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. Author manuscript; available in PMC: 2008 Jun 6.
Published in final edited form as: J Interferon Cytokine Res. 2000 Dec;20(12):1065–1070. doi: 10.1089/107999000750053726

Table 1.

Function of EpoRs with Alerted Stat Signaling in Fetal Erythropoiesisa

Virus (dilution) Epo-independent CFU-E
None 5 ± 3 (0)
SFF-R129C 82 ± 11 (77)
SFF-R129C (1:3) 20 ± 4 (15)
SFF-R129C/343-S3 28 ± 1 (23)
SFF-R129C/401-S3 40 ± 7 (35)
SFF-R129C/343/401-S3 39 ± 7 (34)
a

Fetal liver cells from day 13 mouse embryos were infected with retroviruses carrying constitutively active EpoR (as indicated). To adjust for differences in viral titer, a 1:3 dilution of SFF-R129C was also used. Erythroid colony-forming assays were performed as described in Materials and Methods. Mean colony numbers from triplicate cultures are shown for a representative experiment.