Results 71 to 80 of about 2,403,682 (282)

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Photometric monitoring of the blazar 3C 345 for the period 1996 - 2006

, 2007
We present the results of the blazar 3C 345 monitoring in Johnson-Cousins BVRI bands for the period 1996 - 2006. We have collected 29 V and 43 R data points for this period; the BI light curves contain a few measurements only.
Angel, Borgeest, González-Pérez, Howard, Jang, Kidger, Kidger, Lobanov, Otterbein, Schramm, Schramm, Schramm, Schramm, Schramm, Smith, Stetson, Villata, Wagner, Zhang, Zhang   +19 more
core   +1 more source

Space VLBI Observations of 3C371 [PDF]

, 1999
We present the first space VLBI observations of 3C~371, carried out at a frequency of 4.8 GHz. The combination of the high resolution provided by the orbiting antenna Highly Advanced Laboratory for Communications and Astronomy (HALCA) and the high ...
Akujor C. E., Alan P. Marscher, Impey C. D., Jose‐Luis Gomez, Kellerman K. I., Lobanov A. P., Stanghellini C.   +6 more
core   +2 more sources

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Leccinum variicolor (Basidiomycota, Boletales) in Poland

Acta Mycologica, 2014
Leccinum variicolor Watling is widespread but it is a rare species in Poland and some other countries, and is either protected or red-listed. This paper describes the morphology and ecology of L. variicolor as well as its distribution in Poland.
Małgorzata Stasińska, Zofia Sotek
doaj   +1 more source

Origin of X-rays in the low state of the FSRQ 3C 273: Evidence of inverse Compton emission

, 2017
We analyze the 2.5--10 keV X-ray spectra of the luminous quasar 3C 273 and simultaneous observations in UV wavelengths from XMM--Newton between 2000 and 2015. The lowest flux level ever was observed in 2015.
Dewangan, Gulab C., Duorah, Kalpana, Gupta, Alok C., Kalita, Nibedita, Wiita, Paul J.   +4 more
core   +1 more source

Short Term Flux and Colour Variations in Low-Energy Peaked Blazars [PDF]

, 2010
We have measured multi-band optical flux and colour variations for a sample of 12 low energy peaked blazars on short, day-to-month, timescales. Our sample contains six BL Lacertae objects and six flat spectrum radio quasars.
Bachev, R., Boeva, S., Gupta, Alok C., Mihov, B., Ovcharov, E., Peneva, S., Rani, Bindu, Semkov, E., Spassov, B., Stoyanov, K., Strigachev, A., Tsvetkova, S., Valcheva, A., Wiita, Paul J.   +13 more
core   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

The ubiquitin ligase RNF115 is required for the clearance of damaged lysosomes

FEBS Letters, EarlyView.
Upon lysosomal rupture, an E3 ubiquitin ligase RNF115 translocates from the cytosol to the damaged lysosomal membrane. Moreover, RNF115 depletion impairs the clearance of damaged lysosomes, identifying it as a key regulator of lysosomal quality control.
Sae Nakanaga, Toshiki Takahashi, Akiko Kuma, Hiroyuki Kawahara   +3 more
wiley   +1 more source

Changes of water quality of the Osówka stream flowing through ponds Syrenie Stawy in Szczecin (NW -Poland) in selected periods in the years 1994–2014

Acta Biologica, 2015
The aim of discernment changes in water quality of stream Osówka flowing through ponds Syrenie Stawy in Szczecin (NW-Poland) conducted in the years 1994–2014 the study of basic water chemistry indices in the Osówka Stream water inflow
Tymoteusz Miller, Gorzysław Poleszczuk, Małgorzata Tokarz   +2 more
doaj   +1 more source