Collagen Type I Polyclonal antibody

Collagen Type I Polyclonal Antibody for IHC, WB,ELISA

Host / Isotype

Rabbit / IgG


mouse, human, pig, rat and More (4)





Cat no : 14695-1-AP


Alpha 2 type I collagen, COL1A2, Collagen alpha 2(I) chain, Collagen Type I, collagen, type I, alpha 2, OI4

Tested Applications

Positive WB detected inpig skin tissue, mouse lung tissue, rat lung tissue, human placenta tissue, human kidney tissue
Positive IHC detected inhuman skin cancer tissue, human colon tissue, human oesophagus cancer tissue
Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0

Recommended dilution

Western Blot (WB)WB : 1:1000-1:4000
Immunohistochemistry (IHC)IHC : 1:500-1:2000
Sample-dependent, check data in validation data gallery

Product Information

14695-1-AP targets Collagen Type I in WB, IP, IHC, IF, FC, ELISA applications and shows reactivity with mouse, human, pig, rat samples.

Tested Reactivity mouse, human, pig, rat
Cited Reactivityhuman, mouse, rat, bovine, canine, pig, rabbit, toad
Host / Isotype Rabbit / IgG
Class Polyclonal
Type Antibody
Immunogen Collagen Type I fusion protein Ag6281
Full Name collagen, type I, alpha 2
Calculated molecular weight 1366 aa, 130 kDa
Observed molecular weight 120-130 kDa
GenBank accession numberBC054498
Gene symbol COL1A2
Gene ID (NCBI) 1278
Conjugate Unconjugated
Form Liquid
Purification Method Antigen affinity purification
Storage Buffer PBS with 0.02% sodium azide and 50% glycerol pH 7.3.
Storage ConditionsStore at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage.

Background Information

Type I collagen, the major structural component of connective tissues such as skin, tendon and bone, is the most abundant and widely expressed collagen in humans (PMID: 7620364; 8645190; 9016532). Type I collagen is a heterotrimer comprising one alpha 2(I) and two alpha 1(I) chains which are encoded by the unlinked loci COL1A2 and COL1A1 respectively. Type I collagen has a molecular mass of about 250-300 kDa, while the alpha 2(I) chain has a molecular weight of about 100-140 kDa. Mutations in COL1A2 gene are associated with osteogenesis imperfecta, Ehlers-Danlos syndrome, idiopathic osteoporosis, and atypical Marfan syndrome. This antibody raised against 1017-1366 aa of human pro-alpha 2 chain of type I collagen can recognize collagen alpha 2(I) chain and C-terminal propeptide of pro-alpha 2(I) chain.


Product Specific Protocols
WB protocol for Collagen Type I antibody 14695-1-APDownload protocol
IHC protocol for Collagen Type I antibody 14695-1-APDownload protocol
Standard Protocols
Click here to view our Standard Protocols



Sci Adv

PKM2 promotes pulmonary fibrosis by stabilizing TGF-β1 receptor I and enhancing TGF-β1 signaling

Authors - Shaoyan Gao

Nat Commun

Reversal of pancreatic desmoplasia by re-educating stellate cells with a tumour microenvironment-activated nanosystem.

Authors - Xuexiang Han

Nat Commun

Aged bone matrix-derived extracellular vesicles as a messenger for calcification paradox.

Authors - Zhen-Xing Wang

Basic Res Cardiol

SAIL: a new conserved anti-fibrotic lncRNA in the heart.

Authors - Shenjian Luo

Nat Commun

Activation of E-prostanoid 3 receptor in macrophages facilitates cardiac healing after myocardial infarction.

Authors - Juan Tang

Cell Death Differ

Upregulation of Wilms' Tumor 1 in epicardial cells increases cardiac fibrosis in dystrophic mice.

Authors - Zhenglong Guo


The reviews below have been submitted by verified Proteintech customers who received an incentive forproviding their feedback.


PK (Verified Customer) (07-08-2022)

Very Good

  • Applications: Western Blot
  • Cell Tissue Type: Fibroblast
Collagen Type I Antibody Western Blot validation ( dilution) in Fibroblast (Cat no:14695-1-AP)

Ren Jie (Verified Customer) (06-22-2022)

Very strong signal for collagen I, needs stringent wash conditions to minimize ladder staining in western blot

  • Applications: Western Blot, Other
  • Primary Antibody Dilution: 1:1000

S (Verified Customer) (12-01-2021)


  • Applications: Western Blot
  • Cell Tissue Type: LUNG FIBROBLASTS
Collagen Type I Antibody Western Blot validation ( dilution) in LUNG FIBROBLASTS (Cat no:14695-1-AP)

Hala (Verified Customer) (02-23-2021)

very good

  • Applications: Western Blot
  • Primary Antibody Dilution: 1/1000

Eistine (Verified Customer) (05-31-2019)

The antibody works pretty good

  • Applications: Immunofluorescence,