Back
to BiopharmaceuticalGlossaries.com
You are here Biopharmaceutical/
Genomics glossaries
Homepage/Search > Biology>Proteins> Technologies >Glycosciences Pharmaceutical
Glycosciences glossary & taxonomy
Related glossaries include Biomolecules,
Proteins,, Sequences, DNA & beyond
carbohydrate binding proteins: Protein
categories carbohydrate
function: Carbohydrates have several functions in cells. They are an
excellent source of energy for the many different activities going on in our
cells. Some carbohydrates may have a structural function. For example, the
material that makes plants stand tall and gives wood its tough properties is a polymer
form of glucose known as cellulose.
Other types of sugar polymers make up the stored forms of energy known as starch
and glycogen.
... Carbohydrates are essential for cells to
communicate with each other. They also help cells adhere to each other and the
material surrounding the cells in the body. The ability of the body to defend
itself against invading microbes and the removal of foreign material from the
body (such as the capture of dust and pollen by the mucus in our nose and
throat) is also dependent on the properties of carbohydrates. CancerQuest,
Emory Winship Cancer Center, Carbohydrate Function 2010 http://www.cancerquest.org/carbohydrate-function carbohydrate sequence:
The sequence of carbohydrates within POLYSACCHARIDES,
GLYCOPROTEINS, and GLYCOLIPIDS. MeSH, 1980 carbohydrate
structure: Wikipedia http://en.wikipedia.org/wiki/Polysaccharide
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 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:
The Consortium for Functional Glycomics (CFG) is a
large research initiative funded by NIGMS
to define the paradigms by which protein-carbohydrate interactions mediate cell
communication. http://www.functionalglycomics.org/static/consortium/consortium.shtml
Google = about 297 Oct. 18, 2002
glycans: See polysaccharides 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/ 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).
Scope note of Glycobiology, Oxford Univ. Press http://glycob.oxfordjournals.org/
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, about 8,590 Mar 17 2011
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 glycoimmunology: There
are three main research themes being explored by the Glycoimmunology group:
carbohydrate immunochemistry and vaccine design, carbohydrate-based inhibitor
synthesis, and carbohydrate immunology. Specific projects focus on immune
targeting of cancer cells via the bioengineering of their surface sialic acid;
the control of cancer metastasis via the manipulation and targeting of tumor
surface carbohydrate; physical and immunochemical mapping of protective
sialylated epitopes; the synthesis of small molecule inhibitors of
neurominidases and sialytransferases, and carbohydrate-based disease modifying
approaches for Multiple Sclerosis. Immunobiology, National Research Council
Canada 2010 http://www.nrc-cnrc.gc.ca/eng/programs/ibs/immunobiology/glycoimmunology/glycoimmunology.html Our group
"Glycoimmunology", sponsored by the Federal Ministry of Education and
Research (BMBF) since February 2009, focuses on the impact of complex
oligosaccharide structures on inflammatory processes in the body. In our immune
system, there are different classes of carbohydrate-binding receptors (lectins)
that recognize specific glycan structures on glycoproteins and glycolipids.
C-type lectin receptors (CLRs) represent a large lectin receptor superfamily
predominantly expressed on cells of the innate immunity (see figure). CLRs
recognize conserved glycan structures on pathogens and play a crucial role in
the initiation of a protective immune response during infections. Furthermore,
they are important for the maintenance of tolerance to autoantigens.
Glycoimmunology Max Planck Institute of Colloids and Interfaces, Potsdam,
Germany 2011 http://www.mpikg.mpg.de/english/025-BiomolecularSystems/Arbeitsgruppen/Glycobiology/Glycoimmunology/index.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 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. 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:
Recent
advances in peptide synthesis can allow the preparation of authentic
neoglycopeptides by using glycosylated amino acids as building blocks, thus
avoiding the need to express the protein in a cell system. Applications of
neoglycopeptides can be found in the targeting and translocation of
oligonucleotides. The sugar moiety would be responsible for targeting specific
cells, while the peptide would carry out the translocation of the
oligonucleotides. Biosynthesis Neoglycoproteins and Neoglycopeptides http://www.biosyn.com/tew.aspx?qid=167 oligosaccharide chips: See Microarrays under
glycochips 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. 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]
sugar amino acid hybrids SAAHs: Pharmaceutical
biology glossary
Bibliography
How
to look for other unfamiliar terms
IUPAC definitions are reprinted with the permission of
the International Union of Pure and Applied Chemistry.
Evolving Terminology for Emerging Technologies
Comments? Questions?
Revisions? mchitty@healthtech.com
Last revised March 23, 2012
<%end if%>
carbohydrate chips: Microarrays
& protein chips categories
Ricki Lewis, "Unraveling complex carbohydrates" Scientist 14 (6):
16, Mar. 20, 2000 http://www.the-scientist.com/yr2000/mar/research_000320.html
glyco array: Microarrays
categories
glycoproteins: Proteins glossaryMitsubishi 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
oligosaccharide microarrays: Microarrays
categories
Google = about 2 Oct. 18, 2002
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