQ question #3 for quantifying methodology. 

Google = about  37 Oct. 18, 2002; about 37 Sept. 16, 2004

glycopeptides: Proteins which contain carbohydrate groups attached covalently to the polypeptide chain. The protein moiety is the predominant group with the carbohydrate making up only a small percentage of the total weight. MeSH, 1973

glycoprotein microarrays: Microarrays categories

glycoproteins: Proteins glossary

glycoproteomics: Any inflammatory process can be investigated with regard to 1. trigger/ inducing agent, 2. humoral response, 3. cellular response, 4. local tissue manifestations, 5. systemic manifestations. The OGP [Oxford GlycoProteome] research group applies GlycoProteomics technology to all these aspects of inflammatory diseases in different projects. Presently we are focussing thereby on the following diseases: Parasite infections, Allergies, Asthma and chronic obstructive pulmonary diseases (COPDs), Virus infections (Hepatitis), and Glycolipid storage diseases. .. Oxford Glyproteomics, Dept. of Biochemistry, Univ. of Oxford, Research Program, 1999] http://www2.bioch.ox.ac.uk/glycob/ogp/#Researchprogramparagraph

Google = about  93 Oct. 18, 2002

glycoscience: Genes encoding a large number of glycosyltransferases involved in the synthesis of the sugar chains have been cloned, and a systematic analysis of their functions has been promoted. Under these circumstances, studies in glycoscience are being focused on examining the significance of various types of sugar chain structures and elucidating the mechanisms of biological regulation for carbohydrate synthesis In Japan, many studies on complex carbohydrates have long been accomplished by members of the research groups supported by the Ministry of Education, Science, Sports and Culture (MESSC). ["From the Genome Research Era to the Glycome: An interview with Professor Naoyuki Taniguch" Glycoforum, Japan 2000] http://www.glycoforum.gr.jp/science/now/now3E.html  

Google = about  8,010 Oct. 18, 2002

Related terms carbohydrates, glycobiology, glycotechnology, oligosaccharide

glycosylation: The addition of oligosaccharides to particular residues on a protein. This modification can be both co- translational and post- translational, occurring in the endoplasmatic reticulum and golgi. Three different forms of glycosylation can be distinguished: N-linked oligosaccharides, O-linked oligosaccharides and glycosyl- phosphatidylinositol (GPI-) anchors. Glossary, Epicyte, 2002  http://www.epicyte.com/  Click on glossary

Broader term: Proteins Glossary post- translational modifications

glycosylation end products, advanced: Products derived from the nonenzymatic reaction of glucose and proteins in vivo that exhibit a yellow- brown pigmentation and an ability to participate in protein- protein cross- linking. These substances are involved in biological processes relating to protein turnover and it is believed that their excessive accumulation contributes to the chronic complications of diabetes mellitus. MeSH, 1993

glycotechnology:   Glycoconjugates existing on cell surfaces play important roles in development, immunity, and as ligands of various molecules. Our research objective is to investigate the chemical information contained in carbohydrates at the molecular level. Mitsubishi Kagaku Institute of Life Sciences (MITILS) Japan  http://www008.upp.so-net.ne.jp/kokanee/front.html

Google = about  1,070 Oct. 18, 2002; 2,030 Sept. 4, 2003

Related terms: carbohydrates, glycobiology, glycoscience, oligosaccharide;  Narrower term: glycotechnology- analytical

glycotechnology- analytical Consortium for Functional Glycomics http://glycomics.scripps.edu/bulletin/

lectins: Proteins that share the common characteristic of binding to carbohydrates. Some ANTIBODIES and carbohydrate-metabolizing proteins (ENZYMES) also bind to carbohydrates, however they are not considered lectins. PLANT LECTINS are carbohydrate- binding proteins that have been primarily identified by their hemagglutinating activity (HEMAGGLUTININS). However, a variety of lectins occur in animal species where they serve diverse array of functions through specific carbohydrate recognition. MeSH 2003

neoglycopeptides:  

oligosaccharide chips: See Microarrays under glycochips

oligosaccharide microarrays: Microarrays categories

oligosaccharides:  Carbohydrates consisting of between two and ten MONOSACCHARIDES connected by either an alpha- or beta- glycosidic link. They are found throughout nature in both the free and bound form. MeSH

Includes disaccharides, trisaccharides; broader term is polysaccharides

pharmacoglycomics: Still at a very early stage of development, the investigation of the effects of genetic variation on individuals' physiology and response to biological glycosylation.  

Google = about 2 Oct. 18, 2002

polysaccharides:  Compounds consisting of a large number of monosaccharides linked glycosidically. This term is commonly used only for those containing more than ten monosaccharide residues.  Also called glycans. .IUPAC Compendium 

Many non-specialists are confused about the distinction between carbohydrates and polysaccharides, since most common carbohydrates that one comes across in everyday foods are actually polysaccharides. The situation was confused for many years until the 1960s. About 3% of all known organic compounds are carbohydrates, and you won't go far wrong if you take the view that all sugars, things like sugars, and things made from sugars (including polysaccharides) are all carbohydrate.  Saccharomics, UK http://www.saccharomics.com/

protein- carbohydrate interactions: Proteomics glossary

proteoglycan:  A subclass of protein in which the carbohydrate units are polysaccharides that contain amino sugars. The protein is glycosylated by one or more (up to about 100) glycosaminoglycans [linear polymers of up to about 2000 repeating disaccharide units. [IUPAC Compendium] 

Glycoproteins which have a very high polysaccharide content. MeSH, 1977

Related terms: glycoscience, polysaccharides.

saccharides:   Monosaccharides and di-, oligo- and polysaccharides, which are made up of n monosaccharide units linked to each other by a glycosidic bond. Considered by some to be synonymous with carbohydrates. [IUPAC Compendium]

saccharomics:  The study of molecules made from chains of small sugar molecules: "polysaccharides" which are a type of carbohydrate. ... The thing that makes the study of structural polysaccharides (saccharomics) different from genes (genomics) or proteins (proteomics) is that each sugar molecule can join onto the next at up to six points instead of just two. So whereas genes are long chains of symbols, and proteins are long chains of amino acids (then folded up in complicated ways), polysaccharides can take an enormous variety of bizarre conformations, even before folding is taken into account.  [Saccharomics, UK] http://www.saccharomics.com/

Google = about 60 Nov. 15, 2002, about 298 Oct. 25, 2006

Related term: glycomics

sugar amino acid hybrids SAAHs: Pharmaceutical biology glossary

Bibliography
GlycoWord, GlycoForum, Japan, 2001, 100+ terms and subjects. http://www.glycoforum.gr.jp/science/word/wordE.html#indexW  Up- to- the - minute guide to modern glycoscience.
Nomenclature of glycoproteins, glycopeptides and peptidoglycans, IUPAC- IUB Joint Commission on Biochemical Nomenclature, 1985 http://www.chem.qmw.ac.uk/iupac/misc/glycp.html

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