Claims
- 1. An isolated nucleic acid encoding a polypeptide present in an insect odorant receptor which polypeptide comprises seven transmembrane domains and a C-terminal domain, wherein one of the seven transmembrane domains is located within the polypeptide at a position adjoining the C-terminal domain and wherein this seventh transmembrane domain and the adjoining C-terminal domain together comprise consecutive amino acids the sequence of which is as follows:
- 2. The isolated nucleic acid of claim 1, wherein the seventh transmembrane domain and the adjoining C-terminal domain together comprise consecutive amino acids the sequence of which is as follows:
- 3. The isolated nucleic acid of claim 2, wherein the seventh transmembrane domain and the adjoining C-terminal domain together comprise consecutive amino acids the sequence of which is as follows:
- 4. The isolated nucleic acid of claim 1, wherein the seventh transmembrane domain and the adjoining C-terminal domain together comprise consecutive amino acids the sequence of which is as follows:
- 5. An isolated nucleic acid encoding a polypeptide present in an insect odorant receptor, wherein the polypeptide is selected from the group consisting of polypeptides comprising consecutive amino acids the sequence of which is one of the following:
(a) SEQ ID NO: 2, (b) SEQ ID NO: 4, (c) SEQ ID NO: 6, (d) SEQ ID NO: 8, (e) SEQ ID NO: 10, (f) SEQ ID NO: 12, (g) SEQ ID NO: 14, (h) SEQ ID NO: 16, (i) SEQ ID NO: 18, (j) SEQ ID NO: 20, (k) SEQ ID NO: 22, (l) SEQ ID NO: 24, (m) SEQ ID NO: 26, (n) SEQ ID NO: 28, (o) SEQ ID NO: 30, (p) SEQ ID NO: 32, (q) SEQ ID NO: 34, (r) SEQ ID NO: 36, (s) SEQ ID NO: 38, (t) SEQ ID NO: 40, (u) SEQ ID NO: 42, (v) SEQ ID NO: 44, (w) SEQ ID NO: 46, (x) SEQ ID NO: 48, (y) SEQ ID NO: 50, (z) SEQ ID NO: 52, (aa) SEQ ID NO: 54, (bb) SEQ ID NO: 56, (cc) SEQ ID NO: 58, (dd) SEQ ID NO: 60, (ee) SEQ ID NO: 62, (ff) SEQ ID NO: 64, (gg) SEQ ID NO: 66, (hh) SEQ ID NO: 68, (ii) SEQ ID NO: 70, (jj) SEQ ID NO: 72, (kk) SEQ ID NO: 74, (ll) SEQ ID NO: 76, (mm) SEQ ID NO: 78, (nn) SEQ ID NO: 80, (oo) SEQ ID NO: 82, (pp) SEQ ID NO: 84, (qq) SEQ ID NO: 86, (rr) SEQ ID NO: 88, (ss) SEQ ID NO: 90, (tt) SEQ ID NO: 92, (uu) SEQ ID NO: 94, (vv) SEQ ID NO: 96, (ww) SEQ ID NO: 98, (xx) SEQ ID NO: 100, (yy) SEQ ID NO: 102, (zz) SEQ ID NO: 104,
(aaa) SEQ ID NO: 106, or (bbb) a polypeptide which shares greater than 25% amino acid identity with any one of the polypeptides of (a)-(aaa), and comprises a transmembrane domain and an adjoining C-terminal domain which together comprise consecutive amino acids the sequence of which is as follows: 13(SEQ ID NO: 107)-(F, Y, L, A, T, S or C)-(P, I, M, V, T, L, Q, Sor H)-(F, Y, I, S, L, C, M or V)-(C, Y, T, S, L orA)-(Y, N, F, M, I, L, K, S, H or T)-(X)20-W-;wherein each X in (X)20 represents an amino acid and the identity of each X is independent of the identity of any other X.
- 6. The isolated nucleic acid of claim 5, wherein the nucleic acid encodes a polypeptide which shares greater than 35% amino acid identity with any one of the polypeptides of (a)-(aaa).
- 7. The isolated nucleic acid of claim 6, wherein the nucleic acid encodes a polypeptide which shares greater than 45% amino acid identity with any one of the polypeptides of (a)-(aaa).
- 8. The isolated nucleic acid of claim 7, wherein the nucleic acid encodes a polypeptide which shares greater than 55% amino acid identity with any one of the polypeptides of (a)-(aaa).
- 9. The isolated nucleic acid of claim 8, wherein the nucleic acid encodes a polypeptide which shares greater than 65% amino acid identity with any one of the polypeptides of (a)-(aaa).
- 10. The isolated nucleic acid of claim 9, wherein the nucleic acid encodes a polypeptide which shares greater than 75% amino acid identity with any one of the polypeptides of (a)-(aaa).
- 11. An isolated nucleic acid encoding a polypeptide present in an insect odorant receptor, wherein the nucleic acid hybridizes under high stringency to a complement of a nucleic acid of claim 5.
- 12. An isolated nucleic acid encoding a polypeptide present in an insect odorant receptor, wherein the polypeptide comprises consecutive amino acids having a sequence identical to that set forth for DORA45 in SEQ ID NO: 104.
- 13. An isolated nucleic acid encoding a polypeptide present in an insect odorant receptor, wherein the nucleic acid comprises:
(a) a nucleic acid sequence given in any one of SEQ ID NOs: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101, 103, or 105; or (b) a nucleic acid sequence degenerate to a sequence of (a) as a result of the genetic code.
- 14. The isolated nucleic acid of claim 13, wherein the insect odorant receptor comprises seven transmembrane domains.
- 15. The isolated nucleic acid of any one of claim 1, 5 or 11-13, wherein the nucleic acid is DNA or RNA.
- 16. The isolated nucleic acid of claim 15, wherein the DNA is cDNA, genomic DNA, or synthetic DNA.
- 17. The isolated nucleic acid of any one of claim 1, 5 or 11-13, wherein the nucleic acid encodes a Drosophila odorant receptor.
- 18. A nucleic acid comprising at least 12 nucleotides which specifically hybridizes with the isolated nucleic acid of any one of claim 1, 5 or 11-13.
- 19. The nucleic acid of claim 18, wherein the nucleic acid is DNA, cDNA, genomic DNA, synthetic DNA or RNA.
- 20. A vector which comprises the isolated nucleic acid of any one of claim 1, 5 or 11-13.
- 21. The vector of claim 20, wherein the isolated nucleic acid is operatively linked to a regulatory element.
- 22. A plasmid which comprises the vector of claim 20.
- 23. A host vector system for production of a polypeptide having the biological activity of an insect odorant receptor, which comprises the vector of claim 20 and a suitable host.
- 24. The host vector system of claim 23, wherein the suitable host is a bacterial cell, a yeast cell, an insect cell, or an animal cell.
- 25. A method of producing a polypeptide having the biological activity of an insect odorant receptor which comprises growing the host vector system of claim 23 under conditions permitting production of the polypeptide and recovering the polypeptide so produced.
- 26. A purified insect odorant receptor encoded by the isolated nucleic acid of any one of claim 1, 5 or 11-13.
- 27. An antibody which specifically binds to an insect odorant receptor encoded by the isolated nucleic acid of any one of claim 1, 5 or 11-13.
- 28. An antibody which competitively inhibits the binding of the antibody of claim 27.
- 29. The antibody of claim 27, wherein the antibody is a monoclonal antibody.
- 30. The antibody of claim 28, wherein the antibody is a monoclonal antibody.
- 31. A method for identifying a cDNA insert encoding an insect odorant receptor which comprises:
(a) generating a cDNA library comprising clones carrying cDNA inserts from antennal or maxillary palp sensory neurons from an insect; (b) hybridizing nucleic acids of the clones from the cDNA libraries generated in step (a) with a probe which comprises (i) a nucleic acid sequence given in any one of SEQ ID NOs: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101, 103, or 105; or (ii) a nucleic acid sequence degenerate to a sequence of (i) as a result of the genetic code; or (iii) a portion of a nucleic acid sequence of (i) or (ii) which encodes consecutive amino acids having the sequence set forth in SEQ ID NO: 107; and (c) isolating the resulting hybridized nucleic acids so as to thereby identify the cDNA insert encoding the insect odorant receptor.
- 32. A method for identifying a cDNA insert encoding an odorant receptor from an insect which comprises:
(a) generating cDNA libraries which contain clones carrying cDNA inserts from the insect; (b) contacting the cDNA libraries containing the clones generated in step (a) with the nucleic acid of claim 18 under conditions permitting hybridization of the clones and the nucleic acid; (c) selecting clones which hybridized with the nucleic acid; and (d) isolating the hybridized clones which contain the cDNA inserts so as to thereby identify inserts encoding the odorant receptor from the insect.
- 33. The cDNA insert identified by the method of claim 31 or claim 32.
- 34. A method for obtaining a nucleic acid encoding an odorant receptor from an insect which comprises:
(a) contacting a sample containing nucleic acid of insect origin with polymerase chain reaction primers which specifically hybridize with nucleic acid which encodes an amino acid sequence set forth in SEQ ID NO: 107 under appropriate conditions permitting hybridization of the primers to the nucleic acid to produce a hybridization product; (b) amplifying the resulting hybridization product using a polymerase chain reaction; and (c) isolating the amplified molecules, thereby obtaining the nucleic acid encoding the odorant receptor from the insect.
- 35. A method of transforming a cell which comprises transfecting a host cell with the vector of claim 20.
- 36. A transformed cell produced by the method of claim 35.
- 37. The transformed cell of claim 36, wherein prior to being transfected with the vector the host cell does not express an insect odorant receptor.
- 38. The transformed cell of claim 36, wherein prior to being transfected with the vector the host cell does express an insect odorant receptor.
- 39. A method of identifying a compound which specifically binds to an insect odorant receptor which comprises contacting the transformed cell of claim 36, or a membrane fraction from said cell, with the compound under conditions permitting binding of the compound to the odorant receptor, detecting the presence of any such compound specifically bound to the receptor, and thereby identifying the compound as a compound which specifically binds to an insect odorant receptor.
- 40. A method of identifying a compound which specifically binds to an insect odorant receptor which comprises contacting the purified odorant receptor of claim 26 with the compound under conditions permitting binding of the compound to the purified odorant receptor, detecting the presence of any such compound specifically bound to the receptor, and thereby identifying the compound as a compound which specifically binds to an insect odorant receptor.
- 41. A method of claim 40, wherein the purified odorant receptor is embedded in a lipid bilayer.
- 42. A method of identifying a compound which activates an insect odorant receptor which comprises contacting the transformed cell of claim 36, or a membrane fraction from said cell, with the compound under conditions permitting activation of the odorant receptor, detecting activation of the receptor, and thereby identifying the compound as a compound which activates an insect odorant receptor.
- 43. A method of identifying a compound which activates an insect odorant receptor which comprises contacting the purified odorant receptor of claim 26 with the compound under conditions permitting activation of the odorant receptor, detecting activation of the receptor, and thereby identify the compound as a compound which activates an insect odorant receptor.
- 44. The method of claim 43, wherein the purified insect odorant receptor is embedded in a lipid bilayer.
- 45. A method of identifying a compound which inhibits the activity of an insect odorant receptor which comprises contacting the transformed cell of claim 36, or a membrane fraction from said cell, with the compound under conditions permitting inhibition of the activity of the odorant receptor, detecting inhibition of the activity of the receptor, and thereby identifying the compound as a compound which inhibits the activity of an insect odorant receptor.
- 46. A method of identifying a compound which inhibits the activity of an insect odorant receptor which comprises contacting the purified insect odorant receptor of claim 26 with the compound under conditions permitting inhibition of the activity of the odorant receptor, detecting inhibition of the activity of the receptor, and thereby identifying the compound as a compound which inhibits the activity of an insect odorant receptor.
- 47. The method of claim 46, wherein the purified insect odorant receptor is embedded in a lipid bilayer.
- 48. The method of claim 39, 40, 42, 43, 45 or 46, wherein the compound is not previously known to bind to, activate, or inhibit the activity of an insect odorant receptor.
- 49. A compound identified by the method of claim 48.
- 50. The compound of claim 49, wherein the compound is an alarm odorant ligand or an odorant ligand associated with fertility of the insect.
- 51. A method of controlling a population of an insect in an area which comprises identifying a compound by the method of claim 39, 40, 42, 43, 45 or 46, and spraying the area with the compound.
- 52. The method of claim 51, wherein the compound is an alarm odorant ligand or a ligand associated with fertility of the insect.
- 53. A method of controlling a population of an insect which comprises using a compound identified by the method of claim 39, 40, 42, 43, 45 or 46, wherein the compound interferes with an interaction between an odorant ligand and an odorant receptor, which interaction is associated with fertility of the insect.
- 54. A method of preparing a composition which comprises identifying a compound by the method of claim 39, 40, 42, 43, 45 or 46; recovering the compound free of any insect odorant receptor; and admixing a carrier.
Parent Case Info
[0001] This application is a continuation of U.S. Ser. No. 09/932,227, filed Aug. 17, 2001, which is a continuation of PCT International Application No. PCT/US00/04995, filed Feb. 25, 2000, which was a continuation-in-part of, and claimed priority of, U.S. Ser. No. 09/257,706, filed Feb. 25, 1999, now abandoned, the contents of all of which are hereby incorporated by reference into the subject application.
Government Interests
[0002] The invention disclosed herein was made with Government support under NIH:NIMH, 5P50, MH50733-05 and NINDS, NS29832-07 from the Department of Health and Human Services. Accordingly, the U.S. Government has certain rights in this invention.
Continuations (2)
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Number |
Date |
Country |
Parent |
09932227 |
Aug 2001 |
US |
Child |
10183708 |
Jun 2002 |
US |
Parent |
PCT/US00/04995 |
Feb 2000 |
US |
Child |
09932227 |
Aug 2001 |
US |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
09257706 |
Feb 1999 |
US |
Child |
PCT/US00/04995 |
Feb 2000 |
US |