HYAL1, also known as Hyaluronidase-1, is a member of the endolytic glycoside hydrolase family. Human hyaluronidases (HYALs) are a group of five endobetabetaNacetylhexosaminidases that include HYAL1, HYAL2, HYAL3, HYAL4, and SPAM1 (PH20). HYAL1 preferenti