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AB151673

Recombinant Human LAIR1 protein

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Recombinant Human LAIR1 protein is a Human Fragment protein, in the 22 to 163 aa range, expressed in HEK 293 cells, with >95%, < 1 EU/µg endotoxin level, suitable for SDS-PAGE, HPLC.

View Alternative Names

CD305, LAIR1, Leukocyte-associated immunoglobulin-like receptor 1, LAIR-1, hLAIR1

Key facts

Purity

>95% SDS-PAGE

Endotoxin level

< 1 EU/µg

Expression system

HEK 293 cells

Tags

His tag C-Terminus

Applications

SDS-PAGE, HPLC

applications

Biologically active

No

Accession

Q6GTX8

Animal free

No

Carrier free

No

Species

Human

Reconstitution

Reconstitute in PBS

Storage buffer

pH: 7.2 Constituents: 99% Phosphate Buffer, 0.88% Sodium chloride

storage-buffer

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Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "SDS-PAGE": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" }, "HPLC": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }
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Sequence info

[{"sequence":"QEEDLPRPSISAEPGTVIPLGSHVTFVCRGPVGVQTFRLERESRSTYNDTEDVSQASPSESEARFRIDSVSEGNAGPYRCIYYKPPKWSEQSDYLELLVKETSGGPDSPDTEPGSSAGPTQRPSDNSHNEHAPASQGLKAEHVDHHHHHH","proteinLength":"Fragment","predictedMolecularWeight":"16.5 kDa","actualMolecularWeight":null,"aminoAcidEnd":163,"aminoAcidStart":22,"nature":"Recombinant","expressionSystem":"HEK 293 cells","accessionNumber":"Q6GTX8","tags":[{"tag":"His","terminus":"C-Terminus"}]}]
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Properties and storage information

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
-20°C
Appropriate long-term storage conditions
-20°C
False
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Supplementary information

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

LAIR1 also known as Leukocyte-Associated Immunoglobulin-like Receptor 1 is a transmembrane protein with a molecular weight of approximately 32 kDa. It expresses mainly on immune cells including T cells B cells and myeloid cells. This receptor by binding to collagen plays a significant role in controlling immune cell signaling. It acts as an inhibitory receptor which helps in maintaining immune system balance and prevents excessive immune responses.
Biological function summary

LAIR1 functions by modulating immune responses and maintaining homeostasis in the immune system. It is a part of a complex pathway involved in inhibitory signaling. When LAIR1 binds to its ligand such as collagen it transduces a signal that reduces activation of immune cells. This inhibition ensures that immune cells do not become overactive which could otherwise lead to tissue damage.

Pathways

LAIR1 participates in immune checkpoint regulation and collagen interaction pathways. It interacts with proteins such as ITIM-containing molecules which transmit inhibitory signals essential for regulating immune cell activation. It also indirectly connects to the TGF-beta signaling pathway which is vital for controlling cell differentiation and immune regulation.

LAIR1 is of interest due to its connection to autoimmune diseases and certain cancers. In autoimmune diseases such as rheumatoid arthritis dysregulated LAIR1 signaling may contribute to inflammation. The protein is also linked to cancer where its inhibitory signaling might affect tumor immune evasion. The connection between LAIR1 and these conditions involves proteins like autoimmune-related genes and tumor-associated surface molecules.
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Specifications

Form

Lyophilized

Additional notes

Purity is greater than 95% as determined by SEC-HPLC and reducing SDS-PAGE.

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General info

Function

Functions as an inhibitory receptor that plays a constitutive negative regulatory role on cytolytic function of natural killer (NK) cells, B-cells and T-cells. Activation by Tyr phosphorylation results in recruitment and activation of the phosphatases PTPN6 and PTPN11. It also reduces the increase of intracellular calcium evoked by B-cell receptor ligation. May also play its inhibitory role independently of SH2-containing phosphatases. Modulates cytokine production in CD4+ T-cells, down-regulating IL2 and IFNG production while inducing secretion of transforming growth factor beta. Down-regulates also IgG and IgE production in B-cells as well as IL8, IL10 and TNF secretion. Inhibits proliferation and induces apoptosis in myeloid leukemia cell lines as well as prevents nuclear translocation of NF-kappa-B p65 subunit/RELA and phosphorylation of I-kappa-B alpha/CHUK in these cells. Inhibits the differentiation of peripheral blood precursors towards dendritic cells.

Post-translational modifications

Phosphorylation at Tyr-251 and Tyr-281 activates it. May be phosphorylated by LCK.. N-glycosylated.

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Product protocols

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Target data

Functions as an inhibitory receptor that plays a constitutive negative regulatory role on cytolytic function of natural killer (NK) cells, B-cells and T-cells. Activation by Tyr phosphorylation results in recruitment and activation of the phosphatases PTPN6 and PTPN11. It also reduces the increase of intracellular calcium evoked by B-cell receptor ligation. May also play its inhibitory role independently of SH2-containing phosphatases. Modulates cytokine production in CD4+ T-cells, down-regulating IL2 and IFNG production while inducing secretion of transforming growth factor beta. Down-regulates also IgG and IgE production in B-cells as well as IL8, IL10 and TNF secretion. Inhibits proliferation and induces apoptosis in myeloid leukemia cell lines as well as prevents nuclear translocation of NF-kappa-B p65 subunit/RELA and phosphorylation of I-kappa-B alpha/CHUK in these cells. Inhibits the differentiation of peripheral blood precursors towards dendritic cells.
See full target information LAIR1
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