粘蛋白4抗体,Anti-Mucin 4/Muc4保存条件 Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. The lyophilized antibody is stable at room temperature for at least one month and for greater than a year when kept at -20°C. When reconstituted in sterile pH 7.4 0.01M PBS or diluent of antibody the antibody is stable for at least two weeks at 2-4 °C.
Important Note This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
产品介绍 The major constituents of mucus, the viscous secretion that covers epithelial surfaces such as those in the trachea, colon, and cervix, are highly glycosylated proteins called mucins. These glycoproteins play important roles in the protection of the epithelial cells and have been implicated in epithelial renewal and differentiation. This gene encodes an integral membrane glycoprotein found on the cell surface, although secreted isoforms may exist. At least two dozen transcript variants of this gene have been found, although for many of them the full-length transcript has not been determined or they are found only in tumor tissues. This gene contains a region in the coding sequence which has a variable number (>100) of 48 nt tandem repeats. [provided by RefSeq].
Function : May play a role in tumor progression. Ability to promote tumor growth may be mainly due to repression of apoptosis as opposed to proliferation. Has anti-adhesive properties. Seems to alter cellular behavior through both anti-adhesive effects on cell-cell and cell-extracellular matrix interactions and in its ability to act as an intramembrane ligand for ERBB2. Plays an important role in cell proliferation and differentiation of epithelial cells by inducing specific phosphorylation of ERBB2. The MUC4-ERBB2 complex causes site-specific phosphorylation of the ERBB2 'Tyr-1248'. In polarized epithelilal cells segragates ERBB2 and other ERBB receptors and prevents ERBB2 from acting as a coreceptor. The interaction with ERBB2 leads to enhanced expression of CDKN1B. The formation of a MUC4-ERBB2-ERBB3-NRG1 complex leads to down-regulation of CDKN1B, resulting in repression of apoptosis and stimulation of proliferation.
Subunit : A heterodimeric complex, composed of a mucin-4 alpha chain and a cysteine-rich transmembrane mucin-4 beta chain. Mucin-4 beta chain interacts with ERBB2 via the EGF-like domain 1. In nonpolarized cells, associates with ERBB2 and ERBB3.
Subcellular Location : Membrane; Single-pass membrane protein (Potential). Secreted. Note=Isoforms lacking the Cys-rich region, EGF-like domains and transmembrane region are secreted. Secretion occurs by splicing or proteolytic processing.
Mucin-4 beta chain: Cell membrane; Single-pass membrane protein.
Mucin-4 alpha chain: Secreted.
Isoform 3, 17: Cell membrane; Single-pass membrane protein. Isoform 11, 15: Secreted.
Tissue Specificity : Expressed in the thymus, thyroid, lung, trachea, esophagus, stomach, small intestine, colon, testis, prostate, ovary, uterus, placenta, and mammary and salivary glands. Expressed in carcinomas arising from some of these epithelia, such as lung cancers, squamous cell carcinomas of the upper aerodigestive tract, mammary carcinomas, biliary tract, colon, and cervix cancers. Minimally or not expressed in the normal pancreas or chronic pancreatitis, but is highly expressed in pancreatic tumors and pancreatic tumor cell lines.
Post-translational modifications : Proteolytically cleaved into 2 chains, mucin-4 alpha chain and mucin-4 beta chain.
mucrnin-4 alpha chain is highly O-glycosylated.
mucin-4 beta chain is predominantly N-glycosylated.
Similarity : Contains 1 AMOP domain.
Contains 2 EGF-like domains.
Contains 1 NIDO domain.
Contains 1 VWFD domain.
Database links : UniProtKB/Swiss-Prot: Q99102.4
英文名称 Anti-Mucin 4/Muc4
中文名称 粘蛋白4抗体,Anti-Mucin 4/Muc4
别 名 Mucin4; Mucin-4; MUC-4; Ascites sialoglycoprotein; ASGP; Pancreatic adenocarcinoma mucin; Testis mucin; Tracheobronchial mucin; Mucin-4 alpha chain; Ascites sialoglycoprotein 1; ASGP-1; Mucin-4 beta chain; Ascites sialoglycoprotein 2; ASGP-2; Mucin 4 cell surface associated; Mucin 4 tracheobronchial; Tracheobronchial mucin Fragment.
浓 度 1mg/1ml
规 格 0.1ml/100μg 0.2ml/200μg
抗体来源 Rabbit
克隆类型 polyclonal
交叉反应 Human, Mouse, Rat
产品类型 一抗
研究领域 肿瘤 细胞生物 信号转导 细胞类型标志物 细胞骨架
蛋白分子量 predicted molecular weight: 239/595kDa
粘蛋白4抗体,Anti-Mucin 4/Muc4性 状 Lyophilized or Liquid
免 疫 原 KLH conjugated synthetic peptide derived from human Mucin-4 alpha chain
亚 型 IgG
纯化方法 affinity purified by Protein A
储 存 液 Preservative: 15mM Sodium Azide, Constituents: 1% BSA, 0.01M PBS, pH 7.4
产品应用 WB=1:100-500 ELISA=1:500-1000 IHC-P=1:100-500 IHC-F=1:100-500 Flow-Cyt=1:20-100 IF=1:50-200
(石蜡切片需做抗原修复)
not yet tested in other applications.
optimal dilutions/concentrations should be determined by the end user.