Recombinant Human Catenin alpha-1(CTNNA1) ,partial

Code CSB-YP006164HU
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Source Yeast
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Code CSB-EP006164HU
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Source E.coli
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Code CSB-EP006164HU-B
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Source E.coli
Conjugate Avi-tag Biotinylated
E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
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Code CSB-BP006164HU
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Source Baculovirus
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Code CSB-MP006164HU
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Source Mammalian cell
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Product Details

Purity >85% (SDS-PAGE)
Target Names CTNNA1
Uniprot No. P35221
Alternative Names Alpha E-catenin; Cadherin associated protein 102kDa; Cadherin associated protein; Cadherin-associated protein; CAP 102; CAP102; Catenin (cadherin associated protein) alpha 1 102kDa; Catenin (cadherin associated protein), alpha 1, 102kDa; Catenin alpha 1; Catenin alpha-1; CTNA1_HUMAN; CTNNA 1; Ctnna1; FLJ36832; FLJ52416; MDPT2; NY REN 13 antigen; OTTHUMP00000224141; OTTHUMP00000224147; Renal carcinoma antigen NY REN 13; Renal carcinoma antigen NY-REN-13
Species Homo sapiens (Human)
Protein Length Partial
Tag Info The following tags are available.
N-terminal His-tagged
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Form Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer before Lyophilization Tris/PBS-based buffer, 6% Trehalose, pH 8.0
Reconstitution We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
and FAQs
Protein FAQs
Storage Condition Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet Please contact us to get it.

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Target Background

Associates with the cytoplasmic domain of a variety of cadherins. The association of catenins to cadherins produces a complex which is linked to the actin filament network, and which seems to be of primary importance for cadherins cell-adhesion properties. Can associate with both E- and N-cadherins. Originally believed to be a stable component of E-cadherin/catenin adhesion complexes and to mediate the linkage of cadherins to the actin cytoskeleton at adherens junctions. In contrast, cortical actin was found to be much more dynamic than E-cadherin/catenin complexes and CTNNA1 was shown not to bind to F-actin when assembled in the complex suggesting a different linkage between actin and adherens junctions components. The homodimeric form may regulate actin filament assembly and inhibit actin branching by competing with the Arp2/3 complex for binding to actin filaments. Involved in the regulation of WWTR1/TAZ, YAP1 and TGFB1-dependent SMAD2 and SMAD3 nuclear accumulation. May play a crucial role in cell differentiation.
Gene References into Functions
  1. These findings provide mechanistic insight into the WNT-mediated regulation of the DNA damage response and suggest a novel role for the alpha-catenin-beta-catenin complex in the nucleus. PMID: 28348105
  2. pseudogene CTNNAP1 is a potential tumor suppressor participating in CRC pathogenesis by competing with the parent gene CTNNA1 for microRNA-141. PMID: 27487124
  3. Hypermethylation of the CTNNA1 promoter was associated with unfavorable karyotype, and possessed the higher frequency of coexisting with ASXL1 and RUNX1 mutations. PMID: 27129146
  4. The results of this study demonstrate that causative variants identified in the CTNNA1 and CYP4V2 genes are also associated with Leber Congenital Amaurosis. PMID: 28453600
  5. alpha- and beta-catenins may be important in the early stages of phyllodes tumours development, while E-cadherin may be required for malignant development PMID: 22571452
  6. This work identified alpha-catenin as another molecule in addition to E- and P-cadherin that were targeted to inactivate homotypic cell-in-cell structures formation in human tumor cells. PMID: 26192076
  7. Progressive loss of e-cadherin/alpha-catenin expression is associated with an aggressive phenotype (low differentiation, increased metastatic activity/advanced stage) in thyroid carcinomas. PMID: 27273957
  8. study identifies CTNNA1 gene variants as a cause of macular dystrophy, indicates that CTNNA1 is involved in maintaining RPE integrity PMID: 26691986
  9. The results demonstrate a Fas-mediated apoptotic signaling pathway that is enhanced by the age-dependent loss of alpha(E)-catenin in renal tubule epithelial cells. PMID: 25894537
  10. Actin-dependent CTNNA1 clustering is a unique molecular mechanism mediating both integrity and reassembly of the cell-cell adhesive interface formed through weak cis- and trans-intercadherin interactions. PMID: 26261181
  11. alpha-catenin is a reversible, stretch-activatable sensor that mechanically links cadherin complexes and actin and is an indispensable player in cadherin-specific mechanotransduction at intercellular junctions. PMID: 25544608
  12. alpha-catenin functions as a tumor suppressor in E-cadherin-negative basal like breast cancer cells by inhibiting NF-kappaB signaling. PMID: 25483184
  13. CTNNA1 hypermethylation was detected in three out of four with isolated del(5q), one with trisomy 11, one with monosomy 7, one out of four with del(20q), and one out of seven with complex abnormalities, but in none with trisomy 8. PMID: 25153418
  14. CTNNA1 methylation is a recurrent event but has no influence on prognosis in acute myeloid leukemia PMID: 24685333
  15. CTNNA1 expression is specifically downregulated in basal-like breast cancer subtype, correlates with clinical outcome and inversely correlates with TNF and RELB expression. PMID: 24509793
  16. A germline truncating allele of alpha-E-catenin (CTNNA1) was identified that was present in two family members with invasive diffuse gastric cancer and four in which intramucosal signet ring cells were detected as part of endoscopic surveillance. PMID: 23208944
  17. A discrete trimeric complex of beta-catenin, alpha-catenin and the tumor suppressor APC, forms in the cytoplasm in response to Wnt signaling. PMID: 22469663
  18. Data show that E-cadherin and alpha-catenin were predominantly expressed in the cell membranes, whereas beta- and gamma-catenin were found both in the cell membrane and cytoplasm. PMID: 20933443
  19. The expressions of E-cd and alpha-cat are significantly lower in prostate cancer than in benign prostatic hyperplasia, and they are not associated with cancerous metastasis, but negatively correlated with the PSA level in PCa patients. PMID: 22774602
  20. study presents evidence that in the cadherin-catenin complex alpha-catenin contributes to the binding strength of another catenin, p120, to the same complex; data suggest alpha-catenin-p120 contact within the cadherin-catenin complex can regulate cadherin trafficking PMID: 21937720
  21. binding studies suggest that vinculin must be in an activated state to bind to alpha-catenin and that this interaction is stabilized by the formation of a ternary alpha-catenin-vinculin-F-actin complex, which can be formed via the F-actin binding domain PMID: 22493458
  22. Report loss of CTNNA1 as lobular carcinoma in situ of the breast progresses to more invasive lesions. PMID: 22080244
  23. Data demonstrate that the expression of alpha-E-catenin is increased by Sec6 siRNAs, and E-cadherin and beta-catenin localize mainly at the cell-cell contact region in HSC3 cells, which were transfected with Sec6 siRNA. PMID: 22381337
  24. The expression of alpha-catenin was significantly lower in the invasive group than in the non-invasive group of pituitary adenoma. PMID: 16927799
  25. These results suggest that JNK affects the association of alpha-catenin with the adherens junction complex and regulates adherens junctions. PMID: 21030692
  26. 4 biallelic inactivating alpha-catenin mutations were found among 55 human breast cancer cell lines. All caused premature termination. Loss of alpha-catenin protein expression was associated with the lobular subtype in primary breast cancers. PMID: 19763817
  27. The E-cadherin-catenin complex is the factor indicative of metastasis and disease progression in gastric cancer. PMID: 20529814
  28. The study objective was to assess changes in the expressions of E-cadherin and alpha-, beta- and gamma-catenin proteins in pancreatic duct carcinoma in correlation with clinicopathological parameters, lymph node involvement and distant metastases. PMID: 20529828
  29. Data show that actin bundle formation and subsequent linkage between actin bundles and VE-cadherin through alpha- and beta-catenins are important for the stabilization of VE-cadherin at the cell-cell contacts in cAMP-Epac-Rap1 signal-activated cells. PMID: 20032304
  30. An evolutionarily conserved PTEN-C/EBPalpha-CTNNA1 axis controls myeloid development and transformation. PMID: 20371743
  31. results show that the association of alpha-catenin with the cadherin-catenin complex is required for efficient leukocyte transendothelial migration PMID: 19918298
  32. Abnormal E-cadherin and alpha-catenin and beta-catenin in pancreatic carcinoma tissues. Abnormal E-cadherin and alpha-catenin with differentiation, lymph node and liver metastases. Aberrant beta-catenin with lymph node and liver metastases. PMID: 12532469
  33. Pancreatic cancer likely occurs in case of the inactivation of E-cadherin and alpha-catenin genes and abnormal expression of proteins PMID: 14599963
  34. alpha-catenin has a role in cell growth control in three-dimensional culture PMID: 14755240
  35. Allelic imbalance occurs at two distinct regions of which one includes the CTNNA1 gene in ovarian cancer. PMID: 15297182
  36. Our results suggest that alpha-catenin links CCR5 and CXCR4 to the cytoskeleton and is involved in the organization of these receptors at the membrane, thereby possibly affecting HIV-1 infection. PMID: 15541354
  37. ubiquitin-independent degradation of alpha-catenin regulates beta-catenin signaling and maintenance of the differentiated phenotype of articular chondrocytes PMID: 15695815
  38. Loss of expression in squamous cell carcinoma of the floor of the mouth correlated significantly with poor prognosis PMID: 15916880
  39. Downregulation of alpha-catenin expression is common in gastric carcinoma PMID: 15948257
  40. These results indicate that the interaction of alpha-catenin and actin functions in the assembly of desmosomes in epithelial cells. PMID: 16273278
  41. Cdc42 regulates AJ permeability by controlling the binding of alpha-catenin with beta-catenin and the consequent interaction of the VE-cadherin/catenin complex with the actin cytoskeleton. PMID: 16322481
  42. Direct attachment of alpha-catenin to F-actin is required to promote cadherin-mediated contact formation and strong cell-cell adhesive states. PMID: 16798615
  43. we explored the implication of three proteins (E-cadherin, a- and b-catenins) that form the cadherin-catenin complex, a receptorial structure strictly involved in tumoral vascular invasion and embolization in this biologic event PMID: 17576040
  44. The previously reported characteristics of this mutation, E-cadherin (V832M) do not apply to human epithelial cells expressing this mutant protein. PMID: 17668349
  45. prognostic and chemosensitivity marker for invasive bladder cancer PMID: 17760743
  46. removal of N-glycans on E-cadherin resulted in elevated tyrosine phosphorylation level of beta-catenin and reduced beta- and alpha-catenins at adherens junctions PMID: 17979184
  47. These results suggest induction of SRF-mediated transcription by alpha(E)-catenin either downstream of RhoA or via a parallel pathway. PMID: 18078809
  48. Rsults suggest that the lower epithelial alpha-catenin, E-cadherin and (or) ZO-1 expression in patients with atopic asthma contributes to a defective airway epithelial barrier and a higher influx of eosinophils in the epithelium. PMID: 18418437
  49. This study reveals for the first time that alpha-catenin is a key regulator of beta-catenin transcriptional activity and that the status of alpha-catenin expression in tumor tissues might have prognostic value for Src targeted therapy PMID: 18566211
  50. The mean values of the percentage of positive cells for the tested proteins between E-AD vs. AD did not demonstrate any statistically significant difference except for alpha-catenin. PMID: 19124205

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Involvement in disease Macular dystrophy, patterned, 2 (MDPT2)
Subcellular Location [Isoform 1]: Cytoplasm, cytoskeleton. Cell junction, adherens junction. Cell membrane; Peripheral membrane protein; Cytoplasmic side. Cell junction. Note=Found at cell-cell boundaries and probably at cell-matrix boundaries.; [Isoform 3]: Cell membrane; Peripheral membrane protein; Cytoplasmic side.
Protein Families Vinculin/alpha-catenin family
Tissue Specificity Expressed ubiquitously in normal tissues.
Database Links

HGNC: 2509

OMIM: 116805

KEGG: hsa:1495

STRING: 9606.ENSP00000304669

UniGene: Hs.445981

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