Gastrulation in the sea urchin is accompanied by the accumulation of an endoderm-specific mRNA.
Gastrulation in the sea urchin is accompanied by the accumulation of an endoderm-specific mRNA.
复制标题
海胆的原肠胚形成伴随着内胚层特异性 mRNA 的积累。
DOI:
10.1016/0012-1606(89)90278-9
复制
发表时间:
1989
影响因子:
2.7
通讯作者:
Klein,WH
中科院分区:
文献类型:
--
作者:
Wessel,GM;Goldberg,L;Lennarz,WJ;Klein,WH
Spatial diversification of the endoderm during gastrulation in the sea urchinLytechinus variegatuswas examined with an endoderm-specific cDNA clone. This cDNA clone, LvN1.2, was identified by a differential cDNA screen between the ectoderm and endoderm/mesoderm fractions from prism stage embryos. The LvN 1.2-kb mRNA was first detectable by Northern blots at the mesenchyme blastula stage just prior to gastrulation and then accumulated approximately 15-fold from gastrulation to the pluteus stage.In situhybridization analysis demonstrated that the mRNA accumulated specifically in endoderm and was restricted to the hindgut-midgut regions. This restricted localization was apparent during gastrulation and predicted the morphological distinction between foregut and midgut eventually seen at prism and pluteus stages. Sequence analysis showed that the 189-amino acid open reading frame represented a novel protein.In vitrotranslation of synthetically produced LvN1.2 mRNA and Western blot analysis with antibodies to the protein sequence yielded the same 25-kDa polypeptide on SDS-PAGE. The LvN1.2 protein resided within discrete granules of the hindgut and midgut cells. These particles were concentrated to the luminal aspect of the cells, suggesting the LvN1.2 protein participates in the digestive function of this region of the gut.
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DOI:
10.1073/pnas.84.14.4767
发表时间:
1987-07-01
影响因子:
11.1
作者:
TABOR, S;RICHARDSON, CC
通讯作者:
RICHARDSON, CC
DOI:
--
发表时间:
1986
期刊:
影响因子:
--
作者:
P. Bédard;B. Brandhorst
通讯作者:
B. Brandhorst
影响因子:
2.7
作者:
Wells,DE;Bruskin,AM;O'Brochta,DA;Raff,RA
通讯作者:
Raff,RA
影响因子:
--
作者:
Angerer,LM;Cox,KH;Angerer,RC
通讯作者:
Angerer,RC
DOI:
10.1089/dna.1988.7.637
发表时间:
1988
期刊:
DNA (Mary Ann Liebert, Inc.)
影响因子:
--
作者:
Dolecki,GJ;Lum,R;Humphreys,T
通讯作者:
Humphreys,T