Product Name
Collagen Type III (COL3A1), Native Protein
Full Product Name
Collagen Type III protein
Product Synonym Names
Fetal collagen protein; Collagen type III alpha 1 protein; Ehlers Danlos syndrome type IV; Collagen type III alpha protein; autosomal dominant protein; EDS4A protein
Product Gene Name
COL3A1 native protein
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Research Use Only
For Research Use Only. Not for use in diagnostic procedures.
3D Structure
ModBase 3D Structure for P02461
Purity/Purification
Collagen Type III protein was purified by affinity chromatography.
Form/Format
Sterile filtered liquid in 0.5M CH3COOH, with 0.01% NaN3.
Source Note
Human placenta
Biological Significance
Collagen III is a fibrillar collagen that is found in extensible connective tissues such as skin, lung, and the vascular system, frequently in association with type I Collagen. Mutations in the gene are associated with Ehlers Danlos syndrome type IV, and with aortic and arterial aneurysms. Although alternate transcripts have been detected for this gene, they are the result of mutations; these mutations alter splicing, often leading to the exclusion of multiple exons.
Biohazard Information
This product contains sodium azide as preservative. Although the amount of sodium azide is very small appropriate care must be taken when handling this product.
Preparation and Storage
Store at 4 degree C. Dilute only prior to immediate use.
Other Notes
Small volumes of COL3A1 native protein vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.
Related Product Information for
COL3A1 native protein
Purified native Human Collagen Type III protein
Product Categories/Family for COL3A1 native protein
Cancer; Native Protein
Applications Tested/Suitable for COL3A1 native protein
User optimized
Western Blot of COL3A1 native protein
Western Blot analysis using Collagen Type III protein
Lane 1: Human Collagen III. Load: 100 ng per lane. Primary antibody: Collagen III antibody at 1:1000 ON at 4 deg C. Secondary antibody: Dylight (TM) 649 Goat anti-rabbit at 1:20, 000 for 30 min at RT. Block for 30 min at RT.

NCBI/Uniprot data below describe general gene information for COL3A1. It may not necessarily be applicable to this product.
NCBI Accession #
EAX10911.1
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UniProt Primary Accession #
P02461
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UniProt Secondary Accession #
P78429; Q15112; Q16403; Q53S91; Q541P8; Q6LDB3; Q6LDJ2; Q6LDJ3; Q7KZ56; D2JYH5; D3DPH4[Other Products]
UniProt Related Accession #
P02461[Other Products]
Molecular Weight
111,907 Da[Similar Products]
NCBI Official Full Name
collagen, type III, alpha 1 (Ehlers-Danlos syndrome type IV, autosomal dominant), isoform CRA_b
NCBI Official Synonym Full Names
collagen, type III, alpha 1
NCBI Official Symbol
COL3A1??[Similar Products]
NCBI Official Synonym Symbols
EDS4A
??[Similar Products]
NCBI Protein Information
collagen alpha-1(III) chain
UniProt Protein Name
Collagen alpha-1(III) chain
UniProt Gene Name
COL3A1??[Similar Products]
UniProt Entry Name
CO3A1_HUMAN
NCBI Summary for COL3A1
This gene encodes the pro-alpha1 chains of type III collagen, a fibrillar collagen that is found in extensible connective tissues such as skin, lung, uterus, intestine and the vascular system, frequently in association with type I collagen. Mutations in this gene are associated with Ehlers-Danlos syndrome types IV, and with aortic and arterial aneurysms. Two transcripts, resulting from the use of alternate polyadenylation signals, have been identified for this gene. [provided by R. Dalgleish, Feb 2008]
UniProt Comments for COL3A1
CO3A1: Collagen type III occurs in most soft connective tissues along with type I collagen. Defects in COL3A1 are a cause of Ehlers-Danlos syndrome type 3 (EDS3); also known as benign hypermobility syndrome. EDS is a connective tissue disorder characterized by hyperextensible skin, atrophic cutaneous scars due to tissue fragility and joint hyperlaxity. EDS3 is a form of Ehlers-Danlos syndrome characterized by marked joint hyperextensibility without skeletal deformity. Defects in COL3A1 are the cause of Ehlers-Danlos syndrome type 4 (EDS4). EDS is a connective tissue disorder characterized by hyperextensible skin, atrophic cutaneous scars due to tissue fragility and joint hyperlaxity. EDS4 is the most severe form of the disease. It is characterized by the joint and dermal manifestations as in other forms of the syndrome, characteristic facial features (acrogeria) in most patients, and by proneness to spontaneous rupture of bowel and large arteries. The vascular complications may affect all anatomical areas. Defects in COL3A1 are a cause of susceptibility to aortic aneurysm abdominal (AAA). AAA is a common multifactorial disorder characterized by permanent dilation of the abdominal aorta, usually due to degenerative changes in the aortic wall. Histologically, AAA is characterized by signs of chronic inflammation, destructive remodeling of the extracellular matrix, and depletion of vascular smooth muscle cells. Belongs to the fibrillar collagen family. 2 isoforms of the human protein are produced by alternative splicing.
Protein type: Extracellular matrix; Cell adhesion; Secreted, signal peptide; Secreted; Motility/polarity/chemotaxis
Chromosomal Location of Human Ortholog: 2q31
Cellular Component: extracellular matrix; extracellular space; endoplasmic reticulum lumen; extracellular region; collagen type III
Molecular Function: integrin binding; protein binding; platelet-derived growth factor binding; extracellular matrix structural constituent; metal ion binding; SMAD binding
Biological Process: skin development; integrin-mediated signaling pathway; platelet activation; receptor-mediated endocytosis; axon guidance; extracellular matrix organization and biogenesis; collagen fibril organization; wound healing; cell-matrix adhesion; heart development; negative regulation of immune response; positive regulation of Rho protein signal transduction; extracellular matrix disassembly; collagen catabolic process; response to radiation; gut development; response to mechanical stimulus; response to cytokine stimulus; transforming growth factor beta receptor signaling pathway; fibril organization and biogenesis; cerebral cortex development; peptide cross-linking; skeletal development; aging
Disease: Ehlers-danlos Syndrome, Type Iv, Autosomal Dominant; Ehlers-danlos Syndrome, Type Iii
Research Articles on COL3A1
1. A polymorphism not associated with pelvic organ prolapse in Dutch population">rs1800255, COL3A1 2209 G>A polymorphism not associated with pelvic organ prolapse in Dutch population
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