Journal article
Photoreceptor inner and outer segments
Current topics in membranes, Vol.72, pp.231-265
2013
DOI: 10.1016/B978-0-12-417027-8.00007-6
PMID: 24210432
Abstract
Photoreceptors are exquisitely adapted to transform light stimuli into electrical signals that modulate neurotransmitter release. These cells are organized into several compartments including the unique outer segment (OS). Its whole function is to absorb light and transduce this signal into a change of membrane potential. Another compartment is the inner segment where much of metabolism and regulation of membrane potential takes place and that connects the OS and synapse. The synapse is the compartment where changes in membrane potentials are relayed to other neurons in the retina via release of neurotransmitter. The composition of the plasma membrane surrounding these compartments varies to accommodate their specific functions. In this chapter, we discuss the organization of the plasma membrane emphasizing the protein composition of each region as it relates to visual signaling. We also point out examples where mutations in these proteins cause visual impairment.
Details
- Title: Subtitle
- Photoreceptor inner and outer segments
- Creators
- Sheila A Baker - Department of Biochemistry, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA. Electronic address: sheila-baker@uiowa.eduVasily Kerov
- Resource Type
- Journal article
- Publication Details
- Current topics in membranes, Vol.72, pp.231-265
- Publisher
- United States
- DOI
- 10.1016/B978-0-12-417027-8.00007-6
- PMID
- 24210432
- ISSN
- 1063-5823
- Grant note
- R01 EY020542 / NEI NIH HHS
- Language
- English
- Date published
- 2013
- Academic Unit
- Molecular Physiology and Biophysics; Iowa Neuroscience Institute; Biochemistry and Molecular Biology; University College Courses; Ophthalmology and Visual Sciences
- Record Identifier
- 9984024547702771
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