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Rhodopsin: History, Structure & Phototransduction

Rhodopsin, also known as visual purple, is a protein encoded by the RHO gene and a G-protein-coupled receptor (GPCR). It is a light-sensitive receptor protein that triggers visual phototransduction in rod cells. Rhodopsin mediates dim light vision and thus is extremely sensitive to light. When rhodopsin is exposed to light, it immediately photobleaches.…

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Rhodopsin topic overview

The analysis highlights History, Structure and Phototransduction as prominent areas in the source structure around Rhodopsin.

Related topics
64
Source areas
6
Connected nodes
70
Extracted relationships
184
Concept neighborhoods
20
Bridge connections
70

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Structure · 21 topics
Phototransduction · 15 topics
History · 11 topics
Overview · 11 topics
Diseases of the retina · 3 topics
General · 3 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Aliases
RHO, CSNBAD1, OPN2, RP4, rhodopsin, Rhodopsin, visual purple
Available structures
Available structuresPDBOrtholog search: PDBe RCSB List of PDB id codes4ZWJ, 5DGY
Band
3q22.1 · 6 E3|6 53.72 cM
Bgee
choroid · buccal mucosa cell · testicle · retina · retinal pigment epithelium
BioGPS
More reference expression data
Chr.
Chromosome 3 (human) · Chromosome 6 (mouse)

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

History

General

Structure

Phototransduction

Diseases of the retina

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How Rhodopsin connects Entity context

The extracted context around Rhodopsin shows recurring relationship patterns in the source. For example, Rhodopsin → 11-cis retinal binding, absorption of visible light, cell projection, cell-cell junction, cellular response to light stimulus, ciliary membrane, detection of light stimulus, G protein-coupled photoreceptor activity, G protein-coupled receptor activity, G protein-coupled receptor signaling pathway, Golgi apparatus, Golgi membrane, Golgi-associated vesicle membrane, integral component of membrane, integral component of plasma membrane, membrane, metal ion binding, photoreceptor activity, photoreceptor cell maintenance, photoreceptor disc membrane Another extracted example is Rhodopsin → buccal mucosa cell, choroid, ciliary body, conjunctival fornix, corneal stroma, epithelium of lens, gastrula, iris, lower lobe of lung, neural layer of retina, occipital lobe, outer nuclear layer, pars reticulata, retina, retinal pigment epithelium, secondary oocyte, superior frontal gyrus, testicle, tibiofemoral joint. Use these groups to spot repeated connection types before inspecting the individual relationships.

Rhodopsin

Top relations

Gene ontology · 39
Rhodopsin → 11-cis retinal binding, absorption of visible light, cell projection, cell-cell junction, cellular response to light stimulus, ciliary membrane, detection of light stimulus, G protein-coupled photoreceptor activity, G protein-coupled receptor activity, G protein-coupled receptor signaling pathway, Golgi apparatus, Golgi membrane, Golgi-associated vesicle membrane, integral component of membrane, integral component of plasma membrane, membrane, metal ion binding, photoreceptor activity, photoreceptor cell maintenance, photoreceptor disc membrane
Bgee · 19
Rhodopsin → buccal mucosa cell, choroid, ciliary body, conjunctival fornix, corneal stroma, epithelium of lens, gastrula, iris, lower lobe of lung, neural layer of retina, occipital lobe, outer nuclear layer, pars reticulata, retina, retinal pigment epithelium, secondary oocyte, superior frontal gyrus, testicle, tibiofemoral joint
RNA expression pattern · 19
Rhodopsin → buccal mucosa cell, choroid, ciliary body, conjunctival fornix, corneal stroma, epithelium of lens, gastrula, iris, lower lobe of lung, neural layer of retina, occipital lobe, outer nuclear layer, pars reticulata, retina, retinal pigment epithelium, secondary oocyte, superior frontal gyrus, testicle, tibiofemoral joint
related to External links · 15
Rhodopsin → Archived, Fernandez, Jones BW, Kolb, March, Medicine Medical Subject Headings, MeSH, National Library, Nelson, The, The Rhodopsin ProteinPhotoisomerization, University, Utah, Wayback Machine, Webvision Home Page
related to Structure · 14
Rhodopsin → A-based, Also, Artificially, G-protein-coupled, GPCR, GPCRs, However, It, Opsins, Schiff-base, Such, The, Therefore, Thus
related to Activation · 13
Rhodopsin → CH, George Wald, II, In, IR, NH, Nobel, Schiff, Schiff's, The, This, UV/Vis, When
related to history · 10
Rhodopsin → Ancient Greek, Franz Christian Boll, G-protein-coupled, German, It, The, Today, When George Wald, When Wald, Wilhelm Friedrich Kühne
related to Deactivation · 9
Rhodopsin → During, Higher, II, In, Meta II, Meta III, Schiff, This, Whether
related to Diseases of the retina · 6
Rhodopsin → Golgi, In, Mutations, Other, Several, X-linked
related to Phototransduction cascade · 6
Rhodopsin → G-protein, Gt, GTP, Metarhodopsin II, The, This

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

light retinal protein opsin phototransduction gene visual binding receptor bp lysine chr human band ii meta 11-cis-retinal all-trans-retinal chromosome membrane

Rhodopsin relationships Subject–Predicate–Object triples

TTTA extracted 184 structured relationships around Rhodopsin. Examples in this analysis include Rhodopsin → Aliases → RHO, CSNBAD1, OPN2, RP4, rhodopsin, Rhodopsin, visual purple and Rhodopsin → Available structures → Available structuresPDBOrtholog search: PDBe RCSB List of PDB id codes4ZWJ, 5DGY. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
RhodopsinAliasesRHO, CSNBAD1, OPN2, RP4, rhodopsin, Rhodopsin, visual purple1.00infobox
RhodopsinAvailable structuresAvailable structuresPDBOrtholog search: PDBe RCSB List of PDB id codes4ZWJ, 5DGY1.00infobox
RhodopsinBand3q22.11.00infobox
RhodopsinBand6 E3|6 53.72 cM1.00infobox
RhodopsinBgeechoroid1.00infobox
RhodopsinBgeebuccal mucosa cell1.00infobox
RhodopsinBgeetesticle1.00infobox
RhodopsinBgeeretina1.00infobox
RhodopsinBgeeretinal pigment epithelium1.00infobox
RhodopsinBgeesecondary oocyte1.00infobox
RhodopsinBgeelower lobe of lung1.00infobox
RhodopsinBgeepars reticulata1.00infobox
RhodopsinBgeesuperior frontal gyrus1.00infobox
RhodopsinBgeeoccipital lobe1.00infobox
RhodopsinBgeeneural layer of retina1.00infobox
RhodopsinBgeeepithelium of lens1.00infobox
RhodopsinBgeeciliary body1.00infobox
RhodopsinBgeeiris1.00infobox
RhodopsinBgeecorneal stroma1.00infobox
RhodopsinBgeeconjunctival fornix1.00infobox
RhodopsinBgeegastrula1.00infobox
RhodopsinBgeeouter nuclear layer1.00infobox
RhodopsinBgeetibiofemoral joint1.00infobox
RhodopsinBioGPSMore reference expression data1.00infobox
RhodopsinChr.Chromosome 3 (human)1.00infobox
RhodopsinChr.Chromosome 6 (mouse)1.00infobox
RhodopsinDatabasesNCBI: entry; OMA: entry1.00infobox
RhodopsinEnd129,535,344 bp1.00infobox
RhodopsinEnd115,916,997 bp1.00infobox
RhodopsinEnsemblENSG000001639141.00infobox

Related concept clusters Concept neighborhoods

The concept neighborhoods around Rhodopsin bring nearby vocabulary together. In this analysis, examples include Protein, Light and Retinal. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Rhodopsin
    • Protein
    • Light
    • Retinal
    • Membrane
    • Gene
    • Phototransduction
    • Receptor
    • Binding
    • 11-cis-retinal
    • Lysine
    • Visual
    • Diseases
  • rhodopsin
    • Protein
    • Light
    • Retinal
    • Membrane
    • Gene
    • Phototransduction
    • Receptor
    • Binding
    • 11-cis-retinal
    • Lysine
    • Visual
    • Diseases
  • protein
    • Retinal
    • Receptor
    • Visual
    • Rhodopsin
    • Rho
    • Outer
    • Rod
    • Segment
    • Membrane
    • Gene
    • Phototransduction
    • Light
  • gene
    • Diseases
    • Location
    • Rho
    • Chromosome
    • Human
    • Retina
    • Bp
    • Chr
    • Visual
    • Eye
    • Purple
    • Band
  • g-protein-coupled receptor
    • Phototransduction
    • Visual
    • Rho
    • Receptor
    • Light
    • Purple
    • Including
    • Photoreceptor
    • Rhodopsin
    • Opsins
    • Eye
    • Gene
  • light
    • Rhodopsin
    • Phototransduction
    • Receptor
    • Visual
    • Sensitive
    • Opsins
    • Protein
    • Retinal
    • Eye
    • Location
    • Purple
    • Rho
  • receptor protein
    • Phototransduction
    • Retinal
    • Visual
    • Rho
    • Receptor
    • Rhodopsin
    • Light
    • Outer
    • Rod
    • Segment
    • Membrane
    • Gene
  • visual phototransduction
    • Purple
    • Rho
    • Phototransduction
    • Receptor
    • Visual
    • Retina
    • Gene
    • Location
    • Activation
    • Also
    • Chromosome
    • Human

Connections between topic areas Semantic bridges

For Rhodopsin, one of the stronger structural bridges in this analysis connects Rhodopsin with Structure. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
RhodopsinStructure · splits 49 ⟂ 22
RhodopsinPhototransduction · splits 55 ⟂ 16
RhodopsinOverview · splits 59 ⟂ 12
RhodopsinHistory · splits 59 ⟂ 12
RhodopsinGeneral · splits 67 ⟂ 4
RhodopsinDiseases of the retina · splits 67 ⟂ 4

Map overview Semantic statistics

Rhodopsin

Nodes71
Edges70
Triples184
Avg. degree1.97
Density0.028169
Components1

Source & methodology

TTTA analyzes the structure around Rhodopsin to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Structure & Phototransduction, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Rhodopsin · EN edition · Analysis: TopicsToTalkAbout

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