Nucleotide and (derived) amino acid sequence of a novel peptide from a rat (hypercalcemic) Leydig cell tumor

The nucleotide sequence of a novel peptide from a rat Leydig cell hypercalcemic tumor H-500 was determined. This cDNA encodes a peptide of 93 amino acids and contains a heparin binding domain similar to histone 2-B. Northern blot analysis showed tissue specific expression of this peptide mRNA.