What's the difference between firefly and nul?

Firefly


Definition:

  • (n.) Any luminous winged insect, esp. luminous beetles of the family Lampyridae.

Example Sentences:

  • (1) A 1,300-base pair fragment of 5'-flanking sequence containing these elements, ligated upstream from a firefly luciferase reporter gene and transfected into cultured normal rat kidney cells, demonstrated strong promoter activity.
  • (2) Responding quickly, whatever the channel, is one of the most important things when it comes to how happy clients feel about the interaction they’ve had,” said Simon Hay, co-founder of online learning platform Firefly .
  • (3) Two genes, uidA encoding beta-glucuronidase (GUS) from Escherichia coli and Luc, encoding firefly luciferase (LUC), were used to analyze the ability of a cap, polyadenylated tail, and the 5'- and 3'-untranslated regions (UTR) from tobacco mosaic virus (TMV) to regulate expression.
  • (4) The method is based on the expression of an N-terminally extended firefly luciferase gene which requires frameshifting in order to be translated as a functional enzyme.
  • (5) A bioluminescent indicator for protein kinase A has been developed by mutating V217 in firefly (Photinus pyralis) luciferase to R, and the C-terminal peroxisomal signal removed by PCR.
  • (6) ATP remaining in the sample after incubation was extracted in boiling buffer and assayed by the firefly luciferase assay.
  • (7) ATP synthase and ATPase activities of the particles were measured in similar reaction mixtures by luminescence of firefly luciferin-luciferase.
  • (8) The Cre-lox site-specific recombination system of bacteriophage P1 was used to excise a firefly luciferase (luc) gene which had previously been incorporated into the tobacco genome.
  • (9) The effects of substrates (ATP and luciferin) on stability of firefly luciferase embedded into phosphatidylcholine liposomes have been studied.
  • (10) The endogenous release of adenosine 5'-triphosphate (ATP) from strips of guinea-pig gallbladder during transmural stimulation (TS) was measured with a firefly luciferine-luciferase reaction.
  • (11) A cDNA encoding the firefly luciferase [Photinus luciferin: oxygen 4-oxidoreductase (decarboxylating, ATP-hydrolyzing), EC 1.13.12.7] was cloned downstream from the polyhedrin gene promoter of Autographa californica nuclear polyhedrosis virus and expressed in Spodoptera frugiperda clone-9 cells.
  • (12) Recent advances in the analytical applications of bacterial and firefly luciferases and firefly luciferin are reviewed.
  • (13) The full-length, intronless luciferase gene was inserted into mammalian expression vectors and introduced into monkey (CV-1) cells in which enzymatically active firefly luciferase was transiently expressed.
  • (14) Hay, from Firefly, said he uses two types of survey in his business: a “How do you feel about our product?” survey that is sent out a few times each year, giving customers the chance to suggest ideas, questions and problems.
  • (15) Using a very sensitive firefly biolumnescence method 6% of the normal content of Ap4A was, however, found in platelets from sick animals.
  • (16) Fusion constructs containing 5'-flanking sequences from the rat PRL gene linked to either the bacterial chloramphenicol acetyltransferase (CAT) gene or the firefly luciferase gene were transiently expressed in GH3 cells and the transcriptional response to Ca2+ channel modulators was assessed.
  • (17) These analogues are the first examples of bioluminescent substrates for firefly luciferase that do not contain a benzothiazole moiety.
  • (18) This is quite obvious in the firefly where the energy, required for light production, is derived from ATP and in a couple of strains of luminescent bacteria where reduced pyridine nucleotides through reduction of flavine mononucleotide is utilized in the light reaction.
  • (19) The ATP concentration of intact, cold-tolerant (ground squirrel) red cells and cold-sensitive (guinea-pig and human) red cells was monitored by use of the firefly tail, luciferin-luciferase assay.
  • (20) The enzymatic activity of firefly luciferase provides a sensitive, rapid means to assay transcriptional activity of regulated activation sequences of DNA when fused to the protein coding sequence of the luciferase gene.

Nul


Definition:

  • (a.) No; not any; as, nul disseizin; nul tort.

Example Sentences:

  • (1) recently, TALAMO discovered a subject whose serum contained no alpha-1-antitrypsin; this was the first case of total deficiency, and the patient carried a double dose of the so-called Pi--allele (Pi nul).
  • (2) The subunits of terminase, gpNul and gpA, are the products of genes Nul and A.
  • (3) In such case, the left hemisphere assumed to be dominant for awareness of body and space would receive from the right hemisphere a message interpreted as nul and would neglect information coming from the left.
  • (4) Pefloxacin had a sieving coefficient of 0.42 and a clearance of 6.8 ml min-1 when Qdi was nul.
  • (5) One note of warning: despite the historic strength of the Viking Empire bloc, Noway has finished last on 10 previous occasions, once achieving the dreaded nul points.
  • (6) The synthesis of genes Nul and A products is extremely efficient upon derepression.
  • (7) Correlation between observers was practically nul for ASP and was poor for LDC.
  • (8) The 11 low grade lymphomas were all of B cell origin, whereas the 14 high grade lymphomas comprised B and T cell tumours, true histiocytic proliferations, and one "nul" cell lymphoid neoplasm.
  • (9) Witness Jemini (the UK's first nul points), Scooch, Love City Groove etc etc.
  • (10) BVe of beef proved to be equal to BVp, and C was close to nul.
  • (11) The results from this study suggest that the large nul cell lymphocyte population seen in patients with Shigella dysentery, does contain a sub-population of cells that will respond in vitro to thymopoietin, a bovine thymic extract, by increased E-rosette formation.
  • (12) The results are good for 16 patients, nul for 2 patients and we observed 2 complications.
  • (13) The inflammatory response of the ascitic fluid in the different variants of AFI was gradual, being lower in BP and nul in BA.
  • (14) Statistical analysis did not allow to establish the optimal number to be taken at a single procedure but it showed that the probability of obtaining the diagnosis in sarcoidosis was 2.6% at the first specimen taken, while in fibrosis it was nul at the first and at the second specimen.
  • (15) The phase lead is higher for the VOR than for the CL-VCR (40 degrees and 32 degrees respectively at 0.03 Hz), but both phases also become nul around 1 Hz.
  • (16) The responsible mutation, ohm1, alters the 40th codon of the Nul reading frame.
  • (17) A unilateral verrucous lesion with clinical characteristics of nevus unius lateralis (NUL) in an 18-year-old boy, showed histopathological features of intraepidermal basaloid cell formation simulating superficial basal cell epitheliomas.
  • (18) The effect of Bordetella pertussis adjuvant on the immune response of protein deficient mice seems nul.
  • (19) The sti30 mutation causes a approximately 50-fold increase in the level of expression of a Nul-lacZ reporter gene, indicating that the sti30 mutation overcomes the gp1 inhibition by increasing the level of expression of gpNul.
  • (20) The much less than Quantigen T and B Cell Assay much greater than method is used to evaluate T and B lymphocyte levels, Nuls Cells and monocytes in the peripheral venous blood of patients surgically treated for breast cancer.

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