CYSL-1 interacts with the O2-sensing hydroxylase EGL-9 to promote H2S-modulated hypoxia-induced behavioral plasticity in C. elegans.
CYSL-1 interacts with the O2-sensing hydroxylase EGL-9 to promote H2S-modulated hypoxia-induced behavioral plasticity in C. elegans.
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DOI:
10.1016/j.neuron.2011.12.037
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发表时间:
2012-03-08
期刊:
影响因子:
16.2
通讯作者:
Horvitz HR
中科院分区:
文献类型:
--
作者:
Ma DK;Vozdek R;Bhatla N;Horvitz HR
The C. elegans HIF-1 proline hydroxylase EGL-9 functions as an O2-sensor in an evolutionarily conserved pathway for adaptation to hypoxia. H2S accumulates during hypoxia and promotes HIF-1 activity, but how H2S signals are perceived and transmitted to modulate HIF-1 and animal behavior is unknown. We report that the experience of hypoxia modifies a C. elegans locomotive behavioral response to O2 through the EGL-9 pathway. From genetic screens to identify novel regulators of EGL-9-mediated behavioral plasticity, we isolated mutations of the gene cysl-1, which encodes a C. elegans homolog of sulfhydrylases/cysteine synthases. Hypoxia-dependent behavioral modulation and H2S-induced HIF-1 activation require the direct physical interaction of CYSL-1 with the EGL-9 C-terminus. Sequestration of EGL-9 by CYSL-1 and inhibition of EGL-9-mediated hydroxylation by hypoxia together promote neuronal HIF-1 activation to modulate behavior. These findings demonstrate that CYSL-1 acts to transduce signals from H2S to EGL-9 to regulate O2-dependent behavioral plasticity in C. elegans.
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DOI:
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发表时间:
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影响因子:
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发表时间:
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影响因子:
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