Results 71 to 80 of about 1,712,539 (245)
Patch Dynamics of Nutrients, Fecal Indicator Bacteria and Chlorophyll near the Tijuana River [PDF]
, 2013 The overall project goal is improved understanding of the physical and biological controls on nearshore (0-15 m water depth) patchiness of nutrients, fecal indicator bacteria (FIB) and chlorophyll (chl) near the Tijuana ...
Feddersen, Falk, Franks, Peter
core +1 more source
FEBS Letters, EarlyView.Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell +2 more
wiley +1 more source
Coliform bacteria and other potential indicator organisms in a pond. [PDF]
, 1976 Waters containing enteropathogenic microorganisms (i.e., Salmonella, Shigella) are considered unsafe for human consumption. Traditionally, indicator bacteria have been utilized for the assess- ment of bacteriologically unsafe waters.
Clymore, Gary Lee.
core
Structural and biochemical analysis of a B12 superbinder
FEBS Letters, EarlyView.BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices +3 more
wiley +1 more source
FEBS Letters, EarlyView.Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
wiley +1 more source
FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source
Bacteria spring a surprise [PDF]
, 2014 Cell division involves the precise duplication of all the genetic material in the cell—both the chromosomes and the plasmid DNA—and the equal division of this material between the two daughter cells.
Srinivasan, Rajagopalan +3 more
core +1 more source
DEVELOPMENT OF NEW MEDIUM TERMED ECOL FOR DETECTION OF ESCHERICHIA COLI [PDF]
Iranian Journal of Public Health, 1998 A new medium, termed Ecol was developed for the detection and enumeration of E. coli. The selective properties of Ecol medium for the detection of E.coli from mixed culture in wastewater was tested and compared with conventional coliform media at 37°C ...
M.K. Sharifi-Yazdi;C. Azimi
doaj +2 more sources
Fecal indicator bacteria removal by river networks [PDF]
, 2016 Fecal bacteria have a significant impact on downstream water quality. Removal of fecal bacteria in river systems potentially attenuates downstream impairments and would represent an important ecosystem service.
Huang, Tao
core +1 more source
A Synthetic Signal Varied Weight Indicator in Bacteria
IEEE Access, 2019 Biomolecular computing devices always work in a complex biochemical environment. The weight which shows the importance degree of a specific signal may vary in different environments because it may be influenced by other signals even in the absence of ...
Mei Chen
doaj +1 more source