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Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1993 Jul 1;90(13):6360–6364. doi: 10.1073/pnas.90.13.6360

Functional specificity of the Antennapedia homeodomain.

K Furukubo-Tokunaga 1, S Flister 1, W J Gehring 1
PMCID: PMC46928  PMID: 8101003

Abstract

The segmental identity in animal development is determined by a set of homeotic selector genes clustered in the invertebrate HOM or vertebrate Hox homeo box complexes. These genes encode proteins with very similar homeodomains and highly diverged N- and C-terminal sequences. The Antennapedia (Antp) homeodomain, for instance, differs at only five amino acid positions from that of Sex combs reduced (Scr) protein. Using a heat shock assay in which chimeric Antp-Scr proteins are expressed ectopically in Drosophila, we have shown that the functional specificity of the Antp protein is determined by the four specific amino acids located in the flexible N-terminal arm of the homeodomain. The three-dimensional structure of the Antp homeodomain-DNA complex shows that this N-terminal arm is located in the minor groove of the DNA, suggesting that the functional specificity is determined either by slight differences in DNA binding and/or by selective interactions with other transcription factor(s).

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Selected References

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  1. Dranginis A. M. Binding of yeast a1 and alpha 2 as a heterodimer to the operator DNA of a haploid-specific gene. Nature. 1990 Oct 18;347(6294):682–685. doi: 10.1038/347682a0. [DOI] [PubMed] [Google Scholar]
  2. Gibson G., Schier A., LeMotte P., Gehring W. J. The specificities of Sex combs reduced and Antennapedia are defined by a distinct portion of each protein that includes the homeodomain. Cell. 1990 Sep 21;62(6):1087–1103. doi: 10.1016/0092-8674(90)90386-s. [DOI] [PubMed] [Google Scholar]
  3. Herskowitz I. A regulatory hierarchy for cell specialization in yeast. Nature. 1989 Dec 14;342(6251):749–757. doi: 10.1038/342749a0. [DOI] [PubMed] [Google Scholar]
  4. Kaufman T. C., Lewis R., Wakimoto B. Cytogenetic Analysis of Chromosome 3 in DROSOPHILA MELANOGASTER: The Homoeotic Gene Complex in Polytene Chromosome Interval 84a-B. Genetics. 1980 Jan;94(1):115–133. doi: 10.1093/genetics/94.1.115. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Kissinger C. R., Liu B. S., Martin-Blanco E., Kornberg T. B., Pabo C. O. Crystal structure of an engrailed homeodomain-DNA complex at 2.8 A resolution: a framework for understanding homeodomain-DNA interactions. Cell. 1990 Nov 2;63(3):579–590. doi: 10.1016/0092-8674(90)90453-l. [DOI] [PubMed] [Google Scholar]
  6. Kuziora M. A., McGinnis W. A homeodomain substitution changes the regulatory specificity of the deformed protein in Drosophila embryos. Cell. 1989 Nov 3;59(3):563–571. doi: 10.1016/0092-8674(89)90039-1. [DOI] [PubMed] [Google Scholar]
  7. LeMotte P. K., Kuroiwa A., Fessler L. I., Gehring W. J. The homeotic gene Sex Combs Reduced of Drosophila: gene structure and embryonic expression. EMBO J. 1989 Jan;8(1):219–227. doi: 10.1002/j.1460-2075.1989.tb03367.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Lin L., McGinnis W. Mapping functional specificity in the Dfd and Ubx homeo domains. Genes Dev. 1992 Jun;6(6):1071–1081. doi: 10.1101/gad.6.6.1071. [DOI] [PubMed] [Google Scholar]
  9. Mann R. S., Hogness D. S. Functional dissection of Ultrabithorax proteins in D. melanogaster. Cell. 1990 Feb 23;60(4):597–610. doi: 10.1016/0092-8674(90)90663-y. [DOI] [PubMed] [Google Scholar]
  10. McGinnis W., Krumlauf R. Homeobox genes and axial patterning. Cell. 1992 Jan 24;68(2):283–302. doi: 10.1016/0092-8674(92)90471-n. [DOI] [PubMed] [Google Scholar]
  11. Otting G., Qian Y. Q., Billeter M., Müller M., Affolter M., Gehring W. J., Wüthrich K. Protein--DNA contacts in the structure of a homeodomain--DNA complex determined by nuclear magnetic resonance spectroscopy in solution. EMBO J. 1990 Oct;9(10):3085–3092. doi: 10.1002/j.1460-2075.1990.tb07505.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Peifer M., Wieschaus E. Mutations in the Drosophila gene extradenticle affect the way specific homeo domain proteins regulate segmental identity. Genes Dev. 1990 Jul;4(7):1209–1223. doi: 10.1101/gad.4.7.1209. [DOI] [PubMed] [Google Scholar]
  13. Percival-Smith A., Müller M., Affolter M., Gehring W. J. The interaction with DNA of wild-type and mutant fushi tarazu homeodomains. EMBO J. 1990 Dec;9(12):3967–3974. doi: 10.1002/j.1460-2075.1990.tb07617.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Qian Y. Q., Otting G., Furukubo-Tokunaga K., Affolter M., Gehring W. J., Wüthrich K. NMR structure determination reveals that the homeodomain is connected through a flexible linker to the main body in the Drosophila Antennapedia protein. Proc Natl Acad Sci U S A. 1992 Nov 15;89(22):10738–10742. doi: 10.1073/pnas.89.22.10738. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Schneuwly S., Klemenz R., Gehring W. J. Redesigning the body plan of Drosophila by ectopic expression of the homoeotic gene Antennapedia. 1987 Feb 26-Mar 4Nature. 325(6107):816–818. doi: 10.1038/325816a0. [DOI] [PubMed] [Google Scholar]
  16. Treacy M. N., Neilson L. I., Turner E. E., He X., Rosenfeld M. G. Twin of I-POU: a two amino acid difference in the I-POU homeodomain distinguishes an activator from an inhibitor of transcription. Cell. 1992 Feb 7;68(3):491–505. doi: 10.1016/0092-8674(92)90186-g. [DOI] [PubMed] [Google Scholar]
  17. Vershon A. K., Johnson A. D. A short, disordered protein region mediates interactions between the homeodomain of the yeast alpha 2 protein and the MCM1 protein. Cell. 1993 Jan 15;72(1):105–112. doi: 10.1016/0092-8674(93)90054-t. [DOI] [PubMed] [Google Scholar]
  18. Weintraub H., Dwarki V. J., Verma I., Davis R., Hollenberg S., Snider L., Lassar A., Tapscott S. J. Muscle-specific transcriptional activation by MyoD. Genes Dev. 1991 Aug;5(8):1377–1386. doi: 10.1101/gad.5.8.1377. [DOI] [PubMed] [Google Scholar]
  19. Wolberger C., Vershon A. K., Liu B., Johnson A. D., Pabo C. O. Crystal structure of a MAT alpha 2 homeodomain-operator complex suggests a general model for homeodomain-DNA interactions. Cell. 1991 Nov 1;67(3):517–528. doi: 10.1016/0092-8674(91)90526-5. [DOI] [PubMed] [Google Scholar]
  20. Zhao J. J., Lazzarini R. A., Pick L. The mouse Hox-1.3 gene is functionally equivalent to the Drosophila Sex combs reduced gene. Genes Dev. 1993 Mar;7(3):343–354. doi: 10.1101/gad.7.3.343. [DOI] [PubMed] [Google Scholar]

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