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AB270576

Recombinant Human CD19 protein (Fc tag C-Terminus + His tag C-Terminus)

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Recombinant Human CD19 protein (Fc tag C-Terminus + His tag C-Terminus) is a Human Fragment protein, in the 21 to 291 aa range, expressed in Baculovirus infected insect cells, with >85%, < 1 EU/µg endotoxin level, suitable for SDS-PAGE.

대체 명칭 보기

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

1 이미지
SDS-PAGE - Recombinant Human CD19 protein (Fc tag C-Terminus + His tag C-Terminus) (AB270576)
  • SDS-PAGE

Supplier Data

SDS-PAGE - Recombinant Human CD19 protein (Fc tag C-Terminus + His tag C-Terminus) (AB270576)

Recombinant Human CD19 protein purity determined by SDS-PAGE analysis.

주요 정보

Purity

>85% SDS-PAGE

Affinity purified

Endotoxin 레벨

< 1 EU/µg

발현 시스템

Baculovirus infected insect cells

Tags

Fc tag C-Terminus His tag C-Terminus

Applications

SDS-PAGE

applications

Biologically active

No

Accession

Animal free

No

Carrier free

No

Species

Human

보관 버퍼

pH: 7.4 Constituents: PBS, 10% Glycerol (glycerin, glycerine)

storage-buffer

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보완 제품

Reagents, Controls & Accessories

AB325995

Prestained Protein Ladder - Broad molecular weight (11-250 kDa, 5-color, 11 bands)

SDS-PAGE - Prestained Protein Ladder - Broad molecular weight (11-250 kDa, 5-color, 11 bands) (AB325995)

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Primary Antibodies

AB196515

Alexa Fluor® 647 Anti-CD19 antibody [EPR5906]

RabMAb|Recombinant

Immunocytochemistry/ Immunofluorescence - Alexa Fluor® 647 Anti-CD19 antibody [EPR5906] (AB196515)

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  • 1
Proteins & Peptides

AB283938

Recombinant Human PSMA Protein

Mass Spectrometry - Recombinant Human PSMA Protein (AB283938)

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  • 0
Secondary Antibodies

AB6728

Rabbit Anti-Mouse IgG H&L (HRP)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Rabbit Anti-Mouse IgG H&L (HRP) (AB6728)

  • 5
  • 10
Proteins & Peptides

AB280943

Recombinant human PD-L1 protein (Active)

Premium Bioactive

Sandwich ELISA - Recombinant human PD-L1 protein (Active) (AB280943)

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  • 0
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Reactivity 정보

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "SDS-PAGE": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p>50-70kDa (SDS-PAGE under reducing conditions).</p>" } } }
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서열 정보

[{"linker":null,"sequence":"EEPLVVKVEEGDNAVLQCLKGTSDGPTQQLTWSRESPLKPFLKLSLGLPGLGIHMRPLAIWLFIFNVSQQMGGFYLCQPGPPSEKAWQPGWTVNVEGSGELFRWNVSDLGGLGCGLKNRSSEGPSSPSGKLMSPKLYVWAKDRPEIWEGEPPCLPPRDSLNQSLSQDLTMAPGSTLWLSCGVPPDSVSRGPLSWTHVHPKGPKSLLSLELKDDRPARDMWVMETGLLLPRATAQDAGKYYCHRGNLTMSFHLEITARPVLWHWLLRTGGWKLEPKSCDKTHTCPPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREPQVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGKHHHHHH","proteinLength":"Fragment","predictedMolecularWeight":"61 kDa","actualMolecularWeight":"57 kDa","aminoAcidEnd":291,"aminoAcidStart":21,"nature":"Recombinant","expressionSystem":"Baculovirus infected insect cells","accessionNumber":"P15391","tags":[{"tag":"Fc","terminus":"C-Terminus"},{"tag":"His","terminus":"C-Terminus"}]}]
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특성 및 보관 정보

제형
Liquid
Purification 테크닉
Affinity purification
배송 시 보관 조건
Blue Ice
적절한 단기 보관 기간
1-2 weeks
적절한 단기 보관 조건
+4°C
적절한 장기 보관 조건
-20°C
보관 정보
Avoid freeze / thaw cycle
False
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추가 정보

This supplementary information is collated from multiple sources and compiled automatically.

CD19 is a transmembrane protein also known as B4 or B-lymphocyte antigen CD19 with an approximate molecular weight of 95 kDa. It is expressed on the surface of B cells throughout their development from pro-B cells to mature B cells. CD19 functions mechanically as a coreceptor enhancing the sensitivity of B cell receptor (BCR) signaling. This protein plays a significant role in promoting the activation and proliferation of B cells by lowering the threshold for antigen receptor engagement.
Biological function summary

CD19 acts as an essential player in B cell signaling. CD19 integrates signals from the BCR with other coreceptors acting as a signaling hub. It participates in forming a signaling complex that includes proteins like CD21 and CD81 which further amplifies BCR-mediated signaling. This complex plays a critical role in B cell activation differentiation and survival ensuring that immune responses are efficiently mounted against pathogens.

Pathways

The CD19 protein fits into key immune response pathways such as the BCR signaling pathway and the PI3K-Akt signaling pathway. CD19 collaborates with other proteins like CD21 CD81 and PI3K within these pathways. Its interaction in the PI3K-Akt pathway for instance supports critical processes including B cell activation and homeostasis contributing to the adaptive immune response.

CD19 is connected to B cell malignancies and autoimmune diseases. B cell acute lymphoblastic leukemia (ALL) often shows aberrant CD19 expression making it a valuable target for therapeutic interventions like anti-CD19 monoclonal antibodies. Additionally overexpression or mutations of CD19 may contribute to autoimmune diseases by disrupting normal B cell regulation. CD19's connection with proteins like CD22 and CD20 in these pathological contexts highlights its relevance in developing targeted therapies.
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일반 정보

기능

Functions as a coreceptor for the B-cell antigen receptor complex (BCR) on B-lymphocytes (PubMed : 29523808). Decreases the threshold for activation of downstream signaling pathways and for triggering B-cell responses to antigens (PubMed : 1373518, PubMed : 16672701, PubMed : 2463100). Activates signaling pathways that lead to the activation of phosphatidylinositol 3-kinase and the mobilization of intracellular Ca(2+) stores (PubMed : 12387743, PubMed : 16672701, PubMed : 9317126, PubMed : 9382888). Is not required for early steps during B cell differentiation in the blood marrow (PubMed : 9317126). Required for normal differentiation of B-1 cells (By similarity). Required for normal B cell differentiation and proliferation in response to antigen challenges (PubMed : 1373518, PubMed : 2463100). Required for normal levels of serum immunoglobulins, and for production of high-affinity antibodies in response to antigen challenge (PubMed : 12387743, PubMed : 16672701, PubMed : 9317126).

Post-translational modifications

Phosphorylated on tyrosine following B-cell activation (PubMed:10706702, PubMed:12387743, PubMed:7684160, PubMed:7687539). Phosphorylated on tyrosine residues by LYN (PubMed:7687428). 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).

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제품 프로토콜

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타겟 정보

Functions as a coreceptor for the B-cell antigen receptor complex (BCR) on B-lymphocytes (PubMed : 29523808). Decreases the threshold for activation of downstream signaling pathways and for triggering B-cell responses to antigens (PubMed : 1373518, PubMed : 16672701, PubMed : 2463100). Activates signaling pathways that lead to the activation of phosphatidylinositol 3-kinase and the mobilization of intracellular Ca(2+) stores (PubMed : 12387743, PubMed : 16672701, PubMed : 9317126, PubMed : 9382888). Is not required for early steps during B cell differentiation in the blood marrow (PubMed : 9317126). Required for normal differentiation of B-1 cells (By similarity). Required for normal B cell differentiation and proliferation in response to antigen challenges (PubMed : 1373518, PubMed : 2463100). Required for normal levels of serum immunoglobulins, and for production of high-affinity antibodies in response to antigen challenge (PubMed : 12387743, PubMed : 16672701, PubMed : 9317126).
See full target information CD19
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Product promise

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