Abstract: The present invention relates to isolated polypeptides which comprise an amino acid sequence consisting of a mutated functional Abl kinase domain, said mutated functional kinase domain being resistant to inhibition of its tyrosine kinase activity by N-[4-methyl-3-(4-pyridin-3-yl-pyrimidin-2-ylamino)-phenyl]-4-(4-methyl-piperazin-1-ylmethyl)-benzamide or a salt thereof, to the use of such polypeptides to screen for compounds which inhibit the tyrosine kinase activity of such polypeptides, to nucleic acid molecules encoding such polypeptides, to recombinant vectors and host cells comprising such nucleic acid molecules and to the use of such nucleic acid molecules in the production of such polypeptides for use in screening for compounds which inhibit the tyrosine kinase activity of such polypeptides.

Abstract: The present invention relates to isolated polypeptides which comprise an amino acid sequence consisting of a mutated functional Abl kinase domain, said mutated functional kinase domain being resistant to inhibition of its tyrosine kinase activity by N-[4-methyl-3-(4-pyridin-3-yl-pyrimidin-2-ylamino)-phenyl]-4-(4-methyl-piperazin-1 -ylmethyl)-benzamide or a salt thereof, to the use of such polypeptides to screen for compounds which inhibit the tyrosine kinase activity of such polypeptides, to nucleic acid molecules encoding such polypeptides, to recombinant vectors and host cells comprising such nucleic acid molecules and to the use of such nucleic acid molecules in the production of such polypeptides for use in screening for compounds which inhibit the tyrosine kinase activity of such polypeptides.

Abstract: The tides which comprise an amino acid sequence consisting of a mutated functional Abl kinase domain, said mutated functional kinase domain being resistant to inhibition of its tyrosine kinase activity by N-[4-methyl-3-(4-pyridin-3-yl-pyrimidin-2-ylamino)-phenyl]-4-(4-methyl-piperazin-1-ylmethyl)-benzamide or a salt thereof, to the use of such polypeptides to screen for compounds which inhibit they tyrosine kinase activity of such polypeptides, to nucleic acid molecules encoding such polypeptides, to recombinant vectors and host cells comprising such nucleic acid molecules and to the use of such nucleic molecules in the production of such polypeptides for use in screening for compounds which inhibit the tyrosine kinase activity of such polypeptides.

Abstract: The invention relates to a method of treating a warm-blooded animal, especially a human, having depigmented hair or subject to hair depigmentation comprising administering to the animal a useful amount of a) at least one Abl, Kit and/or platelet-derived growth factor (PDGF) receptor tyrosine kinases inhibitor, the use of a) and at least one cosmetic acceptable carrier, to retard, prevent, suppress, and/or revere the depigmentation of hair, the use of a) for the preparation of a medicament for the treatment of a disease characterized by hair depigmentation and a topical cosmetic composition comprising a useful amount of at least one Abl, Kit or PDGF receptor tyrosine kinases inhibitor.

Abstract: The present invention relates to isolated polypeptides which comprise an amino acid sequence consisting of a mutated functional Abl kinase domain, said mutated functional kinase domain being resistant to inhibition of its tyrosine kinase activity by N-[4-methyl-3-(4-pyridin-3-yl-pyrimidin-2-ylamino)-phenyl]-4-(4-methyl-piperazin-1-ylmethyl)-benzamide or a salt thereof, to the use of such polypeptides to screen for compounds which inhibit the tyrosine kinase activity of such polypeptides, to nucleic acid molecules encoding such polypeptides, to recombinant vectors and host cells comprising such nucleic acid molecules and to the use of such nucleic acid molecules in the production of such polypeptides for use in screening for compounds which inhibit the tyrosine kinase activity of such polypeptides.