Molecular cloning and expression of Xenopus p300/CBP

Gen Fujii, Remi Tsuchiya, Yuzuru Itoh, Kosuke Tashiro, Setsuo Hirohashi

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Transcriptional coactivators act as signal committers from transcriptional regulators to basal transcriptional machineries. We isolated the cDNA for p300/CBP, one of the most important transcriptional coactivators, of Xenopus. We also report its regulated expression, and the effects of microinjection of its truncated form. Xenopus p300/CBP (Xp300) encodes a 2483 amino acid protein which is highly homologous with human p300. Northern hybridization analyses indicated that Xp300 mRNA is stored in the oocyte, and is present throughout early embryogenesis of this species. In situ hybridization studies have revealed that Xp300 mRNA localization is ubiquitous throughout early embryogenesis, but that in later stages it is predominant in the neural region. Among adult tissues, Xp300 mRNA was clearly detected in some tissues, suggesting that Xp300 functions as a transcriptional regulator in various tissues. Microinjection of a carboxy- terminal-truncated form of Xp300 RNA into both cells of Xenopus two- blastomere stage embryos invoked the malformation of the embryos. The neural plates of Xp300 RNA-injected embryos were loose and the trunk area was heavily contracted. These results suggest that Xp300 is indispensable for normal development of the early embryo, especially in neural formation.

Original languageEnglish
Pages (from-to)41-54
Number of pages14
JournalBiochimica et Biophysica Acta - Gene Structure and Expression
Volume1443
Issue number1-2
DOIs
Publication statusPublished - Nov 26 1998

Fingerprint

Cloning
Molecular Cloning
Xenopus
Tissue
Messenger RNA
RNA
Embryonic Development
Complementary DNA
Embryonic Structures
Microinjections
Amino Acids
Stored Messenger RNA
Proteins
Neural Plate
Blastomeres
Oocytes
In Situ Hybridization

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Genetics
  • Structural Biology
  • Biophysics

Cite this

Molecular cloning and expression of Xenopus p300/CBP. / Fujii, Gen; Tsuchiya, Remi; Itoh, Yuzuru; Tashiro, Kosuke; Hirohashi, Setsuo.

In: Biochimica et Biophysica Acta - Gene Structure and Expression, Vol. 1443, No. 1-2, 26.11.1998, p. 41-54.

Research output: Contribution to journalArticle

Fujii, Gen ; Tsuchiya, Remi ; Itoh, Yuzuru ; Tashiro, Kosuke ; Hirohashi, Setsuo. / Molecular cloning and expression of Xenopus p300/CBP. In: Biochimica et Biophysica Acta - Gene Structure and Expression. 1998 ; Vol. 1443, No. 1-2. pp. 41-54.
@article{c904652f278d4013b0331a9fc8949cf5,
title = "Molecular cloning and expression of Xenopus p300/CBP",
abstract = "Transcriptional coactivators act as signal committers from transcriptional regulators to basal transcriptional machineries. We isolated the cDNA for p300/CBP, one of the most important transcriptional coactivators, of Xenopus. We also report its regulated expression, and the effects of microinjection of its truncated form. Xenopus p300/CBP (Xp300) encodes a 2483 amino acid protein which is highly homologous with human p300. Northern hybridization analyses indicated that Xp300 mRNA is stored in the oocyte, and is present throughout early embryogenesis of this species. In situ hybridization studies have revealed that Xp300 mRNA localization is ubiquitous throughout early embryogenesis, but that in later stages it is predominant in the neural region. Among adult tissues, Xp300 mRNA was clearly detected in some tissues, suggesting that Xp300 functions as a transcriptional regulator in various tissues. Microinjection of a carboxy- terminal-truncated form of Xp300 RNA into both cells of Xenopus two- blastomere stage embryos invoked the malformation of the embryos. The neural plates of Xp300 RNA-injected embryos were loose and the trunk area was heavily contracted. These results suggest that Xp300 is indispensable for normal development of the early embryo, especially in neural formation.",
author = "Gen Fujii and Remi Tsuchiya and Yuzuru Itoh and Kosuke Tashiro and Setsuo Hirohashi",
year = "1998",
month = "11",
day = "26",
doi = "10.1016/S0167-4781(98)00179-1",
language = "English",
volume = "1443",
pages = "41--54",
journal = "Biochimica et Biophysica Acta - Gene Structure and Expression",
issn = "0167-4781",
publisher = "Elsevier BV",
number = "1-2",

}

TY - JOUR

T1 - Molecular cloning and expression of Xenopus p300/CBP

AU - Fujii, Gen

AU - Tsuchiya, Remi

AU - Itoh, Yuzuru

AU - Tashiro, Kosuke

AU - Hirohashi, Setsuo

PY - 1998/11/26

Y1 - 1998/11/26

N2 - Transcriptional coactivators act as signal committers from transcriptional regulators to basal transcriptional machineries. We isolated the cDNA for p300/CBP, one of the most important transcriptional coactivators, of Xenopus. We also report its regulated expression, and the effects of microinjection of its truncated form. Xenopus p300/CBP (Xp300) encodes a 2483 amino acid protein which is highly homologous with human p300. Northern hybridization analyses indicated that Xp300 mRNA is stored in the oocyte, and is present throughout early embryogenesis of this species. In situ hybridization studies have revealed that Xp300 mRNA localization is ubiquitous throughout early embryogenesis, but that in later stages it is predominant in the neural region. Among adult tissues, Xp300 mRNA was clearly detected in some tissues, suggesting that Xp300 functions as a transcriptional regulator in various tissues. Microinjection of a carboxy- terminal-truncated form of Xp300 RNA into both cells of Xenopus two- blastomere stage embryos invoked the malformation of the embryos. The neural plates of Xp300 RNA-injected embryos were loose and the trunk area was heavily contracted. These results suggest that Xp300 is indispensable for normal development of the early embryo, especially in neural formation.

AB - Transcriptional coactivators act as signal committers from transcriptional regulators to basal transcriptional machineries. We isolated the cDNA for p300/CBP, one of the most important transcriptional coactivators, of Xenopus. We also report its regulated expression, and the effects of microinjection of its truncated form. Xenopus p300/CBP (Xp300) encodes a 2483 amino acid protein which is highly homologous with human p300. Northern hybridization analyses indicated that Xp300 mRNA is stored in the oocyte, and is present throughout early embryogenesis of this species. In situ hybridization studies have revealed that Xp300 mRNA localization is ubiquitous throughout early embryogenesis, but that in later stages it is predominant in the neural region. Among adult tissues, Xp300 mRNA was clearly detected in some tissues, suggesting that Xp300 functions as a transcriptional regulator in various tissues. Microinjection of a carboxy- terminal-truncated form of Xp300 RNA into both cells of Xenopus two- blastomere stage embryos invoked the malformation of the embryos. The neural plates of Xp300 RNA-injected embryos were loose and the trunk area was heavily contracted. These results suggest that Xp300 is indispensable for normal development of the early embryo, especially in neural formation.

UR - http://www.scopus.com/inward/record.url?scp=0032570041&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032570041&partnerID=8YFLogxK

U2 - 10.1016/S0167-4781(98)00179-1

DO - 10.1016/S0167-4781(98)00179-1

M3 - Article

VL - 1443

SP - 41

EP - 54

JO - Biochimica et Biophysica Acta - Gene Structure and Expression

JF - Biochimica et Biophysica Acta - Gene Structure and Expression

SN - 0167-4781

IS - 1-2

ER -