TITLE

Expression of the helix-loop-helix protein, Id, during branching morphogenesis in the kidney

AUTHOR(S)
Duncan, Melinda K.; Shimamura, Tetsuo; Chada, Kiran
PUB. DATE
August 1994
SOURCE
Kidney International;Aug1994, Vol. 46 Issue 2, p324
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Id, a member of the helix-loop-helix protein family, is an inhibitor of transcriptional activation by basic-helix-loop-helix proteins. In the developing mouse kidney, Id mRNA was observed as early as 12.5 days post-coitum (dpc) specifically in the condensed mesenchyme surrounding the ureteric buds by in situ hybridization. At 14.5 dpc, Id mRNA was localized to the collecting tubules and developing glomeruli while the surrounding mesenchyme lacked Id hybridization. From birth to day 10 postnatal, Id mRNA is localized to the collecting tubules, immature glomeruli and renal pelvis. In the adult kidney, Id mRNA was delectable by Northern blot analysis but no cell type-specific localization was noted by in situ hybridization. These results indicate a role for HLH-bHLH proteins in the differentiation of the epithelial structures of the kidney.
ACCESSION #
14888586

 

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