Results 81 to 90 of about 4,218 (198)

Structural basis for the site-specific incorporation of lysine derivatives into proteins. [PDF]

open access: yesPLoS ONE, 2014
Posttranslational modifications (PTMs) of proteins determine their structure-function relationships, interaction partners, as well as their fate in the cell and are crucial for many cellular key processes.
Veronika Flügel   +2 more
doaj   +1 more source

Organic compatible solutes of halotolerant and halophilic microorganisms [PDF]

open access: yes, 2014
從苗栗通宵鹽山取得的粗鹽結晶中純化出十八株能生長在4.0 M高鹽的菌株。由16S rDNA序列的分析,確認這十八菌株均為極端高鹽太古生物,其中呈紅色菌落的HLR1~6這六株菌均屬於Haloarcula屬,而十二株淺紅色菌落的HLO1~6及白色菌落的HLW1~6屬於Natrinema屬。這十二株Natrinema屬的菌株均為長桿狀細胞,皆具有觸酶及氧化酶的活性,可以利用色胺酸、檸檬酸和葡萄糖,但都不能分解澱粉、明膠、脂質及卵磷脂,和Natrinema屬的菌株之16S rDNA相似度在97~99 %之間 ...
游詒婷, You, Yi-Ting
core   +1 more source

Microbial Conversion of Glycerol Into 1,3‐Propanediol by Fermentation: Review of Fundamentals and Operational Strategies

open access: yesMicrobial Biotechnology, Volume 18, Issue 11, November 2025.
This review highlights recent advances in microbial fermentation strategies for converting glycerol, a biodiesel by‐product, into 1,3‐propanediol. It discusses metabolic pathways, microbial inocula and key operational parameters to optimise production, supporting sustainable chemical synthesis aligned with circular economy principles. ABSTRACT Over the
María Fernanda Pérez‐Bernal   +4 more
wiley   +1 more source

Coexistence of Group I and Group II Chaperonins in the Archaeon Methanosarcina mazei [PDF]

open access: yesJournal of Biological Chemistry, 2003
Two distantly related classes of cylindrical chaperonin complexes assist in the folding of newly synthesized and stress-denatured proteins in an ATP-dependent manner. Group I chaperonins are thought to be restricted to the cytosol of bacteria and to mitochondria and chloroplasts, whereas the group II chaperonins are found in the archaeal and eukaryotic
Klunker, D.   +10 more
openaire   +4 more sources

Charakterisierung der molekularen Determinanten zur hochaffinen Bindung der kompatiblen Soluten Glycin Betain, Prolin Betain, Ectoin und Hydroxyectoin durch Substratbindeproteine von bakteriellen ABC-Transportern [PDF]

open access: yes, 2006
Die Akkumulation von kompatiblen Soluten ist ein weit verbreiteter Schutzmechanismus gegen variierende Umweltbedingungen und wird in vielen Spezies der Bacteria und Archaea verwendet.
Bremer, Erhard (Prof. Dr.)   +1 more
core   +1 more source

Rational design of a covalent ACE2 decoy receptor that broadly neutralizes SARS‐CoV‐2 variants

open access: yesProtein Science, Volume 34, Issue 10, October 2025.
Abstract The ongoing evolution of severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) and the emergence of variants that evade existing vaccines and antibody therapies necessitate novel, potent, and broad‐spectrum antiviral strategies. Enhancing therapeutic proteins with additional covalent binding capabilities, such as minibinders and ...
Nobumasa Hino   +18 more
wiley   +1 more source

Role of the Cell Surface of Methanosarcina mazei in Cell Aggregation [PDF]

open access: yesApplied and Environmental Microbiology, 1985
Colonial aggregates of Methanosarcina (= Methanococcus ) mazei were examined with scanning and transmission electron microscopy. Cells are irregular and grouped into multicellular sarcinal colonies, which may disaggregate in older cultures. The protoplast is bounded by
R W, Robinson   +3 more
openaire   +2 more sources

Comparative genomics highlights the unique biology of Methanomassiliicoccales, a Thermoplasmatales-related seventh order of methanogenic archaea that encodes pyrrolysine [PDF]

open access: yes, 2014
BACKGROUND: A seventh order of methanogens, the Methanomassiliicoccales, has been identified in diverse anaerobic environments including the gastrointestinal tracts (GIT) of humans and other animals and may contribute significantly to methane emission ...
Bardot, Olivier   +11 more
core   +4 more sources

An evolved pyrrolysyl-tRNA synthetase with polysubstrate specificity expands the toolbox for engineering enzymes with incorporation of noncanonical amino acids

open access: yesBioresources and Bioprocessing, 2023
Aminoacyl-tRNA synthetase (aaRS) is a core component for genetic code expansion (GCE), a powerful technique that enables the incorporation of noncanonical amino acids (ncAAs) into a protein. The aaRS with polyspecificity can be exploited in incorporating
Ke Liu   +9 more
doaj   +1 more source

Methanogens, sulphate and heavy metals: a complex system [PDF]

open access: yes, 2015
Anaerobic digestion (AD) is a well-established technology used for the treatment of wastes and wastewaters with high organic content. During AD organic matter is converted stepwise to methane-containing biogasa renewable energy carrier.
A Gupta   +113 more
core   +2 more sources

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