Decorin

Decorin

Target · Proteoglycan

Decorin Decorin · DSPG2, SLRR1B

Decorin (DCN) is a secreted small leucine-rich proteoglycan of the extracellular matrix, also known as DSPG2 or SLRR1B. It contributes to collagen fibril assembly and, through cell surface receptors, to tumour suppression. Browse Assay Genie's current range of Decorin research reagents below, or read on for the biology behind the target.

Secreted, extracellular matrixSmall leucine-rich proteoglycanLinked to corneal dystrophy
359 aa
Protein length
~40 kDa
Molecular weight
12q21.33
Gene locus
SLRP class I
Protein family
Target information

What is Decorin (decorin)?

Decorin is a secreted proteoglycan found in the extracellular space and extracellular matrix. It plays a role in collagen fibril assembly, and UniProt notes that it may affect the rate of fibril formation. Beyond this structural role, decorin binds multiple cell surface receptors. Through these interactions it mediates tumour suppression, with a stimulatory effect on autophagy and inflammation and an inhibitory effect on angiogenesis and tumorigenesis.

The DCN gene encodes a member of the small leucine-rich proteoglycan (SLRP) family, and decorin belongs to the SLRP class I subfamily. HGNC places it in the small leucine rich repeat proteoglycans gene group. Alternative splicing produces multiple transcript variants. At least one of these encodes a preproprotein, which is proteolytically processed to give the mature protein. Mouse and rat both carry a corresponding Dcn ortholog.

The related gene biglycan is thought to have arisen with DCN through a gene duplication. Decorin has also been known as DSPG2 and SLRR1B. In human patients, mutations in the decorin gene are associated with congenital stromal corneal dystrophy, which links the protein's matrix function to corneal tissue integrity. Researchers studying matrix biology, fibrosis-independent tumour signalling and autophagy use decorin as a model SLRP, and the decorin protein is a frequent subject of antibody- and ELISA-based studies.

Collagen fibril assembly

Decorin plays a role in collagen fibril assembly and may affect the rate of fibril formation in the extracellular matrix.

Tumour suppression

Decorin binds multiple cell surface receptors to mediate tumour suppression, including an inhibitory effect on tumorigenesis.

Angiogenesis, autophagy and inflammation

Receptor binding by decorin inhibits angiogenesis and stimulates autophagy and inflammation, making it relevant to these signalling studies.

Corneal dystrophy research

Mutations in the decorin gene are associated with congenital stromal corneal dystrophy in human patients.

Background

Decorin frequently asked questions

What does decorin do?

Decorin plays a role in collagen fibril assembly and may affect the rate of fibril formation. It also binds multiple cell surface receptors, mediating tumour suppression through stimulation of autophagy and inflammation and inhibition of angiogenesis and tumorigenesis.

What other names and forms does decorin have?

Decorin is encoded by DCN and is also called DSPG2 or SLRR1B. Alternative splicing gives multiple transcript variants, and at least one encodes a preproprotein that is proteolytically processed into the mature protein.

Is decorin conserved and linked to disease?

Mouse and rat both have a Dcn ortholog; check the datasheet of any product for its validated reactivity. Decorin gene mutations are associated with congenital stromal corneal dystrophy in humans. DCN and biglycan likely arose by gene duplication.

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Related targets

Biglycan and other small leucine-rich proteoglycans, collagen matrix proteins and tumour-suppression markers with products at Assay Genie.

Gene and protein annotations from HGNC, NCBI Gene and UniProt P07585; product specifications from Assay Genie datasheets.

Decorin Product listing