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一种可能在团藻中组织细胞外基质生物合成的新型伸展蛋白。

A novel extensin that may organize extracellular matrix biogenesis in Volvox carteri.

作者信息

Ertl H, Hallmann A, Wenzl S, Sumper M

机构信息

Lehrstuhl Biochemie I, Universität Regensburg, FRG.

出版信息

EMBO J. 1992 Jun;11(6):2055-62. doi: 10.1002/j.1460-2075.1992.tb05263.x.

DOI:10.1002/j.1460-2075.1992.tb05263.x
PMID:1600938
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC556671/
Abstract

ISG is a sulphated, extracellular glycoprotein synthesized for only a few minutes in inverting Volvox embryos and inverting sperm cell packets. This control operates at the level of transcription. ISG has been characterized by studies of protein chemistry and electron microscopy. The primary structure of ISG has been derived from genomic DNA and cDNA. ISG is composed of a globular and a rod-shaped domain. The rod-shaped domain represents a member of the extensin family with numerous repeats of Ser-(Hyp)4-6 motifs. A synthetic decapeptide matching the C-terminal sequence is able to disaggregate the organism into individual cells. Immunofluorescence microscopy localizes ISG within the boundary zone of the ECM.

摘要

ISG是一种硫酸化的细胞外糖蛋白，在倒置的团藻胚胎和倒置的精子细胞包囊中仅合成几分钟。这种调控作用发生在转录水平。通过蛋白质化学和电子显微镜研究对ISG进行了表征。ISG的一级结构来自基因组DNA和cDNA。ISG由一个球状结构域和一个杆状结构域组成。杆状结构域代表伸展蛋白家族的一个成员，具有多个Ser-(Hyp)4-6基序的重复序列。一个与C端序列匹配的合成十肽能够将生物体分解成单个细胞。免疫荧光显微镜检查将ISG定位在细胞外基质的边界区域内。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8223/556671/9b88f2cbcce3/emboj00091-0070-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8223/556671/c5ad4fdf80b9/emboj00091-0065-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8223/556671/a665e3aba50a/emboj00091-0065-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8223/556671/5dffd6286bf4/emboj00091-0068-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8223/556671/e240306424d7/emboj00091-0068-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8223/556671/f09ef3ad9fef/emboj00091-0069-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8223/556671/9b88f2cbcce3/emboj00091-0070-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8223/556671/c5ad4fdf80b9/emboj00091-0065-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8223/556671/a665e3aba50a/emboj00091-0065-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8223/556671/5dffd6286bf4/emboj00091-0068-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8223/556671/e240306424d7/emboj00091-0068-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8223/556671/f09ef3ad9fef/emboj00091-0069-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8223/556671/9b88f2cbcce3/emboj00091-0070-a.jpg

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