产品: CD4 抗体
货号: AF5341
描述: Rabbit polyclonal antibody to CD4
应用: WB
反应: Human, Rat
预测: Pig, Horse, Dog
分子量: 48 kDa; 51kD(Calculated).
蛋白号: P01730
RRID: AB_2837826

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   规格 价格 库存
 50ul RMB¥ 1250 现货
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 200ul RMB¥ 3000 现货

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产品描述

来源:
Rabbit
应用:
WB 1:500-1:2000
*The optimal dilutions should be determined by the end user.
*Tips:

WB: 适用于变性蛋白样本的免疫印迹检测. IHC: 适用于组织样本的石蜡(IHC-p)或冰冻(IHC-f)切片样本的免疫组化/荧光检测. IF/ICC: 适用于细胞样本的荧光检测. ELISA(peptide): 适用于抗原肽的ELISA检测.

反应:
Human,Rat
预测:
Pig(100%), Horse(100%), Dog(100%)
克隆:
Polyclonal
特异性:
CD4 Antibody detects endogenous levels of total CD4.
RRID:
AB_2837826
引用格式: Affinity Biosciences Cat# AF5341, RRID:AB_2837826.
偶联:
Unconjugated.
纯化:
The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).
保存:
Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.
别名:

展开/折叠

CD 4; CD4 (L3T4); CD4; CD4 antigen (p55); CD4 antigen; CD4 molecule; CD4 receptor; CD4+ Lymphocyte deficiency, included; CD4_HUMAN; CD4mut; L3T4; Leu3; Ly-4; Lymphocyte antigen CD4; MGC165891; OTTHUMP00000238897; p55; T cell antigen T4; T cell antigen T4/LEU3; T cell differentiation antigen L3T4; T cell OKT4 deficiency, included; T cell surface antigen T4/Leu 3; T cell surface antigen T4/Leu3; T cell surface glycoprotein CD4; T-cell surface antigen T4/Leu-3; T-cell surface glycoprotein CD4; W3/25; W3/25 antigen;

抗原和靶标

免疫原:
Uniprot:
基因/基因ID:
表达:
P01730 CD4_HUMAN:

Highly expressed in T-helper cells. The presence of CD4 is a hallmark of T-helper cells which are specialized in the activation and growth of cytotoxic T-cells, regulation of B cells, or activation of phagocytes. CD4 is also present in other immune cells such as macrophages, dendritic cells or NK cells.

描述:
Accessory protein for MHC class-II antigen/T-cell receptor interaction. May regulate T-cell activation. Induces the aggregation of lipid rafts.
序列:
MNRGVPFRHLLLVLQLALLPAATQGKKVVLGKKGDTVELTCTASQKKSIQFHWKNSNQIKILGNQGSFLTKGPSKLNDRADSRRSLWDQGNFPLIIKNLKIEDSDTYICEVEDQKEEVQLLVFGLTANSDTHLLQGQSLTLTLESPPGSSPSVQCRSPRGKNIQGGKTLSVSQLELQDSGTWTCTVLQNQKKVEFKIDIVVLAFQKASSIVYKKEGEQVEFSFPLAFTVEKLTGSGELWWQAERASSSKSWITFDLKNKEVSVKRVTQDPKLQMGKKLPLHLTLPQALPQYAGSGNLTLALEAKTGKLHQEVNLVVMRATQLQKNLTCEVWGPTSPKLMLSLKLENKEAKVSKREKAVWVLNPEAGMWQCLLSDSGQVLLESNIKVLPTWSTPVQPMALIVLGGVAGLLLFIGLGIFFCVRCRHRRRQAERMSQIKRLLSEKKTCQCPHRFQKTCSPI

种属预测

种属预测:

score>80的预测可信度较高,可尝试用于WB检测。*预测模型主要基于免疫原序列比对,结果仅作参考,不作为质保凭据。

Species
Results
Score
Pig
100
Horse
100
Dog
100
Rabbit
75
Bovine
0
Sheep
0
Xenopus
0
Zebrafish
0
Chicken
0
Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

翻译修饰 - P01730 作为底物

Site PTM Type Enzyme
S67 Phosphorylation
T70 Phosphorylation
S74 Phosphorylation
S433 Phosphorylation P17252 (PRKCA)
K436 Ubiquitination
S440 Phosphorylation P17252 (PRKCA)
K453 Ubiquitination
S456 Phosphorylation

研究背景

功能:

Integral membrane glycoprotein that plays an essential role in the immune response and serves multiple functions in responses against both external and internal offenses. In T-cells, functions primarily as a coreceptor for MHC class II molecule:peptide complex. The antigens presented by class II peptides are derived from extracellular proteins while class I peptides are derived from cytosolic proteins. Interacts simultaneously with the T-cell receptor (TCR) and the MHC class II presented by antigen presenting cells (APCs). In turn, recruits the Src kinase LCK to the vicinity of the TCR-CD3 complex. LCK then initiates different intracellular signaling pathways by phosphorylating various substrates ultimately leading to lymphokine production, motility, adhesion and activation of T-helper cells. In other cells such as macrophages or NK cells, plays a role in differentiation/activation, cytokine expression and cell migration in a TCR/LCK-independent pathway. Participates in the development of T-helper cells in the thymus and triggers the differentiation of monocytes into functional mature macrophages.

(Microbial infection) Primary receptor for human immunodeficiency virus-1 (HIV-1). Down-regulated by HIV-1 Vpu. Acts as a receptor for Human Herpes virus 7/HHV-7.

翻译修饰:

Palmitoylation and association with LCK contribute to the enrichment of CD4 in lipid rafts.

Phosphorylated by PKC; phosphorylation at Ser-433 plays an important role for CD4 internalization.

细胞定位:

Cell membrane>Single-pass type I membrane protein.
Note: Localizes to lipid rafts (PubMed:12517957, PubMed:9168119). Removed from plasma membrane by HIV-1 Nef protein that increases clathrin-dependent endocytosis of this antigen to target it to lysosomal degradation. Cell surface expression is also down-modulated by HIV-1 Envelope polyprotein gp160 that interacts with, and sequesters CD4 in the endoplasmic reticulum.

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
组织特异性:

Highly expressed in T-helper cells. The presence of CD4 is a hallmark of T-helper cells which are specialized in the activation and growth of cytotoxic T-cells, regulation of B cells, or activation of phagocytes. CD4 is also present in other immune cells such as macrophages, dendritic cells or NK cells.

亚基结构:

Forms disulfide-linked homodimers at the cell surface. Interacts with LCK. Interacts with PTK2/FAK1. Binds to P4HB/PDI. Interacts with IL16; this interaction induces a CD4-dependent signaling in lymphocytes.

(Microbial infection) Interacts with HIV-1 Envelope polyprotein gp160 and protein Vpu.

(Microbial infection) Interacts with Human Herpes virus 7 surface proteins.

研究领域

· Environmental Information Processing > Signaling molecules and interaction > Cell adhesion molecules (CAMs).   (View pathway)

· Human Diseases > Immune diseases > Primary immunodeficiency.

· Organismal Systems > Immune system > Antigen processing and presentation.   (View pathway)

· Organismal Systems > Immune system > Hematopoietic cell lineage.   (View pathway)

· Organismal Systems > Immune system > Th1 and Th2 cell differentiation.   (View pathway)

· Organismal Systems > Immune system > Th17 cell differentiation.   (View pathway)

· Organismal Systems > Immune system > T cell receptor signaling pathway.   (View pathway)

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