We have isolated C15orf5, a novel human gene lacking homology to any known
protein. The C15orf5 gene encodes a transcript of 1,519 nt with an ORF of 9
4 amino acids and a predicted protein size of 11.5 kDa. Northern blot analy
sis showed enhanced expression of C15orf5 in heart. C15orf5 was mapped to c
hromosome 15q23-q24 using the Stanford TNG4 Radiation Hybrid panel.