(v. i.) To utter a low, murmuring, continued sound, as a cat does when pleased.
(v. t.) To signify or express by purring.
(n.) The low, murmuring sound made by a cat to express contentment or pleasure.
Example Sentences:
(1) No correlation between PUR, platelet survival, platelet function and the clinical situation could be assessed.
(2) The sequence of markers in the corresponding segment (mel to purA; 91.5 to 93.5 min) of the E. coli linkage map was shown to be mel--aspA--mop(groE)--ampA--frdA--pur A.
(3) Two types of repetitive DNA elements are located within the PAI-1 structural gene and flanking DNAs: we have found 12 Alu elements and 5 repeats of a long poly (Pur) element.
(4) These things happen, it all comes together and a team suddenly starts purring; we hit five in about 10 minutes and, with Jimmy [Greaves] in that groove, we'd have beaten any team anywhere.
(5) Pur repressor bound specifically to purF operator DNA as determined by gel retardation and DNase I footprinting assays.
(6) It is concluded that: PUR, but not BAC, is a useful pharmacological tool for the aminopeptidase inhibition and for activation of enkephalinergic neurons; aminopeptidases are concerned with activities of opioid peptides.
(7) Facebook Twitter Pinterest David Cameron tells Michael Bloomberg ‘the Queen purred’ Buckingham Palace declined to comment on the discussions between Geidt and Heywood.
(8) Before a ferociously red crowd, in which the Australian fans, scattered throughout the stadium in little blobs of yellow, struggled to assert themselves in any meaningful way, the Chileans started with their customary disregard for defence, a line of five attackers purring forward with gushing, almost smug intent.
(9) The order of the markers was hom-1-thr-1-his-1-(gly-1 or gly-2)-pur-1-pur-2.
(10) Nicola Sturgeon could be sat in that castle now – we know she had her eye on it – it was a damn close-run thing.” Royal circles found particularly offensive Cameron’s portrayal of the Queen as having “purred down the line” when he telephoned her to tell her Scotland had voted against independence.
(11) The dominance of the referendum explains why a relieved Cameron told the former New York mayor Michael Bloomberg, in an overheard conversation days after the referendum, that the Queen had “ purred down the line ” when he told her the result.
(12) Furthermore, Pur-1 is able to activate an intact insulin promoter in HeLa cells, where it is normally inactive.
(13) The concentration of PPRibP has been examined in the rat adrenal gland at various times after induction of diabetes with STZ, in view of the key role it plays in the synthesis of Purs and Pyrs.
(14) Mutations in this group have previously been shown to be pleiotropic, affecting not only ras but also two other genetic entities, gua 1 and pur 1, which yield auxotrophic mutations.--The eight new mutations have been characterized phenotypically in double heterozygotes with gua 1, pur 1 and ras mutations.
(15) Washington is positively purring with pleasure over Abe's tougher stance.
(16) He tossed Shakespeare into a modern-day, thinly veiled Miami in the electrifying Romeo + Juliet and sent Nicole Kidman wafting, purring and simpering through bohemian Paris in Moulin Rouge!
(17) Puromycin aminonucleoside, an analog of PUR with no inhibitory action on protein synthesis, had no effect.
(18) Exogenously supplied histidine (that blocks conversion of AMP to guanine nucleotides) does not reduce the growth rate of the strain of pur apt genotype on adenosine as the sole purine source.
(19) The mutation, called rer, is located between arg B and pur D loci.
(20) PUR induced the dose-related analgesic effect abolished by NAL and increased the level of ENK in the striatum.
Purr
Definition:
(v. i. & t.) To murmur as a cat. See Pur.
(n.) The low murmuring sound made by a cat; pur. See Pur.
Example Sentences:
(1) Expression of glyA, encoding serine hydroxymethyltransferase activity, was elevated in a purR mutant compared with a wild-type strain.
(2) A bulldozer on rail wheels purrs up on the other line and begins pawing at the stones.
(3) At the place where adorable meets obnoxious and the purr becomes a shriek, Leslie Mann is waiting to unload a howitzer of funny in your face.
(4) Nitrogen control was found to be mediated by the glnLG gene products, and purine repression required a functional purR gene product.
(5) Though I could have sworn that you did actually purr,” Dave recalled.
(6) AMP but not GMP is needed for binding, and purR mutants are deficient in the binding substance.
(7) The PurR protein bound specifically to a DNA fragment carrying the glyA control region, as determined by gel retardation.
(8) Cross pathway regulation of pyrC by PurR may provide one mechanism to coordinate synthesis of purine and pyrimidine nucleotides.
(9) "Oh, the lords absolutely love Justin," purrs one senior peer.
(10) Both operator constitutive and repressor type (purR) mutations have been identified.
(11) The purR product functions in the common control of several genetically distinct enzymes that participate before the formation of IMP.
(12) The regulation of the guanine operon is regulated by some other mechanism independent of purR.
(13) A highly conserved sequence in the promoter regions of these two genes is similar to the pur operator, which is the binding site for the purine repressor (PurR).
(14) Gene purB is regulated threefold by the purine pool and purR.
(15) The purEK operon is regulated by the purR gene product, and a purR regulatory-protein-binding site related to the sequences found in other pur loci was identified in the purEK operon control region.
(16) In the film, there is a killingly funny vignette in which Joshua McGuire’s Ruskin, who cannot pronounce his Rs, purrs with self-satisfaction at his own ideas – the critic who got the cream.
(17) Analysis of a purR-lacZ transcriptional fusion indicated that purR expression is autoregulated.
(18) Mutations that changed the binding sequence toward the consensus sequence had no significant effect on either PurR binding or purine-mediated repression.
(19) Site-directed mutagenesis was used to change the PurR binding site in the control region of a glyA-lac gene fusion.
(20) Two independent purR mutations were isolated which abolished repression of purF and purF-lacZ.