Results 71 to 80 of about 17,602,067 (294)

Distribuição temporal, sincronia reprodutiva e padrões de acasalamento do sapo de reprodução explosiva Dermatonotus muelleri (Anura: Microhylidae)

Revista de Biologia Neotropical, 2022
The knowledge about natural history of a species is fundamental for the proposition of theories in population, community, and behavioral ecology. Dermatonotus muelleri (Boettger, 1885) is one of the several Neotropical anuran species that still lacks ...
Fausto Nomura, Fernando Rogério de Carvalho, Denise Cerqueira Rossa-Feres   +2 more
doaj  

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, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Etude des caractéristiques botaniques, agronomiques et de la biologie florale du melon africain (Cucumis melo var. L. agrestis Naudin, Cucurbitaceae) [PDF]

Biotechnologie, Agronomie, Société et Environnement, 2006
Study of botanic, agronomic characters and fl oral biology of African melon (Cucumis melo L. var. agrestis Naudin, Cucurbitaceae). African melon, Cucumis melo var.
Baudoin JP., Gnamien GY., Zoro Bi AI., Kouonon LC., Djè Y.   +4 more
doaj  

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

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, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Roving females and patient males: a new perspective on the mating strategies of chimpanzees [PDF]

, 2014
Mating strategies are sets of decisions aimed at maximizing reproductive success. For male animals, the fundamental problem that these strategies address is attaining mating access to females in a manner that maximizes their chances of achieving ...
Newton-Fisher, Nicholas E.
core   +1 more source

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

FEBS 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, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Theoretical influence of female mating status and remating propensity on male sperm allocation patterns [PDF]

, 2006
Engqvist L, Reinhold K. Theoretical influence of female mating status and remating propensity on male sperm allocation patterns. JOURNAL OF EVOLUTIONARY BIOLOGY.
Reinhold, Klaus, L. ENGQVIST, K. REINHOLD, Engqvist, Leif ; https://orcid.org/   +3 more
core   +1 more source

How should we measure population-level inbreeding depression? Impacts of standing genetic associations between selfing rate and deleterious mutations

Frontiers in Plant Science
Inbreeding depression (ID) is a major selective force during mating system evolution primarily contributed by highly to partially recessive deleterious mutations.
Kuangyi Xu
doaj   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

FEBS 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, Agnes Banreti, Armelle L. Ernst, Guillaume Leseigneur, Uwe J. Meierhenrich   +4 more
wiley   +1 more source

Floral to green: mating switches moth olfactory coding and preference [PDF]

, 2012
Mating induces profound physiological changes in a wide range of insects, leading to behavioural adjustments to match the internal state of the animal.
Bengtsson, Marie, Becher, Paul G, Sveriges lantbruksuniversitet., Hansson, Bill S., Witzgall, Peter,, Ignell, Rickard, Ahmed, Saveer, Witzgall, P., Saveer, Ahmed,, Becher, Paul,, Kromann, Sophie,, Saveer, A., Balkenius, Anna, Birgersson, G., Bengtsson, M., Kromann, S., Lindblom, Tobias, Lindblom, Tobias,, Balkenius, A., Ignell, R., Balkenius, Anna,, Ignell, Rickard,, Kromann, Sophie, Witzgall, Peter, Bengtsson, Marie,, Lindblom, T., Birgersson, Göran,, Birgersson, Göran, Becher, P., Hansson, B., Hansson, Bill,   +30 more
core   +1 more source