CD19 Antibody - #DF7030

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製品: CD19 Antibody
カタログ: DF7030
タンパク質の説明: Rabbit polyclonal antibody to CD19
アプリケーション: WB IHC IF/ICC
Cited expt.: IHC, IF/ICC
反応性: Human, Mouse
予測: Pig, Bovine, Horse, Sheep, Rabbit, Dog
分子量: 61kDa; 61kD(Calculated).
ユニプロット: P15391
RRID: AB_2838986

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MSDS
説明書
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WB Handbook
IHC Protocol
IF/ICC Protocol

製品説明

ソース:
Rabbit
アプリケーション:
WB 1:500-1:2000, IHC 1:50-1:200, IF/ICC 1:100-1:500
*The optimal dilutions should be determined by the end user.
*Tips:

WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.

反応性:
Human,Mouse
予測:
Pig(100%), Bovine(100%), Horse(100%), Sheep(100%), Rabbit(100%), Dog(100%)
クローナリティ:
Polyclonal
特異性:
CD19 Antibody detects endogenous levels of total CD19.
RRID:
AB_2838986
引用形式: Affinity Biosciences Cat# DF7030, RRID:AB_2838986.
コンジュゲート:
Unconjugated.
精製:
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.
別名:

折りたたみ／展開

B-lymphocyte antigen CD19; CD19; B-lymphocyte surface antigen B4; Differentiation antigen CD19; T-cell surface antigen Leu-12;

免疫原

免疫原:

A synthesized peptide derived from human CD19, corresponding to a region within C-terminal amino acids.

Uniprot:

P15391(CD19_HUMAN) >>Visit HPA database.

遺伝子(ID):
CD19(930)
発現特異性:
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).

タンパク質の説明:
Lymphocytes proliferate and differentiate in response to various concentrations of different antigens. The ability of the B cell to respond in a specific, yet sensitive manner to the various antigens is achieved with the use of low-affinity antigen receptors. This gene encodes a cell surface molecule which assembles with the antigen receptor of B lymphocytes in order to decrease the threshold for antigen receptor-dependent stimulation.
タンパク質配列:
MPPPRLLFFLLFLTPMEVRPEEPLVVKVEEGDNAVLQCLKGTSDGPTQQLTWSRESPLKPFLKLSLGLPGLGIHMRPLAIWLFIFNVSQQMGGFYLCQPGPPSEKAWQPGWTVNVEGSGELFRWNVSDLGGLGCGLKNRSSEGPSSPSGKLMSPKLYVWAKDRPEIWEGEPPCLPPRDSLNQSLSQDLTMAPGSTLWLSCGVPPDSVSRGPLSWTHVHPKGPKSLLSLELKDDRPARDMWVMETGLLLPRATAQDAGKYYCHRGNLTMSFHLEITARPVLWHWLLRTGGWKVSAVTLAYLIFCLCSLVGILHLQRALVLRRKRKRMTDPTRRFFKVTPPPGSGPQNQYGNVLSLPTPTSGLGRAQRWAAGLGGTAPSYGNPSSDVQADGALGSRSPPGVGPEEEEGEGYEEPDSEEDSEFYENDSNLGQDQLSQDGSGYENPEDEPLGPEDEDSFSNAESYENEDEELTQPVARTMDFLSPHGSAWDPSREATSLGSQSYEDMRGILYAAPQLRSIRGQPGPNHEEDADSYENMDNPDGPDPAWGGGGRMGTWSTR

種類予測

種類予測:

Score>80(red) has high confidence and is suggested to be used for WB detection. *The prediction model is mainly based on the alignment of immunogen sequences, the results are for reference only, not as the basis of quality assurance.

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

研究背景

機能:

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.

PTMs:

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).

細胞の位置付け:

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
組織特異性:

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

研究領域

· 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)

参考文献

1). Characterization of immune microenvironment in patients with HPV-positive and negative head and neck cancer. Scientific data, 2023 (PubMed: 37828063) [IF=9.8]

Application: IF/ICC    Species: Human    Sample:

Fig. 6 The in vitro study reveals that FCER2+ B cells inhibit the proliferation and migration ability of HPV+ tumors. (a) Flow cytometry analysis of B cells, plasma cells, macrophages, and FCER2+ B cells from PBMCs of patients with HNSCC. (b) Representative histopathological staining and HPV-p16, as well as FCER2 immunofluorescent staining images of HNSCC samples. FCER2+ B cells are cocultured with HPV+ SCC090 cells. (c) Scratch experiment showing cell migration. (d) Transwell chamber invasion assay showing cell invasion. (e) CCK-8 experiment showing cell proliferation. Figure 6 represents three experiments that achieved similar results. *p 
2). Machine-Learning Algorithm-Based Prediction of Diagnostic Gene Biomarkers Related to Immune Infiltration in Patients With Chronic Obstructive Pulmonary Disease. Frontiers in Immunology, 2022 (PubMed: 35350787) [IF=5.7]

Application: IF/ICC    Species: mouse    Sample: lung

FIGURE 8 | Immune cell infiltration in COPD mouse models.(K) Representative immunofluorescence images of CD19 and CD20 (400x). For panel G, H, and I, the unit for BRLF is pg/mL, and the unit for lung tissue is pg/mg. *P < 0.05, **P < 0.01, ***P < 0.001 vs. Control.
3). ASPM Is a Prognostic Biomarker and Correlates With Immune Infiltration in Kidney Renal Clear Cell Carcinoma and Liver Hepatocellular Carcinoma. Frontiers in Oncology, 2022 (PubMed: 35515103) [IF=3.5]

Application: IHC    Species: Human    Sample: KIRC and LIHC tissues

Figure 7 Expression analysis of ASPM in KIRC and LIHC tissues. (A) Relative level of ASPM mRNA using quantitative RT-PCR; **p < 0.01. (B) The expression of ASPM was analyzed by Western-blot analysis using a compound samples. (C) Tumor infiltration of B cells, CD8+ T cells, and M2 macrophages in KIRC and LIHC using immunohistochemistry. 20 diagnosed cases of KIRC and 20 diagnosed cases of LIHC samples for immunohistochemistry. We validate the relationship between ASPM expression and B cells (marker: CD19), CD8+ T cells (marker: CD8A), and M2 macrophages (marker: CD163), we performed immunohistochemistry to assess ASPM, CD19, CD8A, and CD163. Muscle and lymph nodes as control samples. (a-d, f-i) Tumor infiltration of B cells, CD8+ T cells, and M2 macrophages in KIRC. (k-n, p-s) Tumor infiltration of B cells, CD8+ T cells, and M2 macrophages in LIHC. (a-d) High expression of ASPM (+++), CD8A (++), CD19 (++), and CD163 (++) in KIRC. (f-i) Low expression of ASPM (+), CD8A (+), CD19 (+), and CD163 (+) in KIRC. (k-n) High expression of ASPM (+++), CD8A (++), CD19 (++), and CD163 (++) in LIHC. (p-s) Low expression of ASPM (+), CD8A (+), CD19 (+), and CD163 (+) in LIHC. (e, o) lymph nodes was used as a positive control in KIRC (+++) and LIHC (+++). (j, t) muscle was used as a negative control in KIRC (-) and LIHC (-). The expression density of ASPM, CD8A, CD19, and CD163 in KIRC and LIHC tissues were quantitated by scoring staining intensity, including negative (–) and weak (+) staining, moderate (++) and strong (+ + +) staining, respectively.

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