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Sfrp-1 and sfrp-2 are expressed in overlapping and distinct domains during chick development.

Secreted frizzled related proteins (Sfrps) are thought to bind and regulate Wnt activity through a cysteine rich domain that is highly similar to that of Frizzled receptors. To investigate possible roles for Sfrps in chick development, we have isolated partial cDNAs encoding Sfrp-1 and Sfrp-2 and have thoroughly characterized the expression patterns of both genes. Both sfrp-1 and sfrp-2 are expressed at all stages of development analyzed, ranging from Hamburger and Hamilton stage 4 through stage 32. Expression of both sfrp-1 and sfrp-2 is observed in mesodermal and ectodermal derivatives, while sfrp-1 is also found in endodermal lineages.[1]

References

  1. Sfrp-1 and sfrp-2 are expressed in overlapping and distinct domains during chick development. Terry, K., Magan, H., Baranski, M., Burrus, L.W. Mech. Dev. (2000) [Pubmed]
 
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