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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+ .
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
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 ...
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.
Diptera setae are bristles present throughout the body and function as mechanoreceptors. Crustaceans have mechano- and chemosensory setae. [3] Setae are especially present on the mouthparts of crustaceans [3] and can also be found on grooming limbs. [4] In some cases, setae are modified into scale like structures. [4]
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 ...
Most molecules and structures coded by the genetic material are not visible in the appearance of an organism, yet they are observable (for example by Western blotting) and are thus part of the phenotype; human blood groups are an example. It may seem that this goes beyond the original intentions of the concept with its focus on the (living ...
The structure of human SUMO1 is depicted on the right. It shows SUMO1 as a globular protein with both ends of the amino acid chain (shown in red and blue) sticking out of the protein's centre. The spherical core consists of an alpha helix and a beta sheet. The diagrams shown are based on an NMR analysis of the protein in solution.