Proteoglycan quality control mechanisms by the tumor suppressor gene EXTL2
Proteoglycan quality control mechanisms by the tumor suppressor gene EXTL2
批准号:
22659019
负责人:
KITAGAWA Hiroshi
金额:
$1.98万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Challenging Exploratory Research
财政年份:
2010
资助国家:
日本
项目状态:
已结题
起止时间:
2010 至 2011
中文摘要
硫酸乙酰肝素(HS)是由EXT1和EXT2基因编码的HS共聚酶合成的,EXT1和EXT2基因是遗传性多发性骨软骨瘤的致病基因,是一种以多发性软骨肿瘤为特征的显性遗传性遗传性疾病。已在哺乳动物中鉴定出三个与EXT1和EXT2有显著序列同源性的类EXT(EXTL)基因。然而,它们在HS生物合成中的作用仍不清楚。在这里,我们证明了EXTL2将第一个GlcNAc残基转移到连接区是EXT1缺陷细胞合成HS所必需的,并且可能参与了蛋白多糖的质量控制机制。
英文摘要
Heparan sulfate(HS) is synthesized by HS co-polymerases encoded by the EXT1and EXT2genes, which are known as causative genes for hereditary multiple exostoses, a dominantly inherited genetic disorder characterized by multiple cartilaginous tumors. Three EXT-like(EXTL) genes that share significant sequence homologies with EXT1and EXT2have been identified in mammals. However, their roles in HS biosynthesis remain unclear. Here, we showed that the transfer of the first GlcNAc residue to the linkage region by EXTL2is critically required for the biosynthesis of HS in cells deficient in EXT1and is likely involved in the quality control mechanism of proteoglycans.
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コンドロイチンN-アセチルガラクトサミン転移酵素-1によるコンドロイチン硫酸鎖の本数の制御機構
软骨素N-乙酰半乳糖胺转移酶1对硫酸软骨素链数的控制机制
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
[泉川友美, 北川裕之, 他]
通讯作者:
他
DOI:
10.1042/bj20100101
发表时间:
2010-06-15
期刊:
BIOCHEMICAL JOURNAL
影响因子:
4.1
作者:
[Okada, Megumi, Nadanaka, Satomi, Kitagawa, Hiroshi]
通讯作者:
Kitagawa, Hiroshi
Enzyme assay of GAG glycosyltransferases for heparan sulfate.
硫酸乙酰肝素 GAG 糖基转移酶的酶测定。
DOI:
--
发表时间:
期刊:
影响因子:
--
作者:
[Nadanaka, S., Kitagawa, H.]
通讯作者:
H.
骨格筋再生促進剤
骨骼肌再生促进剂
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
[]
通讯作者:
キシロースリン酸化酵素によるグリコサミノグリカン生合成の制御
木糖磷酸酶对糖胺聚糖生物合成的调节
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
[小池敏靖, 他]
通讯作者:
他
共 11 条
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