CENPJ Antibody, Biotin conjugated

Shipped with Ice Packs
In Stock

Description

Overview of CENPJ and Its Antibody

CENPJ (centromere protein J), also known as CPAP, LAP, or LIP1, belongs to the TCP10 protein family. It plays a pivotal role in centrosome function, ensuring proper centriole duplication and mitotic spindle assembly . The antibody targeting CENPJ is typically raised against recombinant human protein fragments (e.g., AA 1082-1248) and is conjugated with biotin for enhanced sensitivity in assays requiring streptavidin-mediated detection .

Key Features of CENPJ Antibody, Biotin Conjugated

CharacteristicDetails
Target ProteinCENPJ (153 kDa, 1338 amino acids)
Host/IsotypeRabbit IgG
ConjugationBiotin (for ELISA, Western blot, or immunoprecipitation)
ReactivityHuman, mouse, rat (validated in multiple species)
ImmunogenRecombinant human CENPJ fragments (e.g., AA 1082-1248)
PurificationAntigen affinity purification or Protein G chromatography
StoragePBS with 0.02% sodium azide and 50% glycerol (store at -20°C)

Applications in Research

The antibody is optimized for several techniques, with biotin conjugation enhancing its utility in assays requiring high sensitivity:

ApplicationDescription
ELISAQuantitative detection of CENPJ in lysates or serum
Western BlotDetection of CENPJ in cell lysates (suggested dilution: 1:500-1:1000)
ImmunoprecipitationIsolation of CENPJ complexes for downstream analysis
ImmunofluorescenceLocalization of CENPJ in centrosomes (dilution: 1:200-1:800)

Research Relevance

CENPJ antibodies are critical in studying centrosome biology and microcephaly-related pathways. For example:

  • A study using Proteintech’s 11517-1-AP antibody demonstrated CENPJ’s role in preventing microtubule overnucleation during mitosis .

  • Biotin-conjugated variants (e.g., ABIN7147363) enable high-throughput ELISA screens for CENPJ expression in disease models .

Product Specs

Buffer
Preservative: 0.03% Proclin 300
Constituents: 50% Glycerol, 0.01M PBS, pH 7.4
Form
Liquid
Lead Time
Typically, we can ship the products within 1-3 business days after receiving your order. Delivery time may vary depending on the purchasing method or location. For specific delivery times, please consult your local distributors.
Synonyms
BM032 antibody; CENP-J antibody; CENPJ antibody; CENPJ_HUMAN antibody; Centromere protein J antibody; Centrosomal P4.1-associated protein antibody; CPAP antibody; LAG-3-associated protein antibody; LAP antibody; LIP1 antibody; LYST interacting protein LIP1 antibody; LYST interacting protein LIP7 antibody; LYST-interacting protein 1 antibody; MCPH6 antibody; Sas 4 antibody; SASS4 antibody; SCKL4 antibody
Target Names
CENPJ
Uniprot No.

Target Background

Function
CENPJ antibody plays a crucial role in cell division and centrosome function by actively participating in centriole duplication. It effectively inhibits microtubule nucleation from the centrosome. This antibody is involved in regulating the slow, processive growth of centriolar microtubules. It acts as a microtubule plus-end tracking protein that stabilizes centriolar microtubules while inhibiting microtubule polymerization and extension from the distal ends of centrioles. CENPJ antibody is essential for centriole elongation and STIL-mediated centriole amplification. It's required for the recruitment of CEP295 to the proximal end of newly formed centrioles at the centriolar microtubule wall during early S phase, in a PLK4-dependent manner. This antibody might be involved in controlling centriolar-microtubule growth by acting as a regulator of tubulin release.
Gene References Into Functions
  1. CPAP (CENPJ) regulates the delivery of its bound beta-tubulin to define the size of microtubule-based cellular structures using a "clutch-like" mechanism. PMID: 27306797
  2. Research suggests that alcohol/ethanol exposure diminishes the pool of proliferative neurons (Neuro2a cell line) through the disruption of spindle orientation and the promotion of asymmetric cell division. These neuronal abnormalities seem to be caused by a reduced CENPJ protein expression level. PMID: 29778912
  3. CPAP-S467D protein exhibits a low affinity for microtubule binding but a high affinity for pericentriolar material proteins. PMID: 26997271
  4. CPAP promotes timely cilium disassembly to maintain the neural progenitor pool. Mutations in CPAP cause Seckel syndrome with microcephaly. PMID: 26929011
  5. Data indicates that the single G-box domain (which appears to fold into 14-20 antiparallel beta-strands) of CENPJ has a stable yet dynamic structure. CRAP forms multimers (in solution and in crystals) of elongated fibrils similar to amyloid fibrils. [REVIEW] PMID: 26517891
  6. Centrobin plays a significant role in the stability and centriole elongation function of CPAP and limits the centriole length. PMID: 25616662
  7. Studies provide the first structural insights into how the malfunction of centriole proteins leads to human disease and also reveal that the CPAP-STIL interaction represents a conserved key step in centriole biogenesis. PMID: 24052813
  8. The results demonstrated a human-specific hypomethylation in the 5' UTR of CENPJ in the brain, where methylation levels among humans are approximately one-third of those found in nonhuman primates. PMID: 24288161
  9. The Centrobin-CPAP interaction is crucial for the recruitment of CPAP to procentrioles to facilitate the elongation of daughter centrioles and for the persistence of CPAP on preexisting mother centrioles. PMID: 24700465
  10. CPAP depletion results in asymmetric spindle poles with uneven distribution of pericentriolar material. PMID: 24491538
  11. Sas-4 acts as a vehicle to tether PCM complexes to centrioles independent of its well-established role in centriole duplication. PMID: 24385583
  12. CEP120 associates with SPICE1 and CPAP, and depletion of any of these proteins results in short procentrioles. Moreover, CEP120 or CPAP overexpression leads to excessive centriole elongation, a process dependent on CEP120, SPICE1, and CPAP. PMID: 23810536
  13. SUMOylated CPAP could synergistically increase the HBx-induced NF-kappaB activity. PMID: 23369793
  14. CEP120 is a CPAP-interacting protein that positively regulates centriole elongation. PMID: 23857771
  15. Authors propose that CEP135 directly connects the central hub protein, hSAS-6, to the outer microtubules, and suggest that this interaction stabilizes the proper cartwheel structure for further CPAP-mediated centriole elongation. PMID: 23511974
  16. CPAP degradation and function are controlled by the poly(ADP-ribose) polymerase tankyrase 1. PMID: 22699936
  17. STIL and CPAP are essential for centriole formation and for proper spindle position. PMID: 22100914
  18. Results suggest that Cep152 recruits Plk4 and CPAP to the centrosome to ensure a faithful centrosome duplication process. PMID: 21059844
  19. Data establishes that mutation of CENPJ can lead to Seckel syndrome and calls for further investigation of the role played by other microcephaly-related genes in the pathogenesis of PD. PMID: 20522431
  20. Results identify centrosomal P4.1-associated protein (CPAP), a human homologue of SAS-4, as a substrate of PLK2 whose activity oscillates during the cell cycle. PMID: 20531387
  21. Cell cycle-regulated phosphorylation orchestrates the dynamics of CPAP molecular interaction and centrosome splitting to ensure genomic stability in cell division. PMID: 19889632
  22. CPAP was found to augment Stat5-mediated transcription. PMID: 12198240
  23. CPAP possesses a novel microtubule-destabilizing motif that not only inhibits microtubule nucleation from the centrosome but also depolymerizes taxol-stabilized microtubules. PMID: 15047868
  24. CPAP functions as a coactivator of NF-kappaB-mediated transcription. PMID: 15687488
  25. Mutations in the CENPJ gene are associated with autosomal recessive primary microcephaly. PMID: 15793586
  26. In conclusion, our findings reveal a structural role for CPAP in maintaining centrosome integrity and normal spindle morphology during cell division. PMID: 16316625
  27. In summary, our results demonstrate a direct interaction between CPAP and 14-3-3, and this interaction appears to be phosphorylation and cell cycle dependent. PMID: 16516142
  28. This research discusses CENPJ, which similarly exhibits a higher rate of protein evolution in primates compared to rodents and carnivores. PMID: 16631324
  29. High levels of LIP1 were found in the serum and synovial fluid of rheumatoid arthritis patients, providing evidence for a cytokine-like role. PMID: 18162190
  30. Mutations in this conserved sequence also eliminate d-SAS-4's microtubule-destabilizing activity, suggesting that d-SAS-4 and CPAP may play similar roles within cells. PMID: 18586240
  31. The PN2-3 fragment of CPAP is identified as a protein with an unprecedented tubulin sequestering mechanism distinct from that of stathmin family proteins. PMID: 19131341
  32. Results indicate that CPAP and CP110 play antagonistic roles in determining the extent of tubulin addition during centriole elongation, thereby controlling the length of newly formed centrioles. PMID: 19481458
  33. Data shows that CPAP is required for centrosome duplication in cycling human cells, and CPAP overexpression results in the formation of abnormally long centrioles. PMID: 19481460
  34. Results suggest that CPAP is a novel regulator of centriole length, and its intrinsic tubulin-dimer binding activity is required for procentriole elongation. PMID: 19503075
  35. This study identifies CENPJ as LYST-interacting proteins LIP1 and LIP7, which interact with the lysosomal trafficking regulator (LYST) protein. PMID: 11984006

Show More

Hide All

Database Links

HGNC: 17272

OMIM: 608393

KEGG: hsa:55835

STRING: 9606.ENSP00000371308

UniGene: Hs.513379

Involvement In Disease
Microcephaly 6, primary, autosomal recessive (MCPH6); Seckel syndrome 4 (SCKL4)
Protein Families
TCP10 family
Subcellular Location
Cytoplasm, cytoskeleton, microtubule organizing center, centrosome. Cytoplasm, cytoskeleton, microtubule organizing center, centrosome, centriole.

Quick Inquiry

Personal Email Detected
Please use an institutional or corporate email address for inquiries. Personal email accounts ( such as Gmail, Yahoo, and Outlook) are not accepted. *
© Copyright 2025 TheBiotek. All Rights Reserved.