(n.) an instrument or device for priming; esp., a cap, tube, or water containing percussion powder or other compound for igniting a charge of gunpowder.
(a.) First; original; primary.
(n.) Originally, a small prayer book for church service, containing the little office of the Virgin Mary; also, a work of elementary religious instruction.
(n.) A small elementary book for teaching children to read; a reading or spelling book for a beginner.
(n.) A kind of type, of which there are two species; one, called long primer, intermediate in size between bourgeois and small pica [see Long primer]; the other, called great primer, larger than pica.
Example Sentences:
(1) The following conclusions emerge: (i) when the 3' or the 3' penultimate base of the oligonucleotide mismatched an allele, no amplification product could be detected; (ii) when the mismatches were 3 and 4 bases from the 3' end of the primer, differential amplification was still observed, but only at certain concentrations of magnesium chloride; (iii) the mismatched allele can be detected in the presence of a 40-fold excess of the matched allele; (iv) primers as short as 13 nucleotides were effective; and (v) the specificity of the amplification could be overwhelmed by greatly increasing the concentration of target DNA.
(2) Elongation of existing RNA primers by the human polymerase-primase was semi-processive; following primer binding the DNA polymerase continuously incorporated 20 to 50 nucleotides, then it dissociated from the template DNA.
(3) This cDNA was obtained because of an identical 10 bp match with the 3' end of one of the GnRH primers.
(4) When PCR products in each of the 12 cats were subjected to a second amplification using the same primer pair (two-step amplification: double PCR), FIV proviral DNA was detected in all of the cats.
(5) In junctions, 3' PSS termini are preserved by fill-in DNA synthesis, although their 5' recessed ends cannot serve as a primer.
(6) Previous studies demonstrated that, when poly(dT).oligo(dA) was used as a template-primer, both proteins were required for poly(dA) synthesis.
(7) 5'-Ends of transcripts of the region were located by S1 nuclease mapping and primer extension.
(8) Nucleotide incorporation kinetics were determined and sequence specific pausing was analyzed by primer-extension.
(9) Primer extension and S1 nuclease protection analysis demonstrate that the hepatic and kidney specific mRNAs are transcriptionally initiated at different sites within the sialyltransferase gene.
(10) alpha 1 and alpha 2 were very similar as DNA polymerases in their sensitivity to several inhibitors and their preference for template-primers, except that alpha 1 had a slightly greater preference for poly (dT) X (rA)10 than alpha 2 did.
(11) Our results indicate that provirus expression occurs by two different mechanisms: one provirus acquired a single base pair mutation in the retrovirus tRNA primer binding site, permitting provirus expression; expression of three proviruses was mediated by 5'-flanking DNA sequences.
(12) Cognate sites in genomes that diverged approximately 100 million years ago can be detected by PCR assays based on primer pairs from unique sequences.
(13) HDV cDNA was then directly amplified with Taq polymerase using three pairs of specific primers.
(14) This reaction involved the synthesis of a short oligoribonucleotide primer which was then extended into a DNA chain.
(15) cDNA was prepared by reverse transcription of peripheral blood mRNA and amplified by the polymerase chain reaction (PCR) using primers corresponding to sequences 400 bp apart on the cDNA, spanning the last three exons (X, Y, Z) of the beta-Sp gene.
(16) B.subtilis phage M2 uses a protein, instead of RNA, as the primer of its DNA replication.
(17) Optimum specific amplification resulted when the primer annealing temperature was 60 degrees C. The gene fragment was amplifiable in 25 different Brucella species and strains.
(18) Primer extension experiments show that in fission yeast transcripts are initiated at the same starting point as in tomato, indicating for the first time that a plant promoter can be correctly recognized in fission yeast.
(19) Genomic clones for the mouse estrogen receptor have been isolated from a cosmid library and used in conjunction with the cDNA clones to study the expression of the receptor in vivo by RNase mapping, primer extension, and Northern blotting.
(20) By using primer 1 (5'-AAAGAATTCATGGAATCCAGGATCTG-3', upstream nucleotides 157 to 2877), primer 2 (5'-AAAGAATTCATGAACGTGAAGGAATCG-3', upstream nucleotides 1846 to 2877), and primer 4(5'-ATAAAGCTTAATCAGACGTTCTCTTCTTC-3', downstream nucleotides 157 to 2877 and 1846 to 2877), the HCMV B gene code region sequence and its glycoprotein 52 kd antigenic domain sequence were amplified from the recombinant plasmid pBH1 DNA containing the HCMV B gene.
Undercoat
Definition:
(n.) A coat worn under another; a light coat, as distinguished from an overcoat, or a greatcoat.
(n.) A growth of short hair or fur partially concealed by a longer growth; as, a dog's undercoat.
Example Sentences:
(1) Microfilaments thus continuously undercoat the luminal membrane during exocytosis although the exocytic process involves the dilation and subsequent reduction of the luminal membrane due to the addition and removal of secretory granule membranes.
(2) Within the MVs, intravesicular filaments, amorphous material, and membrane-associated undercoat structures were observed.
(3) It is supposed that this undercoat gives the structural support for the lateral membrane of the apical region in the taste bud cells.
(4) In this study, using the isolated AJ, we have obtained two mAbs specific to the 220-kD undercoat-constitutive protein.
(5) An 82-kD protein has been purified from the undercoat of the adherens junction isolated from the rat liver.
(6) Together, these results lead us to conclude that radixin is present in the undercoat of the cell-to-cell adherens junctions and that of the cleavage furrow, although their respective molecular architectures are distinct.
(7) Radixin is an actin barbed-end capping protein which is highly concentrated in the undercoat of the cell-to-cell adherens junction and the cleavage furrow in the interphase and mitotic phase, respectively (Tsukita, Sa., Y. Hieda, and Sh.
(8) It was seen in the mitochondria and in the subplasmalemmal undercoat.
(9) Recent research has focused on the molecular linkage between cadherins and actin filaments in the undercoat of adherens junctions in order to understand the functions of these undercoat-constitutive proteins in the regulation and signal transduction of cadherin-based cell adhesion.
(10) Compared with the medium-energy-diet, the high-energy diet reduced hair weight per unit of surface area, undercoat number and guard hair medullation.
(11) The immunoelectron microscopy of the extensor digitorum longus muscles of six mdx mice and six control mice showed the location of anti-dystrophin antibody along the muscle plasma membrane undercoat of all the muscle samples from the control mice without any antibody reaction in the mdx mice muscles.
(12) The markedly reduced perturbability of the red blood cell (RBC) membrane, compared to other cells, has been attributed to the constraining influence of the red cell membrane skeleton, the undercoat composed of spectrin, actin, and protein 4.1.
(13) The plasmalemmal undercoat, which was composed of vertical and horizontal layers, was observed on the zonula occludens.
(14) Plasmamembrane and its cytoskeletal undercoat were characterized by electron microscopy in gap junctions (GJs) of steroidogenic cells of the guinea pig and bullfrog adrenal glands.
(15) The changes of in vitro cultivated cells have in contrast been confirmed with previous experimentation showing that the varnish itself causes toxicity for living cells and therefore is not convenient to undercoat cavities in the proximity of pulps.
(16) Goats that have been selected for production of this fine, downy undercoat are referred to as "Cashmere" goats.
(17) Immunofluorescence microscopy and immune electron microscopy have revealed that this protein is distributed not only at the undercoat of adherens junctions but also along actin bundles associated with the junction in nonmuscle cells: stress fibers in cultured fibroblasts and circumferential bundles in epithelial cells.
(18) The Bacillus subtilis spore coat consists of three morphological layers: a diffuse undercoat, a striated inner coat and a densely staining outer coat.
(19) The undercoat is a special form of the cytoskeleton-membrane interaction, though it constitutes a part of the cytoskeleton.
(20) These results show that the filaments may be closely associated with the plasmalemmal infoldings and included as the same category of plasmalemmal undercoat.