Identification of two novel 5' noncoding exons in human MNB/DYRK gene and alternatively spliced transcripts

Jun Wang, Jun Kudo, Ai Shintani, Shinsei Minoshima, Nobuyoshi Shimizu

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Previously, the comparison of human MNB/DYRK cDNA sequences with publicly available genomic DNA sequence made a conclusion that MNB/DYRK gene consists of 11 exons spanning 100 kb. Here we found a novel human MNB/DYRK cDNA clone that has the 5' end different from any of those reported MNB/DYRK cDNAs. The 5' end of this cDNA resides in a CpG island associated with the NotI linking clone LL390 that is located more than 50 kb upstream of the exon that contains an initiation codon ATG. Northern blot analysis indicated that almost all the MNB/DYRK transcripts start from the newly identified 5'-noncoding exon. PCR amplification of cDNAs from various human tissues indicated that some mRNAs contain an additional noncoding exon of 76 bp next to the 5'-end exon and there are at least three types of MNB/DYRK mRNAs containing alternatively spliced 5' exons including two novel exons. We now conclude that human MNB/DYRK gene consists of 13 exons (not 11 exons) spanning about 150 kb (not 100 kb).

Original languageEnglish
Pages (from-to)704-710
Number of pages7
JournalBiochemical and Biophysical Research Communications
Volume250
Issue number3
DOIs
Publication statusPublished - 1998 Sep 29

Fingerprint

Recombinant DNA
Exons
Genes
Complementary DNA
Clone Cells
Messenger RNA
CpG Islands
Initiator Codon
DNA sequences
Northern Blotting
Amplification
Tissue
Polymerase Chain Reaction

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Molecular Biology

Cite this

Identification of two novel 5' noncoding exons in human MNB/DYRK gene and alternatively spliced transcripts. / Wang, Jun; Kudo, Jun; Shintani, Ai; Minoshima, Shinsei; Shimizu, Nobuyoshi.

In: Biochemical and Biophysical Research Communications, Vol. 250, No. 3, 29.09.1998, p. 704-710.

Research output: Contribution to journalArticle

Wang, Jun ; Kudo, Jun ; Shintani, Ai ; Minoshima, Shinsei ; Shimizu, Nobuyoshi. / Identification of two novel 5' noncoding exons in human MNB/DYRK gene and alternatively spliced transcripts. In: Biochemical and Biophysical Research Communications. 1998 ; Vol. 250, No. 3. pp. 704-710.
@article{b6a91db0ab874f17bbbece124437f435,
title = "Identification of two novel 5' noncoding exons in human MNB/DYRK gene and alternatively spliced transcripts",
abstract = "Previously, the comparison of human MNB/DYRK cDNA sequences with publicly available genomic DNA sequence made a conclusion that MNB/DYRK gene consists of 11 exons spanning 100 kb. Here we found a novel human MNB/DYRK cDNA clone that has the 5' end different from any of those reported MNB/DYRK cDNAs. The 5' end of this cDNA resides in a CpG island associated with the NotI linking clone LL390 that is located more than 50 kb upstream of the exon that contains an initiation codon ATG. Northern blot analysis indicated that almost all the MNB/DYRK transcripts start from the newly identified 5'-noncoding exon. PCR amplification of cDNAs from various human tissues indicated that some mRNAs contain an additional noncoding exon of 76 bp next to the 5'-end exon and there are at least three types of MNB/DYRK mRNAs containing alternatively spliced 5' exons including two novel exons. We now conclude that human MNB/DYRK gene consists of 13 exons (not 11 exons) spanning about 150 kb (not 100 kb).",
author = "Jun Wang and Jun Kudo and Ai Shintani and Shinsei Minoshima and Nobuyoshi Shimizu",
year = "1998",
month = "9",
day = "29",
doi = "10.1006/bbrc.1998.9392",
language = "English",
volume = "250",
pages = "704--710",
journal = "Biochemical and Biophysical Research Communications",
issn = "0006-291X",
publisher = "Academic Press Inc.",
number = "3",

}

TY - JOUR

T1 - Identification of two novel 5' noncoding exons in human MNB/DYRK gene and alternatively spliced transcripts

AU - Wang, Jun

AU - Kudo, Jun

AU - Shintani, Ai

AU - Minoshima, Shinsei

AU - Shimizu, Nobuyoshi

PY - 1998/9/29

Y1 - 1998/9/29

N2 - Previously, the comparison of human MNB/DYRK cDNA sequences with publicly available genomic DNA sequence made a conclusion that MNB/DYRK gene consists of 11 exons spanning 100 kb. Here we found a novel human MNB/DYRK cDNA clone that has the 5' end different from any of those reported MNB/DYRK cDNAs. The 5' end of this cDNA resides in a CpG island associated with the NotI linking clone LL390 that is located more than 50 kb upstream of the exon that contains an initiation codon ATG. Northern blot analysis indicated that almost all the MNB/DYRK transcripts start from the newly identified 5'-noncoding exon. PCR amplification of cDNAs from various human tissues indicated that some mRNAs contain an additional noncoding exon of 76 bp next to the 5'-end exon and there are at least three types of MNB/DYRK mRNAs containing alternatively spliced 5' exons including two novel exons. We now conclude that human MNB/DYRK gene consists of 13 exons (not 11 exons) spanning about 150 kb (not 100 kb).

AB - Previously, the comparison of human MNB/DYRK cDNA sequences with publicly available genomic DNA sequence made a conclusion that MNB/DYRK gene consists of 11 exons spanning 100 kb. Here we found a novel human MNB/DYRK cDNA clone that has the 5' end different from any of those reported MNB/DYRK cDNAs. The 5' end of this cDNA resides in a CpG island associated with the NotI linking clone LL390 that is located more than 50 kb upstream of the exon that contains an initiation codon ATG. Northern blot analysis indicated that almost all the MNB/DYRK transcripts start from the newly identified 5'-noncoding exon. PCR amplification of cDNAs from various human tissues indicated that some mRNAs contain an additional noncoding exon of 76 bp next to the 5'-end exon and there are at least three types of MNB/DYRK mRNAs containing alternatively spliced 5' exons including two novel exons. We now conclude that human MNB/DYRK gene consists of 13 exons (not 11 exons) spanning about 150 kb (not 100 kb).

UR - http://www.scopus.com/inward/record.url?scp=0032578584&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032578584&partnerID=8YFLogxK

U2 - 10.1006/bbrc.1998.9392

DO - 10.1006/bbrc.1998.9392

M3 - Article

VL - 250

SP - 704

EP - 710

JO - Biochemical and Biophysical Research Communications

JF - Biochemical and Biophysical Research Communications

SN - 0006-291X

IS - 3

ER -