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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1977-10-20
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pubmed:abstractText |
The biosynthesis of thyroglobulin (Tg) in larva of a fresh-water lamprey, Lampetra planeri B1. has been established. This glycoprotein presents the same characters as in thyroid follicles of adult lampreys, as shown by its 18-19 S sedimentation coefficient and by the incorporation (in vivo and in vitro experiments of 4, 12, 72 h) of 125I, 3H-leucine and 3H-galactose. 3-8 S fractions and a 12 S monomer are the precursors of the 18-19 S protein. Total I % of Tg is very low (0.002 %) ; about 5 % of 125I are present in thyroid hormones (T3 and T4) in the 125I-labeled protein. The biosynthesis of 18-19 S Tg proceeds in larvs before the morphological differentiation of thyroid cells and follicles after metamorphosis. However, the biosynthesis of this protein is much slower in the endostyle of larvs, in which a primitive mechanism of storage is poorly efficient, compared to the accumulation of Tg in the colloid of the follicles of adults.
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pubmed:language |
fre
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0037-9026
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
171
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
308-13
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:142547-Animals,
pubmed-meshheading:142547-Fishes,
pubmed-meshheading:142547-Galactose,
pubmed-meshheading:142547-Glycoproteins,
pubmed-meshheading:142547-Lampreys,
pubmed-meshheading:142547-Larva,
pubmed-meshheading:142547-Leucine,
pubmed-meshheading:142547-Thyroglobulin,
pubmed-meshheading:142547-Thyroid Gland
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pubmed:year |
1977
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pubmed:articleTitle |
[Biosynthesis of thyroglobulin in the endostyle of larva (ammocoetes) of a fresh water lamprey, Lampetra planeri B1].
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pubmed:publicationType |
Journal Article,
English Abstract
|