Results 61 to 70 of about 1,508,662 (316)

A class of Fibonacci-type sequences

Discrete Mathematics, 1974
Let \(\{L_n : n\ge 1\}\) be a sequence of the form \[ L_n= \min\left( \sum_{j=1}^p L_{n-a_j}\quad (n>e),\quad \sum_{j=1}^q L_{n-b_j}\quad (n>e)\right), \] where \(\{a_j\}\) and \(\{b_j\}\) are positive integers, and \(e = \max_{i,j} \{a_i ,b_j\}\). A necessary and sufficient condition on the integers \(\{a_j\}\) and \(\{b_j\}\) is given so that, for ...
openaire   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Genotypic diversity is associated with clinical outcome and phenotype in cryptococcal meningitis across Southern Africa [PDF]

, 2015
This work was supported by Wellcome Trust (UK) (www.wellcome.ac.uk) awards to TB (WT069991), GM (WT098316), and JNJ (WT081794); Medical Research Council (MRC UK) (www.mrc.ac.uk) awards to MCF (K000373/1), RCM (G0601171), TSH (G1002327); European Research
Fisher, Matthew C, Matthew C Fisher, Matthew C. Fisher (129755), Angela Loyse (292490), Meintjes, Graeme, Fisher, Matthew C., Emma J. Robertson (760738), Sabiiti, Wilber, O'Hanlon, SJ, O'Hanlon, Simon J, Joseph N Jarvis, Tihana Bicanic (718812), Thomas S. Harrison (222993), Fisher, MC, Karen M Fuentes-Cabrejo, Fuentes-Cabrejo, KM, Fuentes-Cabrejo, Karen M, Angela Loyse, Fisher, M, Harrison, Thomas S, Harrison, TS, Robertson, EJ, Simon J. O’Hanlon (760740), Loyse, Angela, Meintjes, G, Simon J O'Hanlon, Robin C May, Jarvis, Joseph N, Emma J Robertson, Wilber Sabiiti (170648), Thomas S Harrison, Mathew A. Beale (663616), Wilber Sabiiti, Robertson, Emma J, Joseph N. Jarvis (435279), Robertson, Emma J., Jarvis, JN, May, Robin C, Mathew A Beale, Karen M. Fuentes-Cabrejo (760739), Graeme Meintjes (221054), Beale, Mathew A, Tihana Bicanic, Sabiiti, W, Bicanic, T, May, RC, Loyse, A, May, Robin C; id_orcid, Bicanic, Tihana, Graeme Meintjes, Beale, MA, Robin C. May (170650)   +51 more
core   +1 more source

Complete Circular Genome Sequences of Brachyspira hyodysenteriae Isolates of the Four Different Sequence Types Causing Swine Dysentery in Switzerland. [PDF]

, 2021
The complete genomes of four Brachyspira hyodysenteriae isolates of the four different sequence types (STs) (ST6, ST66, ST196, and ST197) causing swine dysentery in Switzerland were generated by whole-genome sequencing and de novo hybrid assembly of ...
Schmitt, Sarah, Zeeh, Friederike, Perreten, Vincent, García-Martín, Ana B.   +3 more
core   +1 more source

Deciphering vancomycin resistance in Enterococcus faecium: gene distribution, sequence typing, and global phylogenetic analysis

Frontiers in Microbiology
ObjectiveThis study analyzes the global prevalence and distribution of vancomycin resistance genes (van) in Enterococcus faecium and examines the genetic relationship and epidemiological characteristics of strains carrying these genes.MethodA total of 3 ...
Ruyu Yan, Jun Ji, Han Shen, Xiaoli Cao, Xiaoli Cao   +4 more
doaj   +1 more source

ESCHERICHIA COLI phenotypic characteristics and antagonistic activity in opisthorchiasis invasion

Инфекция и иммунитет, 2023
Opisthorchis felineus invasion in human causes inflammatory and dyskinetic disorders of the gastrointestinal tract accompanied by altered phenotypic characteristics in colon microbiota.
L. V. Kataeva, N. F. Karpukhina, A. A. Vakarina, O. N. Kolotova, T. F. Stepanova, K. B. Stepanova   +5 more
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Persistence of Mycoplasma hyopneumoniae sequence types in spite of a control program for enzootic pneumonia in pigs. [PDF]

, 2017
Enzootic pneumonia (EP) in pigs caused by Mycoplasma (M.) hyopneumoniae has successfully been combatted in Switzerland. A control program was fully implemented in 2004 which is based on total depopulation strategies of affected fattening farms as well as
Overesch, Gudrun, Kuhnert, Peter, Peter Kuhnert, Gudrun Overesch   +3 more
core   +1 more source

High-risk clonal groups of avian pathogenic Escherichia coli (APEC) demonstrate heterogeneous phenotypic characteristics in vitro and in vivo

Virulence
Avian Pathogenic Escherichia coli (APEC), a major bacterial pathogen of poultry, comprises a diverse range of high-risk clonal groups. However how these lineages interact with avian host cells remains poorly characterized. This study examined the ability
James R. G. Adams, Huijun Long, Charlotte A. Birdsall, Kamran Qureshi, Emma King, Sara Perez, Keith Warner, Shahriar Behboudi, Roberto M. La Ragione, Jai W. Mehat   +9 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source