A long natural-antisense RNA is accumulated in the conidia of Aspergillus oryzae. 2016

Masaru Tsujii, and Satoshi Okuda, and Kazutomo Ishi, and Kana Madokoro, and Michio Takeuchi, and Youhei Yamagata
a Department of Applied Life Science , United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology , Fuchu , Japan.

Analysis of expressed sequence tag libraries from various culture conditions revealed the existence of conidia-specific transcripts assembled to putative conidiation-specific reductase gene (csrA) in Aspergillus oryzae. However, the all transcripts were transcribed with opposite direction to the gene csrA. The sequence analysis of the transcript revealed that the RNA overlapped mRNA of csrA with 3'-end, and did not code protein longer than 60 amino acid residues. We designated the transcript Conidia Specific Long Natural-antisense RNA (CSLNR). The real-time PCR analysis demonstrated that the CSLNR is conidia-specific transcript, which cannot be transcribed in the absence of brlA, and the amount of CSLNR was much more than that of the transcript from csrA in conidia. Furthermore, the csrA deletion, also lacking coding region of CSLNR in A. oryzae reduced the number of conidia. Overexpression of CsrA demonstrated the inhibition of growth and conidiation, while CSLNR did not affect conidiation.

UI MeSH Term Description Entries
D007438 Introns Sequences of DNA in the genes that are located between the EXONS. They are transcribed along with the exons but are removed from the primary gene transcript by RNA SPLICING to leave mature RNA. Some introns code for separate genes. Intervening Sequences,Sequences, Intervening,Intervening Sequence,Intron,Sequence, Intervening
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D005091 Exons The parts of a transcript of a split GENE remaining after the INTRONS are removed. They are spliced together to become a MESSENGER RNA or other functional RNA. Mini-Exon,Exon,Mini Exon,Mini-Exons
D005656 Fungal Proteins Proteins found in any species of fungus. Fungal Gene Products,Fungal Gene Proteins,Fungal Peptides,Gene Products, Fungal,Yeast Proteins,Gene Proteins, Fungal,Peptides, Fungal,Proteins, Fungal
D001236 Aspergillus oryzae An imperfect fungus present on most agricultural seeds and often responsible for the spoilage of seeds in bulk storage. It is also used in the production of fermented food or drink, especially in Japan. Eurotium oryzae
D001483 Base Sequence The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence. DNA Sequence,Nucleotide Sequence,RNA Sequence,DNA Sequences,Base Sequences,Nucleotide Sequences,RNA Sequences,Sequence, Base,Sequence, DNA,Sequence, Nucleotide,Sequence, RNA,Sequences, Base,Sequences, DNA,Sequences, Nucleotide,Sequences, RNA
D012333 RNA, Messenger RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm. Messenger RNA,Messenger RNA, Polyadenylated,Poly(A) Tail,Poly(A)+ RNA,Poly(A)+ mRNA,RNA, Messenger, Polyadenylated,RNA, Polyadenylated,mRNA,mRNA, Non-Polyadenylated,mRNA, Polyadenylated,Non-Polyadenylated mRNA,Poly(A) RNA,Polyadenylated mRNA,Non Polyadenylated mRNA,Polyadenylated Messenger RNA,Polyadenylated RNA,RNA, Polyadenylated Messenger,mRNA, Non Polyadenylated
D013172 Spores, Fungal Reproductive bodies produced by fungi. Conidia,Fungal Spores,Conidium,Fungal Spore,Spore, Fungal
D014157 Transcription Factors Endogenous substances, usually proteins, which are effective in the initiation, stimulation, or termination of the genetic transcription process. Transcription Factor,Factor, Transcription,Factors, Transcription
D014158 Transcription, Genetic The biosynthesis of RNA carried out on a template of DNA. The biosynthesis of DNA from an RNA template is called REVERSE TRANSCRIPTION. Genetic Transcription

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