OR46A_DROME
ID OR46A_DROME Reviewed; 381 AA.
AC P81919; Q9U6X9; Q9V5H3;
DT 01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT 15-DEC-2003, sequence version 4.
DT 03-AUG-2022, entry version 150.
DE RecName: Full=Odorant receptor 46a, isoform A;
GN Name=Or46a;
GN Synonyms=AN8, AN9, dor19, DOR46F, DOR46F.1, Or46b, OR46F, Or46F.1, Or46F.2;
GN ORFNames=CG33478;
OS Drosophila melanogaster (Fruit fly).
OC Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Hexapoda; Insecta; Pterygota;
OC Neoptera; Endopterygota; Diptera; Brachycera; Muscomorpha; Ephydroidea;
OC Drosophilidae; Drosophila; Sophophora.
OX NCBI_TaxID=7227;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=10458908; DOI=10.1006/geno.1999.5894;
RA Gao Q., Chess A.;
RT "Identification of candidate Drosophila olfactory receptors from genomic
RT DNA sequence.";
RL Genomics 60:31-39(1999).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Berkeley;
RX PubMed=10731132; DOI=10.1126/science.287.5461.2185;
RA Adams M.D., Celniker S.E., Holt R.A., Evans C.A., Gocayne J.D.,
RA Amanatides P.G., Scherer S.E., Li P.W., Hoskins R.A., Galle R.F.,
RA George R.A., Lewis S.E., Richards S., Ashburner M., Henderson S.N.,
RA Sutton G.G., Wortman J.R., Yandell M.D., Zhang Q., Chen L.X., Brandon R.C.,
RA Rogers Y.-H.C., Blazej R.G., Champe M., Pfeiffer B.D., Wan K.H., Doyle C.,
RA Baxter E.G., Helt G., Nelson C.R., Miklos G.L.G., Abril J.F., Agbayani A.,
RA An H.-J., Andrews-Pfannkoch C., Baldwin D., Ballew R.M., Basu A.,
RA Baxendale J., Bayraktaroglu L., Beasley E.M., Beeson K.Y., Benos P.V.,
RA Berman B.P., Bhandari D., Bolshakov S., Borkova D., Botchan M.R., Bouck J.,
RA Brokstein P., Brottier P., Burtis K.C., Busam D.A., Butler H., Cadieu E.,
RA Center A., Chandra I., Cherry J.M., Cawley S., Dahlke C., Davenport L.B.,
RA Davies P., de Pablos B., Delcher A., Deng Z., Mays A.D., Dew I.,
RA Dietz S.M., Dodson K., Doup L.E., Downes M., Dugan-Rocha S., Dunkov B.C.,
RA Dunn P., Durbin K.J., Evangelista C.C., Ferraz C., Ferriera S.,
RA Fleischmann W., Fosler C., Gabrielian A.E., Garg N.S., Gelbart W.M.,
RA Glasser K., Glodek A., Gong F., Gorrell J.H., Gu Z., Guan P., Harris M.,
RA Harris N.L., Harvey D.A., Heiman T.J., Hernandez J.R., Houck J., Hostin D.,
RA Houston K.A., Howland T.J., Wei M.-H., Ibegwam C., Jalali M., Kalush F.,
RA Karpen G.H., Ke Z., Kennison J.A., Ketchum K.A., Kimmel B.E., Kodira C.D.,
RA Kraft C.L., Kravitz S., Kulp D., Lai Z., Lasko P., Lei Y., Levitsky A.A.,
RA Li J.H., Li Z., Liang Y., Lin X., Liu X., Mattei B., McIntosh T.C.,
RA McLeod M.P., McPherson D., Merkulov G., Milshina N.V., Mobarry C.,
RA Morris J., Moshrefi A., Mount S.M., Moy M., Murphy B., Murphy L.,
RA Muzny D.M., Nelson D.L., Nelson D.R., Nelson K.A., Nixon K., Nusskern D.R.,
RA Pacleb J.M., Palazzolo M., Pittman G.S., Pan S., Pollard J., Puri V.,
RA Reese M.G., Reinert K., Remington K., Saunders R.D.C., Scheeler F.,
RA Shen H., Shue B.C., Siden-Kiamos I., Simpson M., Skupski M.P., Smith T.J.,
RA Spier E., Spradling A.C., Stapleton M., Strong R., Sun E., Svirskas R.,
RA Tector C., Turner R., Venter E., Wang A.H., Wang X., Wang Z.-Y.,
RA Wassarman D.A., Weinstock G.M., Weissenbach J., Williams S.M., Woodage T.,
RA Worley K.C., Wu D., Yang S., Yao Q.A., Ye J., Yeh R.-F., Zaveri J.S.,
RA Zhan M., Zhang G., Zhao Q., Zheng L., Zheng X.H., Zhong F.N., Zhong W.,
RA Zhou X., Zhu S.C., Zhu X., Smith H.O., Gibbs R.A., Myers E.W., Rubin G.M.,
RA Venter J.C.;
RT "The genome sequence of Drosophila melanogaster.";
RL Science 287:2185-2195(2000).
RN [3]
RP GENOME REANNOTATION.
RC STRAIN=Berkeley;
RX PubMed=12537572; DOI=10.1186/gb-2002-3-12-research0083;
RA Misra S., Crosby M.A., Mungall C.J., Matthews B.B., Campbell K.S.,
RA Hradecky P., Huang Y., Kaminker J.S., Millburn G.H., Prochnik S.E.,
RA Smith C.D., Tupy J.L., Whitfield E.J., Bayraktaroglu L., Berman B.P.,
RA Bettencourt B.R., Celniker S.E., de Grey A.D.N.J., Drysdale R.A.,
RA Harris N.L., Richter J., Russo S., Schroeder A.J., Shu S.Q., Stapleton M.,
RA Yamada C., Ashburner M., Gelbart W.M., Rubin G.M., Lewis S.E.;
RT "Annotation of the Drosophila melanogaster euchromatic genome: a systematic
RT review.";
RL Genome Biol. 3:RESEARCH0083.1-RESEARCH0083.22(2002).
RN [4]
RP IDENTIFICATION, AND TISSUE SPECIFICITY.
RX PubMed=10069338; DOI=10.1016/s0896-6273(00)81093-4;
RA Clyne P.J., Warr C.G., Freeman M.R., Lessing D., Kim J., Carlson J.R.;
RT "A novel family of divergent seven-transmembrane proteins: candidate
RT odorant receptors in Drosophila.";
RL Neuron 22:327-338(1999).
RN [5]
RP TISSUE SPECIFICITY.
RX PubMed=10943836; DOI=10.1016/s0092-8674(00)00021-0;
RA Vosshall L.B., Wong A.M., Axel R.;
RT "An olfactory sensory map in the fly brain.";
RL Cell 102:147-159(2000).
RN [6]
RP IDENTIFICATION OF ALTERNATIVE SPLICING.
RX PubMed=14608037; DOI=10.1073/pnas.2335847100;
RA Robertson H.M., Warr C.G., Carlson J.R.;
RT "Molecular evolution of the insect chemoreceptor gene superfamily in
RT Drosophila melanogaster.";
RL Proc. Natl. Acad. Sci. U.S.A. 100:14537-14542(2003).
CC -!- FUNCTION: Odorant receptor which mediates acceptance or avoidance
CC behavior, depending on its substrates. The odorant receptor repertoire
CC encodes a large collection of odor stimuli that vary widely in
CC identity, intensity, and duration. May form a complex with Orco to form
CC odorant-sensing units, providing sensitive and prolonged odorant
CC signaling and calcium permeability (By similarity). {ECO:0000250}.
CC -!- SUBUNIT: Interacts with Orco. Complexes exist early in the endomembrane
CC system in olfactory sensory neurons (OSNs), coupling these complexes to
CC the conserved ciliary trafficking pathway (By similarity).
CC {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000250}; Multi-pass membrane
CC protein {ECO:0000250}.
CC -!- ALTERNATIVE PRODUCTS:
CC Event=Alternative splicing; Named isoforms=2;
CC Name=A;
CC IsoId=P81919-1; Sequence=Displayed;
CC Name=B;
CC IsoId=Q9V3N2-1; Sequence=External;
CC -!- TISSUE SPECIFICITY: Isoform A is expressed in a subset of 17 olfactory
CC receptor neurons in the maxillary palp. {ECO:0000269|PubMed:10069338,
CC ECO:0000269|PubMed:10943836}.
CC -!- MISCELLANEOUS: The atypical heteromeric and topological design of the
CC odorant receptors appears to be an insect-specific solution for odor
CC recognition, making the OR/Orco complex an attractive target for the
CC development of highly selective insect repellents to disrupt olfactory-
CC mediated host-seeking behaviors of insect disease vectors. Odor-evoked
CC OR currents are independent of known G-protein-coupled second messenger
CC pathways.
CC -!- SIMILARITY: Belongs to the insect chemoreceptor superfamily.
CC Heteromeric odorant receptor channel (TC 1.A.69) family. Or2a
CC subfamily. {ECO:0000305}.
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DR EMBL; AE013599; AAF58834.3; -; Genomic_DNA.
DR RefSeq; NP_995794.1; NM_206072.2. [P81919-1]
DR AlphaFoldDB; P81919; -.
DR SMR; P81919; -.
DR TCDB; 1.A.69.1.1; the heteromeric odorant receptor channel (horc) family.
DR PRIDE; P81919; -.
DR EnsemblMetazoa; FBtr0088330; FBpp0089407; FBgn0026388. [P81919-1]
DR GeneID; 2768728; -.
DR CTD; 2768728; -.
DR FlyBase; FBgn0026388; Or46a.
DR VEuPathDB; VectorBase:FBgn0026388; -.
DR GeneTree; ENSGT00530000064740; -.
DR OMA; PATCIID; -.
DR BioGRID-ORCS; 2768728; 0 hits in 1 CRISPR screen.
DR GenomeRNAi; 2768728; -.
DR Proteomes; UP000000803; Chromosome 2R.
DR Bgee; FBgn0026388; Expressed in maxillary palp olfactory receptor neuron (Drosophila) and 2 other tissues.
DR ExpressionAtlas; P81919; differential.
DR Genevisible; P81919; DM.
DR GO; GO:0032590; C:dendrite membrane; ISS:FlyBase.
DR GO; GO:0016021; C:integral component of membrane; ISM:FlyBase.
DR GO; GO:0005886; C:plasma membrane; IBA:GO_Central.
DR GO; GO:0005549; F:odorant binding; ISS:FlyBase.
DR GO; GO:0004984; F:olfactory receptor activity; IMP:FlyBase.
DR GO; GO:0050911; P:detection of chemical stimulus involved in sensory perception of smell; IMP:FlyBase.
DR GO; GO:0007608; P:sensory perception of smell; ISS:FlyBase.
DR GO; GO:0007165; P:signal transduction; IEA:UniProtKB-KW.
DR InterPro; IPR004117; 7tm6_olfct_rcpt.
DR PANTHER; PTHR21137; PTHR21137; 1.
DR Pfam; PF02949; 7tm_6; 1.
PE 2: Evidence at transcript level;
KW Alternative splicing; Cell membrane; Glycoprotein; Membrane; Olfaction;
KW Receptor; Reference proteome; Sensory transduction; Transducer;
KW Transmembrane; Transmembrane helix.
FT CHAIN 1..381
FT /note="Odorant receptor 46a, isoform A"
FT /id="PRO_0000174248"
FT TOPO_DOM 1..37
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255"
FT TRANSMEM 38..58
FT /note="Helical; Name=1"
FT /evidence="ECO:0000255"
FT TOPO_DOM 59..65
FT /note="Extracellular"
FT /evidence="ECO:0000255"
FT TRANSMEM 66..86
FT /note="Helical; Name=2"
FT /evidence="ECO:0000255"
FT TOPO_DOM 87..127
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255"
FT TRANSMEM 128..148
FT /note="Helical; Name=3"
FT /evidence="ECO:0000255"
FT TOPO_DOM 149..170
FT /note="Extracellular"
FT /evidence="ECO:0000255"
FT TRANSMEM 171..191
FT /note="Helical; Name=4"
FT /evidence="ECO:0000255"
FT TOPO_DOM 192..255
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255"
FT TRANSMEM 256..276
FT /note="Helical; Name=5"
FT /evidence="ECO:0000255"
FT TOPO_DOM 277..287
FT /note="Extracellular"
FT /evidence="ECO:0000255"
FT TRANSMEM 288..308
FT /note="Helical; Name=6"
FT /evidence="ECO:0000255"
FT TOPO_DOM 309..355
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255"
FT TRANSMEM 356..376
FT /note="Helical; Name=7"
FT /evidence="ECO:0000255"
FT TOPO_DOM 377..381
FT /note="Extracellular"
FT /evidence="ECO:0000255"
FT CARBOHYD 59
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
SQ SEQUENCE 381 AA; 44068 MW; 8A2AB426B08F95FA CRC64;
MSKGVEIFYK GQKAFLNILS LWPQIERRWR IIHQVNYVHV IVFWVLLFDL LLVLHVMANL
SYMSEVVKAI FILATSAGHT TKLLSIKANN VQMEELFRRL DNEEFRPRGA NEELIFAAAC
ERSRKLRDFY GALSFAALSM ILIPQFALDW SHLPLKTYNP LGENTGSPAY WLLYCYQCLA
LSVSCITNIG FDSLCSSLFI FLKCQLDILA VRLDKIGRLI TTSGGTVEQQ LKENIRYHMT
IVELSKTVER LLCKPISVQI FCSVLVLTAN FYAIAVLSDE RLELFKYVTY QACMLIQIFI
LCYYAGEVTQ RSLDLPHELY KTSWVDWDYR SRRIALLFMQ RLHSTLRIRT LNPSLGFDLM
LFSSIVNCSY SYFALLKRVN S
