The neuronal protein GAP-43 has been implicated in a number of key processes in neural development and synaptic behavior. There have been no reports identifying an invertebrate molecule with homology to GAP-43. In this study we have begun to explore the biochemistry and genetics of the Drosophila gene nerd, which was isolated by vitrue of its DNA homology to mammalian GAP-43. Two proteins arise from the nerd locus and share a conserved motif, the GAP43 module. This twenty amino acid domain unites a small family of brainspecific mammalian proteins that are believed to function similarly. Based on protein sequence, biochemical activities and nervous system-specific tissue distribution we argue that nerd represents a functional homolog of vertebrate GAP-43. The possibility of a mutational analysis of nerd makes the study of this gene in Drosophila a valuable extention of previous studies in vertebrate systems. An initial characterization of mutants that map within or close to the nerd region on the second chromosome is detailed.
","abstract_html":"<p>The neuronal protein GAP-43 has been implicated in a number of key processes in neural development and synaptic behavior. There have been no reports identifying an invertebrate molecule with homology to GAP-43. In this study we have begun to explore the biochemistry and genetics of the Drosophila gene nerd, which was isolated by vitrue of its DNA homology to mammalian GAP-43. Two proteins arise from the nerd locus and share a conserved motif, the GAP43 module. This twenty amino acid domain unites a small family of brainspecific mammalian proteins that are believed to function similarly. Based on protein sequence, biochemical activities and nervous system-specific tissue distribution we argue that nerd represents a functional homolog of vertebrate GAP-43. The possibility of a mutational analysis of nerd makes the study of this gene in Drosophila a valuable extention of previous studies in vertebrate systems. An initial characterization of mutants that map within or close to the nerd region on the second chromosome is detailed.</p>","abstract_has_math":false,"creators":["Neel, Victor"],"institution":null,"degree_name":"Doctor of Philosophy (PhD)","degree_level":"Thesis","degree_discipline":null,"degree_department":null,"school":null,"contributors":["Michael W. Young"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1994,"date_issued":"1994-01-01T08:00:00Z","date_published":"1994-01-01T08:00:00Z","updated_at":"2026-07-24T04:11:05Z","subjects":["GAP-43","Drosophila","nerd gene","neural development","homolog","nervous system","Life Sciences"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://digitalcommons.rockefeller.edu/student_theses_and_dissertations/350","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Michael W. Young"]},{"key":"dc:creator","label":"Author","values":["Neel, Victor"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Doctor of Philosophy (PhD)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["GAP-43","Drosophila","nerd gene","neural development","homolog","nervous system","Life Sciences"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://digitalcommons.rockefeller.edu/student_theses_and_dissertations/350"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The neuronal protein GAP-43 has been implicated in a number of key processes in neural development and synaptic behavior. There have been no reports identifying an invertebrate molecule with homology to GAP-43. In this study we have begun to explore the biochemistry and genetics of the Drosophila gene nerd, which was isolated by vitrue of its DNA homology to mammalian GAP-43. Two proteins arise from the nerd locus and share a conserved motif, the GAP43 module. This twenty amino acid domain unites a small family of brainspecific mammalian proteins that are believed to function similarly. Based on protein sequence, biochemical activities and nervous system-specific tissue distribution we argue that nerd represents a functional homolog of vertebrate GAP-43. The possibility of a mutational analysis of nerd makes the study of this gene in Drosophila a valuable extention of previous studies in vertebrate systems. An initial characterization of mutants that map within or close to the nerd region on the second chromosome is detailed.
"]},{"key":"dc:title","label":"Title","values":["nerd: A Neuron-Specific Gene in Drosophila Melanogaster Related to Vertebrate GAP-43"]}]}],"canonical_facts":{"dc:contributor":["Michael W. Young"],"dc:creator":["Neel, Victor"],"dc:description.abstract":["The neuronal protein GAP-43 has been implicated in a number of key processes in neural development and synaptic behavior. There have been no reports identifying an invertebrate molecule with homology to GAP-43. In this study we have begun to explore the biochemistry and genetics of the Drosophila gene nerd, which was isolated by vitrue of its DNA homology to mammalian GAP-43. Two proteins arise from the nerd locus and share a conserved motif, the GAP43 module. This twenty amino acid domain unites a small family of brainspecific mammalian proteins that are believed to function similarly. Based on protein sequence, biochemical activities and nervous system-specific tissue distribution we argue that nerd represents a functional homolog of vertebrate GAP-43. The possibility of a mutational analysis of nerd makes the study of this gene in Drosophila a valuable extention of previous studies in vertebrate systems. An initial characterization of mutants that map within or close to the nerd region on the second chromosome is detailed.
"],"dc:identifier":["https://digitalcommons.rockefeller.edu/student_theses_and_dissertations/350"],"dc:subject":["GAP-43","Drosophila","nerd gene","neural development","homolog","nervous system","Life Sciences"],"dc:title":["nerd: A Neuron-Specific Gene in Drosophila Melanogaster Related to Vertebrate GAP-43"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["Doctor of Philosophy (PhD)"]},"updated_at":"2026-07-24T04:11:05Z"}