abstract：:High performance liquid chromatography analysis of imidazole open ring 7-methylguanine, 2-6 diamino-4-hydroxy-5N-methyl-formamidopyrimidine (rom7G), showed two well-separated peaks (fI and fII) of the same magnitude. Rechromatography of each isolated component indicated that they are slowly interconverted to give a 1:...

journal_title：Nucleic acids research

authors： Boiteux S,Belleney J,Roques BP,Laval J

更新日期：1984-07-11 00:00:00

abstract：:Three different types of repetitive Eco RI fragments, which comigrate within a visible band of approximately 500 bp at gel electrophoresis of Xenopus laevis DNA Eco RI digests have been cloned and sequenced. These sequences are designated as Repetitive Eco RI Monomers: REM 1, REM 2 and REM 3. The sequences contain dir...

journal_title：Nucleic acids research

authors： Hummel S,Meyerhof W,Korge E,Knöchel W

更新日期：1984-06-25 00:00:00

abstract：:In 4M NaCl solutions (dC-dG)n (n = 3,4; approximately 9 mM) exist as a mixture o +/- B and Z forms. The low and high field components of two 31P NMR resonances originating from internal phosphodiester groups are assigned to the GpC and CpG linkages, respectively. Low temperatures stabilize the Z-forms, which completel...

journal_title：Nucleic acids research

authors： Holak TA,Borer PN,Levy GC,van Boom JH,Wang AH

更新日期：1984-06-11 00:00:00

abstract：:DNA sequencing studies of two recently cloned human A gamma globin alleles has revealed a number of base differences which are clustered in the large intron (IVS-2). One allele has a previously undescribed IVS-2 sequence. Most of the allelic differences can be explained as resulting from a gene conversion event involv...

journal_title：Nucleic acids research

authors： Stoeckert CJ Jr,Collins FS,Weissman SM

更新日期：1984-06-11 00:00:00

abstract：:We have analyzed multiple recombinant DNA clones containing ribosomal RNA repeat units of the silkmoth, Bombyx mori. In combination with genomic DNA blots, analysis of these clones indicated that the rDNA repeat of B. mori is 10.8 kilobase pair in length and tandemly repeated in the genome, as reported by Manning et a...

journal_title：Nucleic acids research

authors： Lecanidou R,Eickbush TH,Kafatos FC

更新日期：1984-06-11 00:00:00

abstract：:The polypeptides recognized by a monoclonal antibody against calf thymus DNA polymerase alpha (secreted from a hybridoma CL22 -2- 42B , Nucleic Acids Res. (1982) 10, 4703-4713) were identified by the immunoblot method as the large polypeptides of the partially-purified 10S DNA polymerase alpha fraction. Using an immun...

journal_title：Nucleic acids research

authors： Masaki S,Tanabe K,Yoshida S

更新日期：1984-06-11 00:00:00

abstract：:Chromatin core particles near physiological ionic strength undergo a reversible transition induced by changes in pH near neutrality. While sedimentation studies indicate no significant effect on size or shape, changes in tyrosine fluorescence anisotropy and in circular dichroism suggest a somewhat looser structure at ...

journal_title：Nucleic acids research

authors： Libertini LJ,Small EW

更新日期：1984-05-25 00:00:00

abstract：:In Saccharomyces cerevisiae the majority of the genes for 5S rRNA lie within a 9kb rDNA sequence that is present as 100-200 tandemly-repeated copies on Chromosome XII. Following our observations that about 10% of yeast 5S rRNA exists as minor variant sequences, we screened a collection of yeast DNA fragments cloned in...

journal_title：Nucleic acids research

authors： Piper PW,Lockheart A,Patel N

更新日期：1984-05-25 00:00:00

abstract：:The mRNAs for different variant surface antigens of Trypanosoma brucei start with the same 35 nucleotides. This sequence is encoded by a separate mini-exon, located in a 1.35-kb repetitive element. We have reported that trypanosomes contain many transcripts that hybridize to mini-exon probes, even if they do not make ...

journal_title：Nucleic acids research

authors： De Lange T,Michels PA,Veerman HJ,Cornelissen AW,Borst P

更新日期：1984-05-11 00:00:00

abstract：:Synthetic oligonucleotides were used to introduce mutations into the lacPUV5 promoter. Four mutations were obtained at positions -13, -14, and -15, with respect to the transcriptional start site. The effects of these mutations were measured in vivo and the results are discussed with respect to the consensus sequence a...

journal_title：Nucleic acids research

authors： Munson LM,Mandecki W,Caruthers MH,Reznikoff WS

更新日期：1984-05-11 00:00:00

abstract：:Chloroplast DNA, isolated from a synchronized culture of Chlamydomonas reinhardii, was digested with restriction endonucleases and examined in the electron microscope. Restriction fragments containing displacement loops (D-loop) were photographed and measured to determine the position of replicated sequences in relati...

journal_title：Nucleic acids research

authors： Waddell J,Wang XM,Wu M

更新日期：1984-05-11 00:00:00

abstract：:This paper describes the sequence of 257 nucleotides from the 3' end of RNA 2 of barley stripe mosaic virus ( BSMV , strain Argentina Mild) including an internal oligo (A) tract localized at a distance of 236 nucleotides from the 3' end, and the 3' terminal tRNA-like structure accepting tyrosine. This sequence is show...

journal_title：Nucleic acids research

authors： Kozlov YuV,Rupasov VV,Adyshev DM,Belgelarskaya SN,Agranovsky AA,Mankin AS,Morozov SYu,Dolja VV,Atabekov JG

更新日期：1984-05-11 00:00:00

abstract：:Double stranded cDNA of cucumber pale fruit viroid ( CPFV ) has been cloned by the method of Okayama and Berg (Mol.Cell.Biol.2,161-170 (1982] and the complete nucleotide sequence was established. The covalently closed circular molecules of single-stranded CPFV RNA consists of 303 nucleotides. The nucleotide sequence o...

journal_title：Nucleic acids research

authors： Sano T,Uyeda I,Shikata E,Ohno T,Okada Y

更新日期：1984-04-25 00:00:00

abstract：:The positions of the trfA and trfB promoters of broad host range IncP plasmid RK2 (identical to RP1, RP4, R68 and R18 ) were identified by RNA polymerase protection studies, and the nucleotide sequences of the promoter regions determined. A mutation within the trfA promoter sequence is associated with loss of kilD act...

journal_title：Nucleic acids research

authors： Smith CA,Shingler V,Thomas CM

更新日期：1984-04-25 00:00:00

abstract：:1,10-Phenanthroline-platinum(II)-ethylenediamine ( PEPt ) forms a crystalline complex with cytidine-3'-phosphate (3'-CMP) and its structure has been determined by X-ray crystallography. 3'-CMP molecules are hemiprotonated and form hydrogen-bonded pairs that stack above and below the phenanthroline-platinum(II) drug mo...

journal_title：Nucleic acids research

authors： Vijay-Kumar S,Sakore TD,Sobell HM

更新日期：1984-04-25 00:00:00

abstract：:A soluble enzyme system that specifically initiates lambda dv plasmid DNA replication at a bacteriophage lambda replication origin [Wold et al. (1982) Proc. Natl. Acad. Sci. USA 79, 6176-6180] is also capable of replicating the single-stranded circular chromosomes of phages M13 and phi X174 to a duplex form. This chai...

journal_title：Nucleic acids research

authors： LeBowitz JH,McMacken R

更新日期：1984-04-11 00:00:00

abstract：:The nucleotide sequence of the Anacystis nidulans 23S rRNA gene, including the 5'- and 3'-flanking regions has been determined. The gene is 2876 nucleotides long and shows higher primary sequence homology to the 23S rRNAs of plastids (84.5%) than to that of E. coli (79%). The predicted rRNA transcript also shares many...

journal_title：Nucleic acids research

authors： Douglas SE,Doolittle WF

更新日期：1984-04-11 00:00:00

abstract：:Thermally induced structural transition in the d(TTTTATAATAAA) d(TTTATTATAAAA) heteroduplex is characterized by UV-spectroscopy and differential scanning calorimetry. At low salt (less than 0.1 M) the occurrence of a cooperative transition in the lower temperature range, followed by a broad transition connected with s...

journal_title：Nucleic acids research

authors： Bolewska K,Zielenkiewicz A,Wierzchowski KL

更新日期：1984-04-11 00:00:00

abstract：:ColE1 derivative plasmids were constructed in which the natural promoter that primes replication or, in addition, the region coding for the RNA I control element had been deleted. In all of these molecules priming of the origin was effected by read-through transcription from constitutive or inducible (lacUV5) promoter...

journal_title：Nucleic acids research

authors： Panayotatos N

更新日期：1984-03-26 00:00:00

abstract：:We present the complete sequence of an mRNA which is induced by estrogen in the human breast cancer cell line MCF-7 [pS2 mRNA, Masiakowski et al., Nucleic Acids Res. 10, 7895-7903 (1982)]. Primer extension and cloning of double-stranded cDNA (ds-cDNA) into a vector designed to make full-length cDNA were used to determ...

journal_title：Nucleic acids research

authors： Jakowlew SB,Breathnach R,Jeltsch JM,Masiakowski P,Chambon P

更新日期：1984-03-26 00:00:00

abstract：:VL30 genetic elements constitute a murine multicopy gene family that is retrovirus-like, despite the lack of sequence homology with any known retrovirus. Over one hundred copies of VL30 units are dispersed throughout the mouse genome. We report here that the mouse genome also contains 'solo' VL30 long terminal repeats...

journal_title：Nucleic acids research

authors： Rotman G,Itin A,Keshet E

更新日期：1984-03-12 00:00:00

abstract：:The complete nucleotide sequence of the coding region of foot and mouth disease virus RNA (strain A1061) is presented. The sequence extends from the primary initiation site, approximately 1200 nucleotide from the 5' end of the genome, in an open translational reading frame of 6,999 nucleotides to a termination codon 9...

journal_title：Nucleic acids research

authors： Carroll AR,Rowlands DJ,Clarke BE

更新日期：1984-03-12 00:00:00

abstract：:Procollagen alpha 2 (I) mRNA can be induced congruent to 6-fold in primary avian tendon (PAT) cells on addition of ascorbate to the culture medium. Previously, we have shown that the induction is linear after a 12 h lag and requires a total of 60-72 h to achieve maximum levels. We have now investigated in more detail ...

journal_title：Nucleic acids research

authors： Lyons BL,Schwarz RI

更新日期：1984-03-12 00:00:00

abstract：:The interactions between beef tRNATrp with avian myeloblastosis reverse transcriptase have been studied by statistical chemical modifications of phosphate (ethylnitrosourea) and cytidine (dimethyl sulfate) residues, as well as by digestion of complexed tRNA by Cobra venom nuclease and Neurospora crassa endonuclease. R...

journal_title：Nucleic acids research

authors： Garret M,Romby P,Giegé R,Litvak S

更新日期：1984-03-12 00:00:00

abstract：:The nucleotide sequences of the LTRs and their adjacent regions from 19 type C and one type B retrovirus were compared. Salient features are: (a) The R regions in the genomes of most of the type C retroviruses begin with GC and end with CA. (b) The mammalian type C retroviruses have a polyadenylation signal "AATAAA" i...

journal_title：Nucleic acids research

authors： Chen HR,Barker WC

更新日期：1984-02-24 00:00:00

abstract：:3'-O-(5'-phosphoryldeoxycytidyl) phosphorothioate and fluorescent 3'-O-(5'-phosphoryldeoxycytidyl) S-bimane phosphorothioate can be ligated to tRNA by T4 RNA ligase. They are also efficient donors for the enzymatic ligation to oligodeoxynucleotides bearing a 3'-cytidine terminus. Cytidine 3',5'-bisphosphate is also a ...

journal_title：Nucleic acids research

authors： Cosstick R,McLaughlin LW,Eckstein F

更新日期：1984-02-24 00:00:00

abstract：:The location of proteins on the mitochondrial DNA (mtDNA) of Drosophila virilis was investigated by Me3 psoralen photoreaction of mitochondria isolated from embryos. After photoreaction the mtDNA was purified and the pattern of DNA cross-linking was determined by electron microscopy of the DNA under totally denaturing...

journal_title：Nucleic acids research

authors： Pardue ML,Fostel JM,Cech TR

更新日期：1984-02-24 00:00:00

abstract：:Mouse DNA contains two equally abundant, homologous subfamilies of MspI 3.6 and 5 kb repeated fragments. The first subfamily corresponds to the previously described (1) Bam 4 kb repeats, the second one to Bam repeated fragments of higher molecular weight. These subfamilies account for the vast majority of long Bam rep...

journal_title：Nucleic acids research

authors： Meunier-Rotival M,Bernardi G

更新日期：1984-02-10 00:00:00

abstract：:Diadenosine 5',5'"-P1,P4-tetraphosphate (Ap4A) has been detected in cysts and developing embryos of the brine shrimp Artemia in amounts 10(4)-10(6) times lower than that of the guanine analogue, Gp4G. The unexpectedly high level of Ap4A in dormant cysts of 2.37 pmol/10(6) cells can be reduced to 0.03 pmol/10(6) cells ...

journal_title：Nucleic acids research

authors： McLennan AG,Prescott M

更新日期：1984-02-10 00:00:00

abstract：:We present the sequences of five additional human U2 pseudogenes which are very similar to the U2.13 pseudogene reported previously [Van Arsdell et al. (1981) Cell 26, 11-17]. All six U2 pseudogenes preserve the 5' end of the mature U2 snRNA sequence, and all six are flanked by nearly perfect direct repeats that diffe...

journal_title：Nucleic acids research

authors： Van Arsdell SW,Weiner AM

更新日期：1984-02-10 00:00:00

abstract：:DNA synthesized by in vitro transcription on rat interferon (IFN) mRNA has been cloned and amplified as recombinant DNA. The nucleotide sequence of these rat IFN cDNA clones revealed i. the partial presence of the coding region of the gene and ii all cDNA clones were derived from the same subtype of rat IFN-alpha mRNA...

journal_title：Nucleic acids research

authors： Dijkema R,Pouwels P,de Reus A,Schellekens H

更新日期：1984-01-25 00:00:00

abstract：:The deoxyribose hexanucleoside pentaphosphate (m5dC-dG)3 has been studied by 500 MHz 1H NMR in D2O (0.1 M NaCl) and in D2O/deuterated methanol mixtures. Two conformations, in slow equilibrium on the NMR time scale, were detected in methanolic solution. Two-dimensional nuclear Overhauser effect (NOE) experiments were u...

journal_title：Nucleic acids research

authors： Feigon J,Wang AH,van der Marel GA,Van Boom JH,Rich A

更新日期：1984-01-25 00:00:00

abstract：:Computer programs, implemented on an Univac II00/80 computer system, for the identification and characterization of protein coding genes and for the analysis of nucleic acid sequences, are described. ...

journal_title：Nucleic acids research

authors： Pierno G,Barni N,Candurro M,Cipollaro M,Franzè A,Juliano L,Macchiato MF,Mastrocinque G,Moscatelli C,Scarlato V

更新日期：1984-01-11 00:00:00

abstract：:This paper describes a simple program that uses a digitizing device to enter DNA sequences directly from autoradiographs into a computer. ...

journal_title：Nucleic acids research

authors： Staden R

更新日期：1984-01-11 00:00:00

abstract：:Three computer programs are described which may be used to translate a DNA sequence into a protein sequence, back translate the protein sequence into an ambiguous DNA sequence, and then do pattern searching in the ambiguous sequence. The programs are written in the C programming language, have been compiled to run on ...

journal_title：Nucleic acids research

authors： Mount DW,Conrad B

更新日期：1984-01-11 00:00:00

abstract：:A computer program package has been made available which contains five compound programs written in FORTRAN 10 (for DECsystem-10). Program DATBAS is for storing and improving DNA sequence data, especially those obtained by the sequencing method using M13 phages. Programs NUCDAT and PROTEN are for analyzing DNA/RNA and...

journal_title：Nucleic acids research

authors： Isono K

更新日期：1984-01-11 00:00:00

abstract：:A UCSD Pascal program was developed which can analyze nucleic acid dot matrices of up to 9500 X 9500 in size on the Apple II computer. Although matrices of such size consume large amounts of computer memory, this program minimizes these problems by analyzing only small strips of the matrix at a time, and then transfer...

journal_title：Nucleic acids research

authors： Zweig SE

更新日期：1984-01-11 00:00:00

abstract：:An algorithm is presented which compares two restriction maps, yielding a measure of distance between the maps and relating the maps by an alignment. This new algorithm finds the minimum weighted sum of genetic events required to convert one map into the other, where the genetic events are the appearance/disappearance...

journal_title：Nucleic acids research

authors： Waterman MS,Smith TF,Katcher HL

更新日期：1984-01-11 00:00:00

abstract：:We describe the further development of a widely used package of DNA/protein sequence analysis programs (1). Important revisions have been made based on user experience, and new features, multi-user capability, and a set of large scale homology programs have been added. The programs are very user friendly, economical o...

journal_title：Nucleic acids research

authors： Pustell J,Kafatos FC

更新日期：1984-01-11 00:00:00

abstract：:In order to facilitate the direct computation of the sizes of DNA fragments separated by gel electrophoresis, we have written and evaluated programmes for the Hewlett-Packard 41C programmable calculator. The sizes estimated for DNA fragments of known length using some of these programmes were found to be more accurate...

journal_title：Nucleic acids research

authors： Gough EJ,Gough NM

更新日期：1984-01-11 00:00:00