Science / Chemistry / Enzyme: Protein or protein-based molecules that speed up chemical reactions occurring in living things. Enzymes act as catalysts for a single reaction, converting a specific set of reactants (called substrates) into specific products. Without enzymes life as we know it would be impossible.
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Science / Biology / Coenzymes: Chemicals required by a number of enzymes for proper functioning; also known as enzyme cofactors. MORE
Health / Fitness / Coenzyme: A substance that works with an enzyme to promote the enzyme's activity. MORE
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
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
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
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