| abstract |
New protein (I) with melanoma-inhibiting activity inhibits growth of cell lines HTZ 19-dm and ATCC CRL 1424. It is encoded by (a) 459 bp cDNA (IIa) or the corresponding 3565 bp genomic sequence (IIb), both reproduced in the specification, encoding a 131 amino acid protein which includes a 24 amino acid signal peptide, or (b) DNA sequences, or their fragments, able to hybridise with (IIa) or (IIb) in the region encoding the mature protein. Also new are (1) HTZ 19-dm (DSM ACC 2133); (2) (IIa) and (IIb), also sequences complementary to them, able to hybridise with them, or equiv. within the degeneracy of the genetic code; (3) recombinant expression vectors contg. such DNA and able to express (I) in transformed microorganisms or eukaryotic cells; (4) prokaryotic and eukaryotic cells able to express (I); (5) antibodies (Ab) raised against (I). |