(1) When micF was cloned into a high-copy-number plasmid it repressed ompF gene expression, whereas when cloned into a low-copy-number plasmid it did not.
(2) On removal of selective pressure, the His+ phenotype was lost more readily than the Ura+ Trp+ markers, with a corresponding decrease in plasmid copy number.
(3) We have generated a series of mutants in the two copies of this motif present in human immunodeficiency virus type 1.
(4) The v-erb A oncogene of avian erythroblastosis virus is a mutated and virally transduced copy of a host cell gene encoding a thyroid hormone receptor.
(5) The fact that the security service was in possession of and retained the copy tape until the early summer of 1985 and did not bring it to the attention of Mr Stalker is wholly reprehensible,” he wrote.
(6) A method for constructing Ti plasmids bearing multiple copies of a sequence integrated in tandem is described.
(7) Overexpression of asparagine synthetase in beta-aspartyl hydroxamate-resistant lines without amplified copies of the gene was also correlated with DNA hypomethylation.
(8) This 54-bp fragment is present at about 2000-2500 copies in the bovine male genome.
(9) Construction of a repR-lacZ fusion proved that the increase in copy number was due to a proportional increase in the amount of RepR protein.
(10) The E2A mutants were propagated by growth in human cell lines which express an integrated copy of the DBP gene under the control of a dexamethasone-inducible promoter (D. F. Klessig, D. E. Brough, and V. Cleghon, Mol.
(11) The fusion was prepared in multicopy (pVLN102 plasmid) and low-copy-number states, the latter constructed as a lambda phage lysogen carrying a fur'-'lacZ insert.
(12) An expanded version of this paper, containing full experimental details of the semisynthesis and characterization of [GlyA1-3H]insulin, has been deposited as Supplementary Publication SUP 50129 (30 pages) at the British Library (Lending Division), Boston Spa, Wetherby, West Yorkshire LS23 7BQ, U.K., from whom copies can be obtained on the terms indicated in Biochem.
(13) All 51 undifferentiated NPCs contained significant numbers of EBV-genome copies per cell.
(14) By way of encouragement we've got 10 copies of Faber's smart new anniversary edition to give away.
(15) Programmed gene rearrangements are used in nature to to alter gene copy number (gene amplification and deletion), to create diversity by reassorting gene segments (as in the formation of mammalian immunoglobulin genes), or to control the expression of a set of genes that code for the same function (such as surface antigens).
(16) All three units are present in the same, probably single, copy number.
(17) Some derivatives of pIJ101, a 8.9 kb Streptomyces multi-copy plasmid, can co-exist with each other at similar copy numbers but others are strongly incompatible.
(18) Genomic southern hybridization experiments clearly indicate that the ribosomal RNA genes are unique single-copy DNA in H. cutirubrum.
(19) We demonstrate here that this transporter is encoded by a single family of tandemly clustered genes containing approximately 8 copies of the 3.6 kilobase repeat unit.
(20) There are approximately 20 copies of Tc1(Hin) amongst the Tc1's present in the Bergerac genome.