ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    facet.materialart.
    Unknown
    Activation of the OxyR transcription factor by reversible disulfide bond formation (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-28
    Description: The OxyR transcription factor is sensitive to oxidation and activates the expression of antioxidant genes in response to hydrogen peroxide in Escherichia coli. Genetic and biochemical studies revealed that OxyR is activated through the formation of a disulfide bond and is deactivated by enzymatic reduction with glutaredoxin 1 (Grx1). The gene encoding Grx1 is regulated by OxyR, thus providing a mechanism for autoregulation. The redox potential of OxyR was determined to be -185 millivolts, ensuring that OxyR is reduced in the absence of stress. These results represent an example of redox signaling through disulfide bond formation and reduction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zheng, M -- Aslund, F -- Storz, G -- New York, N.Y. -- Science. 1998 Mar 13;279(5357):1718-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cell Biology and Metabolism Branch, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9497290" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Bacterial Proteins/genetics/metabolism ; Base Sequence ; Cysteine/metabolism ; *DNA-Binding Proteins ; Disulfides/*metabolism ; Escherichia coli/genetics/*metabolism ; Escherichia coli Proteins ; Gene Expression Regulation, Bacterial ; Glutaredoxins ; Glutathione/metabolism ; Glutathione Disulfide/metabolism ; Glutathione Reductase/metabolism ; Hydrogen Peroxide/*metabolism/pharmacology ; Molecular Sequence Data ; Oxidation-Reduction ; Oxidative Stress ; *Oxidoreductases ; Proteins/genetics/metabolism ; Repressor Proteins/genetics/*metabolism ; Signal Transduction ; Thioredoxins/metabolism ; Transcription Factors/genetics/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 2
    facet.materialart.
    Unknown
    DNA sequence motifs for structure-specific recognition and separation of carbon nanotubes (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-07-10
    Description: Single-walled carbon nanotubes (SWNTs) are a family of molecules that have the same cylindrical shape but different chiralities. Many fundamental studies and technological applications of SWNTs require a population of tubes with identical chirality that current syntheses cannot provide. The SWNT sorting problem-that is, separation of a synthetic mixture of tubes into individual single-chirality components-has attracted considerable attention in recent years. Intense efforts so far have focused largely on, and resulted in solutions for, a weaker version of the sorting problem: metal/semiconductor separation. A systematic and general method to purify each and every single-chirality species of the same electronic type from the synthetic mixture of SWNTs is highly desirable, but the task has proven to be insurmountable to date. Here we report such a method, which allows purification of all 12 major single-chirality semiconducting species from a synthetic mixture, with sufficient yield for both fundamental studies and application development. We have designed an effective search of a DNA library of approximately 10(60) in size, and have identified more than 20 short DNA sequences, each of which recognizes and enables chromatographic purification of a particular nanotube species from the synthetic mixture. Recognition sequences exhibit a periodic purine-pyrimidines pattern, which can undergo hydrogen-bonding to form a two-dimensional sheet, and fold selectively on nanotubes into a well-ordered three-dimensional barrel. We propose that the ordered two-dimensional sheet and three-dimensional barrel provide the structural basis for the observed DNA recognition of SWNTs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tu, Xiaomin -- Manohar, Suresh -- Jagota, Anand -- Zheng, Ming -- England -- Nature. 2009 Jul 9;460(7252):250-3. doi: 10.1038/nature08116.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉DuPont Central Research and Development, Wilmington, Delaware 19880, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19587767" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Chemical Fractionation/*methods ; DNA/*chemistry/genetics ; Gene Library ; Models, Molecular ; Nanotubes, Carbon/*chemistry ; Nucleic Acid Conformation ; Sensitivity and Specificity ; Spectrophotometry ; Substrate Specificity
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 3
    facet.materialart.
    Unknown
    Structure-based carbon nanotube sorting by sequence-dependent DNA assembly (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-12-04
    Description: Wrapping of carbon nanotubes (CNTs) by single-stranded DNA (ssDNA) was found to be sequence-dependent. A systematic search of the ssDNA library selected a sequence d(GT)n, n = 10 to 45 that self-assembles into a helical structure around individual nanotubes in such a way that the electrostatics of the DNA-CNT hybrid depends on tube diameter and electronic properties, enabling nanotube separation by anion exchange chromatography. Optical absorption and Raman spectroscopy show that early fractions are enriched in the smaller diameter and metallic tubes, whereas late fractions are enriched in the larger diameter and semiconducting tubes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zheng, Ming -- Jagota, Anand -- Strano, Michael S -- Santos, Adelina P -- Barone, Paul -- Chou, S Grace -- Diner, Bruce A -- Dresselhaus, Mildred S -- McLean, Robert S -- Onoa, G Bibiana -- Samsonidze, Georgii G -- Semke, Ellen D -- Usrey, Monica -- Walls, Dennis J -- New York, N.Y. -- Science. 2003 Nov 28;302(5650):1545-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉DuPont Central Research and Development, Experimental Station, Wilmington, DE 19880, USA. ming.zheng@usa.dupont.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14645843" target="_blank"〉PubMed〈/a〉
    Keywords: Anions ; Base Sequence ; Chromatography, Ion Exchange ; DNA, Single-Stranded/*chemistry ; Deoxyribonucleotides/chemistry ; Gene Library ; Hydrogen Bonding ; Microscopy, Atomic Force ; *Nanotechnology ; *Nanotubes, Carbon ; Nucleic Acid Conformation ; Repetitive Sequences, Nucleic Acid ; Semiconductors ; Spectrum Analysis ; Spectrum Analysis, Raman ; Static Electricity
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 4
    facet.materialart.
    Unknown
    A new species of the genus Proantrusa Tobias (Hymenoptera: Braconidae: Alysiinae) from Northwestern China (2016)
    In:  Various articles (1938-5102) vol.99 (2016) nr.3 p.385
    Details
    Publication Date: 2017-03-25
    Description: A new species of Proantrusa Tobias, 1998 (Braconidae: Alysiinae: Dacnusini), P. tridentata sp. nov., is described and illustrated from northwestern China (Ningxia). The genus Proantrusa Tobias is newly recorded for China.
    Keywords: taxonomy ; parasitoid ; new record ; Palearctic ; Dacnusini
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 5
    facet.materialart.
    Unknown
    First report of the genus Coeliniaspis Fischer (Hymenoptera, Braconidae, Alysiinae) from China and Russia (2017)
    In:  Various articles (1070-9428) vol.57 (2017) p.135
    Details
    Publication Date: 2018-02-12
    Description: Coeliniaspis Fischer, 2010 (Braconidae, Alysiinae, Dacnusini) is recorded from China and Russia for the first time. Coeliniaspis insularis (Tobias, 1998) is reported from China (Fujian), redescribed and illustrated. A key to the species of the genus Coeliniaspis Fischer is added. Coeliniaspis insularis (Tobias, 1998) and C. rufiventris (Tobias, 1998) are new combinations.
    Keywords: taxonomy ; parasitoids ; new combination ; Oriental ; China ; Fujian ; Russia ; Dacnusini ; Coeliniaspis insularis
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 6
    facet.materialart.
    Unknown
    First report of the genus Coeliniaspis Fischer (Hymenoptera, Braconidae, Alysiinae) from China and Russia (2017)
    In:  Journal of Hymenoptera Research vol. 57, pp. 135-142
    Details
    Publication Date: 2024-01-12
    Description: Coeliniaspis Fischer, 2010 (Braconidae, Alysiinae, Dacnusini) is recorded from China and Russia for the first time. Coeliniaspis insularis (Tobias, 1998) is reported from China (Fujian), redescribed and illustrated. A key to the species of the genus Coeliniaspis Fischer is added. Coeliniaspis insularis (Tobias, 1998) and C. rufiventris (Tobias, 1998) are new combinations.
    Keywords: taxonomy ; parasitoids ; new combination ; Oriental ; China ; Fujian ; Russia ; Dacnusini ; Coeliniaspis insularis
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 7
    facet.materialart.
    Unknown
    A new species of the genus Proantrusa Tobias (Hymenoptera: Braconidae: Alysiinae) from Northwestern China (2016)
    In:  Florida Entomologist vol. 99 no. 3, pp. 385-388
    Details
    Publication Date: 2024-01-12
    Description: A new species of Proantrusa Tobias, 1998 (Braconidae: Alysiinae: Dacnusini), P. tridentata sp. nov., is described and illustrated from northwestern China (Ningxia). The genus Proantrusa Tobias is newly recorded for China.
    Keywords: taxonomy ; parasitoid ; new record ; Palearctic ; Dacnusini
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...