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Pohjanpelto P., Virtanen I., Holtta E.
Polyamine starvation causes disappearance of actin filaments and microtubules in polyamine-auxotrophic CHO cells.
Nature 293:475-477(1981)

PubMed=7159597; DOI=10.1016/0167-4889(82)90085-4
Holtta E., Pohjanpelto P.
Polyamine dependence of Chinese hamster ovary cells in serum-free culture is due to deficient arginase activity.
Biochim. Biophys. Acta 721:321-327(1982)

PubMed=6727873; DOI=10.1128/mcb.4.5.915-922.1984
Anehus S., Pohjanpelto P., Baldetorp B., Langstrom E., Heby O.
Polyamine starvation prolongs the S and G2 phases of polyamine-dependent (arginase-deficient) CHO cells.
Mol. Cell. Biol. 4:915-922(1984)

PubMed=3924915; DOI=10.1016/S0021-9258(17)39505-4
Pohjanpelto P., Holtta E., Janne O.A., Knuutila S., Alitalo K.
Amplification of ornithine decarboxylase gene in response to polyamine deprivation in Chinese hamster ovary cells.
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PubMed=4033657; DOI=10.1128/mcb.5.6.1385-1390.1985
Pohjanpelto P., Holtta E., Janne O.A.
Mutant strain of Chinese hamster ovary cells with no detectable ornithine decarboxylase activity.
Mol. Cell. Biol. 5:1385-1390(1985)