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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+ .
This chronological list of biophysically notable protein and nucleic acid structures is loosely based on a review in the Biophysical Journal. [1] The list includes all the first dozen distinct structures, those that broke new ground in subject or method, and those that became model systems for work in future biophysical areas of research.
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 ...
An aminopolycarboxylic acid (sometimes abbreviated APCA) is a chemical compound containing one or more nitrogen atoms connected through carbon atoms to two or more carboxyl groups. Aminopolycarboxylates that have lost acidic protons form strong complexes with metal ions.
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 ...
N-acyl amides are a general class of endogenous fatty acid compounds characterized by a fatty acyl group linked to a primary amine metabolite by an amide bond. Broadly speaking, N-acyl amides fall into several categories: amino acid conjugates (e.g., N-arachidonoyl-glycine), neurotransmitter conjugates (e.g., N-arachidonoyl-serotonin), ethanolamine conjugates (e.g., anandamide), and taurine ...
The different types of lipid-linked oligosaccharide (LLO) precursor produced in different organisms.. N-linked glycosylation is the attachment of an oligosaccharide, a carbohydrate consisting of several sugar molecules, sometimes also referred to as glycan, to a nitrogen atom (the amide nitrogen of an asparagine (Asn) residue of a protein), in a process called N-glycosylation, studied in ...