Results 91 to 100 of about 4,904 (241)
Confidence limits of evolutionary synthesis models [PDF]
Evolutionary synthesis models are a fundamental tool to interpret the properties of observed stellar systems. In order to achieve a meaningful comparison between models and real data, it is necessary to calibrate the models themselves, i.e.
D. Schaerer +6 more
core +1 more source
Promiscuous stimulation of HSP70 ATPase activity by parasite‐derived J‐domains
The malaria parasite Plasmodium falciparum exports three highly homologous yet functionally divergent J‐domain proteins into human erythrocytes. Here, we show that J‐domains isolated from all three proteins effectively stimulate the ATPase activity of both endogenous host and exported parasite HSP70 chaperones.
Julian Barth +6 more
wiley +1 more source
Evolutionary population synthesis and the Magellanic Clouds clusters
Synthetic bolometric luminosities and U, B, V fluxes are computed for models of globular clusters using available stellar evolutionary tracks for two chemical compositions and for a large interval of age.
CAPUZZO DOLCETTA, Roberto Angelo
core
Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman +4 more
wiley +1 more source
Cytosolically synthesized chloroplast preproteins are translocated across the outer and inner envelope membranes through translocons called TOC and TIC, respectively. In green algae and plants, the TIC core is composed of essential membrane proteins, Tic12, Tic20, and Tic214.
Mengyi Li, Xueyang Zhao, Masato Nakai
wiley +1 more source
The recent discovery and analysis of a classical Cepheid in the well detached, double-lined, eclipsing binary OGLE-LMC-CEP0227, has provided the first determination of the dynamical mass of a classical Cepheid variable to an unprecedented 1% accuracy. We show here that modern stellar evolution models widely employed to study Galactic and extragalactic ...
Cassisi, Santi, Salaris, Maurizio
openaire +2 more sources
Rapid screening of staphylokinase protein variants using an unpurified cell‐free expression system
An unpurified cell‐free protein synthesis (CFPS) platform enables rapid functional screening of staphylokinase variants. Direct plasminogen‐activation assays performed in microplate format provide real‐time activity readouts, allowing rapid identification and ranking of variants with improved or reduced fibrinolytic activity without protein ...
Maria Tomková +3 more
wiley +1 more source
Impact of Wolf-Rayet stellar winds on compact object formation [PDF]
openWolf-Rayet (WR) stars are massive stars that have lost their hydrogen envelopes, exposing the underlying helium cores. In the Small Magellanic Cloud (SMC), 12 WR stars have been observed, 7 of which appear to be single.
MESINI, SOFIA
core
Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke +4 more
wiley +1 more source
High-precision stellar astrophysics: testing models of stellar structure using asteroseismic, astrometric, and spectroscopic constraints [PDF]
Stellar evolutionary models are crucial for much of astrophysical research, including nucleosynthesis, exoplanetary systems, and Galaxy formation. However, their internal structures have only recently been tested through asteroseismic observations ...
Matteuzzi, Massimiliano <1996>
core +1 more source

