A small polymer of amino acids, formed by the condensation copolymerization of several amino acids.

a short sequence of amino acids forming part of a protein

Two or more amino acids chemically bonded to form a single molecule.

Fragments of a protein, from two or more amino acids in a chain, much like beaded chain bracelets. When animal meat proteins are digested, they break down first into peptides and then into their amino acid constituents.

A strand of amino acids covalently linked by peptide bonds. These chains can be various lengths of two amino acids (a dipeptide), three amino acids (a tripeptide), a few amino acids, (3-10, generally called oligopeptides), and many amino acids (greater than 10, called polypeptides).

A relatively small polymer of amino acids. Peptides are usually too small to have extensive secondary or tertiary structures.

A short polymer made by linking together amino acid molecules.

a compound of two or more amino acids linked by a peptide bond. Peptides differ from proteins by their size; peptides are shorter. Proteins can be broken down into peptides (this occurs during digestion).

A molecule composed of two or more amino acids. Larger peptides are generally referred to as polypeptides or proteins.

Short chain of amino acids (from two to several dozen); active in cell communication as hormones, neurotransmitters, immunotransmitters, etc.

A small protein fragment.

A short chain of amino acids; peptides form the building blocks of proteins.

an organic compound formed by a combination of amino acids in which the amino group of one amino acid is united with the carboxyl group of another by an amide link, called a peptide bond. (see protein)

a member of a class of low-molecular-weight compounds that yields two or more amino acids on hydrolysis

(Also polypeptide.) Biochemical formed by the linkage of up to about 50 amino acids to form a chain. Longer chains are called proteins. The amino acids are coupled by a peptide bond, a special linkage in which the nitrogen atom of one amino acid binds to the carboxyl carbon atom of another. Many peptides, such as the hormones vasopressin and ACTH, have physiological or antibacterial activity.

Low molecular weight compounds containing two or more amino acids. Peptides form the constituent parts of proteins.

Two or more chemically-linked amino acids.

A polymer of amino acids too short to be considered a protein.

Any member of low molecular weight proteins that yield at least two or more amino acids on hydrolysis. Large peptides containing dozens of amino acids are called proteins.

A short chain of amino acids; see protein.

A small polymer usually containing fewer than 30 amino acids connected by peptide bonds.

A chain of amino acids held together by peptide bonds. The word “peptide” is generally used to describe an amino acid chain that is shorter than a protein.

A very small piece of a protein which can be recognised by T cells and which is sometimes used in vaccines to simulate antibody production. Proteins Proteins are chemicals that are naturally found in all living cells. They perform many functions in a cell ranging from purely structural (they maintain size and shape of cells) to metabolic (they make chemical reactions happen inside cells). Proteins can be found inside the cell and also bound to the exterior surface of the cell. Sometimes, as with hormones, proteins are used to communicate between cells and so are secreted.

a compound of two or more amino acids linked by the carboxyl group of one amino acid to the amino group of the other amino acid. A long chain of peptides is known as a protein.

molecule consisting of a sequence of several amino acids. Can be part of a protein.

A molecule made of two or more linked amino acids. Proteins are made of peptides.

amide combining the amino group of one amino acid with the carboxyl group of another; usually obtained by partial hydrolysis of protein

a fragment of a protein molecule

a fragment of protein consisting of two or more amino acids

a molecule made up of a short string of amino-acid building blocks

an amino acid anti cellulite jeans, which is a building block for collagen and elastin

an amino acid cellulite and coffee, which is a building block for collagen and elastin

a natural chemical made of amino acids strung together that can destroy bacteria by penetrating their membranes

a Natural Protein made up of Amino Acids strung together that destroy powerful viruses and bacteria by penetrating their membranes

an organic compound composed of two or more amino acids, which are the building blocks of proteins

a pair of amino acids bound together in a specific way

a small protein," explains Thierry Abribat, vice-president and chief scientific officer

a specific type of amino acid

a very small molecule made up of a few amino acids

A unique amino acid sequence shown to enhance the synthesis of collagen.

A chain of several amino-acid residues linked by peptide bonds. Longer chains containing tens or hundreds of amino-acid residues are usually called polypeptides.

small to mid sized molecule (range from dipeptide to small proteins with a maximal molecular mass of 20 kDa) composed of amino acids joined by 'peptide bonds'

means a molecule containing many amino acids linked together.

An organic compound containing the group -CONH (see below), examples of which are polypeptides.

Link between two amino acids; peptide also refers to the resulting chain of two or more amino acids.

A substance composed of two or more amino acids.

a compound of two or more amino acids. Often used to describe a small section of a protein.

A few amino acids linked together. Proteins are made of multiple pep tides linked together.

Two or more amino acids are joined by a so-called peptide-bond.

A molecule consisting of 2 to approximately 20 amino acids connected by peptide bonds; a short segment of a larger protein or a completely functional m...

Compounds consisting of two or more amino acids linked together by a chemical process that produces one molecule of water for each joining of one amino acid to another. Peptides are the building blocks of proteins.

Two or more amino acids linked together to form a chain.

a short compound formed by linking two or more amino acids. Proteins are made of multiple peptides.

A molecule consisting of a short chain of amino acids. Longer chains of amino acids are called proteins.

a short chain of amino acids linked by peptide bonds; longer chains are generally called proteins.

Two or more amino acids joined by a linkage called a peptide bond.

A molecule similar to but smaller than a protein. Peptides are made of amino acids, the building blocks of proteins. Many peptides occur naturally in the body, including a variety of hormones.

A compound made from two or more amino acids. Very long chains of amino acids are called proteins.

a substance formed by two or more amino acids.

an amino acid; the basic building block of polypeptides (or proteins).

linkage; the -CO-NH- grouping found in protein.

short chain of linked amino acids. Amino acids are the building blocks of proteins.

A small protein made from a very short chain of amino acids - usually only two or three.

a compound containing two or more amino acids

A molecule derived from two or more amino acids. In the human body, they can be obtained by the partial digestion of proteins.

A compound that is made up of two or more amino acids. Protein molecules are broken down into peptides in the gut and absorbed in that form.

strings of attached amino acids too short to be considered a protein.

a chemical structure with two or more amino acids

A chain of amino acid building blocks strung together. The chain can be two (di-) amino acids, three (tri-) amino acids, or more (poly-) amino acids in length.

Synonymous with protein, a chain of amino acids linked together.

two or more amino acids chained together by a bond called a "peptide bond." A protein is a long chain of amino acids joined together in this way, and therefore is sometimes referred to as a "polypeptide." Some proteins contain more than one polypeptide chain.

A short chain of amino acids joined through their amino and carboxyl groups. In a cyclic peptide, the ends are also joined together to give a circular molecule.  Proteins are longer chains, typically of 50 amino acids.

A molecule consisting of 2 or more amino acids. Peptides are smaller than proteins, which are also chains of amino acids. Molecules small enough to be synthesized from the constituent amino acids are, by convention, called peptides rather than proteins. The dividing line is at about 50 amino acids. Depending on the number of amino acids, peptides are called dipeptides, tripeptides, tetrapeptides, and so on.

The coavlent bond between the amino group of one amino acid and the carboxyl bond of another.

a linear sequence of amino acids (often derived from proteins by degradation, but they can be artificially synthesised)

two or more amino acids linked by peptide bonds.

Any compound containing two or more amino acids. Peptides are combined to form proteins.

See amino acid.

an organic molecule made up of chains of amino acids. Proteins are long peptides.

A peptide is any group of compounds consisting of two or more amino acids linked by chemical bonding. Peptides in the human body can take the function of hormones (e.g. antidiuretic hormone),can form proteins, or may have functions in the digestive process (and therefore may be found throughout the body - in the digestive tract, blood, cells and tissues).

chain of amino acids. A protein is made up of one or more peptides.

any of various amides that are derived from two or more amino acids by combination of the amino group of one acid with the carboxyl group of another, and that are usually obtained by partial hydrolysis of proteins

A compound consisting of 2 or more amino acids. Click here for a detailed description.

A protein fragment or at least two amino acids joined by a peptide bond.

the constituent part of a protein; each peptide consists of at least two amino acids.

Any compound consisting of two or more amino acids, the building blocks of proteins.

A small chain of amino acids (see protein).

A compound of two or more amino acids where the alpha carboxyl group of one is bound to the alpha amino group of another.

Macromolecule consisting of several amino acids linked via amide bonds between their COOH and NH2 groups. Peptides do not necessarily adopt a defined spatial structure (in contrast to proteins), but the difference is blurred.

A protein is a polypeptide and the term peptide is generally applied to small proteins of 5 to 10 amino acids in length (only a few KDs). Ultrafiltration devices (such as Nanosep centrifugal device) with 3K and 10K MWCOs are needed to concentrate peptides.

short chains of amino acids; similar in composition to proteins, but much smaller

A short polymer (~2-10 units) of amino acids.

Small molecular fragments that come from two or more amino acids by combining the amino group of one acid to the carboxyl group of another. They are obtained by partial hydrolysis of proteins.

Small protein molecule.

Any member of a class of compounds of low molecular weight that yield two or more amino acids on hydrolysis. Peptides form the constituent parts of proteins.

A molecule consisting of two or more amino acids. Longer peptides are usually called polypeptides or proteins.

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.