Results 11 to 20 of about 70,091 (229)

The actin multigene family of Paramecium tetraurelia [PDF]

open access: yesBMC Genomics, 2007
Background A Paramecium tetraurelia pilot genome project, the subsequent sequencing of a Megabase chromosome as well as the Paramecium genome project aimed at gaining insight into the genome of Paramecium.
Wagner Erika   +5 more
doaj   +4 more sources

The Multigenic Sphingomyelin Synthase Family [PDF]

open access: yesJournal of Biological Chemistry, 2006
Sphingomyelin (SM)3 is a vital component of cellular membranes in organisms ranging from mammals to protozoa. Its production involves the enzymatic transfer of a phosphocholine head group fromphosphatidylcholine to ceramide, yielding diacylglycerol in the process.
Geta Tafesse, F.   +2 more
openaire   +4 more sources

Architecture, Chromatin and Gene Organization of Toxoplasma gondii Subtelomeres

open access: yesEpigenomes, 2022
Subtelomeres (ST) are chromosome regions that separate telomeres from euchromatin and play relevant roles in various biological processes of the cell. While their functions are conserved, ST structure and genetic compositions are unique to each species ...
Susana M. Contreras   +9 more
doaj   +1 more source

Multigene families and vestigial sequences [PDF]

open access: yesProceedings of the National Academy of Sciences, 1986
Random duplication and deletion events generate complex genomes carrying a large amount of dispensable sequences. We have simulated such events in a computer model. We followed the evolution of a genome carrying at least one copy of each type of gene.
W F, Loomis, M E, Gilpin
openaire   +2 more sources

Emergence and Prevalence of an African Swine Fever Virus Variant in Wild Boar Populations in South Korea from 2019 to 2022

open access: yesViruses, 2023
African swine fever (ASF), a viral disease caused by the African swine fever virus (ASFV), is associated with high mortality rates in domestic pigs and wild boars. ASF has been spreading since its discovery in wild boars in Korea in October 2019. Genomic
Garam Kim   +8 more
doaj   +1 more source

Species-Specific Duplication of Surface Antigen Genes in Paramecium

open access: yesMicroorganisms, 2022
Paramecium is a free-living ciliate that undergoes antigenic variation and still the functions of these variable surface antigen coats in this non-pathogenic ciliate remain elusive.
Marcello Pirritano   +3 more
doaj   +1 more source

Antigenicity and adhesiveness of a Plasmodium vivax VIR-E protein from Brazilian isolates

open access: yesMemorias do Instituto Oswaldo Cruz, 2022
BACKGROUND Plasmodium vivax, the major cause of malaria in Latin America, has a large subtelomeric multigene family called vir. In the P. vivax genome, about 20% of its sequences are vir genes.
Ana Paula Schappo   +10 more
doaj   +1 more source

Inference of Selection Based on Temporal Genetic Differentiation in the Study of Highly Polymorphic Multigene Families [PDF]

open access: yes, 2012
The co-evolutionary arms race between host immune genes and parasite virulence genes is known as Red Queen dynamics. Temporal fluctuations in allele frequencies, or the ‘turnover’ of alleles at immune genes, are concordant with predictions of the Red ...
Cock van Oosterhout   +2 more
core   +7 more sources

Evolution of Guanylate Binding Protein (GBP) Genes in Muroid Rodents (Muridae and Cricetidae) Reveals an Outstanding Pattern of Gain and Loss

open access: yesFrontiers in Immunology, 2022
Guanylate binding proteins (GBPs) are paramount in the host immunity by providing defense against invading pathogens. Multigene families related to the immune system usually show that the duplicated genes can either undergo deletion, gain new functions ...
João Vasco Côrte-Real   +14 more
doaj   +1 more source

Cloning and Characterization of Two Phosphate Transporters from Medicago truncatula Roots: Regulation in Response to Phosphate and to Colonization by Arbuscular Mycorrhizal (AM) Fungi

open access: yesMolecular Plant-Microbe Interactions, 1998
Most vascular plants can acquire phosphate from the environment either directly, via the roots, or indirectly, via a fungal symbiont that invades the cortical cells of the root. Here we have identified two cDNA clones (MtPT1 and MtPT2) encoding phosphate
Henry Liu   +3 more
doaj   +1 more source

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