Results 151 to 160 of about 23,605 (324)

The Hypercube of Life: How Protein Stability Imposes Limits on Organism Complexity and Speed of Molecular Evolution [PDF]

open access: yesarXiv, 2007
Classical population genetics a priori assigns fitness to alleles without considering molecular or functional properties of proteins that these alleles encode. Here we study population dynamics in a model where fitness can be inferred from physical properties of proteins under a physiological assumption that loss of stability of any protein encoded by ...
arxiv  

Machine Learning for Protein Function [PDF]

open access: yesarXiv, 2016
Systematic identification of protein function is a key problem in current biology. Most traditional methods fail to identify functionally equivalent proteins if they lack similar sequences, structural data or extensive manual annotations. In this thesis, I focused on feature engineering and machine learning methods for identifying diverse classes of ...
arxiv  

The Case for a Hot Archean Climate and its Implications to the History of the Biosphere [PDF]

open access: yesarXiv, 2015
The case for a much warmer climate on the early Earth than now is presented. The oxygen isotope record in sedimentary chert and the compelling case for a near constant isotopic oxygen composition of seawater over geologic time support thermophilic surface temperatures prevailing in the Archean, with some support for hot conditions lasting until about 1.
arxiv  

Developing Genetic Tools for Geobacillus [PDF]

open access: yes, 2014
Bacillus and Geobacillus are the primary bacterium used in biotechnology industries due to their ability to excrete extracellular materials such as proteins, enzymes and other byproducts.
Artale, Brittany
core   +2 more sources

Cuantificación, aislamiento e identificaciónde comunidades anaerobias amilolíticas de un manantial termomineral de Paipa, Boyacá

open access: yesRevista Colombiana de Biotecnología, 2004
Se cuantif icaron microorganismos anaerobios termofílicos amilolíticos de un manantial termomineral en la región andina (5° 45' 69’’ N, 73° 6' 61’’ W, 2500 msnm) a través del Número Más Probable (NMP). Los recuentos microbianos de las poblaciones
Posada Yully   +6 more
doaj  

Life in extraterrestrial environments Quarterly status report, 1 Dec. 1968 - 28 Feb. 1969 [PDF]

open access: yes
Daily freezing, thawing cycles, and ultraviolet irradiation effects on bacteria ...

core   +1 more source

ATP-Stimulated, DNA-Mediated Redox Signaling by XPD, a DNA Repair and Transcription Helicase [PDF]

open access: yes, 2011
Using DNA-modified electrodes, we show DNA-mediated signaling by XPD, a helicase that contains a [4Fe-4S] cluster and is critical for nucleotide excision repair and transcription.
Barton, Jacqueline K.   +4 more
core   +1 more source

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