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We have purified and partially characterized a supernatant factor which reverses the effect of the heme-regulated translational inhibitor on protein synthesis in rabbit reticulocyte lysates. The anti-inhibitor restores protein synthesis activity in heme deficient lysates (and in lysates to which the inhibitor has been added) to the level observed in the presence of heme. The factor has no effect on the phosphorylation of eIF-2 by the inhibitor nor on any reaction carried out with purified initiation factors. The anti-inhibitor probably consists of three subunits with molecular weights of 81000, 60000 and 41000. The factor is isolated from the postribosomal supernatant of rabbit reticulocytes both free and complexed to eIF-2. A possible mechanism of action is discussed.
H Amesz, and
H Goumans, and
T Haubrich-Morree, and
H O Voorma, and
R Benne
August 1978,
Proceedings of the National Academy of Sciences of the United States of America,
H Amesz, and
H Goumans, and
T Haubrich-Morree, and
H O Voorma, and
R Benne
November 1982,
Proceedings of the National Academy of Sciences of the United States of America,
H Amesz, and
H Goumans, and
T Haubrich-Morree, and
H O Voorma, and
R Benne
January 1979,
Methods in enzymology,
H Amesz, and
H Goumans, and
T Haubrich-Morree, and
H O Voorma, and
R Benne
December 1976,
Proceedings of the National Academy of Sciences of the United States of America,
H Amesz, and
H Goumans, and
T Haubrich-Morree, and
H O Voorma, and
R Benne
September 1984,
Proceedings of the National Academy of Sciences of the United States of America,
H Amesz, and
H Goumans, and
T Haubrich-Morree, and
H O Voorma, and
R Benne
October 1978,
Proceedings of the National Academy of Sciences of the United States of America,
H Amesz, and
H Goumans, and
T Haubrich-Morree, and
H O Voorma, and
R Benne
November 1979,
Proceedings of the National Academy of Sciences of the United States of America,
H Amesz, and
H Goumans, and
T Haubrich-Morree, and
H O Voorma, and
R Benne
July 1981,
Biochimica et biophysica acta,
H Amesz, and
H Goumans, and
T Haubrich-Morree, and
H O Voorma, and
R Benne
August 1976,
Proceedings of the National Academy of Sciences of the United States of America,
H Amesz, and
H Goumans, and
T Haubrich-Morree, and
H O Voorma, and
R Benne
November 1986,
FEBS letters,
