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Nitrilotriacetic acid (NTA) is the aminopolycarboxylic acid with the formula N(CH 2 CO 2 H) 3. It is a colourless solid. It is a colourless solid. Its conjugate base nitrilotriacetate is used as a chelating agent for Ca 2+ , Co 2+ , Cu 2+ , and Fe 3+ .
diethylenetriamineacetic acid DTMA [1] NH 2 C 2 H 4 NHC 2 H 4 NHCH 2 COOH linear NNNO 1– Co iso-diethylenetriamineacetic acid i-DTMA [1] (NH 2 C 2 H 4) 2 NCH 2 COOH tripodal N N 2NO 1– Co Jäger's N2O2 ligand linear acacen ONNO N 2 O 2: Ni Naphthalocyanine: C 48 H 26 N 8: ring NNNN 714.79 Nitrilotriacetic acid: NTA N(CH 2 CO 2 H) 3 ...
Further substitution gives nitrilotriacetic acid, NTA, which is a tetradentate ligand. [3] These compounds can be described as aminopolycarboxylates. Related ligands can be derived from other amino acids other than glycine, notably aspartic acid. Binding of a metal complex by the iminodiacetate anion
The chemistry symbols of this structural formula are drawn using the path text method. The accuracy of this version of the structural formula has been verified as part of the Chemical Structure Validation project .
Nitrilotriacetonitrile (NTAN) is a precursor for nitrilotriacetic acid (NTA, a biodegradable complexing agent and building block for detergents), for tris(2-aminoethyl)amine (a tripodal tetradentate chelating agent known under the abbreviation tren) and for the epoxy resin crosslinker aminoethylpiperazine.
This can be done in terms of the chemical elements present, or by molecular structure e.g., water, protein, fats (or lipids), hydroxyapatite (in bones), carbohydrates (such as glycogen and glucose) and DNA. In terms of tissue type, the body may be analyzed into water, fat, connective tissue, muscle, bone, etc.
The 3D structure of the enzyme brings together the triad residues in a precise orientation, even though they may be far apart in the sequence (primary structure). [ 3 ] As well as divergent evolution of function (and even the triad's nucleophile), catalytic triads show some of the best examples of convergent evolution .
Examples of methods for adding polyhistidine tags. (A) The polyhistidine tag is added by inserting the DNA encoding a protein of interest in a vector that has the tag ready to fuse at the C-terminus. (B) The polyhistidine tag is added using primers containing the tag coding sequence as an overhang on the forward primer. After PCR amplification ...