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XB-ART-27600
Nucleic Acids Res 1988 Mar 25;166:2473-87.
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Characterization by human antibodies of two HeLa cell proteins which are related to Xenopus laevis transcription factor TFIIIA.

Lagaye S , Barque JP , le Maire M , Denis H , Larsen CJ .


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The sera of two patients with autoimmune disorders recognize in HeLa cell extracts two proteins with apparent molecular masses of 37,000 (p37) daltons and 32,000 daltons (p32). These proteins are non covalently associated with 5S RNA and sediment as 7-10 S particles in sucrose density gradients. Both proteins are antigenetically related to TFIIIA, a previously described protein of Xenopus laevis, which is known as a 5S RNA transcription factor and occurs in oocytes as a noncovalent complex with 5S RNA. Like TFIIIA, HeLa cell proteins p37 binds in vitro to 5S RNA and to cloned 5S RNA genes. These results suggest that protein p37 fulfils in HeLa cells a function similar to that of TFIIIA in amphibian oocytes, ie control of 5S RNA transcription.

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Species referenced: Xenopus laevis
Genes referenced: gtf3a

References [+] :
Barque, [Characterization of a new nuclear antigen using a human serum containing antinuclear antibodies (author's transl)]. 1982, Pubmed