Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

9.5K
At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
9.5K
Channel Rhodopsins01:11

Channel Rhodopsins

3.3K
Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...
3.3K
Protein Import into the Peroxisomes01:27

Protein Import into the Peroxisomes

5.5K
Cells contain membrane-bound organelles called peroxisomes that oxidize organic molecules by transferring hydrogen atoms to oxygen, producing hydrogen peroxide. Peroxisomes enzymatically convert the released hydrogen peroxide into water and oxygen.
Peroxisomal Protein Import:
Peroxisomes lack the genetic machinery required to code for their own proteins. Hence, most peroxisomal membrane, lumenal and transmembrane proteins are synthesized in the cytoplasm or ER and transported to the peroxisome...
5.5K
Anatomy of the Eyeball01:20

Anatomy of the Eyeball

10.1K
The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle...
10.1K
G-Protein Gated Ion Channels01:21

G-Protein Gated Ion Channels

5.9K
GPCRs are primarily responsible for our sense of smell, taste, and vision.  The binding of a sensory stimulus activates GPCR to stimulate effector proteins, many of which are ion channels in the sensory organs. GPCRs modulate the opening and closing of the target ion channels either directly by binding them, or by releasing second messengers that activate these channels. As ions move across the membrane, the membrane potential is altered, which induces an appropriate response.
Sensory...
5.9K
The Pineal Gland01:02

The Pineal Gland

5.7K
The pineal gland, a diminutive endocrine structure named for its pinecone-shaped appearance, is situated atop the third ventricle within the diencephalon region of the forebrain. This gland, composed of secretory cells known as pinealocytes arranged in compact cords and clusters around dense particles of calcium salts, plays a pivotal role in hormonal regulation.
The primary secretion of the pineal gland is the hormone melatonin, derived from serotonin. The concentration of melatonin in the...
5.7K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

The Biodiversity Cell Atlas: mapping the tree of life at cellular resolution.

Nature·2025
Same author

A genome resource for the marine annelid Platynereis spp.

BMC genomics·2025
Same author

Spotiflow: accurate and efficient spot detection for fluorescence microscopy with deep stereographic flow regression.

Nature methods·2025
Same author

A genome resource for the marine annelid <i>Platynereis dumerilii</i>.

bioRxiv : the preprint server for biology·2024
Same author

Publisher Correction: A lamprey neural cell type atlas illuminates the origins of the vertebrate brain.

Nature ecology & evolution·2023
Same author

A lamprey neural cell type atlas illuminates the origins of the vertebrate brain.

Nature ecology & evolution·2023
Same journal

Distinct involvements of the subthalamic nucleus subpopulations in reward-biased decision-making in monkeys.

eLife·2026
Same journal

Pink1-mediated mitophagy in the endothelium releases proteins encoded by mitochondrial DNA and activates neutrophil responses during inflammation.

eLife·2026
Same journal

Restraint of melanoma progression by cells in the local skin environment.

eLife·2026
Same journal

Brawn before bite in endemic Asian eutherian mammals after the end-Cretaceous extinction.

eLife·2026
Same journal

Experimental evolution to thermal stress indicates climate resilience in a cosmopolitan arthropod.

eLife·2026
Same journal

Correlates of protection against African swine fever virus identified by a systems immunology approach.

eLife·2026
See all related articles

Related Experiment Video

Updated: Feb 20, 2026

Dissection, Culture, and Analysis of Xenopus laevis Embryonic Retinal Tissue
10:22

Dissection, Culture, and Analysis of Xenopus laevis Embryonic Retinal Tissue

Published on: December 23, 2012

14.4K

The enigmatic xenopsins.

Detlev Arendt1,2

  • 1Developmental Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany.

Elife
|October 20, 2017
PubMed
Summary
This summary is machine-generated.

A novel opsin protein has been discovered, changing our understanding of photoreceptors. This finding offers new insights into the mechanisms of light detection in biological systems.

Keywords:
Leptochiton asellusevolutionevolutionary biologyeyegenomicsinvertebratesneuroscienceopsinphotoreceptor

More Related Videos

Microinjection of DNA into Eyebuds in Xenopus laevis Embryos and Imaging of GFP Expressing Optic Axonal Arbors in Intact, Living Xenopus Tadpoles
06:32

Microinjection of DNA into Eyebuds in Xenopus laevis Embryos and Imaging of GFP Expressing Optic Axonal Arbors in Intact, Living Xenopus Tadpoles

Published on: September 4, 2019

6.7K
Determination of Photoreceptor Cell Spectral Sensitivity in an Insect Model from In Vivo Intracellular Recordings
08:33

Determination of Photoreceptor Cell Spectral Sensitivity in an Insect Model from In Vivo Intracellular Recordings

Published on: February 26, 2016

12.0K

Related Experiment Videos

Last Updated: Feb 20, 2026

Dissection, Culture, and Analysis of Xenopus laevis Embryonic Retinal Tissue
10:22

Dissection, Culture, and Analysis of Xenopus laevis Embryonic Retinal Tissue

Published on: December 23, 2012

14.4K
Microinjection of DNA into Eyebuds in Xenopus laevis Embryos and Imaging of GFP Expressing Optic Axonal Arbors in Intact, Living Xenopus Tadpoles
06:32

Microinjection of DNA into Eyebuds in Xenopus laevis Embryos and Imaging of GFP Expressing Optic Axonal Arbors in Intact, Living Xenopus Tadpoles

Published on: September 4, 2019

6.7K
Determination of Photoreceptor Cell Spectral Sensitivity in an Insect Model from In Vivo Intracellular Recordings
08:33

Determination of Photoreceptor Cell Spectral Sensitivity in an Insect Model from In Vivo Intracellular Recordings

Published on: February 26, 2016

12.0K

Area of Science:

  • * Molecular Biology and Photochemistry

Background:

  • * Opsins are crucial light-sensitive proteins integral to photoreceptor function.
  • * The discovery of new opsin variants expands our knowledge of visual pigment diversity.

Purpose of the Study:

  • * To characterize a newly identified opsin and elucidate its role in photoreception.
  • * To investigate the structural and functional properties of this novel opsin.

Main Methods:

  • * Utilized molecular cloning and heterologous expression techniques.
  • * Performed spectrophotometric and electrophysiological analyses to assess protein function.

Main Results:

  • * The novel opsin exhibits unique spectral sensitivity.
  • * Functional assays reveal distinct signaling properties compared to known opsins.

Conclusions:

  • * This discovery broadens the known repertoire of opsins.
  • * The new opsin provides a novel tool for studying visual processing and related biological phenomena.