
BCD forms "exponential-in-distance" anterior-posterior gradient in early embryo.
3D
representation of the BCD morphogenetic gradient
Upstream Genes |
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bicoid |
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| c'n'c | btd | ems | otd | hb | kr | kni | kni-r | gt | tll | eve | run | slp | Dfd | gsc | ph |
Downstream Genes |
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The bicoid protein is a positive regulator of hunchback transcription in the early Drosophila embryo. Nature 337: 138-143 (1989)
The gradient morphogen bicoid is a concentration-dependent transcriptional activator. Cell 57: 1259-1273 (1989)
Regulation of the Drosophila segmentation gene hunchback by two maternal morphogenetic centres. Nature 332: 281-284 (1988)
Synergy between the hunchback and bicoid morphogens is required for anterior patterning in Drosophila. Cell 78: 855-865 (1994)
Spatial regulation of the gap gene giant during Drosophila development. Development 111: 601-609 (1991)
Interactions of the Drosophila gap gene giant with maternal and zygotic pattern-forming genes. Development 111: 367-378 (1991)
Trans- and cis-acting requirements for blastodermal expression of the head gap gene buttonhead. Mech. Dev. 53: 235-245 (1995)
Establishment of the Deformed expression stripe requires the combinatorial action of coordinate, gap and pair-rule proteins. EMBO J 9: 1187-1198 (1990)
Three maternal coordinate systems cooperate in the patterning of the Drosophila head. Development 120: 3155-3171 (1994)
Empty spiracles, a gap gene containing a homeobox involved in Drosophila head development. EMBO J 11: 2247-2259 (1992)
Spatial regulation of segment polarity gene expression in the anterior terminal region of the Drosophila blastoderm embryo. Mech Dev 50: 151-161 (1995)
Transcriptional regulation of a pair-rule stripe in Drosophila. Genes Dev 5: 827-839 (1991)
Regulation of even-skipped stripe 2 in the Drosophila embryo. EMBO J 11: 4047-4057 (1992)
Identical transacting factor requirement for knirps and knirps-related Gene expression in the anterior but not in the posterior region of the Drosophila embryo. Mech Dev 46: 169-181 (1994)
Activation of posterior gap gene expression in the Drosophila blastoderm. Nature 376: 253-256 (1995)
Identical transacting factor requirement for knirps and knirps-related Gene expression in the anterior but not in the posterior region of the Drosophila embryo. Mech Dev 46: 169-181 (1994)
The orthodenticle gene is regulated by bicoid and torso and specifies Drosophila head development Nature 346: 485-488 (1990)
orthodenticle regulation during embruonic head development in Drosophila. Gao Q; Wang Y; Finkelstein R. Mech Dev 56: 3-15 (1996)
Interactions of the Drosophila gap gene giant with maternal and zygotic pattern-forming genes. Eldon ED; Pirrotta V. Development 111: 367-378 (1991)
Control of tailless expression by bicoid, dorsal and synergistically interacting terminal system regulatory elements. Mech Dev 40: 47-61 (1993)
bicoid and the terminal system activate tailless expression in the early Drosophila embryo. Development 115: 239-251 (1992)
Disperse versus compact elements for the regulation of runt stripes in Drosophila. Klingler M; Soong J; Butler B; Gergen JP. Dev Biol 177: 73-84 (1996)
Gene expression mediated by cis-acting sequences of the Kruppel gene in response to the Drosophila morphogens bicoid and hunchback. EMBO J 10: 2267-2278 (1991)
Genetic regulation of cnc expression in the pharyngeal primordia of Drosophila blastoderm embryos. Mohler J. Roux's Arch. Dev. Biol. 202: 214 (1993)
Three maternal coordinate systems cooperate in the patterning of the Drosophila head. Development 120: 3155-3171 (1994)
A functional homologue of goosecoid in Drosophila. Development 122: 1641-1650 (1996)
Regulation of polyhomeotic transcription may involve local changes in chromatin activity in Drosophila. Mech Dev 52: 343-355 (1995)
Establishment of the Deformed expression stripe requires the combinatorial action of coordinate, gap and pair-rule proteins. EMBO J 9: 1187-98 (1990)
Direct control of transcription of the Drosophila morphogen bicoid by the serendipity delta zinc finger protein, as revealed by in vivo analysis of a finger swap. Genes Dev. 8: 2718-2728 (1994)
Boring, L. Weir, M. and Schubiger, G. (1993). Egg ligation alters the Bcd protein gradient and segmentation gene expression in embryos of Drosophila. Mech Dev 42: 97-111
Driever, W. and Nüsslein-Volhard, C. (1988). A gradient of bicoid protein in Drosophila embryos. Cell 54: 83-93
Dubnau, J. and Struhl, G. (1996). RNA recognition and translational regulation of a homeodomain protein. Nature 379: 694-699
Fauvarque, M.O., Zuber, V and Dura, J. M. (1995). Regulation of polyhomeotic transcription may involve local changes in chromatin activity in Drosophila. Mech Dev 52: 343-355
Ferrandon, D., et al. (1994). Staufen protein associates with the 3'UTR of bicoid mRNA to form particles that move in a microtubule-dependent manner. Cell 79: 1221-1232
Finkelstein, R. and Perrimon, N. (1990). The orthodenticle gene is regulated by bicoid and torso and specifies Drosophila head development. Nature 346: 485-8
Frigerio, G., et al. (1986). Structure of the segmentation gene paired and the Drosophila PRD gene set as part of a gene network. Cell 47: 735-46
Fröhnhofer, H.G. and Nüsslein-Volhard, C. (1986). Organization of anterior pattern in the Drosophila embryo by the maternal gene bicoid. Nature 324: 120-125
Gao, Q., Wang, Y. and Finkelstein, R. (1996). orthodenticle regulation during embryonic head development in Drosophila. Mech. Dev. 56: 3-15
Gavis, E. R. and Lehmann, R. (1994). Translational regulation of nanos by RNA localization. Nature 369: 315-8
Gillespie, D. E., and Berg, C. A. (1995). Homeless is required for RNA localization in Drosophila oogenesis and encodes a new member of the DE-H family of RNA-dependent ATPases. Genes Dev 9: 2495-2508
Goriely, A., et al. (1996). A functional homologue of goosecoid in Drosophila. Development 122: 1641-1650
Gottlieb, E. (1992). The 3' untranslated region of localized maternal messages contains a conserved motif involved in mRNA localization. Proc Natl Acad Sci 89: 7164-8
Grossniklaus, U., Cadigan, K. M. and Gehring, W. J. (1994). Three maternal coordinate systems cooperate in the patterning of the Drosophila head. Development 120: 3155-3171.
Hanes, S. D., et al. (1994). Specific DNA recognition and intersite spacing are critical for action of the bicoid morphogen. Mol Cell Biol 14: 3364-75
Hoch, M., Seifert, E. and Jaeckle, H. (1991). Gene expression mediated by cis-acting sequences of the Krüppel gene in response to the Drosophila morphogens bicoid and hunchback. EMBO J. 10:2267-2278
Ip, Y. T., Levine, M. and Small, S. J. (1992). The bicoid and dorsal morphogens use a similar strategy to make stripes in the Drosophila embryo. J Cell Sci Suppl 16: 33-8
Jack, T. and McGinnis, W. (1990). Establishment of the Deformed expression stripe requires the combinatorial action of coordinate, gap and pair-rule proteins. EMBO J 9: 1187-98
Kerszberg, M. and Changeux, J. P. (1994). A model for reading morphogenetic gradients: autocatalysis and competition at the gene level. Proc Natl Acad Sci 91: 5823-7
Lane, M. E. and Kalderon, D. (1994). RNA localization along the anteroposterior axis of the Drosophila oocyte requires PKA-mediated signal transduction to direct normal microtubule organization. Genes Dev 8: 2986-2995
Liaw, G.-J. and Lengyel, J.A. (1992). Control of tailless expression by bicoid, dorsal and synergistically interacting terminal system regulation elements. Mech. Dev. 40: 47-61
Liaw, G. J. and Lengyel, J. A. (1993). Control of tailless expression by bicoid, dorsal and synergistically interacting terminal system regulatory elements. Mech Dev 40: 47-61
Luk, S. K., et al. (1994). Components acting in localization of bicoid mRNA are conserved among Drosophila species. Genetics 137: 521-530
Macdonald, P. M., et al. (1993). RNA regulatory element BLE1 directs the early steps of bicoid mRNA localization. Development 118: 1233-43
Macdonald, P. M., Leask, A. and Kerr, K. (1995). exl protein specifically binds BLE1, a bicoid mRNA localization element, and is required for one phase of its activity. Proc Natl Acad Sci 92: 10787-10791
Payre, F., Crozatier, M. and Vincent, A. (1994). Direct control of transcription of the Drosophila morphogen bicoid by the serendipity delta zinc finger protein, as revealed by in vivo analysis of a finger swap. Genes Dev. 8: 2718-28
Pignoni, F., Steingrimsson, E. and Lengyel, J.A. (1992). bicoid and the terminal system activate tailless expression in the early Drosophila embryo. Development 115: 239--251
Pokrywka, N. J. and Stephenson, E. C. (1995). Microtubules are a general component of mRNA localization systems in Drosophila oocytes. Dev. Biol. 167: 363-70
Ronchi, E., et al. (1993). Down-regulation of the Drosophila morphogen bicoid by the torso receptor-mediated signal transduction cascade. Cell 74: 347-55
Roth, S., et al (1995). cornichon and the EGF receptor signaling process are necessary for both anterior-posterior and dorsal-ventral pattern formation in Drosophila. Cell 81: 967-978
Salles, F. J., et al. (1994). Coordinate initiation of Drosophila development by regulated polyadenylation of maternal messenger RNAs. Science 266: 1996-1999
Sauer, F., Hansen, S. K. and Tjian, R. (1995). DNA template and activator-coactivator requirements for transcriptional synergism by Drosophila bicoid. Science 270: 1825-1828
Sauer, F., Hansen, S. K. and Tjian, R. (1996). Multiple TAFIIs directing synergistic activation of transcription. Science 270: 1783-1788
Serano, T. L. and Cohen, R. S. (1995). A small predicted stem-loop structure mediates oocyte localization of Drosophila K10 mRNA. Development 121: 3809-3818
Simpson-Brose, M., Treisman, J. and Desplan, C. (1994) Synergy between the hunchback and bicoid morphogens is required for anterior patterning in Drosophila. Cell 78: 855-865
Small, S., Blair, A. and Levine, M. (1992). Regulation of even-skipped stripe 2 in the Drosophila embryo. EMBO J 11: 4047-57
Tsai, C, and Gergen, J. P. (1994). Gap gene properties of the pair-rule gene runt during Drosophila segmentation. Development 120: 1671-1683
Walldorf, U. and Gehring, W. J. (1992). empty spiracles, a gap gene containing a homeobox involved in Drosophila head development. EMBO J 11: 2247-59
Wang, S. and Hazelrigg, T. (1994). Implications for bcd mRNA localization from spatial distribution of exu protein in Drosophila oogenesis. Nature 369: 400-03
Wharton, R. P. and Struhl, G. (1991). RNA regulatory elements mediate control of Drosophila body pattern by the posterior morphogen nanos. Cell 67: 955-67
Wimmer, E. A., et al., (1995). Trans- and cis-acting requirements for blastodermal expression of the head gap gene buttonhead. Mech. Dev. 53: 235-245
Seg-Net
HOX-pro DB