Recombinant Human Inhibin beta A chain (INHBA) (Active)

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Code CSB-AP004011HU
Size $290
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Product Details

Greater than 95% as determined by SDS-PAGE.
Less than 1.0 EU/μg as determined by LAL method.
The ED50 measured by its ability to induce SMAD signaling in 293-Activin A Res cells is less than 2ng/ml
Target Names
Uniprot No.
Research Area
Alternative Names
Activin beta-A chain; EDF; Erythroid differentiation factor; Erythroid differentiation protein; Follicle stimulating hormone releasing protein; FRP; FSH releasing protein; INHBA; INHBA_HUMAN; Inhibin beta A chain; Inhibin beta A subunit; Inhibin, beta 1; Inhibin, beta A (activin A, activin AB alpha polypeptide)
Homo sapiens (Human)
Mammalian cell
Expression Region
Complete Sequence
Mol. Weight
13 kDa
Protein Length
Full Length of Mature Protein
Tag Info
Liquid or Lyophilized powder
Lyophilized from a 0.2 μm filtered solution of 4mM HCl.
Troubleshooting and 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
Basically, we can dispatch the products out in 1-3 working days after receiving your orders. 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.
Datasheet & COA
Please contact us to get it.

Customer Reviews and Q&A

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Target Background

Inhibins and activins inhibit and activate, respectively, the secretion of follitropin by the pituitary gland. Inhibins/activins are involved in regulating a number of diverse functions such as hypothalamic and pituitary hormone secretion, gonadal hormone secretion, germ cell development and maturation, erythroid differentiation, insulin secretion, nerve cell survival, embryonic axial development or bone growth, depending on their subunit composition. Inhibins appear to oppose the functions of activins.
Gene References into Functions
  1. pro-activin A share features seen in the pro-TGF-beta1 and pro-BMP-9 structures. PMID: 27373274
  2. Data suggest that activin A (INHBA) plays roles in inflammation, tissue repair, fibrosis, neoplastic activation of myofibroblasts, and leiomyoma development/growth. [REVIEW] PMID: 29100238
  3. that high expression of INHBA was associated with poor response to therapy for de novo AML, and it can serve as an adverse prognostic factor for this malignancy. PMID: 28836868
  4. Activin-A may induce fibrosis in NASH and alcoholic cirrhosis via activation of Kupffer cells to express pro-inflammatory molecules that promote HSC-dependent fibrogenesis and could be a target for future anti-fibrotic therapies. PMID: 29287776
  5. Our study provided experimental and clinical evidence for the involvement of activin A and ALK4 in the pathophysiology of atrial fibrosis and atrial fibrillation PMID: 28639003
  6. INHBA gene expression in gastric cancer tissue is considered a useful independent predictor of outcomes in patients with stage II/III gastric cancer who receive adjuvant chemotherapy with S-1. PMID: 28652421
  7. Inhibin-B secretion and FSH isoform distribution may play an integral part of follicular selection in the natural menstrual cycle. (Review) PMID: 27756855
  8. The present study was undertaken to evaluate the distribution of the FSHB -211 G/T in men with normal or abnormal sperm parameters from Southern Italy to assess its functional relevance on the serum levels of reproductive hormones and on sperm parameters in men. PMID: 28281143
  9. binding of SMAD2/3, the intracellular effectors of activin signaling, was significantly enriched at the Pmepa1 gene, which encodes a negative feedback regulator of TGF-beta signaling in cancer cells, and at the Kdm6b gene, which encodes an epigenetic regulator promoting transcriptional plasticity. PMID: 26215835
  10. analysis of a novel SMAD-independent pathway linking enhanced activin B signaling to reduced E-cadherin expression and increased migration in type II endometrial cancer PMID: 27223076
  11. High INHBA expression is associated with lung adenocarcinoma. PMID: 26950277
  12. activin A signaling has a role in melanoma growth and metastasis through immune evasion PMID: 28844941
  13. These data provide evidence that eosinophils release activin A and that this function is enhanced when eosinophils are present in an allergen-induced inflammatory environment. PMID: 27001469
  14. These results demonstrate that activin induces skin carcinogenesis via attraction and reprogramming of macrophages and identify novel activin targets involved in tumor formation. PMID: 27932444
  15. our results defined a novel pathway in which dysregulation of the RUNX2/INHBA axis due to miR-376c downregulation fosters lymph node metastasis in head and neck squamous cell carcinoma PMID: 27760788
  16. The activin-A to follistatin ratio may play a role in determining the clinical phenotype of preterm birth as preterm labor or preterm premature rupture of membranes. PMID: 27159193
  17. A screen of a human protein library identified activin A as a potent regulator of follicular helper T cells cell differentiation. PMID: 27376469
  18. Activin A is higher in patients with steatohepatitis than both lean and obese controls PMID: 27621190
  19. INHBA expression is significantly upregulated in human masticatory mucosa during wound healing PMID: 28005267
  20. Activin A and preeclamptic serum upregulate ET-1, ICAM-1, and VCAM-1 in human umbilical vein endothelial cells, consistent with activin A contributing to the pathophysiology of preeclampsia. PMID: 27155341
  21. Data show that dedifferentiated chondrocytes can be redifferentiated following treatment with the chimeric erythroid differentiation factor (activin A)/bone morphogenetic protein 2 (BMP2) ligand AB235. PMID: 26563344
  22. Study shows that INHBA and FST are induced by seminal fluid in cervical tissues and thus, may contribute to regulation of the post-coital response in women. PMID: 26415587
  23. Inhibin betaA is translationally regulated by TGFbeta via hnRNP E1. PMID: 26096938
  24. we show a role for autocrine Activin signaling in the regulation of colony formation, cell migration and invasion in Barrett's tumorigenesis. PMID: 26447543
  25. Our study uncovers the PITX2-induced expression of TGFB1/2/3 as well as INHBA genes (p < 0.01) followed by SMAD2/3-dependent TGF-b signalling pathway in ovarian cancer cells PMID: 26298390
  26. changes in Follistatin levels during pregnancy contribute to the control of the activin A system PMID: 25565002
  27. Overexpression of activin A in OSCCs, which is controlled by downregulation of miR-143/miR-145 cluster, regulates apoptosis, proliferation and invasiveness, and it is clinically correlated with lymph node metastasis and poor survival. PMID: 26317418
  28. Activin A inhibited signaling by BMP-6 and BMP-9 by competing for type 2 receptors ACVR2A and ACVR2B. PMID: 26047946
  29. Data suggest that activin A [plus bone morphogenic protein 4 (BMP4)] strongly stimulates germ cell differentiation potential of human embryonic stem cells; this stimulation appear to depend on gene expression regulation by activin A. PMID: 25634576
  30. Increased serum level of activin A indicates its role in the pathogenesis of asthma, particularly in underweight and overweight patients. PMID: 25729977
  31. Data suggest that an SNP in promoter region of ACVR2A (activin A receptor type IIA; rs1424954, the pre-eclampsia susceptibility allele) down-regulates signal transduction in trophoblasts in response to excess activin-A (as seen in pre-eclampsia). PMID: 25659497
  32. able to restore glucose-stimulated insulin secretion in islets from type 2 diabetic donors PMID: 25833251
  33. our study suggests that increased circulating concentrations of ActA may contribute to the development of cachexia in cancer patients. PMID: 25751105
  34. Low activin-A expression was correlated with the occurrence, development, metastasis and malignant degree of lung adenocarcinoma. PMID: 25796148
  35. Data suggest that activin A (dimer of INHBA), especially in lateral hypothalamus, plays role in neuronal sensing of free amino acids, appetite regulation, and neuronal plasticity. [REVIEW] PMID: 25200295
  36. Activin-A and -B are abundantly expressed in mesothelioma tumor tissue. PMID: 25557874
  37. INHBA overexpression implies adverse clinical outcomes for urothelial carcinoma, justifying it is a potential prognostic biomarker and a novel therapeutic target in UC PMID: 25488476
  38. overexpression of INHBA in mesenchymal cells increases colony formation potential of epithelial cells, suggesting that it contributes to the dynamic reciprocity between breast mesenchymal and epithelial cells. PMID: 24916766
  39. Activin A promoted chemotaxis, migration and proliferation of human periodontal ligament cells, and caused an increase in fibroblastic differentiation of these cells while down-regulating their osteoblastic differentiation. PMID: 24928494
  40. High activin A signal promotes cancer progression and is involved in cachexia in a subset of pancreatic cancer. PMID: 25449777
  41. Activin A is an anti-lymphangiogenic factor, but because of its pleiotropic effects on cell mobility it appears not suitable as a pharmacological target. PMID: 25084052
  42. Activin A, B, and AB have similar effects on steroidogenesis in human granulosa cells; in contrast, activin AC is not biologically active and does not act as a competitive antagonist. PMID: 25062451
  43. expression of erythroid differentiation regulator 1 was negatively correlated with the malignant potential in various skin tumors. PMID: 24168163
  44. Endothelial cells initiate a smooth muscle cell differentiation program in adjacent adipose stromal cells via induction activin A expression. PMID: 25114097
  45. We identified an unreported germline mutation of the INHA gene encoding the alpha-subunit, the partner of the betaA-subunit. This mutation also alters the secreted activin/inhibin ratio, by disrupting both inhibin A and inhibin B biosynthesis. PMID: 24302632
  46. Circulating activin A levels are associated with impaired myocardial glucose metabolism and high left ventricular mass/volume ratio in men with uncomplicated type 2 diabetes, reflecting a potential detrimental role in early human diabetic cardiomyopathy. PMID: 24134550
  47. Follistatin, by its ability to neutralize the actions of activin A may be of value as an antifibrotic for radiation induced fibrosis. PMID: 24204752
  48. the Activin/ALK4 pathway directly recruits PTP1B and stimulates its release from the endoplasmic reticulum through ALK4-mediated cleavage. PMID: 24139759
  49. Activin A released from EAT-T2D inhibits insulin action via the induction of miR-143 in cardiomyocytes PMID: 23812417
  50. Overexpression of the INHBA gene is considered a useful independent predictor of outcomes in patients with gastric cancer after curative surgery. PMID: 24778035

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Subcellular Location
Protein Families
TGF-beta family
Database Links

HGNC: 6066

OMIM: 147290

KEGG: hsa:3624

STRING: 9606.ENSP00000242208

UniGene: Hs.28792

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