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Statements

Subject Item
n2:RIV%2F61389030%3A_____%2F11%3A00380676%21RIV13-AV0-61389030
rdf:type
n8:Vysledek skos:Concept
dcterms:description
The mRNA-protein complexes (mRNPs, Messenger ribonucleoprotein particles) are the %22couriers%22 of the modem eukaryotes that process, store and deliver messages (transcripts) from the nucleus to the appropriate subcellular compartments and beyond. Presence of mRNPs arbitrates the posttranscriptional control of gene expression by editing the precursor RNA to maturity, postulate its subcellular localization and/or storage and dictate its fate once in the cytoplasm; either to be translated or dispensed through mRNA degradation. Initiation of transcription is coupled with processing of the transcribed message and the immediate association of the transcript with a set of structural and regulatory proteins. Per se, mRNP complexes sub-optimize transcription by recruiting RNA-binding proteins which are the core component of the RNP activities that culminate overall distribution and abundance of individual proteins. This asymmetric distribution of the mRNA is the determinant of protein gradient and is known to influence cell polarity, cell fate and overall patterning during development. Embryo patterning in Drosophila, polarization of maternal mRNA to daughter cell in budding yeast and directional growth of mammalian neural cell and pollen tubes of flowering plants, are the most prominent examples of mRNP facilitated posttranscriptional control, influencing cell fates and patterns of development. The outline of the article encompasses step-wise cellular processes leading to the formation of mRNPs and its implication to cellular activities. A dedicated section is also integrated discussing the recent findings on the unique mechanism of RNP formation in the male gametophyte of Nicotiana tabaccum. A proposed model outlines the network of posttranscriptional control with a focus on the role of RNPs is also presented aiming to stimulate future research with a perspective of advancing our knowledge on the subject and its plausible application in improving food quality. The mRNA-protein complexes (mRNPs, Messenger ribonucleoprotein particles) are the %22couriers%22 of the modem eukaryotes that process, store and deliver messages (transcripts) from the nucleus to the appropriate subcellular compartments and beyond. Presence of mRNPs arbitrates the posttranscriptional control of gene expression by editing the precursor RNA to maturity, postulate its subcellular localization and/or storage and dictate its fate once in the cytoplasm; either to be translated or dispensed through mRNA degradation. Initiation of transcription is coupled with processing of the transcribed message and the immediate association of the transcript with a set of structural and regulatory proteins. Per se, mRNP complexes sub-optimize transcription by recruiting RNA-binding proteins which are the core component of the RNP activities that culminate overall distribution and abundance of individual proteins. This asymmetric distribution of the mRNA is the determinant of protein gradient and is known to influence cell polarity, cell fate and overall patterning during development. Embryo patterning in Drosophila, polarization of maternal mRNA to daughter cell in budding yeast and directional growth of mammalian neural cell and pollen tubes of flowering plants, are the most prominent examples of mRNP facilitated posttranscriptional control, influencing cell fates and patterns of development. The outline of the article encompasses step-wise cellular processes leading to the formation of mRNPs and its implication to cellular activities. A dedicated section is also integrated discussing the recent findings on the unique mechanism of RNP formation in the male gametophyte of Nicotiana tabaccum. A proposed model outlines the network of posttranscriptional control with a focus on the role of RNPs is also presented aiming to stimulate future research with a perspective of advancing our knowledge on the subject and its plausible application in improving food quality.
dcterms:title
Safe Keeping the Message - mRNP Complexes Tweaking after Transcription Safe Keeping the Message - mRNP Complexes Tweaking after Transcription
skos:prefLabel
Safe Keeping the Message - mRNP Complexes Tweaking after Transcription Safe Keeping the Message - mRNP Complexes Tweaking after Transcription
skos:notation
RIV/61389030:_____/11:00380676!RIV13-AV0-61389030
n8:predkladatel
n9:ico%3A61389030
n3:aktivita
n20:P n20:Z
n3:aktivity
P(GA522/09/0858), P(LC06004), P(OC08011), P(OC10054), Z(AV0Z50380511)
n3:cisloPeriodika
Jun 2012
n3:dodaniDat
n14:2013
n3:domaciTvurceVysledku
n10:5796415 n10:5468582 n10:3997073
n3:druhVysledku
n16:J
n3:duvernostUdaju
n7:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
228049
n3:idVysledku
RIV/61389030:_____/11:00380676
n3:jazykVysledku
n15:eng
n3:klicovaSlova
mature pollen; Arabidopsis Thaliana; messenger RNA localization
n3:klicoveSlovo
n12:mature%20pollen n12:messenger%20RNA%20localization n12:Arabidopsis%20Thaliana
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[33578DE8ACBE]
n3:nazevZdroje
Advances in Experimental Medicine and Biology
n3:obor
n19:EB
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:projekt
n4:LC06004 n4:OC10054 n4:GA522%2F09%2F0858 n4:OC08011
n3:rokUplatneniVysledku
n14:2011
n3:svazekPeriodika
722
n3:tvurceVysledku
Hafidh, Said Čapková, Věra Honys, David
n3:wos
000293762900008
n3:zamer
n11:AV0Z50380511
s:issn
0065-2598
s:numberOfPages
19
n17:doi
10.1007/978-1-4614-0332-6_8