Constarium
← Search

Data · dataset · 2025

KIF1C activates and extends dynein movement through the FHF cargo adaptor

Listed in ZivaHub and Deakin Research Online and DMU Figshare — shown once because both records carry DOI 10.1038/s41594-024-01418-z

Cellular cargos move bidirectionally on microtubules by recruiting opposite polarity motors dynein and kinesin.

Description

These motors show co-dependence, where one requires the activity of the other, although the mechanism is unknown. Here, using in vitro reconstitutions, we show the kinesin-3 KIF1C acts both as an activator and processivity factor for dynein.

Activation requires only a fragment of the non-motor tail of KIF1C (KIF1C-stalk) binding the cargo adaptor HOOK3. The interaction site is separate from the constitutive factors FTS and FHIP, which link HOOK3 to small G-proteins on cargos. We provide a structural model for the auto-inhibited FTS- HOOK3-FHIP1B (FHF) and explain how KIF1C relieves it.

Read the rest (1 more)

Collectively, we explain co-dependency by revealing how mutual activation of dynein and kinesin occurs through their shared adaptor. Many adaptors bind both dynein and kinesins, suggesting this mechanism could be generalised to other bidirectional complexes.

Links

Where it is published

Catalogue records · 1

Topics

Inferred from text
Biochemistry and cell biology 69%
Provenance · 3 source records, 12 field assertions
SourceKeyLast seenRaw
ZivaHuboai:figshare.com:article/340471569 d agoJSON v1
Deakin Research Onlineoai:figshare.com:article/340471569 d agoJSON v1
DMU Figshareoai:figshare.com:article/340471569 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · zivahub uct ac zaconnector:zivahub_uct_ac_za@1.0.0
concepts[field].anzsrc:group:3101enrichment · zivahub uct ac zataxonomy-embedding@1.1.0title+keywords+description (69%)
concepts[field].local:field:earth-environmentalmapping · zivahub uct ac zaconnector:zivahub_uct_ac_za@1.0.0
concepts[field].local:field:earth-environmentalmapping · figshare dmu ac ukconnector:figshare_dmu_ac_uk@1.0.0
concepts[field].local:field:earth-environmentalmapping · dro deakin edu auconnector:dro_deakin_edu_au@1.0.0
concepts[field].local:field:life-sciencesmapping · zivahub uct ac zaconnector:zivahub_uct_ac_za@1.0.0
concepts[field].local:field:life-sciencesmapping · dro deakin edu auconnector:dro_deakin_edu_au@1.0.0
concepts[field].local:field:life-sciencesmapping · figshare dmu ac ukconnector:figshare_dmu_ac_uk@1.0.0
descriptionsource · zivahub uct ac zaconnector:zivahub_uct_ac_za@1.0.0/metadata/dc/description
licensesource · zivahub uct ac zaconnector:zivahub_uct_ac_za@1.0.0/metadata/dc/rights
publication_datesource · zivahub uct ac zaconnector:zivahub_uct_ac_za@1.0.0
titlesource · zivahub uct ac zaconnector:zivahub_uct_ac_za@1.0.0/metadata/dc/title