Rabbit anti-Human SPAM1 Polyclonal Antibody

Uniprot Id

P38567

Target Species

Human

Target Name

SPAM1

Target Full Name

Hyaluronidase PH-20

Target Function

Involved in sperm-egg adhesion. Upon fertilization sperm must first penetrate a layer of cumulus cells that surrounds the egg before reaching the zona pellucida. The cumulus cells are embedded in a matrix containing hyaluronic acid which is formed prior to ovulation. This protein aids in penetrating the layer of cumulus cells by digesting hyaluronic acid.

Target Subcellular Location

Cell membrane; Lipid-anchor, GPI-anchor.

Target Protein Families

Glycosyl hydrolase 56 family

Target Tissue Specificity

Testis.

Target Research Area

Cancer

Target Synonyms

epididymis secretory sperm binding protein Li 96n; HEL-S-96n; HYA1; HYAL PH-20; HYAL PH20; Hyal-PH20; HYAL1; HYAL3; HYAL5; HYALP_HUMAN; Hyaluronidase PH-20; Hyaluronoglucosaminidase PH-20; MGC26532; PH-20 Hyaluronidase; PH20; PH20 Hyaluronidase; SPAG15; SPAM-1; Spam1; sperm adhesion molecule 1 (PH-20 hyaluronidase, zona pellucida binding); Sperm adhesion molecule 1; Sperm surface protein PH-20; Sperm surface protein PH20; zona pellucida binding

Target Background

Hyaluronidase degrades hyaluronic acid, a major structural proteoglycan found in extracellular matrices and basement membranes. Six members of the hyaluronidase family are clustered into two tightly linked groups on chromosome 3p21.3 and 7q31.3. This gene was previously referred to as HYAL1 and HYA1 and has since been assigned the official symbol SPAM1; another family member on chromosome 3p21.3 has been assigned HYAL1. This gene encodes a GPI-anchored enzyme located on the human sperm surface and inner acrosomal membrane. This multifunctional protein is a hyaluronidase that enables sperm to penetrate through the hyaluronic acid-rich cumulus cell layer surrounding the oocyte, a receptor that plays a role in hyaluronic acid induced cell signaling, and a receptor that is involved in sperm-zona pellucida adhesion. Abnormal expression of this gene in tumors has implicated this protein in degradation of basement membranes leading to tumor invasion and metastasis. Multiple transcript variants encoding different isoforms have been found for this gene.