Selective export of autotaxin from the endoplasmic reticulum
Selective export of autotaxin from the endoplasmic reticulum
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自内质网选择性输出自分泌运动因子
DOI:
10.1074/jbc.m116.774356
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发表时间:
2017-03
影响因子:
4.8
通讯作者:
Junjie Zhang
中科院分区:
文献类型:
--
作者:
Lin Lyu;Baolu Wang;Chaoyang Xiong;Xiaotian Zhang;Xiaoyan Zhang;Junjie Zhang
Autotaxin (ATX) or ectonucleotide pyrophosphatase/phosphodiesterase 2 (ENPP2) is a secretory glycoprotein and functions as the key enzyme for lysophosphatidic acid generation. The mechanism of ATX protein trafficking is largely unknown. Here, we demonstrated that p23, a member of the p24 protein family, was the protein-sorting receptor required for endoplasmic reticulum (ER) export of ATX. A di-phenylalanine (Phe-838/Phe-839) motif in the human ATX C-terminal region was identified as a transport signal essential for the ATX-p23 interaction. Knockdown of individual Sec24 isoforms by siRNA revealed that ER export of ATX was impaired only if Sec24C was down-regulated. These results suggest that ATX is selectively exported from the ER through a p23, Sec24C-dependent pathway. In addition, it was found that AKT signaling played a role in ATX secretion regulation to facilitate ATX ER export by enhancing the nuclear factor of activated T cell-mediated p23 expression. Furthermore, the di-hydrophobic amino acid motifs (FY) also existed in the C-terminal regions of human ENPP1 and ENPP3. Such a p23, Sec24C-dependent selective ER export mechanism is conserved among these ENPP family members.
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DOI:
10.1016/j.bbalip.2012.08.015
发表时间:
2013-01
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Brindley DN;Lin FT;Tigyi GJ
通讯作者:
Tigyi GJ
影响因子:
--
作者:
Wu, Guangyu
通讯作者:
Wu, Guangyu
DOI:
10.1016/j.bbalip.2008.04.009
发表时间:
2008-09
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Larra M. Yuelling;B. Fuss
通讯作者:
Larra M. Yuelling;B. Fuss
DOI:
10.4049/jimmunol.1302831
发表时间:
2014-02-01
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Knowlden S;Georas SN
通讯作者:
Georas SN
DOI:
10.1158/1078-0432.ccr-12-1141
发表时间:
2012-10-15
期刊:
Clinical cancer research : an official journal of the American Association for Cancer Research
影响因子:
--
作者:
Sangai T;Akcakanat A;Chen H;Tarco E;Wu Y;Do KA;Miller TW;Arteaga CL;Mills GB;Gonzalez-Angulo AM;Meric-Bernstam F
通讯作者:
Meric-Bernstam F