Reviewed, UniProtKB/Swiss-Prot Q9I816 (OR19A_DROME)

Names and origin

Protein names

Recommended name:
    Putative odorant receptor 19a

Gene names

Name:	Or19a
ORF Names:	CG18859

Organism

Drosophila melanogaster (Fruit fly) [Complete proteome]

Taxonomic identifier

7227 [NCBI]

Taxonomic lineage

Eukaryota › Metazoa › Arthropoda › Hexapoda › Insecta › Pterygota › Neoptera › Endopterygota › Diptera › Brachycera › Muscomorpha › Ephydroidea › Drosophilidae › Drosophila › Sophophora

Protein attributes

Sequence length	387 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Inferred from homology.

General annotation (Comments)

Function	Complexes with Or83b to form odorant-sensing units, providing sensitive and prolonged odorant signaling and calcium permeability. They are necessary and sufficient to promote functional reconstitution of odor-evoked signaling in sensory neurons that normally respond only to carbon dioxide By similarity.
Subunit structure	Interacts with Or83b. Complexes exist early in the endomembrane system in olfactory sensory neurons (OSNs), coupling these complexes to the conserved ciliary trafficking pathway By similarity.
Subcellular location	Cell membrane; Multi-pass membrane protein By similarity.
Miscellaneous	The atypical heteromeric and topological design of the odorant receptors appears to be an insect-specific solution for odor recognition, making the OR/Or83b complex an attractive target for the development of highly selective insect repellents to disrupt olfactory-mediated host-seeking behaviors of insect disease vectors. Odor-evoked OR currents are independent of known G-protein-coupled second messenger pathways.
Sequence similarities	Belongs to the odorant-gated ionic channel family.

Ontologies

Keywords
Biological process	Olfaction Sensory transduction
Cellular component	Cell membrane Membrane
Domain	Transmembrane
Molecular function	G-protein coupled receptor Receptor Transducer
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	G-protein coupled receptor protein signaling pathway Inferred from electronic annotation. Source: UniProtKB-KW response to stimulus Inferred from electronic annotation. Source: UniProtKB-KW sensory perception of smell Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	integral to membrane Inferred from electronic annotation. Source: UniProtKB-KW plasma membrane Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	odorant binding Inferred from electronic annotation. Source: InterPro olfactory receptor activity Inferred from direct assay. Source: FlyBase
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 387	387	Putative odorant receptor 19a		PRO_0000174230
Regions
	Topological domain	1 – 40	40	Cytoplasmic Potential
	Transmembrane	41 – 61	21	1 Potential
	Topological domain	62 – 71	10	Extracellular Potential
	Transmembrane	72 – 92	21	2 Potential
	Topological domain	93 – 127	35	Cytoplasmic Potential
	Transmembrane	128 – 148	21	3 Potential
	Topological domain	149 – 171	23	Extracellular Potential
	Transmembrane	172 – 192	21	4 Potential
	Topological domain	193 – 254	62	Cytoplasmic Potential
	Transmembrane	255 – 275	21	5 Potential
	Topological domain	276 – 285	10	Extracellular Potential
	Transmembrane	286 – 306	21	6 Potential
	Topological domain	307 – 336	30	Cytoplasmic Potential
	Transmembrane	337 – 357	21	7 Potential
	Topological domain	358 – 387	30	Extracellular Potential

Sequences

	Sequence		Length	Mass (Da)
	Q9I816-1 [UniParc]. Last modified June 1, 2001. Version 2. Checksum: 132D2FCACB345017	FASTA	387	44,228
	10 20 30 40 50 60 MDISKVDSTR ALVNHWRIFR IMGIHPPGKR TFWGRHYTAY SMVWNVTFHI CIWVSFSVNL 70 80 90 100 110 120 LQSNSLETFC ESLCVTMPHT LYMLKLINVR RMRGQMISSH WLLRLLDKRL GCDDERQIIM 130 140 150 160 170 180 AGIERAEFIF RTIFRGLACT VVLGIIYISA SSEPTLMYPT WIPWNWRDST SAYLATAMLH 190 200 210 220 230 240 TTALMANATL VLNLSSYPGT YLILVSVHTK ALALRVSKLG YGAPLPAVRM QAILVGYIHD 250 260 270 280 290 300 HQIILRLFKS LERSLSMTCF LQFFSTACAQ CTICYFLLFG NVGIMRFMNM LFLLVILTTE 310 320 330 340 350 360 TLLLCYTAEL PCKEGESLLT AVYSCNWLSQ SVNFRRLLLL MLARCQIPMI LVSGVIVPIS 370 380 MKTFTVMIKG AYTMLTLLNE IRKTSLE

References

	« Hide 'large scale' referencesShow 'large scale' references »
[1]	"The genome sequence of Drosophila melanogaster." Adams M.D., Celniker S.E., Holt R.A., Evans C.A., Gocayne J.D., Amanatides P.G., Scherer S.E., Li P.W., Hoskins R.A., Galle R.F., George R.A., Lewis S.E., Richards S., Ashburner M., Henderson S.N., Sutton G.G., Wortman J.R., Yandell M.D. , Zhang Q., Chen L.X., Brandon R.C., Rogers Y.-H.C., Blazej R.G., Champe M., Pfeiffer B.D., Wan K.H., Doyle C., Baxter E.G., Helt G., Nelson C.R., Miklos G.L.G., Abril J.F., Agbayani A., An H.-J., Andrews-Pfannkoch C., Baldwin D., Ballew R.M., Basu A., Baxendale J., Bayraktaroglu L., Beasley E.M., Beeson K.Y., Benos P.V., Berman B.P., Bhandari D., Bolshakov S., Borkova D., Botchan M.R., Bouck J., Brokstein P., Brottier P., Burtis K.C., Busam D.A., Butler H., Cadieu E., Center A., Chandra I., Cherry J.M., Cawley S., Dahlke C., Davenport L.B., Davies P., de Pablos B., Delcher A., Deng Z., Mays A.D., Dew I., Dietz S.M., Dodson K., Doup L.E., Downes M., Dugan-Rocha S., Dunkov B.C., Dunn P., Durbin K.J., Evangelista C.C., Ferraz C., Ferriera S., Fleischmann W., Fosler C., Gabrielian A.E., Garg N.S., Gelbart W.M., Glasser K., Glodek A., Gong F., Gorrell J.H., Gu Z., Guan P., Harris M., Harris N.L., Harvey D.A., Heiman T.J., Hernandez J.R., Houck J., Hostin D., Houston K.A., Howland T.J., Wei M.-H., Ibegwam C., Jalali M., Kalush F., Karpen G.H., Ke Z., Kennison J.A., Ketchum K.A., Kimmel B.E., Kodira C.D., Kraft C.L., Kravitz S., Kulp D., Lai Z., Lasko P., Lei Y., Levitsky A.A., Li J.H., Li Z., Liang Y., Lin X., Liu X., Mattei B., McIntosh T.C., McLeod M.P., McPherson D., Merkulov G., Milshina N.V., Mobarry C., Morris J., Moshrefi A., Mount S.M., Moy M., Murphy B., Murphy L., Muzny D.M., Nelson D.L., Nelson D.R., Nelson K.A., Nixon K., Nusskern D.R., Pacleb J.M., Palazzolo M., Pittman G.S., Pan S., Pollard J., Puri V., Reese M.G., Reinert K., Remington K., Saunders R.D.C., Scheeler F., Shen H., Shue B.C., Siden-Kiamos I., Simpson M., Skupski M.P., Smith T.J., Spier E., Spradling A.C., Stapleton M., Strong R., Sun E., Svirskas R., Tector C., Turner R., Venter E., Wang A.H., Wang X., Wang Z.-Y., Wassarman D.A., Weinstock G.M., Weissenbach J., Williams S.M., Woodage T., Worley K.C., Wu D., Yang S., Yao Q.A., Ye J., Yeh R.-F., Zaveri J.S., Zhan M., Zhang G., Zhao Q., Zheng L., Zheng X.H., Zhong F.N., Zhong W., Zhou X., Zhu S.C., Zhu X., Smith H.O., Gibbs R.A., Myers E.W., Rubin G.M., Venter J.C. Science 287:2185-2195(2000) [PubMed: 10731132] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Berkeley.
[2]	"Annotation of the Drosophila melanogaster euchromatic genome: a systematic review." Misra S., Crosby M.A., Mungall C.J., Matthews B.B., Campbell K.S., Hradecky P., Huang Y., Kaminker J.S., Millburn G.H., Prochnik S.E., Smith C.D., Tupy J.L., Whitfield E.J., Bayraktaroglu L., Berman B.P., Bettencourt B.R., Celniker S.E., de Grey A.D.N.J. , Drysdale R.A., Harris N.L., Richter J., Russo S., Schroeder A.J., Shu S.Q., Stapleton M., Yamada C., Ashburner M., Gelbart W.M., Rubin G.M., Lewis S.E. Genome Biol. 3:RESEARCH0083.1-RESEARCH0083.22(2002) [PubMed: 12537572] [Abstract] Cited for: GENOME REANNOTATION.

Cross-references

Sequence databases
EMBLGenBankDDBJ	AE014298 Genomic DNA. Translation: AAG22450.2.
RefSeq	NP_525013.2.
UniGene	Dm.27529
3D structure databases
ModBase	Search...
Genome annotation databases
Ensembl	FBgn0041626. Drosophila melanogaster. [Contig view]
GeneID	59214.
KEGG	dme:Dmel_CG18859.
Organism-specific databases
FlyBase	FBgn0041626. Or19a.
Phylogenomic databases
HOGENOM	Q9I816.
Enzyme and pathway databases
BioCyc	DMEL-XXX-02:DMEL-XXX-02-002709-MON.
Gene expression databases
GermOnline	CG18859. Drosophila melanogaster.
Family and domain databases
InterPro	IPR004117. 7tm6_olfct_rcpt. [Graphical view]
PANTHER	PTHR21137. 7tm6_olfct_rcpt. 1 hit.
Pfam	PF02949. 7tm_6. 1 hit. [Graphical view]
ProtoNet	Search...
Other Resources
NextBio	841649.

Entry information

Entry name

OR19A_DROME

Accession

Primary (citable) accession number: Q9I816

Entry history

Integrated into UniProtKB/Swiss-Prot:	June 1, 2001
Last sequence update:	June 1, 2001
Last modified:	June 16, 2009
This is version 63 of the entry and version 2 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

Drosophila annotation project