Pineal Opsin: A Nonvisual Opsin Expressed in Chick Pineal

Pineal opsin (P-opsin), an opsin from chick that is highly expressed in pineal but is not detectable in retina, was cloned by the polymerase chain reaction. It is likely that the P-opsin lineage diverged from the retinal opsins early in opsin evolution. The amino acid sequence of P-opsin is 42 to 46...

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Published in:Science (American Association for the Advancement of Science) Vol. 267; no. 5203; pp. 1502 - 1506
Main Authors: Max, Marianna, McKinnon, Peter J., Seidenman, Kenneth J., Barrett, R. Keith, Applebury, Meredithe L., Takahashi, Joseph S., Margolskee, Robert F.
Format: Journal Article
Language:English
Published: Washington, DC American Society for the Advancement of Science 10-03-1995
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The American Association for the Advancement of Science
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Abstract Pineal opsin (P-opsin), an opsin from chick that is highly expressed in pineal but is not detectable in retina, was cloned by the polymerase chain reaction. It is likely that the P-opsin lineage diverged from the retinal opsins early in opsin evolution. The amino acid sequence of P-opsin is 42 to 46 percent identical to that of the retinal opsins. P-opsin is a seven-membrane spanning, G protein-linked receptor with a Schiff-base lysine in the seventh membrane span and a Schiff-base counterion in the third membrane span. The primary sequence of P-opsin suggests that it will be maximally sensitive to ∼500-nanometer light and produce a slow and prolonged phototransduction response consistent with the nonvisual function of pineal photoreception.
AbstractList Pineal opsin (P-opsin), an opsin from chick that is highly expressed in pineal but is not detectable in retina, was cloned by the polymerase chain reaction. It is likely that the P-opsin lineage diverged from the retinal opsins early in opsin evolution. The amino acid sequence of P-opsin is 42 to 46 percent identical to that of the retinal opsins. P-opsin is a seven-membrane spanning, G protein-linked receptor with a Schiff-base lysine in the seventh membrane span and a Schiff-base counterion in the third membrane span. The primary sequence of P-opsin suggests that it will be maximally sensitive to ∼500-nanometer light and produce a slow and prolonged phototransduction response consistent with the nonvisual function of pineal photoreception.
Pineal opsin, an opsin from chick that is highly expressed in pineal but is not detectable in retina, was cloned by the polymerase chain reaction. The amino acid sequence of pineal opsin is 42-46% identical to that of the retinal opsins.
Pineal opsin (P-opsin), an opsin from chick that is highly expressed in pineal but is not detectable in retina, was cloned by the polymerase chain reaction. It is likely that the P-opsin lineage diverged from the retinal opsins early in opsin evolution. The amino acid sequence of P-opsin is 42 to 46 percent identical to that of the retinal opsins. P-opsin is a seven-membrane spanning, G protein-linked receptor with a Schiff-base lysine in the seventh membrane span and a Schiff-base counterion in the third membrane span. The primary sequence of P-opsin suggests that it will be maximally sensitive to ~500-nanometer light and produce a slow and prolonged phototransduction response consistent with the nonvisual function of pineal photoreception.
Pineal opsin (P-opsin), an opsin from chick that is highly expressed in pineal but is not detectable in retina, was cloned by the polymerase chain reaction. It is likely that the P-opsin lineage diverged from the retinal opsins early in opsin evolution. The amino acid sequence of P-opsin is 42 to 46 percent identical to that of the retinal opsins. P-opsin is a seven-membrane spanning, G protein-linked receptor with a Schiff-base lysine in the seventh membrane span and a Schiff-base counterion in the third membrane span. The primary sequence of P-opsin suggests that it will be maximally sensitive to similar to 500-nanometer light and produce a slow and prolonged phototransduction response consistent with the nonvisual function of pineal photoreception.
Pineal opsin (P-opsin), an opsin from chick that is highly expressed in pineal but is not detectable in retina, was cloned by the polymerase chain reaction. It is likely that the P-opsin lineage diverged from the retinal opsins early in opsin evolution. The amino acid sequence of P-opsin is 42 to 46 percent identical to that of the retinal opsins. P-opsin is a seven-membrane spanning, G protein-linked receptor with a Schiff-base lysine in the seventh membrane span and a Schiff-base counterion in the third membrane span. The primary sequence of P-opsin suggests that it will be maximally sensitive to approximately 500-nanometer light and produce a slow and prolonged phototransduction response consistent with the nonvisual function of pineal photoreception.
Audience Academic
Author Margolskee, Robert F.
Takahashi, Joseph S.
McKinnon, Peter J.
Applebury, Meredithe L.
Barrett, R. Keith
Seidenman, Kenneth J.
Max, Marianna
Author_xml – sequence: 1
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  fullname: Max, Marianna
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  givenname: Peter J.
  surname: McKinnon
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  givenname: Kenneth J.
  surname: Seidenman
  fullname: Seidenman, Kenneth J.
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  givenname: R. Keith
  surname: Barrett
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  givenname: Meredithe L.
  surname: Applebury
  fullname: Applebury, Meredithe L.
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  surname: Takahashi
  fullname: Takahashi, Joseph S.
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  givenname: Robert F.
  surname: Margolskee
  fullname: Margolskee, Robert F.
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Keywords Vertebrata
Endocrine gland
Molecular structure
Pigments
Pineal body
Opsin
Chicken
Aves
Gene expression
Aminoacid sequence
Language English
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Snippet Pineal opsin (P-opsin), an opsin from chick that is highly expressed in pineal but is not detectable in retina, was cloned by the polymerase chain reaction. It...
Pineal opsin, an opsin from chick that is highly expressed in pineal but is not detectable in retina, was cloned by the polymerase chain reaction. The amino...
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StartPage 1502
SubjectTerms Amino Acid Sequence
Amino acids
Animals
Avian Proteins
Base Sequence
Biological and medical sciences
Biological Evolution
Brain Chemistry
Cell culture techniques
Chickens
Cloning, Molecular
Coding
Complementary DNA
Fundamental and applied biological sciences. Psychology
Hypothalamus. Hypophysis. Epiphysis. Urophysis
Introns
Libraries
Light
Molecular Sequence Data
Morphology. Functional localizations
Nerve Tissue Proteins - analysis
Nerve Tissue Proteins - chemistry
Nerve Tissue Proteins - genetics
Nerve Tissue Proteins - physiology
Opsins
Photoreceptors
Physiological aspects
Pineal gland
Pineal Gland - chemistry
Polymerase chain reaction
Protein Structure, Secondary
Proteins
Retina
Retina - chemistry
RNA
RNA, Messenger - analysis
Rod Opsins - analysis
Rod Opsins - chemistry
Rod Opsins - genetics
Rod Opsins - physiology
Sequence Homology, Amino Acid
Transcripts (Written Records)
Vertebrates
Vertebrates: endocrinology
Title Pineal Opsin: A Nonvisual Opsin Expressed in Chick Pineal
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