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Details on Person UniProt:Q9VP76-1 Ac78C

Class:IdReferenceIsoform:9637259
_chainChangeLogchain:1-1718 for 9637259 added on Fri February 15 2019
_displayNameUniProt:Q9VP76-1 Ac78C
_timestamp2023-11-03 15:54:28
chainchain:1-1718
checksum4CED55D0AF4FF87D
commentFUNCTION Catalyzes the formation of the signaling molecule cAMP in response to G-protein coupled receptor signaling (PubMed:10603085, PubMed:23929551). Probably downstream of gustatory receptors, involved in taste perception of sucrose, trehalose and caffeine (PubMed:19046378). Has no role in bitter perception (PubMed:19046378). In the circadian brain neuron evening cells (E-cells), involved in circadian pacemaker synchronization by playing a role in signaling downstream of the G protein-coupled receptor Pdfr, probably in conjunction with other, as yet unidentified, adenylate cyclases (PubMed:23929551).FUNCTION Does not have adenylyl cyclase activity and it is not involved in taste perception.CATALYTIC ACTIVITY ATP = 3',5'-cyclic AMP + diphosphateCOFACTOR Binds 2 magnesium ions per subunit. Is also active with manganese (in vitro).SUBCELLULAR LOCATION Expressed in labella, particularly in sugar-sensitive gustatory receptor neurons (GRNs).DEVELOPMENTAL STAGE Isoform B: Ubiquitously expressed in embryos, larvae and adult (PubMed:10603085). Isoform C: Temporally restricted to the earliest hours of embryogenesis before cellularization (PubMed:10603085). As germ band extension commences, expression decreases along the entire ventral surface of the embryo and is restricted to the cephalic furrow (CF) and anterior and posterior dorsal transverse folds (DTFs) (PubMed:10603085). By state 7, restricted expression in the CF and DTFs on the dorsal and lateral surfaces of the embryo (PubMed:10603085).DOMAIN The protein contains two modules with six transmembrane helices each; both are required for catalytic activity. Isolated N-terminal or C-terminal guanylate cyclase domains have no catalytic activity, but when they are brought together, enzyme activity is restored. The active site is at the interface of the two domains. Both contribute substrate-binding residues, but the catalytic metal ions are bound exclusively via the N-terminal guanylate cyclase domain.DISRUPTION PHENOTYPE RNAi-mediated knockdown in sugar gustatory neurons results in reduced sucrose response and no alteration in response to water (PubMed:19046378). RNAi-mediated knockdown in the pacemaker dorsal lateral neurons (LNDs) results in reduced Pigment-dispersing factor (Pdf) response in the circadian brain neurons evening cells (E-cells) (PubMed:23929551). Isoform B: Results in reduced sucrose and trehalose substances response and no alteration of water response or bitter perception (PubMed:19046378).MISCELLANEOUS Catalytically inactive.SIMILARITY Belongs to the adenylyl cyclase class-4/guanylyl cyclase family.
created[InstanceEdit:9637257] Weiser, JD
descriptionrecommendedName: fullName evidence="10 13"Adenylyl cyclase 78C ecNumber evidence="7"4.6.1.1
geneNameAc78C
CG10564
identifierQ9VP76
isoformParent
isSequenceChangedFALSE
keywordAlternative splicing
ATP-binding
cAMP biosynthesis
Cell membrane
Lyase
Magnesium
Membrane
Metal-binding
Nucleotide-binding
Reference proteome
Transmembrane
Transmembrane helix
modified[InstanceEdit:9676415] Weiser, JD
[InstanceEdit:9698430] Weiser, JD
[InstanceEdit:9750299] Weiser, JD
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
nameAc78C
referenceDatabase[ReferenceDatabase:2] UniProt
secondaryIdentifierAC78C_DROME
M9NG95
Q9VP75
sequenceLength1718
species[Species:56210] Drosophila melanogaster
variantIdentifierQ9VP76-1
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