Methylmalonic acid — an endogenous toxin?Cellular and Molecular Life Sciences - Tập 62 - Trang 621-624 - 2005
S. Kölker, J. G. Okun
Methylmalonic acid was previously considered as major neurotoxin in
methylmalonic acidurias. In contrast, recent studies support the notion that
other metabolites deriving from propionyl-coenzyme A, inducing synergistic
inhibition of mitochondrial energy metabolism, are more important than
methylmalonic acid to understand the neuropathogenesis of this disease. However,
it is not yet known whether ... hiện toàn bộ
TLR4 and CD14 trafficking and its influence on LPS-induced pro-inflammatory signalingCellular and Molecular Life Sciences - Tập 78 - Trang 1233-1261 - 2020
Anna Ciesielska, Marta Matyjek, Katarzyna Kwiatkowska
Toll-like receptor (TLR) 4 belongs to the TLR family of receptors inducing
pro-inflammatory responses to invading pathogens. TLR4 is activated by
lipopolysaccharide (LPS, endotoxin) of Gram-negative bacteria and sequentially
triggers two signaling cascades: the first one involving TIRAP and MyD88 adaptor
proteins is induced in the plasma membrane, whereas the second engaging adaptor
proteins TRAM ... hiện toàn bộ
Transposase and cointegrase: specialized transposition proteins of the bacterial insertion sequence IS21 and related elementsCellular and Molecular Life Sciences - Tập 58 Số 3 - Trang 403-419 - 2001
Berger, B., Haas, D.
The bacterial insertion sequence IS21 shares with many insertion sequences a
two-step, reactive junction transposition pathway, for which a model is
presented in this review: a reactive junction with abutted inverted repeats is
first formed and subsequently integrated into the target DNA. The reactive
junction occurs in IS21-IS21 tandems and IS21 minicircles. In addition, IS21
shows a unique speci... hiện toàn bộ
CorrectionCellular and Molecular Life Sciences - Tập 40 - Trang 230-230 - 1984
G. Bynke, R. Håkanson, J. Hörig
Disaccharidase rhythm in rat small intestine; no relationship with mitosis rhythmCellular and Molecular Life Sciences - Tập 34 - Trang 700-701 - 1978
Masayuki Saito, Masami Suda
Same circadian difference in the specific activities of sucrase and maltase was
observed in the purified brush border fraction as in the crude homogenate of the
mucosa of rat small intestine, suggesting that the disaccharidase rhythm is not
due to the mitosis rhythm of epithelial cells.
Key role of glutamic acid for the cytotoxic activity of the cyclotide cycloviolacin O2Cellular and Molecular Life Sciences - Tập 63 - Trang 235-245 - 2006
A. Herrmann, E. Svangård, P. Claeson, J. Gullbo, L. Bohlin, U. Göransson
Cyclotides are cyclic plant proteins with potent cytotoxic effects. Here we
systematically probed the importance of surface-exposed charged amino acid
residues of the cyclotide cycloviolacin O2, using a strategy involving chemical
modifications. We show that the single glutamic acid plays a key role for the
cytotoxicity: methylation of this residue produced a 48-fold decrease in
potency. Virtually... hiện toàn bộ
Circadian rhythmicity is involved in photoperiodic time measurement in the aphidMegoura viciaeCellular and Molecular Life Sciences - Tập 49 - Trang 711-713 - 1993
M. Vaz Nunes, J. Hardie
The photoperiodic clock in the vetch aphidMegoura viciae is generally accepted
to be based on a non-circadian mechanism or “hourglass”, as no evidence has been
found for the involvement of the circadian system in the photoperiodic response.
By using a recently-devised protocol which discriminates between single and
repeated night length measurement, we demonstrate here that long-night
measurement ... hiện toàn bộ
Guidance of circular RNAs to proteins’ behavior as binding partnersCellular and Molecular Life Sciences - Tập 76 - Trang 4233-4243 - 2019
Junyun Luo, Hui Liu, Siyu Luan, Zhaoyong Li
Circular RNAs (circRNAs) are single-stranded and covalently closed back-splicing
products of pre-mRNAs. They can be derived from exons, introns, or exons with
intron retained between exons of transcripts, as well as antisense transcripts.
CircRNAs have been reported to function as microRNA sponges, regulate gene
transcription mediated by RNA polymerase II, and modulate the splicing or
stability of... hiện toàn bộ