Genomic structure and chromosome location of RPL27A/Rpl27a, the genes encoding human and mouse ribosomal protein L27A

1999 ◽  
Vol 85 (3-4) ◽  
pp. 248-251 ◽  
Author(s):  
J. Kusuda, ◽  
M. Hirai ◽  
R. Tanuma ◽  
M. Hirata ◽  
K. Hashimoto
1996 ◽  
Vol 44 (4) ◽  
pp. 286-291 ◽  
Author(s):  
Béatrice Plougastel ◽  
Tania Jones ◽  
John Trowsdale

Reproduction ◽  
2011 ◽  
Vol 141 (1) ◽  
pp. 21-36 ◽  
Author(s):  
Graham D Johnson ◽  
Claudia Lalancette ◽  
Amelia K Linnemann ◽  
Frédéric Leduc ◽  
Guylain Boissonneault ◽  
...  

Within the sperm nucleus, the paternal genome remains functionally inert and protected following protamination. This is marked by a structural morphogenesis that is heralded by a striking reduction in nuclear volume. Despite these changes, both human and mouse spermatozoa maintain low levels of nucleosomes that appear non-randomly distributed throughout the genome. These regions may be necessary for organizing higher order genomic structure through interactions with the nuclear matrix. The promoters of this transcriptionally quiescent genome are differentially marked by modified histones that may poise downstream epigenetic effects. This notion is supported by increasing evidence that the embryo inherits these differing levels of chromatin organization. In concert with the suite of RNAs retained in the mature sperm, they may synergistically interact to direct early embryonic gene expression. Irrespective, these features reflect the transcriptional history of spermatogenic differentiation. As such, they may soon be utilized as clinical markers of male fertility. In this review, we explore and discuss how this may be orchestrated.


Genomics ◽  
1999 ◽  
Vol 61 (1) ◽  
pp. 37-43 ◽  
Author(s):  
Akemi Nagasawa ◽  
Jun Kudoh ◽  
Setsuko Noda ◽  
Yukihiko Mashima ◽  
Alan Wright ◽  
...  

2019 ◽  
Vol 20 (10) ◽  
pp. 2414 ◽  
Author(s):  
Hexiang Luan ◽  
Jianting Yao ◽  
Zhihang Chen ◽  
Delin Duan

Blue light (BL) plays an important role in regulation of the growth and development of aquatic plants and land plants. Aureochrome (AUREO), the recent BL photoreceptor identified in photosynthetic stramenopile algae, is involved in the photomorphogenesis and early development of Saccharina japonica porophytes (kelp). However the factors that interact with the SjAUREO under BL conditions specifically are not clear. Here in our study, three high quality cDNA libraries with CFU over 5 × 106 and a recombination rate of 100% were constructed respectively through white light (WL), BL and darkness (DK) treatments to the juvenile sporophytes. Based on the constructed cDNA libraries, the interactors of SjAUREO were screened and analyzed. There are eighty-four genes encoding the sixteen predicted proteins from the BL cDNA library, sixty-eight genes encoding eighteen predicted proteins from the DK cDNA library, and seventy-four genes encoding nineteen proteins from the WL cDNA library. All the predicted proteins are presumed to interact with SjAUREO when co-expressed with SjAUREO seperately. The 40S ribosomal protein S6 (RPS6), which only exists in the BL treated cDNA library except for two other libraries, and which is essential for cell proliferation and is involved in cell cycle progression, was selected for detailed analysis. We showed that its transcription was up-regulated by BL, and was highly transcribed in the basal blade (meristem region) of juvenile sporophytes but less in the distal part. Taken together, our results indicated that RPS6 was highly involved in BL-mediated kelp cellular division and photomorphogenesis by interacting with SjAUREO.


Genomics ◽  
2001 ◽  
Vol 76 (1-3) ◽  
pp. 58-65 ◽  
Author(s):  
Gabriel Kremmidiotis ◽  
Alison E. Gardner ◽  
Chatri Settasatian ◽  
Anna Savoia ◽  
Grant R. Sutherland ◽  
...  

Genomics ◽  
1994 ◽  
Vol 24 (3) ◽  
pp. 485-490 ◽  
Author(s):  
Masato Furuichi ◽  
Michihiro C. Yoshida ◽  
Hisanobu Oda ◽  
Tatsurou Tajiri ◽  
Yusaku Nakabeppu ◽  
...  

1999 ◽  
Vol 105 (1-2) ◽  
pp. 17-27 ◽  
Author(s):  
F. von Deimling ◽  
J.M. Scharf ◽  
T. Liehr ◽  
M. Rothe ◽  
A.-R. Kelter ◽  
...  

2003 ◽  
Vol 374 (1) ◽  
pp. 175-184 ◽  
Author(s):  
Daesung SHIN ◽  
Sangjin PARK ◽  
Chankyu PARK

The expression of glutamine synthetase (GS), catalysing the ATP-dependent conversion of glutamate and ammonia into glutamine, is transcriptionally and post-transcriptionally regulated. The genomic structure of dog GS shown in the present study is basically similar to that of other mammals in that it is composed of seven exons and six introns. Using 5′-cRACE (where cRACE stands for circular rapid amplification of cDNA ends) and reverse transcriptase–PCR, we identified an additional exon (120 bp) in the first intron, designated in the present study as exon 1′. By means of alternative splicing, the GS gene produces an altered form of GS transcript with 5′-untranslated region (UTR) containing the exon 1′. This alternative transcript is abundantly expressed in brain, whereas it is found at lower levels in other tissues. In the human and mouse GS genes, extra exons are also found at the corresponding site of the intron 1 but with different sizes. An exon-trapping experiment for the GS gene in COS-7, Madin–Darby canine kidney and SK-N-SH cells revealed that the pattern of alternative splicing is variable in different cell types. The propensity of forming a secondary structure is predicted to be considerably higher in the presence of extra 5′-UTR, suggesting the possibility of a translational effect. To test this, we performed a reporter assay for fusions with different 5′-UTRs, demonstrating that the long form with extra 5′-UTR was translated 20- and 10-fold less than the short one in SK-N-SH and Neuro-2A cells respectively. Similarly, translations of human and mouse transcripts with extra 5′-UTRs were less efficient, showing 6–8-fold reductions in SK-N-SH cells. Furthermore, when we mutated an ATG sequence contained in the exon 1′, the suppression of translation was partially relieved, suggesting that the negative regulation by an extra 5′-UTR is, to some extent, due to an abortive translation from the upstream ATG.


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