Collagen I alpha 1 Antibody [Janelia Fluor® 646]


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Product Details

Reactivity Hu, Mu, Po, Bt, Bv, Ca, Eq, Pm, ShSpecies Glossary
Applications ICC/IF, IHC, IHC-P
Janelia Fluor 646

Collagen I alpha 1 Antibody [Janelia Fluor® 646] Summary

This Collagen I alpha 1 antibody was raised against a synthetic peptide made to the C-terminal portion of the human Collagen I protein (between residues 1300-1350) [UniProt P02452]
Secreted to extracellular space and extracellular matrix.
Predicted Species
Porcine (94%), Bovine (100%), Canine (94%), Bat (94%), Sheep (94%), Equine (94%), Primate (100%). Backed by our 100% Guarantee.
Immunogen affinity purified
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Test in a species/application not listed above to receive a full credit towards a future purchase.


  • Immunocytochemistry/Immunofluorescence
  • Immunohistochemistry
  • Immunohistochemistry-Paraffin
Application Notes
Optimal dilution of this antibody should be experimentally determined.

Reactivity Notes

Immunogen's sequence similarity with other species: Rat (88%), Chicken (75%)

Packaging, Storage & Formulations

Store at 4C in the dark.
50mM Sodium Borate
0.05% Sodium Azide
Immunogen affinity purified


Sold under license from the Howard Hughes Medical Institute, Janelia Research Campus.

Alternate Names for Collagen I alpha 1 Antibody [Janelia Fluor® 646]

  • Alpha-1 type I collagen
  • COL1A1
  • COL-IA1
  • Collagen 1 alpha 1
  • Collagen 1
  • collagen alpha 1 chain type I
  • collagen alpha-1(I) chain
  • Collagen I alpha 1
  • collagen of skin, tendon and bone, alpha-1 chain
  • Collagen Type I Alpha 1 Chain
  • collagen, type I, alpha 1
  • Collagen1
  • Collagen-1
  • OI4
  • pro-alpha-1 collagen type 1
  • Type I Procollagen Alpha 1 Chain


Collagen is an extracellular matrix protein that serves as a scaffold defining the shape and mechanical properties of many tissues and organs including skin, tendon, artery walls, fibrocartilage, bone and teeth. Collagens are highly conserved and are characterized by an uninterrupted "Glycine X Y" triplet repeat that is a necessary part of the triple helical structure. The extensive family of collagens is composed of several chain types, including fibril-forming interstitial collagens (types I, II, III and V) and basement membrane collagens (type IV), each type containing multiple isoforms. Collagen type I (also known as collagen alpha, COL1A1, and alpha-1 type I collagen) is the largest component of fibrillar collagen found in cartilage and connective tissues. It is synthesized by fibroblasts, osteoblasts, and odontoblasts and has a theoretical molecular weight of 138 kDa.

Type I collagen is a fibril-forming collagen found in most connective tissues and is abundant in bone, cornea, dermis and tendon tissue. Collagens are fibrous, extracellular matrix proteins with high tensile strength and are the major components of connective tissue. Several collagens play a role in cell adhesion, responsible for maintaining normal tissue architecture and function. All collagens contain a triple helix domain and frequently show lateral self-association in order to form complex connective tissues. Post-Golgi LH3 trafficking is essential for collagen homeostasis and for the development and function of multiple organs and tissues (1).

The COL1A1 gene encodes the pro-alpha1 chains of type I collagen protein, whose triple helix is comprised of two alpha1 chains and one alpha2 chain. Mutations in the encoding COL1A1 gene are associated with brittle bone disease (Osteogenesis Imperfecta), cortical hyperostosis (Caffey disease) and disorders that affect the connective tissues (Ehlers-Danlos syndrome) (2). Studies have found that HIF-1 transcription regulation of collagen prolyl hydroxylases regulates collagen deposition, promoting cancer cell alignment along collagen fibers, which enhances invasion and metastasis to lymph nodes and lung tissue by breast cancer cells (3).


1. Banushi, B., Forneris, F., Straatman-Iwanowska, A., Strange, A., Lyne, A. M., Rogerson, C.,... Gissen, P. (2016). Regulation of post-Golgi LH3 trafficking is essential for collagen homeostasis. Nat Commun, 7, 12111. doi:10.1038/ncomms12111

2. Lu, Y., Zhang, S., Wang, Y., Ren, X., & Han, J. (2019). Molecular mechanisms and clinical manifestations of rare genetic disorders associated with type I collagen. Intractable Rare Dis Res, 8(2), 98-107. doi:10.5582/irdr.2019.01064

3. Gilkes, D. M., Chaturvedi, P., Bajpai, S., Wong, C. C., Wei, H., Pitcairn, S.,... Semenza, G. L. (2013). Collagen prolyl hydroxylases are essential for breast cancer metastasis. Cancer Res, 73(11), 3285-3296. doi:10.1158/0008-5472.Can-12-3963


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Product General Protocols

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Video Protocols

ICC/IF Video Protocol

FAQs for Collagen I alpha 1 Antibody (NBP1-77458JF646). (Showing 1 - 4 of 4 FAQ).

  1. We are looking for an anti-Collagen antibody for Flow Cytometry (FACS) analysis in Swine sample. Would you please provide some references if there is any available as well?
    • We currently have one antibody for porcine Collagen validated in flow cytometry (catalog # NBP1-94202).
  2. I am looking for anti collagen 1 antibody, I see your product calls it collagen I alpha 1 is there a difference?
    • Collagen I alpha 1 is the most common protein for the collagen 1 protein. There are other subunits as well (such as collagen 1 alpha 2…etc.).
  3. The predicted molecular weight says 150kDA but the band on the gel appears at 130kDA why is that?
    • Differences between the predicted and observed MW can be affected by a number of factors including PTMs, relative charges and experimental factors. These cumulative effect of these differences can be quite substantial with larger molecules such as collagen I alpha 1.
  4. How long does delivery take for your collagen 1 alpha 1 antibody?
    • Our most popular collagen I alpha 1 antibody (NB600-408) is usually in stock and ships priority overnight for next business day delivery in the U.S.

Secondary Antibodies


Isotype Controls

Other Available Formats

Alexa Fluor 350 NBP1-77458AF350
Alexa Fluor 405 NBP1-77458AF405
Alexa Fluor 488 NBP1-77458AF488
Alexa Fluor 532 NBP1-77458AF532
Alexa Fluor 594 NBP1-77458AF594
Alexa Fluor 647 NBP1-77458AF647
Alexa Fluor 700 NBP1-77458AF700
Alexa Fluor 750 NBP1-77458AF750
Biotin NBP1-77458B
DyLight 350 NBP1-77458UV
DyLight 405 NBP1-77458V
DyLight 488 NBP1-77458G
DyLight 550 NBP1-77458R
DyLight 594 NBP1-77458DL594
DyLight 650 NBP1-77458C
DyLight 680 NBP1-77458FR
DyLight 755 NBP1-77458IR
FITC NBP1-77458F
Janelia Fluor 549 NBP1-77458JF549
Janelia Fluor 646 NBP1-77458JF646

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Gene Symbol COL1A1