基本信息：

中文名称：

ActivAbTMITCH 抗体封闭肽

英文名称：

ActivAbTMITCH Antibody Blocking Peptide

别名：

ADMFD,AIF4,AIP4,Atrophin 1 interacting protein 4,Atrophin-1-interacting protein 4,dJ468O1.1,dJ468O1.1 (atrophin 1 interacting protein 4 (AIP4)),dJ468O1.1 atrophin 1 interacting protein 4 AIP4,E3 ubiquitin protein ligase Itchy homolog,E3 ubiquitin-protein ligase Itchy homolog,EC 6.3.2,Itch,ITCH_HUMAN,Itchy E3 ubiquitin protein ligase,Itchy E3 ubiquitin protein ligase homolog,Itchy E3 ubiquitin protein ligase homolog mouse,Itchy E3 ubiquitin protein ligase,mouse,homolog of,Itchy homolog E3 ubiquitin protein ligase,Itchy mouse homolog E3 ubiquitin protein ligase,NAPP1,NFE2 associated polypeptide 1,NFE2-associated polypeptide 1,Ubiquitin protein ligase ITCH

外观(性状)：

Lyophilized powder

来源：

Synthetic

储存条件：

Store at -20°C. Avoid freeze / thaw cycles.

运输条件：

冷冻运输

规格：

500ug



生物活性：

应用：

Blocking Peptide of K111513P Antibody

纯化方法：

HPLC

背景说明：

Acts as an E3 ubiquitin-protein ligase which accepts ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates (PubMed:14602072, PubMed:17028573, PubMed:16387660, PubMed:18718448, PubMed:18718449, PubMed:11046148, PubMed:19592251, PubMed:19116316, PubMed:19881509, PubMed:20491914, PubMed:20392206, PubMed:20068034, PubMed:23146885, PubMed:24790097, PubMed:25631046). Catalyzes 'Lys-29'-, 'Lys-48'- and 'Lys-63'-linked ubiquitin conjugation (PubMed:17028573, PubMed:18718448, PubMed:19131965, PubMed:19881509). Involved in the control of inflammatory signaling pathways (PubMed:19131965). Essential component of a ubiquitin-editing protein complex, comprising also TNFAIP3, TAX1BP1 and RNF11, that ensures the transient nature of inflammatory signaling pathways (PubMed:19131965). Promotes the association of the complex after TNF stimulation (PubMed:19131965). Once the complex is formed, TNFAIP3 deubiquitinates 'Lys-63' polyubiquitin chains on RIPK1 and catalyzes the formation of 'Lys-48'-polyubiquitin chains (PubMed:19131965). This leads to RIPK1 proteasomal degradation and consequently termination of the TNF- or LPS-mediated activation of NFKB1 (PubMed:19131965). Ubiquitinates RIPK2 by 'Lys-63'-linked conjugation and influences NOD2-dependent signal transduction pathways (PubMed:19592251). Regulates the transcriptional activity of several transcription factors, and probably plays an important role in the regulation of immune response (PubMed:18718448, PubMed:20491914). Ubiquitinates NFE2 by 'Lys-63' linkages and is implicated in the control of the development of hematopoietic lineages (PubMed:18718448). Mediates JUN ubiquitination and degradation (By similarity). Mediates JUNB ubiquitination and degradation (PubMed:16387660). Critical regulator of type 2 helper T (Th2) cell cytokine production by inducing JUNB ubiquitination and degradation (By similarity). Involved in the negative regulation of MAVS-dependent cellular antiviral responses (PubMed:19881509). Ubiquitinates MAVS through 'Lys-48'-linked conjugation resulting in MAVS proteasomal degradation (PubMed:19881509). Following ligand stimulation, regulates sorting of Wnt receptor FZD4 to the degradative endocytic pathway probably by modulating PI42KA activity (PubMed:23146885). Ubiquitinates PI4K2A and negatively regulates its catalytic activity (PubMed:23146885). Ubiquitinates chemokine receptor CXCR4 and regulates sorting of CXCR4 to the degradative endocytic pathway following ligand stimulation by ubiquitinating endosomal sorting complex required for transport ESCRT-0 components HGS and STAM (PubMed:14602072, PubMed:23146885). Targets DTX1 for lysosomal degradation and controls NOTCH1 degradation, in the absence of ligand, through 'Lys-29'-linked polyubiquitination (PubMed:17028573, PubMed:18628966, PubMed:23886940). Ubiquitinates SNX9 (PubMed:20491914). Ubiquitinates MAP3K7 through 'Lys-48'-linked conjugation (By similarity). Involved in the regulation of apoptosis and reactive oxygen species levels through the ubiquitination and proteasomal degradation of TXNIP (PubMed:20068034). Mediates the antiapoptotic activity of epidermal growth factor through the ubiquitination and proteasomal degradation of p15 BID (PubMed:20392206). Ubiquitinates BRAT1 and this ubiquitination is enhanced in the presence of NDFIP1 (PubMed:25631046). Inhibits the replication of influenza A virus (IAV) via ubiquitination of IAV matrix protein 1 (M1) through 'Lys-48'-linked conjugation resulting in M1 proteasomal degradation (PubMed:30328013).

生物活性：

Not tested

该产品为 ITCH 抗体的抗原肽，在抗体检测、纯化时作为封闭肽使用，对应抗体货号为：K111513P。
抗体封闭肽是一类专门用于免疫学检测体系的功能性合成多肽，其核心作用是通过特异性结合干扰性抗体或非特异性结合位点，从而降低实验背景信号，提高检测结果的准确性和可靠性。它并不直接识别目标抗原，而是充当一种“分子屏蔽层”，封闭那些可能导致假阳性或假阴性结果的非特异性相互作用。
在功能层面，抗体封闭肽主要具备两大特性。一是高亲和力的特异性中和能力——其氨基酸序列与检测体系中可能引起交叉反应的抗体表位完全相同或高度同源，因此能够优先与这些干扰抗体结合，占据其活性位点。二是物理屏蔽作用，即在不干扰靶标抗原与检测抗体正常识别的前提下，封闭固相载体或捕获分子上的空缺结合区域，减少杂蛋白或杂抗体的非特异性吸附。
在应用层面，抗体封闭肽广泛应用于各类免疫分析技术中，包括酶联免疫吸附测定、蛋白质印迹、免疫组化以及免疫层析试纸条等。在自身抗体检测、生物制剂的免疫原性分析以及多重免疫检测方法开发中，它能够有效消除由异嗜性抗体、抗物种抗体或样本基质效应引起的背景干扰。此外，在基于标签融合蛋白的表达检测以及抗体亲和纯化流程中，封闭肽同样扮演着关键角色，可作为竞争性洗脱剂或信号校正控制组使用。
注意事项：
1.本产品仅供科研使用，请勿用于医药、临床治疗、食品及化收品等用途 。
2.为了您的安全和健康，请穿实验服，口罩，护目镜，并戴一次性手套操作。
3.实验结果可由多种因素影响，相关处理只限于产品本身，不涉及其他赔偿。
4.请勿存放于普通住宅区。

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