Rims1 — Regulating Synaptic Membrane Exocytosis 1 is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
RIMS1 (Regulating Synaptic Membrane Exocytosis 1) encodes a Rab3-interacting molecule (RIM) that is a key scaffolding protein at the presynaptic active zone. RIMs regulate synaptic vesicle priming, docking, and Ca²⁺-triggered release.
| Attribute |
Value |
| Gene Symbol |
RIMS1 |
| Full Name |
Regulating Synaptic Membrane Exocytosis 1 |
| Chromosomal Location |
6q13 |
| NCBI Gene ID |
9747 |
| OMIM |
606410 |
| Ensembl ID |
ENSG00000165371 |
| UniProt ID |
Q86YW5 |
RIMS1 is a presynaptic active zone protein:
- Vesicle Priming: Facilitates synaptic vesicle priming for release
- Ca²⁺ Channel Coupling: Links voltage-gated Ca²⁺ channels to synaptic vesicles
- Rab3 Interaction: Binds Rab3/Rab27 to regulate vesicle cycling
- Active Zone Organization: Scaffolds other active zone proteins (Munc13, CAPS)
- Neurotransmitter Release: Essential for normal release probability and kinetics
| Disease |
Mechanism |
Inheritance |
| Alzheimer's Disease |
Altered active zone function affects synaptic transmission |
— |
| Parkinson's Disease |
RIM dysfunction affects dopaminergic vesicle release |
— |
| Epilepsy |
Dominant mutations cause epileptic encephalopathy (OMIM 618109) |
AD |
| Cone-Rod Dystrophy |
RIMS1 mutations cause retinal degeneration |
AD |
RIMS1 is expressed in:
- Cerebral cortex (pyramidal neurons)
- Hippocampus (CA1-CA3 regions)
- Cerebellum (Purkinje cells)
- Retina (photoreceptor cells, bipolar cells)
- Inner ear (hair cells)
- Endocrine tissues
| Target |
Approach |
Status |
| RIMS1 modulators |
Small molecules to enhance synaptic function |
Research |
| Gene therapy |
AAV delivery for retinal degeneration |
Preclinical |
- RIM function in synaptic transmission - Nat Neurosci (2005) - PMID:15838578
- RIMS1 mutations in cone-rod dystrophy - Nat Genet (2010) - PMID:20485450
- RIMS1 in epilepsy - Brain (2019) - PMID:31039251
- Active zone organization by RIM - Neuron (2017) - PMID:28712652
The study of Rims1 — Regulating Synaptic Membrane Exocytosis 1 has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
- Rosenmund C, et al. (2003). 'Regulation of synaptic vesicle priming by Munc13 and Munc18.' Neuron. PMID:14503283
- Richmond JE, et al. (2001). 'Munc13-1 is a presynaptic phorbol ester receptor.' Nature. PMID:11290335
- Betz A, et al. (2001). 'Munc13-1 functions as a Ca2+ and diacylglycerol-dependent facilitator of neurotransmitter release.' Nature. PMID:11290336
- Augustin I, et al. (1999). 'Munc13 proteins control vesicle priming in hippocampal neurons.' Journal of Neuroscience. PMID:10617613
- Koch H, et al. (2020). 'RIM-binding proteins in synaptic ribbon functions.' Cell Calcium. PMID:31972542
- Deng L, et al. (2011). 'RIM proteins and Ca2+ channel functions in synaptic transmission.' Cell Calcium. PMID:21349627
- Acuna C, et al. (2016). 'RIM-BP2 controls presynaptic Ca2+ channel nanodocks and synaptic vesicle fusion.' Cell. PMID:27545350
- Wang SS, et al. (2016). 'Assembly of synaptic vesicles and active zones.' Neuroscience. PMID:27126963