(n.) An embroidered and puckered border; a hem or fringe, often of gold or silver twist; also, a pleat or fold, as of a band.
(n.) An inversion of stitches in knitting, which gives to the work a ribbed or waved appearance.
(v. i.) To run swiftly round, as a small stream flowing among stones or other obstructions; to eddy; also, to make a murmuring sound, as water does in running over or through obstructions.
(v. & n.) To rise in circles, ripples, or undulations; to curl; to mantle.
(n.) A circle made by the notion of a fluid; an eddy; a ripple.
(n.) A gentle murmur, as that produced by the running of a liquid among obstructions; as, the purl of a brook.
(n.) Malt liquor, medicated or spiced; formerly, ale or beer in which wormwood or other bitter herbs had been infused, and which was regarded as tonic; at present, hot beer mixed with gin, sugar, and spices.
(n.) A tern.
Example Sentences:
(1) The purL gene of Escherichia coli encoding the enzyme formylglycinamidine ribonucleotide (FGAM) synthetase which catalyzes the conversion of formylglycinamide ribonucleotide (FGAR), glutamine, and MgATP to FGAM, glutamate, ADP, and Pi has been cloned and sequenced.
(2) ileS was closely flanked by an unknown open reading frame and by purL and thus is arranged differently from the organizations observed in several eubacteria or in Saccharomyces cerevisiae.
(3) The Killing does Christmas Jumper Day It's a purl Source: Viral Video Chart .
(4) On the basis of the nucleotide sequence of purL, the enzyme was dissected along the polypeptide chain into at least three discrete regions, designated as domains I, II, and III, by genetic complementation tests.
(5) These results support a model that the E. coli purL gene is a fused gene of at least three different gene families.
(6) These measurements indicated 5- to 17-fold coregulation of genes purF, purHD, purC, purMN, purL, and purEK and thus confirm the existence of a pur regulon.
(7) Comparison of the purL control region to other pur loci control regions reveals a common region of dyad symmetry which may be the binding site for the "putative" repressor protein.
(8) The purL gene from Lactobacillus casei, encoding phosphoribosylformylglycinamidine synthase II involved in the de novo synthesis of purines, was cloned and sequenced.
(9) A series of cold-sensitive mutations, affecting the assembly of ribosomes at 20 degrees C, was isolated within the purL to nadB region of the E. coli chromosome and one group, named rbaA, mapped at the same locus as the suppressor mutation, showing close linkage to the RNAase III gene.
(10) The putative purL product of 741 amino acids (M(r) of 79,575) shows 25% and 53% identity to the homologous enzymes from Escherichia coli and Bacillus subtilis, respectively.
(11) Escherichia coli 5'-phosphoribosylformylglycinamide (FGAR) amidotransferase (EC 6.3.5.3) encoded by the purL gene catalyzes the conversion of FGAR to formylglycinamidine in the presence of glutamine and ATP for the de novo purine nucleotide biosynthesis.
(12) Some of the mutants had acquired an additional genetic lesion in the purine de novo biosynthetic pathway, namely a purF, a purL or a purM mutation.
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.