COL2A1 Antibody

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Description

Key Features of COL2A1 Antibodies

COL2A1 antibodies vary in host species, clonality, reactivity, and applications. Below is a comparative table of notable products:

VendorCatalog #HostClonalityReactivityApplicationsKey Features
Boster BioPA2141-1RabbitPolyclonalMouse, RatIHC, WBPicoband® premium quality; minimal background
Biossbs-10589RRabbitPolyclonalHuman, Mouse, Rat, RabbitWB, ELISA, IHC, IF, ICCKLH-conjugated peptide (aa 231-330/1487)
Cell Signaling Tech43306RabbitMonoclonalHumanWBDetects endogenous COL2A1; non-specific 62 kDa band observed
DSHBCIIC1MouseMonoclonalBroad (Human, Mouse, Bovine)IF, IHC, WBRecognizes native triple-helical collagen II
Abcamab34712RabbitPolyclonalHuman, Mouse, Rat, ChickenWB, IP, ELISA, IHC-P, ICC/IFValidated in 765+ publications; affinity-purified

Cartilage Biology and Osteoarthritis

COL2A1 antibodies have been instrumental in elucidating mechanisms of chondrocyte hypertrophy and OA progression:

  • Suppression of Hypertrophy: COL2A1 inhibits chondrocyte hypertrophy by disrupting BMP-SMAD1 signaling. In Col2a1 p.Gly1170Ser mutant mice, COL2A1 loss accelerates hypertrophy via upregulated BMP-SMAD1 activity .

  • Disease-Amplifying Loop: Degradation of COL2A1 in OA cartilage reduces its ability to suppress BMP-SMAD1, creating a feedback loop that exacerbates cartilage destruction .

Cancer Biomarker Studies

  • Melanoma: COL2A1 is a biomarker for melanoma tumor-repopulating cells (TRCs), showing ~20-fold higher expression in TRCs compared to parental cells. Immunofluorescence confirms elevated COL2A1 protein levels in TRCs .

Epitope Specificity

  • CIIC1 (DSHB): Targets the triple-helical ARGLT motif (aa 359-363 in humans) .

  • PA2141-1 (Boster Bio): Binds a C-terminal peptide (mouse Collagen II 1222-1241aa) .

Molecular Weight Observations

  • Observed: ~170 kDa (PA2141-1) , ~200 kDa (Cell Signaling Tech) .

  • Predicted: 141 kDa (COL2A1) .

Cross-Reactivity

  • Species-Specific: PA2141-1 reacts only with mouse and rat , while bs-10589R detects human, mouse, rat, and rabbit .

  • Non-Cross-Reactive: PA2141-1 shows no cross-reactivity with other proteins .

Premium Antibodies

  • Picoband® (PA2141-1): Guarantees high affinity and low background in WB .

  • Abcam’s ab34712: Validated across 8+ species and widely cited .

Monoclonal vs. Polyclonal

  • Monoclonal (CIIC1, II-II6B3): Ideal for detecting conformational epitopes in native collagen II .

  • Polyclonal (PA2141-1, bs-10589R): Suitable for linear epitopes across denatured samples .

Pathological and Therapeutic Insights

  • OA Pathogenesis: COL2A1 degradation in OA cartilage correlates with upregulated MMPs (e.g., MMP13) and accelerated hypertrophy .

  • Therapeutic Targets: Restoring COL2A1 signaling or blocking BMP-SMAD1 could mitigate OA progression .

Product Specs

Form
Rabbit IgG in phosphate buffered saline, pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
Lead Time
Typically, we can ship your orders within 1-3 business days of receipt. Delivery times may vary depending on the order method and location. For precise delivery timelines, please consult your local distributor.
Synonyms
Alpha 1 type II collagen antibody; Alpha-1 type II collagen antibody; AOM antibody; Cartilage collagen antibody; Chondrocalcin antibody; CO2A1_HUMAN antibody; COL11A3 antibody; Col2a1 antibody; Collagen 2 antibody; Collagen II alpha 1 polypeptide antibody; SEDC antibody
Target Names
Uniprot No.

Target Background

Function
Type II collagen is a crucial component of cartilaginous tissues. It plays a vital role in the normal skeletal development of the embryo, supports linear growth, and enables cartilage to withstand compressive forces.
Gene References Into Functions

Related Research Articles:

  1. In summary, it is not easy to differentiate Stickler syndrome (STL) from early-onset high myopia with routine ocular examination in outpatient clinics. Recognizing atypical phenotypes and newly discovered signs can be helpful in identifying atypical STL, especially in children at eye clinics. PMID: 30181686
  2. The findings of the current study expand the known mutation spectrum of COL2A1, which could facilitate genetic counseling and the development of therapeutic strategies for patients with Stickler syndrome. PMID: 30015854
  3. Results suggest that COL2A1 is a potential susceptibility gene for Kashin-Beck disease (KBD). COL2A1 may be involved in the growth and development failure of the hand in KBD. PMID: 28059113
  4. COL2A1 mutation (c.3508G>A) leads to avascular necrosis of the femoral head in a Chinese family. PMID: 29750297
  5. Retention of misfolded R740C and R789C proteins triggered an ER stress response. R740C and R789C proteins exhibited significantly reduced melting temperatures. PMID: 29439465
  6. The novel mutation of COMP may result in intracellular accumulation of the mutant protein. Decreased plasma COMP and increased plasma CTX-II may potentially serve as diagnostic markers of PSACH but may not be applicable in the presymptomatic carrier. PMID: 29104872
  7. In summary, regarding the association between Type II Collagen Degradation Marker (CTx-II) and VDR polymorphisms in patients with osteochondrosis, this study observed higher CTx-II circulating levels in patients with bb, Aa , and TT genotypes, and F and T alleles, compared to healthy controls. PMID: 28961166
  8. A c.G1636A (p.G546S) mutation in the COL2A1 in 3 members of a family was associated with different metaphyseal changes. Findings revealed a distinct causative amino acid substitution (glycine to serine) linked to the "dappling" and "corner fracture" metaphyseal abnormalities and could provide a useful reference for evaluating the phenotypic spectrum and variability of type II collagenopathies. PMID: 28738883
  9. In this study, three novel and two known mutations in the COL2A1 gene were identified in six of 16 Chinese patients with Stickler syndrome. This is the first study in a cohort of Chinese patients with Stickler syndrome, and the results expand the mutation spectrum of the COL2A1 gene. PMID: 27390512
  10. We identified three novel heterozygous COL2A1 mutations (Gly537Asp, Gly909Ser, and Gly1149Val) in three unrelated Chinese Spondyloepiphyseal dysplasia congenita families. PMID: 27059630
  11. Unique charge-dependent constraints on collagen recognition by integrin alpha10beta1 have been described. PMID: 27569273
  12. We report a novel nonsense mutation in exon 2 of COL2A1 that displays incomplete penetrance and/or variable age of onset with extraocular manifestations. PMID: 28095098
  13. This report examines how a COL2A1 intron 2 de novo variant and polymorphism affect exon 2 inclusion in the COL2A1 transcript, and identifies potential transacting splicing factors that interact with these different pre-mRNA sequences. Additionally, using a cohort of patients with rhegmatogenous retinal detachment and controls, a significant difference was found in the frequency of the COL2A1 variant rs1635532 between the two groups. PMID: 27406592
  14. Spondylometaphyseal dysplasia (SMD) corner fracture type is a heterogeneous disorder with a subset of patients exhibiting overlap with type II collagenopathies. Therefore, COL2A1 molecular testing should be considered in patients presenting with corner fracture-like lesions in the context of SMD. PMID: 27888646
  15. High type II collagen expression is associated with intervertebral disc degeneration. PMID: 28559201
  16. Endoplasmic reticulum stress contributes to the progression of senescence and apoptosis of osteoarthritic chondrocytes, characterized by increased expression of ADAMTS5, MMP13, and decreased COL2A1 expression. PMID: 28728848
  17. These results highlight the role of ELF3 in the transcriptional regulation of COL2A1. PMID: 27310669
  18. Half of the Stickler patients (46%) carried a COL2A1 variant, and the molecular spectrum varied across the phenotypes. PMID: 26626311
  19. These findings suggest a novel mechanism of action for SOX5/6; namely, the SOX9/5/6 combination enhances Col2a1 transcription through a novel enhancer in intron 6 alongside the enhancer in intron 1. PMID: 27881681
  20. Analysis of the COL2A1 mutation in idiopathic osteonecrosis of the femoral head among patients from 22 Japanese hospitals. PMID: 27183340
  21. The genotype and allele frequencies of the COL2A1 genetic polymorphisms (rs1793953 and rs2276454) and the Aggrecan VNTR polymorphisms differed significantly between the case group and the control group. The genotype and allele frequencies of the COL2A1 genes, rs1793953 and rs2276454, and Aggrecan VNTR significantly differed in terms of Pfirrmann grades III, IV, and V. PMID: 27991836
  22. Collagen type II loss is induced by the down-regulation of miR-133a in intervertebral disc degeneration. PMID: 26656045
  23. Decreased mRNA expression of COL2A1 is associated with Osteoarthritis. PMID: 27428952
  24. COL2A1 defects in OSTL1 are not limited to mutations in exon 2, including c.2678dupC (p.Ala895Serfs*49) and c.3327+ 1G>C. PMID: 26709265
  25. This study provides an updated list of COL2A1 mutations identified in the literature and in our patients with a genetic diagnosis for bone dysplasia; the work confirmed that mutations in this gene are responsible for a wide clinical spectrum ranging from lethal major skeletal abnormalities to isolated arthritis. PMID: 26443184
  26. Overexpression of miR-27b promoted type II collagen expression in nucleus pulposus cells. PMID: 26583473
  27. Whole exome sequencing identified a novel COL2A1 mutation that causes mild Spondylo-epiphyseal dysplasia mimicking autosomal dominant brachyolmia. PMID: 26586363
  28. Dysspondyloenchondromatosis is associated with COL2A1 mutation. PMID: 26250472
  29. A constitutive mutation in the COL2A1 gene is associated with Kniest dysplasia and chondrosarcoma. PMID: 26345137
  30. Serum CTX-II levels in human brucellosis were higher than those of healthy controls, but serum CTX-II levels in male patients were significantly higher than those of female patients, indicating biological changes in cartilage and bone in human brucellosis. PMID: 27109135
  31. Results identified a novel COL2A1 variant (c.619G>A, p.Gly207Arg) causing a distinct type II collagenopathy with features of progressive pseudorheumatoid dysplasia and spondyloepiphyseal dysplasia, Stanescu type. PMID: 26183434
  32. An estimated median of 95 months was observed compared to an estimated median of 16 months for subjects expressing other levels of COL2A1 and SLC6A10P. PMID: 26311224
  33. A novel mutation, c.620G>A (p.Gly207Glu), was identified in the collagen type II alpha-1 gene; genotype-phenotype relationship between mutations and clinical findings of Spondyloepiphyseal dysplasia congenita. PMID: 26030151
  34. A novel Col2a1 mutant mouse possessing a p.Tyr1391Ser missense mutation was identified. Endoplasmic reticulum stress-mediated apoptosis contributes to a skeletal dysplasia resembling platyspondylic lethal skeletal dysplasia, Torrance type, in this line. PMID: 26545783
  35. A unique case of spondyloepiphyseal dysplasia congenita with mild coxa vara caused by double de novo COL2A1 mutations (p.G504S, p.G612A) located on the same allele. PMID: 25900302
  36. c.2224G>A (p.Gly687Ser) is a novel mutation of COL2A1 associated with spondyloepiphyseal dysplasia congenital. PMID: 25967556
  37. Six new unrelated patients with R989C mutation in COL2A1 gene associated with a severe phenotype of spondyloepiphyseal dysplasia congenita. PMID: 25735649
  38. Urine C2C and trace element levels in patients with knee osteoarthritis. PMID: 24728947
  39. A novel missense mutation (c.905C>T, p.Ala302Val) found in the coding region of the COL2A1 gene is associated with Kniest dysplasia. PMID: 26037341
  40. miR-93 contributed to abnormal nucleus pulposus cell type II collagen expression by targeting MMP3, involved in intervertebral disc degeneration. PMID: 25818544
  41. A novel missense mutation of c.2224G>A (p.Gly687Ser) in the COL2A1 gene is associated with a Chinese family with spondyloepiphyseal dysplasia congenita. PMID: 25863096
  42. Somatic alterations of the COL2A1 were found in 19.3% of chondrosarcoma and 31.7% of enchondroma cases. PMID: 25024164
  43. Results suggest that COL2A1 is associated with the risk of degenerative lumbar scoliosis in the Korean population. PMID: 25436060
  44. A mutation in the COL2A1 gene is the causative agent of ONFH in this family. PMID: 25050885
  45. The study shows that approximately 45% of the collagen IIA synthesis as assessed by the collagen IIA N-terminal propeptide in serum is attributable to genetic effectors while individual and shared environment account for 24% and 31% respectively. PMID: 25008205
  46. Data indicate T cell specificity antibody to the CII259-273 T cell epitope in B10.DR4.Ncf1*/* mice following immunization with human collagen type II (CII). PMID: 23116329
  47. Mutations in the gene encoding the type II collagen gene (COL2A1) cause a series of type II collagenopathies that manifest as inheritable skeletal disorders. PMID: 25124518
  48. An association between polymorphism in the COL2A1 gene and MP was observed. These results suggested that the COL2A1 gene could be a new susceptibility gene for use in the study of genetic risk factors for MP. PMID: 24386886
  49. In middle-aged women without clinical knee disease, higher uCTX-II levels were associated with early detrimental structural changes at the knee (cartilage defects, tibial bone expansion, and bone marrow lesions) at baseline but not over 2 years. PMID: 24971869
  50. This study identifies new variants to the repertoire of COL2A1 mutation resulting in related collagenopathies. PMID: 24949742
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Database Links

HGNC: 2200

OMIM: 108300

KEGG: hsa:1280

STRING: 9606.ENSP00000369889

UniGene: Hs.408182

Involvement In Disease
Spondyloepiphyseal dysplasia congenital type (SEDC); Spondyloepiphyseal dysplasia, Stanescu type (SEDSTN); Spondyloepimetaphyseal dysplasia, Strudwick type (SEMDSTWK); Achondrogenesis 2 (ACG2); Legg-Calve-Perthes disease (LCPD); Kniest dysplasia (KD); Avascular necrosis of femoral head, primary, 1 (ANFH1); Osteoarthritis with mild chondrodysplasia (OSCDP); Platyspondylic lethal skeletal dysplasia Torrance type (PLSD-T); Multiple epiphyseal dysplasia with myopia and conductive deafness (EDMMD); Spondyloperipheral dysplasia (SPD); Stickler syndrome 1 (STL1); Stickler syndrome 1 non-syndromic ocular (STL1O); Rhegmatogenous retinal detachment autosomal dominant (DRRD); Czech dysplasia (CZECHD)
Protein Families
Fibrillar collagen family
Subcellular Location
Secreted, extracellular space, extracellular matrix.
Tissue Specificity
Isoform 2 is highly expressed in juvenile chondrocyte and low in fetal chondrocyte.

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