产品: 磷酸化 CD19 (Tyr531) 抗体
货号: AF3181
描述: Rabbit polyclonal antibody to Phospho-CD19 (Tyr531)
应用: WB IF/ICC
反应: Human, Mouse, Monkey
预测: Bovine, Horse, Sheep, Rabbit, Dog
分子量: 61kDa; 61kD(Calculated).
蛋白号: P15391
RRID: AB_2834613

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产品描述

来源:
Rabbit
应用:
WB 1:500-1:2000, IF/ICC 1:100-1:500
*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,Mouse,Monkey
预测:
Bovine(100%), Horse(100%), Sheep(100%), Rabbit(100%), Dog(100%)
克隆:
Polyclonal
特异性:
Phospho-CD19 (Tyr531) Antibody detects endogenous levels of CD19 only when phosphorylated at Tyrosine 531.
RRID:
AB_2834613
引用格式: Affinity Biosciences Cat# AF3181, RRID:AB_2834613.
偶联:
Unconjugated.
纯化:
The antibody is from purified rabbit serum by affinity purification via sequential chromatography on phospho-peptide and non-phospho-peptide affinity columns.
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

B lymphocyte antigen CD19; CD19 molecule; CD19 antigen; Differentiation antigen CD19; Ig kappa chain V-I region HK101; IGKC; Immunoglobulin kappa constant; immunoglobulin kappa light chain;

抗原和靶标

免疫原:
Uniprot:
基因/基因ID:
表达:
P15391 CD19_HUMAN:

Detected on marginal zone and germinal center B cells in lymph nodes (PubMed:2463100). Detected on blood B cells (at protein level) (PubMed:2463100, PubMed:16672701).

描述:
CD19 a cell surface molecule which assembles with the antigen receptor of B lymphocytes. A critical signal transduction molecule that regulates B lymphocyte development, activation, and differentiation.
序列:
MPPPRLLFFLLFLTPMEVRPEEPLVVKVEEGDNAVLQCLKGTSDGPTQQLTWSRESPLKPFLKLSLGLPGLGIHMRPLAIWLFIFNVSQQMGGFYLCQPGPPSEKAWQPGWTVNVEGSGELFRWNVSDLGGLGCGLKNRSSEGPSSPSGKLMSPKLYVWAKDRPEIWEGEPPCLPPRDSLNQSLSQDLTMAPGSTLWLSCGVPPDSVSRGPLSWTHVHPKGPKSLLSLELKDDRPARDMWVMETGLLLPRATAQDAGKYYCHRGNLTMSFHLEITARPVLWHWLLRTGGWKVSAVTLAYLIFCLCSLVGILHLQRALVLRRKRKRMTDPTRRFFKVTPPPGSGPQNQYGNVLSLPTPTSGLGRAQRWAAGLGGTAPSYGNPSSDVQADGALGSRSPPGVGPEEEEGEGYEEPDSEEDSEFYENDSNLGQDQLSQDGSGYENPEDEPLGPEDEDSFSNAESYENEDEELTQPVARTMDFLSPHGSAWDPSREATSLGSQSYEDMRGILYAAPQLRSIRGQPGPNHEEDADSYENMDNPDGPDPAWGGGGRMGTWSTR

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
Horse
100
Bovine
100
Sheep
100
Dog
100
Rabbit
100
Pig
67
Xenopus
0
Zebrafish
0
Chicken
0
Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

翻译修饰 - P15391 作为底物

Site PTM Type Enzyme
N86 N-Glycosylation
N125 N-Glycosylation
T337 Phosphorylation
Y348 Phosphorylation
T356 Phosphorylation
Y378 Phosphorylation
Y409 Phosphorylation P07948 (LYN)
Y439 Phosphorylation
T475 Phosphorylation
S497 Phosphorylation
S499 Phosphorylation
Y500 Phosphorylation P07948 (LYN)
Y508 Phosphorylation P00519 (ABL1)
S515 Phosphorylation
S530 Phosphorylation
Y531 Phosphorylation P07948 (LYN)

研究背景

功能:

Functions as coreceptor for the B-cell antigen receptor complex (BCR) on B-lymphocytes. Decreases the threshold for activation of downstream signaling pathways and for triggering B-cell responses to antigens. Activates signaling pathways that lead to the activation of phosphatidylinositol 3-kinase and the mobilization of intracellular Ca(2+) stores. Is not required for early steps during B cell differentiation in the blood marrow. Required for normal differentiation of B-1 cells (By similarity). Required for normal B cell differentiation and proliferation in response to antigen challenges. Required for normal levels of serum immunoglobulins, and for production of high-affinity antibodies in response to antigen challenge.

翻译修饰:

Phosphorylated on tyrosine following B-cell activation. Phosphorylated on tyrosine residues by LYN. Tyrosine residues are phosphorylated sequentially after activation of the B cell receptor. Phosphorylation of Tyr-531 is extremely rapid, followed by phosphorylation at Tyr-409. In contrast, phosphorylation of Tyr-500 appears more slowly and is more transient, returning rapidly to basal levels (By similarity).

细胞定位:

Cell membrane>Single-pass type I membrane protein. Membrane raft>Single-pass type I membrane protein.

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:

Detected on marginal zone and germinal center B cells in lymph nodes. Detected on blood B cells (at protein level).

亚基结构:

Interacts with CR2/CD21. Part of a complex composed of CD19, CR2/CD21, CD81 and IFITM1/CD225 in the membrane of mature B-cells. Interacts directly with CD81 (via the second extracellular domain); this interaction is initiated early during biosynthesis in the ER/pre-Golgi compartments and is essential for trafficking and compartmentalization of CD19 receptor on the cell surface of activated B cells. Interacts with VAV. Interacts with GRB2 and SOS when phosphorylated on Tyr-348 and/or Tyr-378. Interacts with PLCG2 when phosphorylated on Tyr-409. Interacts with LYN. Interacts (when tyrosine phosphorylated) with the regulatory p85 subunit of phosphatidylinositol 3-kinase (PIK3R1 or PIK3R2).

研究领域

· Environmental Information Processing > Signal transduction > PI3K-Akt signaling pathway.   (View pathway)

· Human Diseases > Infectious diseases: Viral > Epstein-Barr virus infection.

· Human Diseases > Immune diseases > Primary immunodeficiency.

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

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

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