The lipocalin XLCpl1 expressed in the neural plate of Xenopus laevis embryos is a secreted retinaldehyde binding protein
The lipocalin XLCpl1 expressed in the neural plate of Xenopus laevis embryos is a secreted retinaldehyde binding protein
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非洲爪蟾胚胎神经板中表达的脂质运载蛋白 XLCpl1 是一种分泌性视黄醛结合蛋白
DOI:
10.1002/pro.5560050704
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发表时间:
1996
期刊:
影响因子:
8
通讯作者:
Hannes Flöckner
中科院分区:
文献类型:
--
作者:
G. Lepperdinger;B. Strobl;Anita Weber;C. Mollay;A. Jilek;J. Thalhamer;Hannes Flöckner
The cellular and structural properties and binding capabilities of a lipocalin expressed in the early neural plate of Xenopus laevis embryos and the adult choroid plexus have been investigated. It was found that this lipocalin, termed Xlcpll, binds retinal at a nanomolar concentration, retinoic acid in the micromolar range, but does not show binding to retinol. Furthermore, this protein also binds D/L thyroxine. The Xlcpl1 cDNA was expressed in cell culture using the vaccinia virus expression system. In AtT20 cells, Xlcpl1 was secreted via the constitutive secretory pathway. We therefore assume that cpl1 binds retinaldehyde during the transport through the compartments of the secretory pathway that are considered to be the storage compartments of retinoids. Therefore, cpll‐expressing cells will secrete the precursors of active retinoids such as retinoic acid isomers. These retinoids may enter the cytosol by diffusion or receptor‐controlled mechanisms, as has been shown for exogenously applied retinoids. Based on these data, it is suggested that cpl1 is an integral member of the retinoid signaling pathway and, therefore, it plays a key role in pattern formation in early embryonic development.
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影响因子:
4
作者:
LANGSTON, AW;GUDAS, LJ
通讯作者:
GUDAS, LJ
影响因子:
--
作者:
Porter,SB;Ong,DE;Chytil,F;Orgebin-Crist,MC
通讯作者:
Orgebin-Crist,MC
DOI:
--
发表时间:
1992
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Posch,KC;Burns,RD;Napoli,JL
通讯作者:
Napoli,JL
影响因子:
3.6
作者:
Pappas,RS;Newcomer,ME;Ong,DE
通讯作者:
Ong,DE
DOI:
10.1073/pnas.90.19.9223
发表时间:
1993
影响因子:
11.1
作者:
Newcomer,ME;Pappas,RS;Ong,DE
通讯作者:
Ong,DE