Gourt > Science > Chemistry > Analytical > Bioanalytical Chemistry > Peptides (5)
Peptides (from the Greek πεπτος, "digestible"), are the family of short molecules formed from the linking, in a defined order, of various α-amino acids. The link between one amino acid residue and the next is an amide bond, and is sometimes referred to as a peptide bond.
Proteins are polypeptide molecules. The distinction is that peptides are short and proteins are long. There are several different conventions to determine these, all of which have flaws.
One convention is that those peptide chains that are short enough to be made synthetically from the constituent amino acids are called peptides rather than proteins. However with the advent of better synthetic techniques, peptides as long as hundreds of amino acids can be made, including full proteins like ubiquitin. Native chemical ligation has given access to even longer proteins, and so this convention seems to be outdated.
More on [ Peptide ]
StockProfiler.US: Stock Profiler.US: Updates in Health News: IMGR ... - Trading Markets (press release)
Mon, 25 Aug 2008 15:34:17 -0000
StockProfiler.US: Stock Profiler.US: Updates in Health News: IMGR ...Trading Markets (press release), CA - Aug 25, 2008The collaboration centers on the discovery that peptides contained in spider venom have insecticidal properties. Venomix has isolated and characterized a ...
Protein Misprediction Uncovered By New Technique - Science Daily (press release)
Wed, 27 Aug 2008 04:45:13 -0000
Protein Misprediction Uncovered By New TechniqueScience Daily (press release) - 3 hours agoThere are some exceptions to these rules, as pointed out by Patthy, "Some secreted proteins may truly lack secretory signal peptides since they are subject ...
Health and Beauty: The tan that holds back time... - Halifax Evening Courier
Mon, 25 Aug 2008 08:43:47 -0000
Health and Beauty: The tan that holds back time...Halifax Evening Courier, UK - Aug 25, 2008The anti-ageing tan contains two forms of peptides. One to stimulate melanin formulation within the skin to produce a deeper tan and another to deeply ...
Chemists Make Beds With Soft Landings: Researchers Create Stable ... - Science Daily (press release)
Mon, 18 Aug 2008 13:06:14 -0000
Chemists Make Beds With Soft Landings: Researchers Create Stable ...Science Daily (press release) - Aug 18, 2008The small proteins called peptides are of a variety that normally take the shape of a coiled spring or helix in gas phase. The method used by PNNL's Julia ...
Viral Genetics, Inc. Unveils Potential Mechanism of Action in HIV ... - MarketWatch
Tue, 19 Aug 2008 18:05:21 -0000
Viral Genetics, Inc. Unveils Potential Mechanism of Action in HIV ...MarketWatch - Aug 19, 2008Viral Genetics has and continues to use TNP-1, a mixture of peptides derived from thymic histones, to research HIV/AIDS. When used in six international ...
MDRNA, Inc. Completes Exclusive License Agreement to RNAi Delivery ... - Business Wire (press release)
Tue, 19 Aug 2008 12:02:53 -0000
Business Wire (press release)MDRNA, Inc. Completes Exclusive License Agreement to RNAi Delivery ...Business Wire (press release), CA - Aug 19, 2008“The University of Michigan peptides have unique characteristics that we believe play an important role in improving the efficacy of delivery of RNAi-based ...
EMBL: IEP - Tool for calculating isoelectric point from amino acid sequence, maintained by European Molecular Biology Laboratory, Heidelberg, Germany.
HLA-DR Peptide Binding - Online tool for prediction, for a single letter sequence, including algorithm methodology from UCSF, Fresno, California.
Meta Description: [ HLA-DR Peptide Binding Prediction ]
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ISIS - Databases of BioCatalysis, Protecting Groups, Solid-Phase Synthesis, Chirbase and other chemical data, maintained at Daresbury, Cheshire, England.
Molecular Clocks: Deamidation of Asparaginyl and Glutaminyl Residues in Peptides and Proteins - Review with color illustrations, tables and references to the research literature.
Meta Description: [ Information about the deamidation of asparaginyl and glutaminyl residues in peptides and proteins. ]
PenBase - Curated database devoted to penaeidins, offering comprehensive information about penaeidin properties, function, diversity and nomenclature.
Meta Description: [ PenBase is a curated database devoted to Penaeidins. PenBase provides comprehensive information about penaeidin properties, function, diversity and nomenclature. , Antimicrobial peptides are major components of innate immunity that have been conserved in evolution and found in different phyla of ... ]
Peptaibol - Antibiotic peptide database and tools at Birkbeck College, UL, Bloombury, London.
PeptideMass - Web-based tool for calculating the molecular weight of peptides by sequence, in oxidised, reduced or IAA forms, using its one-letter code, provided by ExPasy, Switzerland.
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Ribosome Elongation Cycle This is a model of the structure of the ribosome during an peptide elongation cycle |
