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- bs-22235P
- 2025年10月16日
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500ug
| 产品编号 | bs-22235P |
| 英文名称 | Mafa Antibody Blocking Peptide |
| 中文名称 | v-maf 肌腱膜纤维肉瘤癌基因同源物A封闭多肽 |
| 英文别名 | Mafa homolog; V-maf musculoaponeurotic fibrosarcoma oncogene homolog A; Pancreatic beta-cell-specific transcriptional activator;(avian)(V-maf musculoaponeurotic fibrosarcoma oncogene homolog A; MAFA_HUMAN. |
| 纯化方法 | HPLC |
| 研究领域 | Epigenetics and Nuclear Signaling > Transcription > Co-factors Epigenetics and Nuclear Signaling > Transcription > Other factors Signal Transduction > Growth Factors/Hormones > Insulin / Insulin-like |
| 亚基 | Binds DNA as a homodimer. Interacts with PCAF. Interacts with NEUROD1 and PDX1. |
| 亚细胞定位 | Nucleus. Note=Detected in nuclei of pancreas islet beta cells. |
| 组织特异性 | Selectively expressed in pancreatic beta but not in alpha cells (at protein level). Expressed in eyes and at low levels in thymus. Expressed in brain, lung, spleen and kidney. Expressed in embryo. |
| 翻译后修饰 | Ubiquitinated, leading to its degradation by the proteasome.
Phosphorylation by GSK3 requires prior phosphorylation of Ser-65 by another kinase. Phosphorylation proceeds then from Ser-61 to Thr-57, Thr-53 and Ser-49. GSK3-mediated phosphorylation increases its transcriptional activity through the recruitment of the coactivator PCAF, is required for its transforming activity and leads to its degradation through an ubiquitin/proteasome-dependent pathway. Ser-14 and Ser-65 appear to be the major phosphorylation sites. Phosphorylated by MAPK13 on serine and threonine residues (Probable). |
| 相似性 | Belongs to the bZIP family. Maf subfamily. Contains 1 bZIP (basic-leucine zipper) domain. |
| 功能 | Acts as a transcriptional factor. Specifically binds the insulin enhancer element RIPE3b. Cooperates synergistically with NEUROD1 and PDX1. Phosphorylation by GSK3 increases its transcriptional activity and is required for its oncogenic activity. Regulates the insulin gene transcription. Involved either as an oncogene or as a tumor suppressor, depending on the cell context. |
| 保存条件 | Shipped at 4℃. Stored at -20℃ for one year. Avoid repeated freeze/thaw cycles. |
| 注意事项 | This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. |
| 背景资料 | Insulin gene expression is regulated by several islet-enriched transcription factors. However, MAFA is the only beta cell-specific activator. MAFA selectively induces endogenous insulin transcription in non-beta cells. MAFA was also first detected in the insulin-producing cells formed during the second and predominant phase of beta cell differentiation, and absent in the few insulin-positive cells found in Nkx6.1(-/-) pancreata, which lack the majority of second-phase beta cells. These results demonstrate that MAFA is a potent insulin activator that is likely to function downstream of Nkx6.1 during islet insulin-producing cell development. |
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文献和实验or from the literature are missing. In this article, processing parameters for DNA, peptide, antibody, and carbohydrate microarrays are outlined. The applicability of the model experiments is demonstrated and described in detail on the example of short oligonucleotides.
Synthesis and Probing of Membrane-bound Peptide Arrays
the stringency of the blocking conditions and make sure that the primary binding partner and detection reagent (e.g., antibody) are of high purity and are used in the highest possible dilution. Stage
Mapping Protein‐Protein Interactions with Phage‐Displayed Combinatorial Peptide Libraries
. Fack, F., Deroo, S., Kreis, S., and Muller, C.P. 2000. Heteroduplex mobility assay (HMA) pre‐screening: An improved strategy for the rapid identification of inserts selected from phage‐displayed peptide
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