LILRB4/CD85k/ILT3 Protein, Human (Biotinylated, HEK293, His)
The LILRB4/CD85k/ILT3 protein is a key inhibitory receptor that plays a key role in immune regulation and tolerance. As a receptor for FN1, apolipoprotein APOE, and ALCAM/CD166, it inhibits receptor-mediated phosphorylation, intracellular calcium mobilization, and FCGR1A/CD64-mediated monocyte activation, thereby reducing TNF production. LILRB4/CD85k/ILT3 Protein, Human (Biotinylated, HEK293, His) is the recombinant human-derived LILRB4/CD85k/ILT3 protein, expressed by HEK293 , with C-His labeled tag.
- Species: Human
- Source: HEK293
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Storage:Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.
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Biological Activity
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Technical Parameters
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Product Properties
- Documentation
- Help & FAQs
Biological Activity
Description
The LILRB4/CD85k/ILT3 protein is a key inhibitory receptor that plays a key role in immune regulation and tolerance. As a receptor for FN1, apolipoprotein APOE, and ALCAM/CD166, it inhibits receptor-mediated phosphorylation, intracellular calcium mobilization, and FCGR1A/CD64-mediated monocyte activation, thereby reducing TNF production. LILRB4/CD85k/ILT3 Protein, Human (Biotinylated, HEK293, His) is the recombinant human-derived LILRB4/CD85k/ILT3 protein, expressed by HEK293 , with C-His labeled tag.
Background
LILRB4/CD85k/ILT3, an inhibitory receptor, plays a pivotal role in immune regulation and the establishment of immune tolerance. Functioning as a receptor for FN1, apolipoprotein APOE, and ALCAM/CD166, this protein is involved in diverse cellular processes. It inhibits receptor-mediated phosphorylation of cellular proteins and the mobilization of intracellular calcium ions, and it further down-regulates FCGR1A/CD64-mediated monocyte activation, leading to reduced TNF production. Additionally, LILRB4/ILT3 impedes T cell proliferation, inducing anergy, suppressing the differentiation of IFNG-producing CD8+ cytotoxic T cells, and promoting the generation of CD8+ T suppressor cells. It induces the up-regulation of CD86 on dendritic cells and interferes with TNFRSF5-signaling and NF-kappa-B up-regulation. The inhibitory effects are at least partially mediated through interactions with FN1 and the phosphatase PTPN6.
Technical Parameters
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Species Human
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Source HEK293
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Tag C-His
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Accession
Q8NHJ6-1 (Q22-E259)
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Molecular Construction
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N-term
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LILRB4 (Q22-E259)
Accession # Q8NHJ6-1-1 -
His
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C-term
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Protein Length
Extracellular Domain
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Conjugation
Biotin
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Synonyms
LILRB4; CD85 Antigen-Like Family Member K; Leukocyte Immunoglobulin Like Receptor B4; Monocyte Inhibitory Receptor HM18; LIR-5; Immunoglobulin-Like Transcript 3; ILT3; Leucocyte Ig-Like Receptor B4; LIR5; ILT-3; CD85k; HM18; Leukocyte Immunoglobulin-Like
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AA Sequence
QAGPLPKPTLWAEPGSVISWGNSVTIWCQGTLEAREYRLDKEESPAPWDRQNPLEPKNKARFSIPSMTEDYAGRYRCYYRSPVGWSQPSDPLELVMTGAYSKPTLSALPSPLVTSGKSVTLLCQSRSPMDTFLLIKERAAHPLLHLRSEHGAQQHQAEFPMSPVTSVHGGTYRCFSSHGFSHYLLSHPSDPLELIVSGSLEDPRPSPTRSVSTAAGPEDQPLMPTGSVPHSGLRRHWE
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Predicted Molecular Mass
27.7 kDa
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Molecular Weight
Approximately 35-42 kDa, based on SDS-PAGE under reducing conditions,due to the glycosylation.
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Purity
≥ 95%, as determined by reducing SDS-PAGE.
Product Properties
Solution
<1 EU/μg, determined by LAL method.
Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.
Shipping with dry ice.
Documentation
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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