Acids

Acids and Bases Acids are substances that donate protons (hydrogen ions, H+) to bases. Bases are substances that accept protons from acids. Full article ...

Amino acids are the small molecules that are put together to make proteins. And so there are 20 different amino acids.

amino acids Organic acids containing an amino (NH2) group; the subunits of protein molecules. There are 20 common amino acids. Source: Curtis, Helena. 1968. Biology. New York, NY. Worth Publishers ...

The Amino Acids (For each amino acid, both the three-letter and single-letter codes are given. CLICK the NAME to see the structural formula) AlanineAlaA hydrophobic ArginineArgR free amino group makes it basic and hydrophilic AsparagineAsnN ...

Dictionary » U » Unsaturated fatty acids Unsaturated fatty acids unsaturated fatty acid (Science: biochemistry) fatty acid with one or more double bonds.

Fatty acids have a long hydrocarbon (carbon and hydrogen) chain with a carboxyl (acid) group. The chains usually contain 16 to 18 carbons.

Amino acids are either used to synthesize proteins and other biomolecules, or oxidized to urea and carbon dioxide as a source of energy.[34] The oxidation pathway starts with the removal of the amino group by a transaminase.

Antacids chemicals consumed by people to react with stomach acid to change the pH of the stomach contents to a neutral pH (anti = against‚ opposite; acid = sour‚ sharp)    Anterior front or head end of an organism (ante = before)    ...

Amino acids: Small molecules that form the building blocks of proteins. Autosome: All chro mosomes except those involved in sex determination. Bacteria: Tiny one-celled organisms.

amino acids - serve as the subunits for proteins and consist of both a carboxylic acid group as well as an amino acid group. base - a molecule that accepts H+ ion (proton) ...

Amino acids are biochemical building blocks. They form short polymer chains called peptides or polypeptides which in turn form structures called proteins.

Amino acids. Basic structural unit of proteins Anadromous fish. Fish that spends most of its life feeding in the open ocean but that migrates to spawn in fresh water Anoxic. Lacking oxygen.

Amino acids: Building blocks of peptides. Each amino acid is encoded by DNA. See Amino Acids and Biochemical Grouping of Amino Acids. Amorph (null allele): A mutation that leads to complete loss of function.

Amino acids - the 20 basic building blocks of proteins, consisting of the basic formula nh2-chr-cooh, where "r" is the side chain which defines the amino acid.

amino acids The subunits (monomers) from which proteins (polymers) are assembled. Each amino acid consists of an amino functional group, and a carboxyl acid group, and differs from other amino acids by the composition of an R group. PICTURE ...

Fatty acids which are subunits of many lipids consist of long chains of carbon and hydrogen. The number of carbons in the chain varies but is always a multiple of two.

Nucleic Acids Sequence Search Page has added BEAUTY-X, a BLASTX version of BEAUTY that adds sequence family membership and conserved and annotated domain information to BLAST searches.

Nucleic acids. The two nucleic acids, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), are made up of long chains of molecules called nucleotides. See DNA, RNA, Nucleotides.

The amino acids that an animal cannot synthesize itself and must obtain from food. Eight amino acids are essential in the human adult. estivation ...

Essential fatty acids that use the same enzymes as omega-3 fatty acids to produce their final products. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...

Two or more amino acids joined by a bond called a "peptide bond." See also: polypeptide Phage A virus for which the natural host is a bacterial cell.

A group of three nucleotides that specifies addition of one of the 20 amino acids during translation of an mRNA into a polypeptide. Strings of codons form genes and strings of genes form chromosomes.

Amino acid sequence -- the linear order of the amino acids in a protein or peptide.

peptide Two or more amino acids covalently joined by peptide bonds. peptide bond A planar, amide linkage between the a-amino group of one amino acid and the a-carboxyl group of another, with the elimination of a molecule of water.

5' or 3' end The nucleoside residues which form nucleic acids are joined by phosphodiester linkages between the 3' C atom of one ribose moiety and the 5' C atom of the next.

Polymerase, DNA or RNA Enzymes that catalyse the synthesis of nucleic acids on preexisting nucleic acid templates, assembling RNA from ribonucleotides or DNA from deoxyribonucleotides. Polymorphism A Difference in DNA sequence among individuals.

Superoxide initiates oxidative damage to phospholipids, proteins and nucleic acids. This damage may be a major cause of degenerative disease and aging.

Alterations in amino acids that may be distant from each other in the primary sequence can lead to changes in folding.

This technique was used, for example, in the work of Steffen Schulze-Kremer, who wrote a genetic algorithm to predict the three-dimensional structure of a protein based on the sequence of amino acids that go into it (Mitchell 1996, p. 62).

The tag could be a few amino acids, which are then used as a chemical tag on the protein.

Nuclease: An enzyme which degrades nucleic acids. A nuclease can be DNA-specific (a DNase), RNA-specific (RNase) or non-specific.

Adaptor molecules which translate the triplet code from the mRNA sequence into the corresponding chain of amino acids. tRNAs are short (about 74-95 bases), single-stranded RNA molecules that contain a high proportion of modified nucleosides.

The sequence of nucleotides, coded in triplets (codons) along the mRNA, that determines the sequence of amino acids in protein synthesis.

A long chain of amino acids joined by peptide bonds. Cf. peptide. Related Terms: Amino acid Any of a class of 20 molecules that are combined to form proteins in living things.

Nucleic acids are conveniently labelled by incorporating radioactive isotopes of phosphorous (32P or 33P) into their sugar phosphate backbones, proteins may be labelled by incorporating a radioactive isotope of sulphur (35S)into methionine residues.

With refer to nucleic acids, it refers to the conversion from double-stranded to the single-stranded state, often achieved by heating or alkaline conditions. This is also called "melting" DNA.

- A complex biological molecule composed of a chain of units called amino acids.

Molecular biology: The study of proteins and nucleic acids, substances that make up the living world, their structures and their relationships to biochemical activity; ...

fatty acid Any of a series of saturated organic acids having the general formula CnH2nO2, occurs in natural fats of animals and plants. fault A crack in the earth's crust usually formed when two pieces of crust are moving past each other.

A highly conserved region in a homeotic gene composed of 180 bases (60 amino acids) that specifies a protein domain (the homeodomain) that serves as a master genetic regulatory element in cell differentiation during development in species as diverse ...

Pyrimidine: A nitrogen containing, single ring compound that occurs in nucleic acids. In DNA molecules, the pyrimidines are cytosine and thymine. Radioactive phosphorus (32P): radioactive isotope of 31P, an element found in DNA molecules.

RNA molecules which bond with amino acids and transfer them to ribosomes, where protein synthesis is completed. Source : PhRMA Genomics Transgenic ...

nucleotide -- unit from which nucleic acids are constructed by polymerization. It contains a sugar, a phosphate group, and an organic base. ATP is a nucleotide.

A class of small RNAs used by the cell to carry amino acids to the enzyme complex (the ribosome) which builds proteins, using an mRNA as a guide. Other Resources PubMed Google ...

A small water-insoluble biomolecule generally containing fatty acids, sterols, or isoprenoid compounds. Was this definition helpful? Would you have liked more information?

fat (triacylglycerol) A biological compound consisting of three fatty acids linked to one glycerol molecule. femur The thigh bone of tetrapods.

amino acid sequence Amino acid sequences for proteins from the start of translation to the terminator. Unless specifically noted, the sequences contain all amino acids present before any post translational modification occurs (e.g.

Protein - a complex molecule found in numerous cellular structures that is composed of amino acids Protist cell - kingdom containing organisms with eukaryotic cells that are unicellular and multicellular and reproduce sexually and asexually ...

See also: Protein, Amino acid, Trans, Proteins, Molecule