@irobcross.bsky.social
Nick showing Ron Vale the eduWOSM.
June 22, 2025 at 8:02 AM
Nick showing Ron Vale the eduWOSM.
In BIORXIV/2025/651652, we use ATPγS to reveal a previously-occult kinesin state. In the Await-Isomerisation (AI) state, ATP is bound but NL docking and hydrolysis are inhibited. ATPγS overstabilises the AI state, producing a characteristic signature of load-independent 8 nm tethered backslips:
May 2, 2025 at 10:10 AM
In BIORXIV/2025/651652, we use ATPγS to reveal a previously-occult kinesin state. In the Await-Isomerisation (AI) state, ATP is bound but NL docking and hydrolysis are inhibited. ATPγS overstabilises the AI state, producing a characteristic signature of load-independent 8 nm tethered backslips:
Nick has been in Rennes, helping Romain Gibeaux install a WOSM-TIRF. Big happiness!
April 5, 2025 at 2:05 PM
Nick has been in Rennes, helping Romain Gibeaux install a WOSM-TIRF. Big happiness!
Prakash et al (doi.org/10.1101/2025...), emerging from a happy & ongoing multilab collaboration, shows that a mix of human α1β3 and α1β4 tubulins assembles in vitro into segmented microtubules in which the segments have different protofilament numbers, and are recognized by different MAPS.
Tubulin isotypes polymerise into sectioned microtubules that locally regulate protein binding
Microtubules assemble from tubulin heterodimers composed of conserved α- and β- tubulins. In many species, including humans, tubulins are expressed from multiple genes. While the resulting tubulin iso...
doi.org
March 14, 2025 at 8:41 AM
Prakash et al (doi.org/10.1101/2025...), emerging from a happy & ongoing multilab collaboration, shows that a mix of human α1β3 and α1β4 tubulins assembles in vitro into segmented microtubules in which the segments have different protofilament numbers, and are recognized by different MAPS.
Yean Ming Chew and I wrote doi.org/10.1042/BST2... about MT lattice switching. We discuss evidence that protofilament-level structural switching is ancient and fundamental and conserved; and that tubulation creates new allosteric interfaces that operate on essentially the same structural switch.
February 12, 2025 at 4:22 PM
Yean Ming Chew and I wrote doi.org/10.1042/BST2... about MT lattice switching. We discuss evidence that protofilament-level structural switching is ancient and fundamental and conserved; and that tubulation creates new allosteric interfaces that operate on essentially the same structural switch.