(1) P1,P2-Bidentate Cr(H2O)4PPS and Co(NH3)4PPS (prepared from PPS) were both found to be substrates for PPase.
(2) The beta, gamma-bidentate of chromium(III)ATP (Kd = 8 microM) had a higher than the alpha, beta, gamma-tridentate of chromium(III)ATP (Kd = 44 microM) or the cobalt tetramine complex of ATP (Kd = 500 microM).
(3) Hexadentate ligands would be preferable to bidentate compounds but no suitable compounds are available.
(4) PPase was unable to catalyze the hydrolysis of Mg(H2O)4PNP and P1,P2-bidentate Co(NH3)4PNP under conditions that resulted in rapid hydrolysis of the corresponding metal-PPi complexes.
(5) It is proposed that all of the anions behave as bidentate ligands, with coordination to the iron through both the carboxylate and proximal groups, and the carboxyl group serves as a bridge between the iron and a positively charged group on the protein.
(6) Paramagnetic effects of beta,gamma-bidentate Cr3+ATP on the longitudinal relaxation rates of protons of the peptide provided a set of distances to the side chains of five residues, which allowed the location of the bound Cr3+ atom to be uniquely defined.
(7) It is most likely that one C126 per subunit provides high-avidity bidentate ligation to Hg(II), but it remains possible that C82 may be a secondary Hg(II) ligand (e.g., in a tetracoordinate thiol ligation array).
(8) Mass spectrometry and 1H-NMR indicated that the (d,l-trans-1,2-diaminocyclohexane)methionineplatinum(II) complexes that formed in RPMI-1640 medium consisted of approximately 60% of the bidentate mono-methionine complex coordinated to platinum at the sulfur and alpha-amino positions and 40% of the bis-methionine complex, presumably coordinated at the sulfurs.
(9) Spectroscopic and other evidence indicated that the sugar anions bind monodentately in trans-[PtL2(NH3)2].H2O and bidentately in cis-[PtL(NH3)2]L.H2O complexes through the carboxylate oxygen atoms and other sugar donor groups.
(10) The ability of beta, gamma-bidentate CrATP to act as a substrate (Danenberg and Cleland [1975].
(11) The chromium moiety of gamma,beta-bidentate CrATP slowly accepts a ligand from the sarcoplasmic reticulum Ca-ATPase to form an exchange inert coordination complex (k + 1 = 0.083 min-1; k - 2 = 0.003 min-1, 37 degrees C, 100 microM CaCl2).
(12) Four independent beta-glycerophosphates commonly act as two types of bidentate ligands, where one is the coordination to the calcium ion by the glycerol O(1) and phosphate O(22) atoms, and the other by the phosphate O(22) and O(23) atoms, thus forming the calcium coordination of a distorted square plane, respectively.
(13) For this purpose, bidentate ligands as hydroxamate and N-hydroxy-N-formylamino groups were selected as highly potent metal coordinating agents and introduced on Phe-Gly and Phe-Ala related structures.
(14) In order to investigate the function of Asp-327, a bidentate ligand of one of the zinc atoms in Escherichia coli alkaline phosphatase, and the importance of this zinc atom in catalysis, site-specific mutagenesis was used to convert Asp-327 to either asparagine or alanine.
(15) Bidentate or tridentate ligands on the other hand are able to attack the zinc ion directly; the rates are first order in enzyme and first order in ligand.
(16) All members of the new family contain a 1,3-dioxane or 1,3-dioxolane-1,3-diamine as their basic ligand, a moiety which contributes to their increased water solubility, and a bidentate acid ligand, which is responsible for their good stability.
(17) We sought evidence to determine whether contractions of the smooth muscle of the guinea pig vas deferens to ATP are in response to ATP4- or its bidentate complexes.
(18) It has been hypothesized that bidentate hydrogen bonding plays an important role in the interaction of imidazolylphenylformamidines with the H2-receptor.
(19) Deprotonated sulphonylurea act as bidentate ligands using one nitrogen and one oxygen atom (the ureido oxygen) to bind Zn2+ forming K[Zn(suphonylurea)3].
(20) An overall mechanism for inhibition by single and bidentate ligands is proposed.
Interdental
Definition:
(a.) Situated between teeth; as, an interdental space, the space between two teeth in a gear wheel.
(a.) Formed between the upper and lower teeth; as, interdental consonants.
Example Sentences:
(1) The study suggested that 1) diabetes and "prediabetes" produce significant changes in levels of chondroitin 4, 6, and dermatan sulfates within alveolar bone, 2) in "prediabetic" animals, interdental bone loss occurs prior to the onset of clinical symptoms and in the absence of local irritating factors, the bone height appears to return to normal levels, and 3) there may be a correlation between alveolar bone height and relative levels of dermatan sulfate.
(2) The Eastman Interdental Bleeding Index was a more reliable clinical indicator for detecting interdental inflammatory lesions than the Papilla Bleeding Index.
(3) Some images suggest that they may be secreted through small disruptions of the membrane of the interdental cells' microvilli.
(4) Coincidently the mean height of diabetes prone interdental septum was significantly less than that of diabetes resistant or diabetic groups (p less than 0.05).
(5) The technique demonstrates that the vascular distribution of the interdental and interradicular septa is different.
(6) The terminology "flossing cleft" is suggested by the authors to describe linear or V-shaped interdental marginal tissue deformities that result from dental floss-induced injury.
(7) We have now investigated the prevalence of primate spaces and interdental spaces in the deciduous dentition by sex and arch in samples from Indian children and the relationship between these spaces and other morphological characteristics of the deciduous dental arches.
(8) Only 11.5 percent used an interdental aid once or more daily.
(9) These data suggest that regional variations in collagen remodeling must be considered in a study of interdental bone and that the total septal grain counts are not indicative of the remodeling in the component zones.
(10) The regional differences of the auditory teeth are considered to be closely related to local functions of the tectorial membrane and the interdental cells.
(11) Subcutaneous injection of pilocarpine in guinea pigs resulted in the following ultrastructural changes: 1) the apical cavities of the interdental cells were filled with a substance indistinguishable from the overlying amorphous layer of the TM; 2) a great number of spherical structures appeared over the limbal portion of the tectorial membrane.
(12) The potential role of interdental spaces is suggested as necessary key image regions to be identified for the model building process.
(13) Interdental care was practised by 20 women and only 10 used fluorides, they had without exception a secondary education.
(14) The average interdental spaces between the teeth ranged from 315 to 398 microns during the experimental period.
(15) These data demonstrate a high level of reproducibility for this method, which suggests that the Eastman interdental bleeding index is suitable for clinical trials and epidemiologic studies of interdental gingivitis.
(16) A posterior interdental crest was irradiated and a trabecular rod was removed.
(17) The results indicate that the interdental brush used in combination with a toothbrush is more effective in the removal of plaque from proximal tooth surfaces than a toothbrush used alone or in combination with dental floss.
(18) Teeth were brushed ad lib throughout; four of the five groups used either an interdental cleaner, dental floss, an essential oil mouthwash or a cetypyridinium mouthwash.
(19) Logistic regression showed that the reduction in the probability of using interdental aids was most pronounced among those with few teeth.
(20) The present study compared, histologically, the interdental tissues of bleeding sites with sites that initially bled but had been converted to nonbleeding by an oral hygiene program alone.