(n.) A resinous substance produced mainly on the banyan tree, but to some extent on other trees, by the Coccus lacca, a scale-shaped insect, the female of which fixes herself on the bark, and exudes from the margin of her body this resinous substance.
Example Sentences:
(1) Fifty-six percent of Lac+ transconjugants were resistant to the S. cremoris M12R lytic phage.
(2) We have previously shown that about 90% of total Escherichia coli lac repressor synthesized in mammalian cells is located in the cytoplasm [Hu and Davidson, Cell 48 (1987) 555-566].
(3) Hfr strains B4 and B8 transfer the Escherichia coli chromosome in opposite directions, each transferring lac(+) as the last known marker.
(4) Combined with histological analysis, these results suggest a more rapid recovery of normal spermatogenesis after physical insult with LAC treatment.
(5) The F'lac+ episome of Escherichia coli origin was transferred by conjugation with frequencies of 10(-7) to 10(-5) from Erwinia amylovora to 14 out of 15 Salmonella typhimurium trp female parents.
(6) A protein identical in properties to FIII L. casei lac was isolated from clones of E. coli carrying this DNA insert.
(7) Only one monoclonal antibody strongly inhibited cAMP binding by CRP, and this was accompanied by a consequent strong inhibition of both lac DNA binding and abortive initiation by RNA polymerase.
(8) These ends were cloned separately in lambdapMu hybrid particles that derived from a single Mu lysogen in the lac Z part of lambdaplac5.
(9) The structure of F13, a plasmid containing lac, purE, and proC, has been determined by heteroduplex analysis.
(10) In this case, resistance markers were lost when the transductants became Lac- but the derivatives remained copper resistant.
(11) Circular dichroic studies and hydropathy profiling of the amino-acid sequence of this 'lac' permease suggest a secondary structure in which the polypeptide consists of 12 hydrophobic segments in alpha-helical conformation that traverse the membrane in zig-zag fashion connected by shorter, hydrophilic domains with most of the charged residues and many of the residues commonly found in beta-turns.
(12) The strength of the STII gene promoter was compared with that of the ompF and lac operons, which were similarly fused to the lacZ gene.
(13) From the results of potassium iodide quenching of fluorescence from the tryptophans, and from attempts to react the native lac repressor with dimethyl(2-hydroxy-5-nitrobenzyl) sulfonium bromide and 2-hydroxy-5-nitrobenzyl bromide, we propose that tryptophan residue 209 is involved in a conformational change of the protein upon binding of inducer, but does not come in direct contact with inducer.
(14) In cells growing with interdivision times of 27, 36, and 55 min, the F'lac replicated at various stages in the division cycle but always at approximately the same time as initiation of chromosome replication.
(15) Expression of the blood group carbohydrates was similar in follicular and radicular cysts but differed from that seen in odontogenic keratocysts by the failure to detect N-lac in the latter.
(16) The phage lambda operator OR1 and a 18 base pair symmetric lac operator have been studied by high resolution NMR.
(17) Deletions covering all or part of the transfer region, as well as of lac and of pif, were obtained in the course of this analysis.
(18) A Mud(Ap, lac) prophage has been shown to be inserted into the ptsH gene of E. coli.
(19) From transient expression studies of the fusion gene between the chloramphenicol acetyltransferase and lac genes, it was found that the lacCAP binding site could act as an enhancer activity on the SV40 promoter, and also as an additive enhancer activity to the SV40 enhancer in HeLa cells.
(20) Expression of chlD-lac was increased in cells grown with nitrate.
Las
Definition:
(n.) A lace. See Lace.
(a. & adv.) Less.
Example Sentences:
(1) Originally, it was to be named Le Reve, after one of the Picassos that Wynn and his wife own; but, as of last month, it is to be called Wynn Las Vegas, embodying a dream of a different kind.
(2) "We expect LSCBs [local safeguarding children boards], LAs [local authorities] police forces and other agencies to do all they can to identify victims and abusers and we are looking at how we can improve data-sharing."
(3) Racing was heavily hit, with meetings at Ffos Las, Sandown and Wetherby cancelled.
(4) To assess the value of laparoscopic appendectomy (LA) in childhood, we prospectively compared 14 LAs with 50 open appendectomies (OA) over 6 months in a single children's hospital.
(5) The results obtained provided direct evidence for the notion that: LAs interact preferentially with inactivated Na+ channels and stabilize their inactivated conformation ("drug-induced slow inactivation": SI); and SI underlies the cumulative inhibition of INa during repetitive membrane stimulation.
(6) Moderate maternal toxicity was observed among mice treated with LAS, 0.3% and mild maternal toxicity in rats receiving LAS 3% or soap 30% and rabbits receiving LAS 0.3%.
(7) When Contostavlos wanted to stay an extra night at the luxury Las Vegas hotel, he told the court, his editors vetoed it.
(8) The deal gave Penn a Las Vegas casino for a fraction of what it cost to build the 390-room resort.
(9) With time and sufficient promotion by pH fluctuations or metal-complexing agents, DIP and LAS expand.
(10) Apple has used the month of January to launch revolutionary products before, in part as a way of diverting attention from its rivals presenting their latest inventions at the Consumer Electronics Show in Las Vegas, which Apple does not attend, and that takes place the same month.
(11) Moments later, Deputy Chief Tom Roberts, of Las Vegas Metro, defused the situation by delivering the announcement that Cliven Bundy's cattle would be returned within 30 minutes.
(12) The lymph nodes of patients with LAS were mostly stage I with marked follicular hyperplasia.
(13) Forty were lactose malabsorbers (LMs) and 31 were absorbers (LAs), according to a standard oral lactose tolerance test.
(14) Thirteen patients affected with unexplained lymphoadenopathy, fever, weight loss, and diarrhea (lymphoadenopathy syndrome; LAS) were evaluated for the possible appearance of acquired immunodeficiency syndrome (AIDS) and for immunological and virological characterization.
(15) Detectable levels of both cytokines were found in 34% of ASY and LAS patients and only rarely were detectable in ARC and AIDS patients.
(16) The possibility to correlate the latter findings with a better knowledge of LAS evolution and prognosis is discussed.
(17) The purpose of the present study was to propose an alternative measurement process which addresses some of the existing problems by estimating the lost attachment surface area (LAS) and the remaining attachment surface area (RAS) from a combination of clinical measurements.
(18) Antibody titres against the viral proteins also seemed to be highest in cases with LAS.
(19) Receptor autophosphorylation determined using Triton X-100 extracts of the fibroblasts was decreased in LA1 and LA3, but normal in LA2 and LAS.
(20) Facebook Twitter Pinterest ‘The past in all its mortal beauty’: Las Meninas, the 1656 Velazquez masterpiece that held Laura Cumming spellbound at the Prado in Madrid.