PRELP (proline/arginine-rich end leucine-rich repeat protein), also known as Prolargin, MST161, SLRR2A or MSTP161, is a 382 amino acid secreted protein that localizes to the extracellular matrix. Belonging to the Class II subfamily of the small leucine-rich proteoglycan (SLRP) family, PRELP contains twelve LRR (leucine-rich) repeats, which are motifs consisting of 20-29 residues that are present in numerous proteins with diverse functions and provide versatile structural framework for the formation of protein-protein interactions. Highly expressed in cartilage, basement membranes and developing bone, PRELP is considered a glycosaminoglycan (GAG)- and collagen-binding anchor protein that associates with the basement membrane heparan sulfate proteoglycan perlecan. PRELP acts as a linker between the extracellular matrix and the cell surface of proteoglycans and may be partially responsible for Hutchinson-Gilford progeria (HGP), an extremely rare genetic disorder that causes premature, rapid aging shortly after birth.
Function:
May anchor basement membranes to the underlying connective tissue.
Subcellular Location:
Secreted > extracellular space > extracellular matrix.
Tissue Specificity:
Connective tissue.
Similarity:
Belongs to the small leucine-rich proteoglycan (SLRP) family. SLRP class II subfamily.
Contains 12 LRR (leucine-rich) repeats.
SWISS:
P51888
Gene ID:
5549
Database links:
Entrez Gene: 5549 Human
Omim: 601914 Human
SwissProt: P51888 Human
Unigene: 632481 Human
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