peptide

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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 ?
A P-strand is a stretch of polypeptide chain typically 3 to 10 amino acids long with backbone in an extended conformation.
The bond energies vary due to the strain placed on [PHI] and [PSI] angles of the amino acids in polypeptide chains and the strain of intramolecular hydrogen bond locations when overlapping occurs.
The refined structure of phosphate-free bovine ribonuclease A consisted of all atoms in the polypeptide chain including hydrogens, 188 water sites with full or partial occupancy, and a single molecule of 2-methyl-2-propanol (Fig.
With sickle cell anemia, there is a defect in one of the polypeptide chains of the globin portion of the molecule.
I was not able to locate an interactive, artistic activity in which students simulate translation; therefore, I devised an activity in which students visit the different parts of a ribosome, perform the steps that build a polypeptide chain, and construct a fully functional protein.
Distinct characteristic of collagen polypeptide chains is repeating triplet sequence Gly-X-Y, in which the X position amino acid is often proline and Y position amino acid is often 4-hydroxyprolinc (6).
Stryker Corporation (Kalamazoo, MI) has patented (1) osteogenic devices comprising a matrix containing substantially pure natural-sourced mammalian osteogenic protein; (2) DNA and amino acid sequences for novel polypeptide chains useful as subunits of dimeric osteogenic proteins; (3) vectors carrying sequences encoding these novel polypeptide chains and host cells transfected with these vectors; (4) methods of producing these polypeptide chains using recombinant DNA technology; (5) antibodies specific for these novel polypeptide chains; (6) osteogenic devices comprising these recombinantly produced proteins in association with an appropriate carrier matrix; and (7) methods of using the osteogenic devices to mimic the natural course of endochondral bone formation in mammals.
The nature of Bence Jones protein: chemical similarities to polypeptide chains of myeloma globulins and normal gamma globulins.
Detroit, MI) has patented a yeast expression system which allows for the inclusion of a plurality of (up to three) modular expression cassettes which may encode multiple polypeptide chains of a heterologous multi-domain protein on a single plasmid (Twin Cassette).
Hemoglobin binding capacity of isolated haptoglobin polypeptide chains.
Under the agreement, Biosite will provide MorphoSys with a non-exclusive revenue-bearing license to practice and allow partners to practice phage display of Fab and/or other antibody molecules comprising two or more polypeptide chains (multi-chain antibodies) for purposes of developing antibodies from MorphoSys' HuCAL antibody libraries.