Neuronal and Non-Neuronal Collapsin-1 Binding Sites in Developing Chick Are Distinct from Other Semaphorin Binding Sites
Neuronal and Non-Neuronal Collapsin-1 Binding Sites in Developing Chick Are Distinct from Other Semaphorin Binding Sites
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发育中雏鸡的神经元和非神经元 Collapsin-1 结合位点与其他信号蛋白结合位点不同
DOI:
--
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发表时间:
1997
影响因子:
5.3
通讯作者:
S. Strittmatter
中科院分区:
文献类型:
--
作者:
Takuya Takahashi;F. Nakamura;S. Strittmatter
The collapsin and semaphorin family of extracellular proteins contributes to axonal path finding by repulsing axons and collapsing growth cones. To explore the mechanism of collapsin-1 action, we expressed and purified a truncated collapsin-1–alkaline phosphatase fusion protein (CAP-4). This protein retains biological activity as a DRG growth cone collapsing agent and saturably binds to DRG neurons with low nanomolar affinity. Specific CAP-4 binding sites are present on DRG neurons, sympathetic neurons, and motoneurons, but not on retinal, cortical, or brainstem neurons. Outside the nervous system, high levels of CAP-4 binding sites are present in the mesenchyme surrounding major blood vessels and developing bone and in lung. These sites provide a substrate for the collapsin-1-dependent patterning of non-neuronal tissues perturbed in sema III (−/−) mice. The staining patterns for mouse semaphorin D/III and chick collapsin-1 fusion proteins are indistinguishable from one another but quite separate from that for semaphorin B and M-semaphorin F fusion proteins. These data imply that a family of high-affinity semaphorin binding sites similar in complexity to the semaphorin ligand family exists.
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DOI:
10.1073/pnas.93.9.4120
发表时间:
1996-04-30
影响因子:
11.1
作者:
Sekido, Y;Bader, S;Minna, JD
通讯作者:
Minna, JD
影响因子:
4.4
作者:
Xiang, RH;Hensel, CH;Naylor, SL
通讯作者:
Naylor, SL
影响因子:
8
作者:
J. Roche;F. Boldog;Misi Robinson;Linda Robinson;Marileila Varella-Garcia;M. Swanton;B. Waggoner;R. Fishel;Wilbur A. Franklin;R. Gemmill;H. Drabkin
通讯作者:
J. Roche;F. Boldog;Misi Robinson;Linda Robinson;Marileila Varella-Garcia;M. Swanton;B. Waggoner;R. Fishel;Wilbur A. Franklin;R. Gemmill;H. Drabkin
DOI:
10.1073/pnas.93.21.11780
发表时间:
1996-10-15
影响因子:
11.1
作者:
Hall, KT;Boumsell, L;Freeman, GJ
通讯作者:
Freeman, GJ
DOI:
10.1242/dev.124.7.1377
发表时间:
1997
期刊:
Development (Cambridge, England)
影响因子:
--
作者:
Shepherd,IT;Luo,Y;Lefcort,F;Reichardt,LF;Raper,JA
通讯作者:
Raper,JA