Enzyme

Science / Genetics / Enzyme: A protein that acts as a catalyst, speeding the rate at which a biochemical reaction proceeds but not altering the direction or nature of the reaction.
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Coenzymes

Science / Biology / Coenzymes: Chemicals required by a number of enzymes for proper functioning; also known as enzyme cofactors. MORE

Coenzyme

Health / Fitness / Coenzyme: A substance that works with an enzyme to promote the enzyme's activity. MORE

Endonuclease Restriction Enzyme

Science / Genetics / Endonuclease Restriction Enzyme: A protein that recognizes specific, short nucleotide sequences and cuts dna at those sites. Bacteria contain over 400 such enzymes that recognize and cut more than 100 different dna sequences. MORE

Restriction Enzyme Cutting Site

Science / Genetics / Restriction Enzyme Cutting Site: A specific nucleotide sequence of dna at which a particular restriction enzyme cuts the dna. Some sites occur frequently in dna (e.g., every several hundred base pairs), others much less frequently (r MORE

Restriction-Enzyme Cutting Site

Science / Genetics / Restriction-Enzyme Cutting Site: A specific nucleotide sequence of dna at which a particular restriction enzyme cuts the dna. Some sites occur frequently in dna (e.g., every several hundred base pairs): others much less frequently (r MORE

Restriction Enzymes

Science / Biology / Restriction Enzymes: A series of enzymes that attach to DNA molecules at specific nucleotide sequences and cut both strands of DNA at those sites. A bacterial enzyme that cuts DNA at a specific recognition sequence. This MORE