- EMDB-4304: Cryo-EM subtomogram average of IFT complex A in anterograde IFT t... -
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基本情報
登録情報
データベース: EMDB / ID: EMD-4304
タイトル
Cryo-EM subtomogram average of IFT complex A in anterograde IFT trains (Chlamydomonas reinhardtii)
マップデータ
Cryo-EM subtomogram average of IFT complex A in anterograde IFT trains (Chlamydomonas reinhartdii)
試料
複合体: Intraflagellar transport complex A
機能・相同性
機能・相同性情報
smoothened signaling pathway involved in dorsal/ventral neural tube patterning / myotome development / regulation of intraciliary retrograde transport / forebrain dorsal/ventral pattern formation / ear morphogenesis / digestive system development / protein localization to non-motile cilium / negative regulation of eating behavior / intraciliary anterograde transport / cone photoreceptor outer segment ...smoothened signaling pathway involved in dorsal/ventral neural tube patterning / myotome development / regulation of intraciliary retrograde transport / forebrain dorsal/ventral pattern formation / ear morphogenesis / digestive system development / protein localization to non-motile cilium / negative regulation of eating behavior / intraciliary anterograde transport / cone photoreceptor outer segment / intraciliary transport particle A / embryonic heart tube left/right pattern formation / photoreceptor cell outer segment organization / neural tube patterning / embryonic body morphogenesis / protein localization to ciliary membrane / establishment of protein localization to organelle / intraciliary retrograde transport / embryonic camera-type eye development / cerebellar Purkinje cell differentiation / gonad development / intraciliary transport / spinal cord dorsal/ventral patterning / regulation of cilium assembly / photoreceptor connecting cilium / ciliary tip / ventricular system development / camera-type eye morphogenesis / Intraflagellar transport / embryonic brain development / embryonic cranial skeleton morphogenesis / protein localization to cilium / non-motile cilium assembly / regulation of smoothened signaling pathway / embryonic heart tube development / embryonic forelimb morphogenesis / non-motile cilium / determination of left/right symmetry / nervous system process / embryonic limb morphogenesis / limb development / motile cilium / embryonic digit morphogenesis / smoothened signaling pathway / receptor clustering / Bergmann glial cell differentiation / axoneme / cilium assembly / photoreceptor outer segment / intercellular bridge / Hedgehog 'off' state / centriole / cellular response to leukemia inhibitory factor / negative regulation of smoothened signaling pathway / neural tube closure / centriolar satellite / cell morphogenesis / mitotic spindle / positive regulation of canonical Wnt signaling pathway / heart development / microtubule cytoskeleton / protein-containing complex assembly / nuclear membrane / in utero embryonic development / cytoskeleton / intracellular signal transduction / ciliary basal body / cilium / centrosome / chromatin binding / positive regulation of gene expression / regulation of transcription by RNA polymerase II / mitochondrion / nucleoplasm / membrane / plasma membrane / cytosol / cytoplasm 類似検索 - 分子機能
IFT144, first zinc finger domain / Intraflagellar transport protein 43 / Intraflagellar transport protein 43 / IFT122, C-terminal zinc ribbon domain / : / IFT122, zinc ribbon domain / Tetratricopeptide repeat protein 21A/21B / : / : / : ...IFT144, first zinc finger domain / Intraflagellar transport protein 43 / Intraflagellar transport protein 43 / IFT122, C-terminal zinc ribbon domain / : / IFT122, zinc ribbon domain / Tetratricopeptide repeat protein 21A/21B / : / : / : / : / : / Tetratricopeptide repeat protein 21 ARM repeat / Tetratricopeptide repeat protein 21 second ARM domain / Tetratricopeptide repeat protein 21 N-terminal ARM repeat / Tetratricopeptide repeat protein 21 C-terminal ARM domain / TT21 fifth ARM repeats domain / Tetratricopeptide repeat protein 21 forth ARM domain / WD repeat protein 35 / WDR19, WD40 repeat / WD repeat-containing protein 19/dyf-2 / : / : / : / : / : / WDR19 second beta-propeller / IFT140 first beta-propeller / IFT140 second beta-propeller / WDR19 first beta-propeller / WDR35 second beta-propeller / IF140 C-terminal TPR domain / WDR35/TULP4 N-terminal / WD repeat-containing protein 35, TPR repeats / : / : / IFT121, second zinc finger domain / IF140/IFT172 TPR domain / : / IFT80/172/WDR35/WDR19 TPR domain / Intraflagellar transport protein 122 homolog / : / : / IFT122 second beta-propeller / IFT122 first beta-propeller / IFT122, TPR domain / Tetratricopeptide repeat / TPR repeat region circular profile. / TPR repeat profile. / Tetratricopeptide repeats / Tetratricopeptide repeat / Tetratricopeptide-like helical domain superfamily / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily 類似検索 - ドメイン・相同性
Tetratricopeptide repeat protein 21B / WD repeat-containing protein 19 / Intraflagellar transport protein 43 homolog / Intraflagellar transport protein 140 homolog / Intraflagellar transport protein 122 homolog / WD repeat-containing protein 35 類似検索 - 構成要素
ジャーナル: Nat Cell Biol / 年: 2018 タイトル: The cryo-EM structure of intraflagellar transport trains reveals how dynein is inactivated to ensure unidirectional anterograde movement in cilia. 著者: Mareike A Jordan / Dennis R Diener / Ludek Stepanek / Gaia Pigino / 要旨: Movement of cargos along microtubules plays key roles in diverse cellular processes, from signalling to mitosis. In cilia, rapid movement of ciliary components along the microtubules to and from the ...Movement of cargos along microtubules plays key roles in diverse cellular processes, from signalling to mitosis. In cilia, rapid movement of ciliary components along the microtubules to and from the assembly site is essential for the assembly and disassembly of the structure itself. This bidirectional transport, known as intraflagellar transport (IFT), is driven by the anterograde motor kinesin-2 and the retrograde motor dynein-1b (dynein-2 in mammals). However, to drive retrograde transport, dynein-1b must first be delivered to the ciliary tip by anterograde IFT. Although, the presence of opposing motors in bidirectional transport processes often leads to periodic stalling and slowing of cargos, IFT is highly processive. Using cryo-electron tomography, we show that a tug-of-war between kinesin-2 and dynein-1b is prevented by loading dynein-1b onto anterograde IFT trains in an autoinhibited form and by positioning it away from the microtubule track to prevent binding. Once at the ciliary tip, dynein-1b must transition into an active form and engage microtubules to power retrograde trains. These findings provide a striking example of how coordinated structural changes mediate the behaviour of complex cellular machinery.