Flygut: an atlas of the Drosophila adult midgut

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Home Overview of gut regions Anatomy Histology Transgene expression mapping Gene expression
Search expression data by gene:
Gene name CG1657
Flybase description This gene is referred to in FlyBase by the symbol Dmel\CG1657 (FBgn0030286).
Expression data along the gut
    Crop Cardia/R1 R2 R3 R4 R5 Hindgut Full gut
    Ratio gene/RPL42 -16.9674 -4.6554 -6.458666 -3.4727 -12.151788 -7.6505 -4.70809 -8.373015
    Affimetrix absolute value 4.364 5.408 5.503 6.63 5.186 5.654 6.419 5.237
    Affymetric present call in "x" number of chips 3 3 3 3 3 3 3 3
Intestinal gene expression in different physiological conditions
Ecc15: flies orally infected with Erwinia carotovora carotovora 15.
Pe: flies orally infected with Pseudomonas entomophila.
Pe gacA: flies orally infecte with Pseudomonas entomophila gacA.
For methods and description, see Buchon et al. 2009, Cell Host Microbe, and Chakrabarti et al. 2012, Cell Host Microbe.
Gene details (from Flybase) It is a protein_coding_gene from Drosophila melanogaster.
Based on sequence similarity, it is predicted to have molecular function: Rab guanyl-nucleotide exchange factor activity.
An electronic pipeline based on InterPro domains suggests that it is involved in the biological process: regulation of small GTPase mediated signal transduction.
5 alleles are reported.
No phenotypic data is available.
It has one annotated transcript and one annotated polypeptide.
Protein features are: Ras GTPase-activating protein; Rho GTPase activation protein; Vacuolar sorting protein 9; Vacuolar sorting protein 9, subgroup.
Summary of modENCODE Temporal Expression Profile: Temporal profile ranges from a peak of moderately high expression to a trough of moderate expression.
Peak expression observed within 00-06 and 18-24 hour embryonic stages, in stages of adults of both sexes.