| 产品编号 | bs-2160R |
| 英文名称 | Rabbit Anti-COL4A3/Tumstatin antibody |
| 中文名称 | 肿瘤抑素抗体 |
| 别 名 | Collagen alpha-3(IV) chain; Alpha 3 type IV collagen; Alpha3 type IV collagen; COL4A 3; Collagen IV alpha 3 polypeptide; Collagen type IV alpha 3 (Goodpasture antigen); Collagen type IV alpha 3; Goodpasture antigen; OTTHUMP00000195044; Col4a3; CO4A3_HUMAN. |
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Specific References (1) | bs-2160R has been referenced in 1 publications.
[IF=2.56] Yasuda, Jumpei, et al. "T3 peptide, a fragment of tumstatin, stimulates proliferation and migration of cardiac fibroblasts through activation of Akt signaling pathway." Naunyn-Schmiedeberg's Archives of Pharmacology(2017): 1-10. WB ; Rat.
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| 研究领域 | 肿瘤 胶原蛋白 |
| 抗体来源 | Rabbit |
| 克隆类型 | Polyclonal |
| 交叉反应 | Mouse (predicted: Human,Rat) |
| 产品应用 | IHC-P=1:100-600,IHC-F=1:100-600,IF=1:100-600,ELISA=1:5000-10000
not yet tested in other applications. optimal dilutions/concentrations should be determined by the end user. |
| 细胞定位 | 细胞膜 细胞外基质 分泌型蛋白 |
| 性 状 | Liquid |
| 浓 度 | 1mg/ml |
| 免 疫 原 | KLH conjugated synthetic peptide derived from human Tumstatin / Collagen alpha-3(IV) chain: 1571-1670/1670 |
| 亚 型 | IgG |
| 纯化方法 | affinity purified by Protein A |
| 缓 冲 液 | 0.01M TBS (pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol. |
| 保存条件 | Shipped at 4℃. Store 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. |
| PubMed | PubMed |
| 产品介绍 |
Type IV collagen, the major structural component of basement membranes, is a multimeric protein composed of 3 alpha subunits. These subunits are encoded by 6 different genes, alpha 1 through alpha 6, each of which can form a triple helix structure with 2 other subunits to form type IV collagen. This gene encodes alpha 3. In the Goodpasture syndrome, autoantibodies bind to the collagen molecules in the basement membranes of alveoli and glomeruli. The epitopes that elicit these autoantibodies are localized largely to the non-collagenous C-terminal domain of the protein. A specific kinase phosphorylates amino acids in this same C-terminal region and the expression of this kinase is upregulated during pathogenesis. This gene is also linked to an autosomal recessive form of Alport syndrome. The mutations contributing to this syndrome are also located within the exons that encode this C-terminal region. Like the other members of the type IV collagen gene family, this gene is organized in a head-to-head conformation with another type IV collagen gene so that each gene pair shares a common promoter. [provided by RefSeq, Jun 2010] Function: Type IV collagen is the major structural component of glomerular basement membranes (GBM), forming a 'chicken-wire' meshwork together with laminins, proteoglycans and entactin/nidogen. Tumstatin, a cleavage fragment corresponding to the collagen alpha 3(IV) NC1 domain, possesses both anti-angiogenic and anti-tumor cell activity; these two anti-tumor properties may be regulated via RGD-independent ITGB3-mediated mechanisms. Subunit: here are six type IV collagen isoforms, alpha 1(IV)-alpha 6(IV), each of which can form a triple helix structure with 2 other chains to generate type IV collagen network. The alpha 3(IV) chain forms a triple helical protomer with alpha 4(IV) and alpha 5(IV); this triple helical structure dimerizes through NC1-NC1 domain interactions such that the alpha 3(IV), alpha 4(IV) and alpha 5(IV) chains of one protomer connect with the alpha 5(IV), alpha 4(IV) and alpha 3(IV) chains of the opposite promoter, respectively. Interacts with COL4A3BP AND ITGB3. Associates with LAMB2 at the neuromuscular junction and in GBM. Subcellular Location: Secreted, extracellular space, extracellular matrix, basement membrane. Note=Colocalizes with COL4A4 and COL4A5 in GBM, tubular basement membrane (TBM) and synaptic basal lamina(BL). Tissue Specificity: Alpha 3 and alpha 4 type IV collagens are colocalized and present in kidney, eye, basement membranes of lens capsule, cochlea, lung, skeletal muscle, aorta, synaptic fibers, fetal kidney and fetal lung. PubMed:8083201 reports similar levels of expression of alpha 3 and alpha 4 type IV collagens in kidney, but PubMed:7523402 reports that in kidney levels of alpha 3 type IV collagen are significantly lower than those of alpha 4 type IV collagen. According to PubMed:8083201, alpha 3 type IV collagen is not detected in heart, brain, placenta, liver, pancreas, extrasynaptic muscle fibers, endoneurial and perineurial nerves, fetal brain, fetal heart and fetal liver. According to PubMed:7523402, alpha 3 type IV collagen is strongly expressed in pancreas, neuroretina and calvaria and not expressed in adrenal, ileum and skin. Isoform 1 and isoform 3 are strongly expressed in kidney, lung, suprarenal capsule, muscle and spleen, in each of these tissues isoform 1 is more abundant than isoform 3. Isoform 1 and isoform 3 are expressed at low levels in artery, fat, pericardium and peripherical nerve, but not in placenta, mesangium, skin, pleura and cultured umbilical endothelial cells. Post-translational modifications: Prolines at the third position of the tripeptide repeating unit (G-X-Y) are hydroxylated in some or all of the chains. Isoform 2 contains an additional N-linked glycosylation site. Type IV collagens contain numerous cysteine residues which are involved in inter- and intramolecular disulfide bonding. 12 of these, located in the NC1 domain, are conserved in all known type IV collagens. The trimeric structure of the NC1 domains is stabilized by covalent bonds between Lys and Met residues (By similarity). Phosphorylated by the Goodpasture antigen-binding protein/COL4A3BP. DISEASE: Note=Autoantibodies against the NC1 domain of alpha 3(IV) are found in Goodpasture syndrome, an autoimmune disease of lung and kidney. Defects in COL4A3 are a cause of Alport syndrome autosomal recessive (APSAR) [MIM:203780]. APSAR is characterized by progressive glomerulonephritis, glomerular basement membrane defects, renal failure, sensorineural deafness and specific eye abnormalities (lenticonous and macular flecks). The disorder shows considerable heterogeneity in that families differ in the age of end-stage renal disease and the occurrence of deafness. Defects in COL4A3 are a cause of benign familial hematuria (BFH) [MIM:141200]; also known as thin basement membrane nephropathy. BFH is characterized by persistent hematuria, an electron microscopically detectable thin glomerular basement membrane (GBM) and an autosomal dominant mode of inheritance. Renal function remains normal. In children, differentiation between BFH and AS can be difficult, because both disorders are manifested by persistent hematuria and thin GBM at that age. Defects in COL4A3 are a cause of Alport syndrome autosomal dominant (APSAD) [MIM:104200]. Alport syndrome is characterized by progressive glomerulonephritis, glomerular basement membrane defects, renal failure, sensorineural deafness and specific eye abnormalities (lenticonous and macular flecks). The disorder shows considerable heterogeneity in that families differ in the age of end-stage renal disease and the occurrence of deafness. Similarity: Belongs to the type IV collagen family. Contains 1 collagen IV NC1 (C-terminal non-collagenous) domain. SWISS: Q01955 Gene ID: 1285 Database links: Entrez Gene: 1285 Human Omim: 120070 Human SwissProt: Q01955 Human Unigene: 570065 Human 肿瘤抑素（Tumstatin）是来源于血管基底膜Ⅳ型胶原的肿瘤血管生成抑制因子，一种自然产生的大分子多肽蛋白，特异性结合αvβ3整合素受体选择性抑制肿瘤血管内皮细胞的增殖和迁移，能够抑制原始血管外生长出新的血管，从而抑制肿瘤生长、增值，肿瘤抑素具有很强的生物学效应。 |
| 产品图片 |
Paraformaldehyde-fixed, paraffin embedded (mouse lung tissue); Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15min; Block endogenous peroxidase by 3% hydrogen peroxide for 20 minutes; Blocking buffer (normal goat serum) at 37°C for 30min; Antibody incubation with (COL4A3) Polyclonal Antibody, Unconjugated (bs-2160R) at 1:400 overnight at 4°C, followed by operating according to SP Kit(Rabbit) (sp-0023) instructionsand DAB staining.
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| 1、抗体溶解方法 | |
| 2、抗体修复方式 | |
| 3、常用试剂的配制 | |
| 4、免疫组化操作步骤 | |
| 5、免疫组化问题解答 | |
| 6、Western Blotting 操作步骤 | |
| 7、Western Blotting 问题解答 | |
| 8、关于肽链的设计 | |
| 9、多肽的溶解与保存 | |
| 10、酶标抗体效价测定程序 | |
