Results 71 to 80 of about 1,236,967 (238)

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS 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

Douglas Cardinal Guest Lecture

open access: yes, 1989
Architectural projects and/or sites mentioned: Saint Mary's Church (Red Deer, Alb.) (Douglas Cardinal, 1969) (Red Deer, Alberta, Canada) ; Grande Prairie Regional College (Douglas Cardinal, 1979) (Grande Prairie, Alberta, Canada) ; Cardinal ...
Cardinal, Douglas
core   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS 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

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Analysis of the variability of cardinal temperatures in rice [PDF]

open access: yes, 2011
Rice is one of a world's most important food crops. Rice is exclusively grown in all over the world, in various agro ecosystems. Climatic changes, loss of agricultural lands because of urbanization are some of the critical points in rice production in ...
Dhanushka Perera, Jayani
core  

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui   +4 more
wiley   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

open access: yesFEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil   +3 more
wiley   +1 more source

ESTIMATION OF CARDINAL TEMPERATURES IN GERMINATION DATA ANALYSIS [PDF]

open access: yes, 1996
Seed germination is a complex biological process which is influenced by various environmental and genetic factors. The effects of temperature on plant development are the basis for models used to predict the timing of germination.
Price, William J.   +7 more
core   +1 more source

Cardinal of 1913; Cardinal (Fayetteville, Ark.)

open access: yes, 1913
16The University of Arkansas, Fayetteville yearbook was first published in 1897 as the Cardinal. The Cardinal was published through 1915, and in 1916 the name of the yearbook was changed to the Razorback.This material may depict ethnic, racial, and ...

core   +1 more source

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