peptide


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Related to peptide: peptide bond

peptide

 [pep´tīd]
any member of a class of compounds of low molecular weight that yield two or more amino acids on hydrolysis. They are the constituent parts of proteins and are formed by loss of water from the NH2 and COOH groups of adjacent amino acids. Peptides are known as dipeptides, tripeptides, tetrapeptides, and so on depending on the number of amino acids in the molecule. See also polypeptide.
vasoactive intestinal peptide vasoactive intestinal polypeptide.

pep·tide

(pep'tīd),
A compound of two or more amino acids in which a carboxyl group of one is united with an amino group of another, with the elimination of a molecule of water, thus forming a peptide bond, -CO-NH-; that is, a substituted amide.
See also: polypeptide. Compare: eupeptide bond, isopeptide bond.

peptide

/pep·tide/ (pep´tīd) (pep´tid) any of a class of compounds of low molecular weight that yield two or more amino acids on hydrolysis; known as di-, tri-, tetra-, (etc.) peptides, depending on the number of amino acids in the molecule. Peptides form the constituent parts of proteins.
atrial natriuretic peptide  (ANP) a hormone involved in natriuresis and the regulation of renal and cardiovascular homeostasis.
opioid peptide  opioid (2).

peptide

(pĕp′tīd′)
n.
Any of various natural or synthetic compounds containing two or more amino acids joined by peptide bonds that link the carboxyl group of one amino acid to the amino group of another.

pep·tid′ic (-tĭd′ĭk) adj.
pep·tid′i·cal·ly adv.

peptide

[pep′tīd]
Etymology: Gk, peptein, to digest
a molecular chain compound composed of two or more amino acids joined by peptide bonds. See also amino acid, polypeptide, protein.

peptide

A biomolecule consisting of two or more amino acids joined by a peptide bond, which combine to make proteins.

pep·tide

(pep'tīd)
A compound of two or more amino acids in which a carboxyl group of one is united with an amino group of another, with the elimination of a molecule of water, thus forming a peptide bond, -CO-NH-; i.e., a substituted amide.
Compare: bioregulator

peptide

A chain of two or more AMINO ACIDS linked by peptide bonds between the amino and carboxyl groups of adjacent acids. Large peptides, containing many amino acids, are called polypeptides. Chains of linked polypeptides, are called PROTEINS. Peptides occur widely in the body. Many HORMONES are peptides.

peptide

any of a group of compounds consisting of two or more amino acids linked by chemical bonding. See PEPTIDE BOND, DIPEPTIDE.

pep·tide

(pep'tīd)
Compound of two or more amino acids in which a carboxyl group of one is united with an amino group of another, with the elimination of a molecule of water, thus forming a peptide bond.

peptide,

n a compound of two or more amino acids in which the α-carboxyl group of one is united with the α-amino group of another, with the elimination of a molecule of water, creating a peptide bond —CO—NH—.
Peptostreptococcus
n a genus of nonmotile, anaerobic, chemoor-ganotrophic bacteria found in the oral cavity and intestinal tracts of normal humans. They may be pathogenic and may be found in pyogenic infections, putrefactive war wounds, and appendicitis.

peptide

any of a class of compounds of low molecular weight which yield two or more amino acids on hydrolysis; known as di-, tri-, tetra- etc. peptides, depending on the number of amino acids in the molecule. Peptides form the constituent parts of proteins. See also polypeptide.

leader peptide
a step in the signal hypothesis advanced to explain the mechanisms governing the fate of newly formed polypeptides or secretory proteins.
peptide map
a pattern of peptide fragments, characteristic of a particular protein. Produced by using either proteolytic enzymes such as trypsin or chemicals such as cyanogen bromide to cut proteins at a relatively small number of particular sites, the peptide fragments are then separated by chromatographic or electrophoretic procedures. Called also fingerprint.
peptide-para-aminobenzoic acid test
References in periodicals archive ?
Various peptide vaccines available in market have been made by using different methods of recombinant DNA technology.
True proof of the peptide efficacy comes from appropriate clinical studies.
Much research on host defenses against infection has concentrated on the amino acid sequences of antimicrobial peptides in the belief that the order of the acids and their replication reflect how they work against aberrant cells.
JPT has always been a leading choice for integrated peptide technologies.
Pharmaceutical companies have recognized the commercialization and therapeutic potential of peptide hormones for treating various diseases.
There is a developing understanding that how tightly MHC binds its peptide determines whether you get a T cell response," says team member Lawrence J.
The proteins can be more easily identified after the band or spot is cut out, at which point they are digested with enzymes (typically the pancreatic enzyme trypsin) into smaller peptides.
Although the concept of using peptides (small proteins) as the basis for new antibiotics, or other medications, has been known for some time, peptides have not enjoyed widespread acceptance as pharmaceuticals because the use in vivo could be considerably limited in circumstances where proteases may digest the peptides before they could have an effect on the pathogens.
Peptides are formed through the cleavage of precursor proteins, and Compugen's proprietary peptidome - already consisting of thousands of novel human peptide sequences - is based on predicting cleavage sites in precursor proteins.
Certain peptides secreted by the bacteria themselves bind to a receptor called AgrC and trigger the bacteria to make toxins.
There are currently methods to determine peptide binding to some HLA class II-DR and -DQ molecules.
This program can create additional opportunities for the utilization of Unigene's patented peptide manufacturing and delivery technologies, while enabling us to obtain additional patent protection on the novel peptides themselves.