The present invention relates to new polynucleic acid and amino acid sequences corresponding to new HCV type 5 sequences. The present invention also relates to the use of these polynucleic acids and amino acids in methods or processes for the detection of one or more HCV genotypes, or for the preparation of antibodies against new HCV type 5 polypeptides. The invention also includes compositions comprising said polynucleic acid and amino acid sequences. The present invention further relates to kits comprising polynucleic acid probes and/or primers defined by the invention, or comprising polypeptides according to the invention.