Browsing Τμήμα Βιολογικών Επιστημών / Department of Biological Sciences by Title
Now showing items 554-573 of 677
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Article
Separation of the complexes formed between the regulatory and catalytic subunits of cyclic adenosine monophosphate-dependent protein kinase and topoisomerase I activity in preovulatory follicle-enriched immature rat ovaries
(1989)Our previous studies have shown that the regulatory subunits of the type II form of cAMP-dependent protein kinase (R‖) present in soluble extracts of immature rat ovaries elute from diethylaminoethyl-cellulose as three ...
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Article
Sequence evidence for common ancestry of eukaryotic endomembrane coatomers
(2016)Eukaryotic cells are defined by compartments through which the trafficking of macromolecules is mediated by large complexes, such as the nuclear pore, transport vesicles and intraflagellar transport. The assembly and ...
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Article
A sequence polymorphism in the 3′-nontranslated region of the proα1 chain of type I procollagen
(1990)
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Article
Serum total homocysteine, folate, 5,10-methylenetetrahydrofolate reductase (MTHFR) 677C→T genotype and subclinical atherosclerosis
(2009)Objective : To determine the relationship of serum total homocysteine (tHcy), serum folate and 5,10-methylenetetrahydrofolate reductase (MTHFR) 677C→T genotype with ultrasonic arterial wall measurements associated with ...
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Article
A serum-free and defined medium for the culture of mammalian postimplantation embryos
(2015)Whole embryo culture (WEC) of postimplantation rodent embryos is widely used for the study of mammalian embryogenesis and developmental toxicity testing. Its major advantage is that it allows direct access to embryos for ...
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Article
Sex determination of scopoli's shearwater (calonectris diomedea) juveniles: A combined molecular and morphometric approach
(2013)The absence of juvenile sexual dimorphism in birds often impedes sex determination using external morphology. We examined sex ratio variation in Scopoli's Shearwater (Calonectris diomedea) fledglings (n = 135) on a Strofades ...
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Article
Shared mechanisms in stemness and carcinogenesis: Lessons from oncogenic viruses
(2013)A rise in technologies for epigenetic reprogramming of cells to pluripotency, highlights the potential of understanding and manipulating cellular plasticity in unprecedented ways. Increasing evidence points to shared ...
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Article
Short communication: Molecular epidemiology of HIV type 1 infection in northern Greece (2009-2010): Evidence of a transmission cluster of HIV Type 1 Subtype A1 drug-resistant strains among men who have sex with men
(2014)A prospective molecular epidemiology study of HIV-1 infection was conducted in newly diagnosed and antiretroviral-naive patients in Northern Greece between 2009 and 2010 using a predefined enrolling strategy. Phylogenetic ...
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Article
Signaling mechanisms controlling cell fate and embryonic patterning
(2012)During development, signaling pathways specify cell fates by activating transcriptional programs in response to extracellular signals. Extensive studies in the past 30 years have revealed that surprisingly fewpathways exist ...
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Article
Significant pairwise co-occurrence patterns are not the rule in the majority of biotic communities
(2012)Our aim was to investigate species co-occurrence patterns in a large number of published biotic communities, in order to document to what extent species associations can be found in presence-absence matrices. We also aim ...
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Article
Silencing of human polycomb target genes is associated with methylation of histone H3 Lys 27
(2004)Polycomb group (PcG) complexes 2 and 3 are involved in transcriptional silencing. These complexes contain a histone lysine methyltransferase (HKMT) activity that targets different lysine residues on histones H1 or H3 in ...
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Article
A simple mechanochemical model for calcium signalling in embryonic epithelial cells
(2019)Calcium signalling is one of the most important mechanisms of information propagation in the body. In embryogenesis the interplay between calcium signalling and mechanical forces is critical to the healthy development of ...
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Article
Simple null model analysis subsumes a new species co-occurrence index: A comment on Mainali et al. (2022)
(Wiley, 2022-10-02)Recently, Mainali et al. (2022, termed MSSF henceforth) proposed a new index of pair-wise species co-occurrence based on the log odds ratio α of conditional occurrence probability. Under the assumption that the total numbers ...
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Book Chapter
Single and multiplexed fluorescent in situ hybridization using quantum dots nanocrystals in Xenopus
(Springer New York, 2015)The photostability and narrow emission spectra of quantum dots (QDs) make them ideal candidates for whole-mount fluorescent in situ hybridization. Here we describe a method for non-amplified, single and multiplexed whole-mount ...
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Article
A single base mutation in type I procollagen (COL1A1) that converts glycine α1-541 to aspartate in a lethal variant of osteogenesis imperfecta: Detection of the mutation with a carbodiimide reaction of DNA heteroduplexes and direct sequencing of products of the PCR
(1991)Skin fibroblasts from a proband with a lethal variant of osteogenesis imperfecta synthesized both apparently normal type I procollagen and a type I procollagen that had slow electrophoretic mobility because of posttranslational ...
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Article
A single base mutation that converts glycine 907 of the α2(I) chain of type I procollagen to aspartate in a lethal variant of osteogenesis imperfecta. The single amino acid substitution near the carboxyl terminus destabilizes the whole triple helix
(1989)Type I procollagen was examined in cultured skin fibroblasts from a patient with a lethal variant of osteogenesis imperfecta. About half of the pro-α chains were post-translationally overmodified and had a decreased thermal ...
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Article
Single-Cell Tracing Dissects Regulation of Maintenance and Inheritance of Transcriptional Reinduction Memory
(2020)Transcriptional memory of gene expression enables adaptation to repeated stimuli across many organisms. However, the regulation and heritability of transcriptional memory in single cells and through divisions remains poorly ...
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Article
Single-shot optical sectioning using two-color probes in HiLo fluorescence microscopy
(2011)We describe a wide-field fluorescence microscope setup which combines HiLo microscopy technique with the use of a two-color fluorescent probe. It allows one-shot fluorescence optical sectioning of thick biological moving ...
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Article
Small Molecule Targets TMED9 and Promotes Lysosomal Degradation to Reverse Proteinopathy
(2019)Intracellular accumulation of misfolded proteins causes toxic proteinopathies, diseases without targeted therapies. Mucin 1 kidney disease (MKD) results from a frameshift mutation in the MUC1 gene (MUC1-fs). Here, we show ...
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Article
Smithornis broadbills produce loud wing song by aeroelastic flutter of medial primary wing feathers
(2016)Broadbills in the genus Smithornis produce a loud brreeeeet during a distinctive flight display. It has been posited that this klaxon-like sound is generated non-vocally with the outer wing feathers (P9, P10), but no ...