Expression of a collagen gene in mesenchyme lineages of the Strongylocentrotus purpuratus embryo.

Expression of a collagen gene in mesenchyme lineages of the Strongylocentrotus purpuratus embryo.
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胶原蛋白基因在 Strongylocentrotus purpuratus 胚胎间充质谱系中的表达。

DOI:
10.1101/gad.2.2.239
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发表时间:
1988
影响因子:
10.5
通讯作者:
Simpson,RT
Simpson,RT
中科院分区:
生物学1区
文献类型:
--
作者:
Angerer,LM;Chambers,SA;Yang,Q;Venkatesan,M;Angerer,RC;Simpson,RT

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我们以前已经描述了海胆胶原蛋白基因的外显子的克隆,并表明其表达在胚胎发生过程中受到时间调控,在囊胚形成过程中开始。我们现在已经定位了由该基因编码的蛋白质及其在发育中的胚胎中的mRNA合成位点。合成肽的抗体与可被胶原酶消化的208,000 Mr蛋白质反应。分离的pluteus阶段胚胎表明,该蛋白主要是本地化的细胞,形成合胞体的初级间充质,阐述幼虫内骨骼;此外,免疫荧光定位的表位的外周内骨骼原位。该基因的转录物仅在间充质细胞中积累,特别是在初级间充质谱系的细胞中。绝对转录丰度的测量显示,胶原mRNA存在于囊胚原代间充质细胞中,每个细胞600-700个拷贝,在其他间充质细胞中的量低约四倍。
We have previously described cloning of an exon of a sea urchin collagen gene and shown that its expression is temporally regulated during embryogenesis, beginning during blastula formation. We have now localized the protein encoded by the gene and the sites of its mRNA synthesis in the developing embryo. Antibody to a synthetic peptide reacts with a 208,000 Mr protein that is digestible by collagenase. Fractionation of pluteus stage embryos demonstrates that the protein is localized primarily with cells that form the syncytium of primary mesenchyme that elaborates the larval endoskeleton; furthermore, immunofluorescence localizes the epitope to the periphery of the endoskeleton in situ. Transcripts of the gene accumulate only in mesenchyme cells, especially those of the primary mesenchyme lineage. Measurements of absolute transcript abundance show that collagen mRNA is present in blastula primary mesenchyme cells at 600-700 copies per cell and at about fourfold lower amounts in other mesenchyme cells.
海胆胚胎中的原肠胚形成需要交联胶原蛋白在细胞外基质内的沉积。
DOI: 10.1016/0012-1606(87)90148-5
发表时间: 1987
影响因子: 2.7
作者:
Wessel,GM;McClay,DR
通讯作者: McClay,DR
DOI: 10.1016/0012-1606(87)90254-5
发表时间: 1987
影响因子: 2.7
作者:
Sucov,HM;Benson,S;Robinson,JJ;Britten,RJ;Wilt,F;Davidson,EH
通讯作者: Davidson,EH
海胆微粒中的胶原代谢和针状体形成。
DOI: 10.1016/0014-4827(84)90233-7
发表时间: 1984
影响因子: 3.7
作者:
J. Blankenship;S. Benson
通讯作者: S. Benson
Strongylocentrotus purpuratus 胶原蛋白基因的结构和发育调控表达。
影响因子: 11.1
作者:
M. Venkatesan;F. de Pablo;G. Vogeli;R. Simpson
通讯作者: R. Simpson
海胆胚胎中胶原蛋白的合成和针状体的形成。
DOI: 10.1016/0045-6039(72)90025-5
发表时间: 1972
期刊: Cell differentiation
影响因子: --
作者:
I. Pucci‐Minafra;C. Casano;C. La Rosa
通讯作者: C. La Rosa