Identification of novel chondroitin proteoglycans in Caenorhabditis elegans: embryonic cell division depends on CPG-1 and CPG-2.
Identification of novel chondroitin proteoglycans in Caenorhabditis elegans: embryonic cell division depends on CPG-1 and CPG-2.
复制标题
秀丽隐杆线虫中新型软骨素蛋白多糖的鉴定:胚胎细胞分裂依赖于 CPG-1 和 CPG-2。
DOI:
10.1083/jcb.200603003
复制
发表时间:
2006-06-19
期刊:
影响因子:
--
通讯作者:
Esko JD
中科院分区:
文献类型:
--
作者:
Olson SK;Bishop JR;Yates JR;Oegema K;Esko JD
Vertebrates produce multiple chondroitin sulfate proteoglycans that play important roles in development and tissue mechanics. In the nematode Caenorhabditis elegans, the chondroitin chains lack sulfate but nevertheless play essential roles in embryonic development and vulval morphogenesis. However, assignment of these functions to specific proteoglycans has been limited by the lack of identified core proteins. We used a combination of biochemical purification, Western blotting, and mass spectrometry to identify nine C. elegans chondroitin proteoglycan core proteins, none of which have homologues in vertebrates or other invertebrates such as Drosophila melanogaster or Hydra vulgaris. CPG-1/CEJ-1 and CPG-2 are expressed during embryonic development and bind chitin, suggesting a structural role in the egg. RNA interference (RNAi) depletion of individual CPGs had no effect on embryonic viability, but simultaneous depletion of CPG-1/CEJ-1 and CPG-2 resulted in multinucleated single-cell embryos. This embryonic lethality phenocopies RNAi depletion of the SQV-5 chondroitin synthase, suggesting that chondroitin chains on these two proteoglycans are required for cytokinesis.
登录
查看更多内容
DOI:
10.1073/pnas.172522199
发表时间:
2002-10-29
影响因子:
11.1
作者:
Hwang, HY;Horvitz, HR
通讯作者:
Horvitz, HR
影响因子:
4.8
作者:
Ghiselli, G;Iozzo, RV
通讯作者:
Iozzo, RV
影响因子:
12.3
作者:
通讯作者:
--
影响因子:
4.8
作者:
Izumikawa, T;Kitagawa, H;Sugahara, K
通讯作者:
Sugahara, K
影响因子:
3
作者:
Bellin, R;Capila, I;Bernfield, MR
通讯作者:
Bernfield, MR