The full range of color discrimination in humans is based on the presence and function of three cone photoreceptor mechanisms. Each cone type possesses a photo-sensitive pigment-protein complex consisting of 11-cis retinal and a unique opsin protein, which gives sensitivity in the short (S cone, peak sensitivity about 420nm), middle (M cone, peak sensitivity about 530nm with polymorphism; Winderckx et al., 1993; Neitz & Neitz, 1998), and long (L cone, peak sensitivity about 560nm with polymorphism; Neitz & Jacobs, 1990) wavelengths of the light spectrum. All three opsins are transmembrane proteins with seven membrane-spanning regions. Genes for the three types of cone opsins and the rod photoreceptor rhodopsin gene seem to be homologous with varying amounts of conservation. Strongest conservation is between the middle (green) and long (red) wavelength sensitive pigments on the X chromosome, suggesting a relatively recent duplication/divergence event (Nathans, 1989; Nathans et al., 1992). The S cone (blue) opsin is located on chromosome 7 and seems to have stronger conservation with rhodopsin. Cone photoreceptor distribution in humans is dominated by the M and L cone pigments.
Specificity
Recognizes Opsin, blue.
Immunogen
Epitope: blue
Recombinant human blue opsin.
Application
Immunohistochemistry: 1:200-1:300 on formalin-fixed, paraffin-embedded mouse retina tissue. Antigen retrieval method recommend is HIER with steam heat; other fixation and retrieval methods are untested.
Optimal working dilutions must be determined by the end user.
Research Category Neuroscience
Research Sub Category Sensory & PNS
This Anti-Opsin Antibody, blue is validated for use in IH(P) for the detection of Opsin.
Physical form
Format: Purified
Protein A purified
Purified immunoglobulinin PBS {0.02M phosphate, 0.25M NaCl, pH 7.6} with 0.1% sodium azide as a preservative
Storage and Stability
Maintain for 1 year at 2–8°C from date of shipment.
Analysis Note
Control Retina
Legal Information
CHEMICON is a registered trademark of Merck KGaA, Darmstadt, Germany
Disclaimer
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
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Storage Class Code
12 - Non Combustible Liquids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
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American journal of human genetics, 99(3), 777-784 (2016-09-03)
Inherited retinal diseases (IRDs) are a diverse group of genetically and clinically heterogeneous retinal abnormalities. The present study was designed to identify genetic defects in individuals with an uncommon combination of autosomal recessive progressive cone-rod degeneration accompanied by sensorineural hearing
Histopathology and functional correlations in a patient with a mutation in RPE65, the gene for retinol isomerase.
Four studies were performed to further clarify the contribution of rod/cone and intrinsically photoreceptive retinal ganglion cells to measures of entrainment, dark preference, light-induced locomotor suppression and photosomnolence. Wild type (WT), retinally degenerate (rd/rd), and melanopsin-less (OPN4⁻/⁻) mouse strains were
The Journal of neuroscience : the official journal of the Society for Neuroscience, 31(28), 10403-10411 (2011-07-15)
As cone photoreceptors mediate vision in bright light, their photopigments are bleached at a rapid rate and require substantial recycling of the chromophore 11-cis-retinal (RAL) for continued function. The retinal pigment epithelium (RPE) supplies 11-cis-RAL to both rod and cone
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