(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.
Trident
Definition:
(n.) A kind of scepter or spear with three prongs, -- the common attribute of Neptune.
(n.) A three-pronged spear or goad, used for urging horses; also, the weapon used by one class of gladiators.
(n.) A three-pronged fish spear.
(n.) A curve of third order, having three infinite branches in one direction and a fourth infinite branch in the opposite direction.
(a.) Having three teeth or prongs; tridentate.
Example Sentences:
(1) I'll admit to not having realised that more than £100bn would be committed to Trident – I half-remembered reading that it would cost £20bn, so went online, only to discover that the higher figure checks out .
(2) He voted in favour of the Iraq war and replacing Trident, and against more EU integration.
(3) Rather than challenging the Lib Dem policy on Trident, Miliband chose to criticise Cameron's comments about the renewal of Trident in last Thursday's leadership debate.
(4) The Labour leadership is understood to be pressing for its MPs to abstain on the grounds that the party’s policy is under review and the real vote on Trident will come in the decisive “main gate” decision on renewal next year.
(5) One of the Conservative party's most influential voices on defence has conceded that Britain can no longer be regarded as a "division-one military power", and raised questions over the sense of replacing the Trident nuclear fleet with a new generation of missile-launching submarines.
(6) Cadbury became the world's largest confectionery company in 2003 after buying up a number of gum brands, including Trident and Stride, but ceded the number one spot to Mars when it took over gum maker Wrigley last year.
(7) In morphology it is similar to D. bargusinica Skrjabin 1917, D. campanae Anderson 1959, D. dollfusi Anderson 1959, and D. epsilon Johnston and Mawson 1940, but can be separated from these species by combinations of trident size and spicule size and morphology.
(8) It’s good to hear a full-throated defence of social security as a basic principle of civilisation, and a reiteration of the madness of renewing Trident; pleasing too to behold how much Burnham and Cooper have had to belatedly frame their arguments in terms of fundamental principle.
(9) The idea that opposition to the renewal of Trident is an extreme policy confined to the British left is absurd.
(10) The report also raises serious questions about the funding of Trident .
(11) Tony Blair has promised a decision on replacing Trident by the end of the parliament, which could mean after he has left office.
(12) And while one may think that the bishops of the Church of England don’t quite have the sex appeal of Russell Brand, we think that we should counter it.” While the bishops stress that their letter is not intended as “a shopping list of policies we would like to see”, they do advocate a number of specific steps, including a re-examination of the need for Trident, a retention of the commitment to funding overseas aid and a reassessment of areas where regulations fuel “the common perception of ‘health and safety gone mad’”.
(13) With Trident, by contrast, it displays a hot-headed rush to spend before thinking, which approaches oniomania .
(14) Trident will be just one of many issues the review will look at; there isn’t a separate review.” Livingstone told the Guardian, prior to the publication of his comments about Jones, that some New Labour MPs had fallen into a “great depression” since Corbyn’s victory in September’s leadership contest.
(15) He advocated re-investing some of the money allocated for Trident on keeping jobs in the affected areas.
(16) 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).
(17) Corbyn then spoke to Hilary Benn and offered him the shadow foreign secretary position, even though Corbyn knew he was pro-Europe, pro-Nato and pro-Trident.
(18) Threats may now come from ideological terrorists unlikely to be deterred by a big missile, but Trident is more flexible than it appears; missiles can be loaded with small warheads enabling precise strikes against installations or terrorist cells within nations – or rogue states.
(19) After more than five hours of discussion, parliament voted in favour of Trident renewal by a majority of 355 in a motion backed by almost the entire Conservative party and more than half of Labour MPs.
(20) The most recent polling shows that backing the full replacement of Trident is not necessarily a vote winner, nor is opposing it necessarily a vote loser.