Identification, characterization, and developmental regulation of a receptor guanylyl cyclase expressed during early stages of Drosophila development

L. McNeil, M. Chinkers, Michael Forte

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Abstract

Membrane forms of guanylyl cyclase are single-transmembrane proteins that are activated by the binding of specific peptide ligands to their extracellular domains. In this report, we describe the identification and characterization of a Drosophila cDNA clone encoding a protein, DrGC-1, with high sequence identity to members of this family of receptor proteins. The protein contains a single, hydrophobic domain predicted to represent a transmembrane segment separating an extracellular domain with significant sequence identity (30%) to sea urchin egg peptide receptors from intracellular domains containing a protein kinase-like domain followed by a region with high sequence identity (65%) to cyclase catalytic domains found in receptor guanylyl cyclases from both vertebrates and invertebrates. In contrast to other members of this family, DrGC-1 is predicted to contain a carboxyl-terminal extension of 430 residues that has no homology to any described protein. Northern analysis indicates that DrGC-1 transcripts are present at variable levels in all stages of development. In situ hybridization demonstrates that high levels of uniformly distributed transcript are present in 0-2-h embryos. Later in embryogenesis (14-18 h), elevated levels of hybridization appear to be preferentially associated with muscle fibers.

Original languageEnglish (US)
Pages (from-to)7189-7196
Number of pages8
JournalJournal of Biological Chemistry
Volume270
Issue number13
DOIs
StatePublished - 1995

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Guanylate Cyclase-Coupled Receptors
Drosophila
Proteins
Peptide Receptors
Sea Urchins
Guanylate Cyclase
Invertebrates
Protein Binding
Protein Kinases
Embryonic Development
In Situ Hybridization
Ovum
Vertebrates
Catalytic Domain
Embryonic Structures
Complementary DNA
Clone Cells
Muscle
Ligands
Muscles

ASJC Scopus subject areas

  • Biochemistry

Cite this

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title = "Identification, characterization, and developmental regulation of a receptor guanylyl cyclase expressed during early stages of Drosophila development",
abstract = "Membrane forms of guanylyl cyclase are single-transmembrane proteins that are activated by the binding of specific peptide ligands to their extracellular domains. In this report, we describe the identification and characterization of a Drosophila cDNA clone encoding a protein, DrGC-1, with high sequence identity to members of this family of receptor proteins. The protein contains a single, hydrophobic domain predicted to represent a transmembrane segment separating an extracellular domain with significant sequence identity (30{\%}) to sea urchin egg peptide receptors from intracellular domains containing a protein kinase-like domain followed by a region with high sequence identity (65{\%}) to cyclase catalytic domains found in receptor guanylyl cyclases from both vertebrates and invertebrates. In contrast to other members of this family, DrGC-1 is predicted to contain a carboxyl-terminal extension of 430 residues that has no homology to any described protein. Northern analysis indicates that DrGC-1 transcripts are present at variable levels in all stages of development. In situ hybridization demonstrates that high levels of uniformly distributed transcript are present in 0-2-h embryos. Later in embryogenesis (14-18 h), elevated levels of hybridization appear to be preferentially associated with muscle fibers.",
author = "L. McNeil and M. Chinkers and Michael Forte",
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AU - McNeil, L.

AU - Chinkers, M.

AU - Forte, Michael

PY - 1995

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N2 - Membrane forms of guanylyl cyclase are single-transmembrane proteins that are activated by the binding of specific peptide ligands to their extracellular domains. In this report, we describe the identification and characterization of a Drosophila cDNA clone encoding a protein, DrGC-1, with high sequence identity to members of this family of receptor proteins. The protein contains a single, hydrophobic domain predicted to represent a transmembrane segment separating an extracellular domain with significant sequence identity (30%) to sea urchin egg peptide receptors from intracellular domains containing a protein kinase-like domain followed by a region with high sequence identity (65%) to cyclase catalytic domains found in receptor guanylyl cyclases from both vertebrates and invertebrates. In contrast to other members of this family, DrGC-1 is predicted to contain a carboxyl-terminal extension of 430 residues that has no homology to any described protein. Northern analysis indicates that DrGC-1 transcripts are present at variable levels in all stages of development. In situ hybridization demonstrates that high levels of uniformly distributed transcript are present in 0-2-h embryos. Later in embryogenesis (14-18 h), elevated levels of hybridization appear to be preferentially associated with muscle fibers.

AB - Membrane forms of guanylyl cyclase are single-transmembrane proteins that are activated by the binding of specific peptide ligands to their extracellular domains. In this report, we describe the identification and characterization of a Drosophila cDNA clone encoding a protein, DrGC-1, with high sequence identity to members of this family of receptor proteins. The protein contains a single, hydrophobic domain predicted to represent a transmembrane segment separating an extracellular domain with significant sequence identity (30%) to sea urchin egg peptide receptors from intracellular domains containing a protein kinase-like domain followed by a region with high sequence identity (65%) to cyclase catalytic domains found in receptor guanylyl cyclases from both vertebrates and invertebrates. In contrast to other members of this family, DrGC-1 is predicted to contain a carboxyl-terminal extension of 430 residues that has no homology to any described protein. Northern analysis indicates that DrGC-1 transcripts are present at variable levels in all stages of development. In situ hybridization demonstrates that high levels of uniformly distributed transcript are present in 0-2-h embryos. Later in embryogenesis (14-18 h), elevated levels of hybridization appear to be preferentially associated with muscle fibers.

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