Complexin cross-links prefusion SNAREs into a zigzag array
Complexin prevents SNAREs from releasing neurotransmitters until an action potential
arrives at the synapse. To understand the mechanism for this inhibition, we determined the …
arrives at the synapse. To understand the mechanism for this inhibition, we determined the …
Otoferlin acts as a Ca2+ sensor for vesicle fusion and vesicle pool replenishment at auditory hair cell ribbon synapses
…, JP Hardelin, RB Sutton, P Avan, SS Krishnakumar… - Elife, 2017 - elifesciences.org
10.7554/eLife.31013.001 Hearing relies on rapid, temporally precise, and sustained
neurotransmitter release at the ribbon synapses of sensory cells, the inner hair cells (IHCs). This …
neurotransmitter release at the ribbon synapses of sensory cells, the inner hair cells (IHCs). This …
[PDF][PDF] Mutations in the neuronal vesicular SNARE VAMP2 affect synaptic membrane fusion and impair human neurodevelopment
…, F Martinez-Azorin, CE Prada, SS Krishnakumar - The American Journal of …, 2019 - cell.com
VAMP2 encodes the vesicular SNARE protein VAMP2 (also called synaptobrevin-2). Together
with its partners syntaxin-1A and synaptosomal-associated protein 25 (SNAP25), VAMP2 …
with its partners syntaxin-1A and synaptosomal-associated protein 25 (SNAP25), VAMP2 …
A conformational switch in complexin is required for synaptotagmin to trigger synaptic fusion
SS Krishnakumar, DT Radoff, D Kümmel… - Nature structural & …, 2011 - nature.com
The crystal structure of complexin bound to a prefusion SNAREpin mimetic shows that the
accessory helix extends away from the SNAREpin in an 'open' conformation, binding another …
accessory helix extends away from the SNAREpin in an 'open' conformation, binding another …
Calcium sensitive ring-like oligomers formed by synaptotagmin
…, F Pincet, SS Krishnakumar… - Proceedings of the …, 2014 - National Acad Sciences
The synaptic vesicle protein synaptotagmin-1 (SYT) is required to couple calcium influx to
the membrane fusion machinery. However, the structural mechanism underlying this process …
the membrane fusion machinery. However, the structural mechanism underlying this process …
[PDF][PDF] PRRT2 regulates synaptic fusion by directly modulating SNARE complex assembly
…, H Houlden, JE Rothman, SS Krishnakumar - Cell reports, 2018 - cell.com
Mutations in proline-rich transmembrane protein 2 (PRRT2) are associated with a range of
paroxysmal neurological disorders. PRRT2 predominantly localizes to the pre-synaptic …
paroxysmal neurological disorders. PRRT2 predominantly localizes to the pre-synaptic …
Hypothesis–buttressed rings assemble, clamp, and release SNAREpins for synaptic transmission
JE Rothman, SS Krishnakumar, K Grushin… - FEBS …, 2017 - Wiley Online Library
Neural networks are optimized to detect temporal coincidence on the millisecond timescale.
Here, we offer a synthetic hypothesis based on recent structural insights into SNARE s and …
Here, we offer a synthetic hypothesis based on recent structural insights into SNARE s and …
Symmetrical arrangement of proteins under release-ready vesicles in presynaptic terminals
…, X Li, K Grushin, SS Krishnakumar… - Proceedings of the …, 2021 - National Acad Sciences
Controlled release of neurotransmitters stored in synaptic vesicles (SVs) is a fundamental
process that is central to all information processing in the brain. This relies on tight coupling of …
process that is central to all information processing in the brain. This relies on tight coupling of …
Dilation of fusion pores by crowding of SNARE proteins
…, SM Auclair, W Vennekate, SS Krishnakumar… - Elife, 2017 - elifesciences.org
10.7554/eLife.22964.001 Hormones and neurotransmitters are released through fluctuating
exocytotic fusion pores that can flicker open and shut multiple times. Cargo release and …
exocytotic fusion pores that can flicker open and shut multiple times. Cargo release and …
Ring-like oligomers of Synaptotagmins and related C2 domain proteins
…, Y Cai, CV Sindelar, JE Rothman, SS Krishnakumar - Elife, 2016 - elifesciences.org
10.7554/eLife.17262.001 We recently reported that the C2AB portion of Synaptotagmin 1 (Syt1)
could self-assemble into Ca 2+ -sensitive ring-like oligomers on membranes, which …
could self-assemble into Ca 2+ -sensitive ring-like oligomers on membranes, which …