What's the difference between carboxyl and carboxylic?
Carboxyl
Definition:
(n.) The complex radical, CO.OH, regarded as the essential and characteristic constituent which all oxygen acids of carbon (as formic, acetic, benzoic acids, etc.) have in common; -- called also oxatyl.
Example Sentences:
(1) The amino acid sequence deduced from the nucleotide sequence contained both amino- and carboxyl-terminal sequences.
(2) Displacement of the enol triflate with various sulfinates in acetonitrile or DMF and deprotection of the intermediates led to 7 beta-[(2-amino-4-thiazolyl)(methoxyimino)acetyl]amino]- 3-[alkyl(aryl)sulfonyl]-1-carba-1-dethia-3-cephem-4-carboxyl ic acids.
(3) Conditions for limited digestion of the heterodimer by subtilisin, removing only the carboxyl terminus, were determined.
(4) Hence the major role of the 14-A arm of carboxybiotin is not to permit a large carboxyl migration but, rather to permit carboxybiotin to traverse the gap which occurs at the interface of three subunits and to insinuate itself between the CoA and keto acid sites.
(5) In the presence of high external Cl, a component of outward current that was inhibited by the anion channel blocker diphenylamine-2-carboxylate (DPC) appeared in 70% of the cells.
(6) When the transcriptional activity of these proteins was examined it was found that carboxyl-truncated Myb is more effective as a transcriptional activator than full-length or amino-truncated Myb.
(7) The conformations of cysteamine, thiazolidine, and thiazolidine-4-carboxylic acid were determined in aqueous solutions using NMR spectroscopy.
(8) The anticomplementary activity of BR-2-IIb was enhanced by de-esterification, but carboxyl-reduction decreased the activity.
(9) The polypeptide encoded by this thyroid-specific transcript consisted of a 398-amino acid residue amino-terminal segment, constituting a putative extracellular domain, connected to a 346-residue carboxyl-terminal domain that contained seven putative transmembrane segments.
(10) The high-affinity calcium-binding protein (55 kilodaltons (kDa] appears to conform to the above described mechanisms and contains the KDEL carboxyl-terminal tetrapeptide.
(11) Bio-Rex 70, a carboxylic acid cation exchanger, is studied as a biological ion-exchanger resin model for cellular cytoplasm.
(12) erbB lacks the EGF binding and carboxyl terminal regions, which are thought to be important in regulation.
(13) The transport of two amino acid analogues, alpha-aminoisobutyric acid and 2-aminobicyclo [2,2,1]-heptane-2-carboxylic acid, which differ in their mode of uptake, was also measured following induction by DMSO.
(14) Vitamin K is required in an enzymatic reaction which carboxylates glutamyl residues in a microsomal protein precursor of plasma prothrombin to form gamma-carboxyglutamic acid residues.
(15) Coenzymes that are linked via a spacer to carboxyl and amino groups are fixed to the protein by means of carbodiimides and hydroxysuccinimide.
(16) Deletion of a carboxyl-terminal sequence, comprising the transmembrane domain and short cytoplasmic tail of the alpha chain of the T cell antigen receptor (TCR-alpha), prevented the rapid degradation of this polypeptide.
(17) Hydrolysis of triolein in very low density lipoproteins (d less than 1.006) and intermediate lipoproteins (1.006 less than d less than 1.019) by carboxyl esterase was also enhanced by addition of THPF.
(18) Vancomycin has antibiotic and peptide-binding properties similar to ristocetin's, but differs structurally in having a free carboxyl group and thus a less positive charge at neutral pH.
(19) One was identified as viridomycin A, the ferrous chelate of 4-hydroxy-3-nitrosobenzaldehyde; the second (actinoviridin A) was the corresponding carboxylic acid chelate and the third (viridomycin E) was a hybrid chelate containing both the aldehyde and acid ligands.
(20) On the other hand, the carboxyl-terminal half of A0 is enriched with hydrophobic amino acid residues including four pairs of phenylalanine residues which are all conserved in a human homologue.