Cathepsin D

**Semantic type:** Amino Acid, Peptide, or Protein|Enzyme

**Definition:** Cathepsin D (412 aa, ~45 kDa) is encoded by the human CTSD gene. This protein is involved in proteolysis.

**Synonyms:** - CTSD - EC 3.4.23.5 - Epididymis Secretory Sperm Binding Protein Li 130P