KLRK1 Human, Sf9

Killer Cell lectin-Like Receptor Subfamily K, Member 1 Human Recombinant, Sf9
Cat. No.
BT26853
Source
Sf9, Baculovirus cells.
Synonyms

Killer Cell Lectin Like Receptor K1, Killer Cell Lectin-Like Receptor Subfamily K, Member 1, NKG2-D-Activating NK Receptor, NK Cell Receptor D, D12S2489E, NKG2D, DNA Segment On Chromosome 12 (Unique) 2489 Expressed Sequence, Killer Cell Lectin-Like Receptor Subfamily K Member 1, NKG2-D Type II Integral Membrane Protein, CD314 Antigen, NKG2-D, CD314, KLR.

Appearance
Sterile Filtered colorless solution.
Purity

Greater than 95.0% as determined by SDS-PAGE.

Usage
THE BioTek's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
Shipped with Ice Packs
In Stock

Description

KLRK1 Human Recombinant produced in Sf9 Baculovirus cells is a single, glycosylated polypeptide chain containing 386 amino acids (73-216a.a.) and having a molecular mass of 43.9kDa (Molecular size on SDS-PAGE will appear at approximately 40-57kDa).
KLRK1 is expressed with a 242 amino acids hIgG-His tag at C-Terminus and purified by proprietary chromatographic techniques.

Product Specs

Introduction
Killer Cell lectin-Like Receptor Subfamily K, Member 1 (KLRK1) is an activating receptor that has recently garnered significant interest. KLRK1 binds to a couple of closely related proteins known as MICA and MICB, which are cell-surface molecules distantly related to MHC class I proteins. Expression of MICA and MICB, whose genes have elements of heat shock promoters, is upregulated in the course of cell stress such as tumorigenesis and viral infections. The KLRK1-MICA/MICB receptor-ligand interaction plays a crucial role in the immune response to various pathologies.
Description
Recombinant human KLRK1 was expressed in Sf9 Baculovirus cells as a glycosylated polypeptide chain containing 386 amino acids (73-216a.a.) and having a molecular mass of 43.9kDa. The protein is fused to a 242 amino acids hIgG-His tag at its C-terminus. KLRK1 migrates on SDS-PAGE at approximately 40-57kDa depending on glycosylation. KLRK1 is purified by proprietary chromatographic techniques.
Physical Appearance
Sterile Filtered colorless solution.
Formulation
KLRK1 protein is supplied in a solution containing Phosphate Buffered Saline (pH 7.4) and 10% glycerol at a concentration of 0.5mg/ml.
Stability
KLRK1 is stable at 4°C if entire vial will be used within 2-4 weeks. For longer periods of time, store frozen at -20°C. It is recommended to add a carrier protein (0.1% HSA or BSA) for long term storage. Avoid repeated freeze-thaw cycles.
Purity
Greater than 95.0% as determined by SDS-PAGE analysis.
Synonyms

Killer Cell Lectin Like Receptor K1, Killer Cell Lectin-Like Receptor Subfamily K, Member 1, NKG2-D-Activating NK Receptor, NK Cell Receptor D, D12S2489E, NKG2D, DNA Segment On Chromosome 12 (Unique) 2489 Expressed Sequence, Killer Cell Lectin-Like Receptor Subfamily K Member 1, NKG2-D Type II Integral Membrane Protein, CD314 Antigen, NKG2-D, CD314, KLR.

Source
Sf9, Baculovirus cells.
Amino Acid Sequence

ADPIWSAVFL NSLFNQEVQI PLTESYCGPC PKNWICYKNN CYQFFDESKN WYESQASCMS QNASLLKVYS KEDQDLLKLV KSYHWMGLVH IPTNGSWQWE DGSILSPNLL TIIEMQKGDC ALYASSFKGY IENCSTPNTY ICMQRTVVEP KSCDKTHTCP PCPAPELLGG PSVFLFPPKP KDTLMISRTP EVTCVVVDVS HEDPEVKFNW YVDGVEVHNA KTKPREEQYN STYRVVSVLT VLHQDWLNGK EYKCKVSNKA LPAPIEKTIS KAKGQPREPQ VYTLPPSRDE LTKNQVSLTC LVKGFYPSDI AVEWESNGQP ENNYKTTPPV LDSDGSFFLY SKLTVDKSRW QQGNVFSCSV MHEALHNHYT QKSLSLSPGK HHHHHH.

Product Science Overview

Introduction

Killer Cell Lectin-Like Receptor Subfamily K, Member 1 (KLRK1), also known as NKG2D, is a significant protein in the immune system. It is a member of the C-type lectin family and plays a crucial role in the activation of natural killer (NK) cells and certain T cells .

Gene and Protein Structure

The KLRK1 gene is located on chromosome 12p13.2 and encodes a type II transmembrane protein characterized by an extracellular C terminus and a C-type lectin domain . This protein is known for its ability to bind to a diverse family of ligands, including MHC class I chain-related proteins and UL-16 binding proteins .

Function and Mechanism

KLRK1 is primarily expressed on NK cells, CD8-positive T cells, and some gamma/delta T cells . It functions as an activating receptor that triggers cytolytic responses against tumor cells and virus-infected cells . The interaction between KLRK1 and its ligands leads to the activation of NK and T cells, promoting the immune response against stressed cells .

Clinical Significance

The surface expression of KLRK1 ligands is crucial for the recognition of stressed cells by the immune system. This makes KLRK1 and its ligands potential therapeutic targets for the treatment of immune diseases and cancers . Research has shown that the activation of KLRK1 can enhance antitumor responses, making it a promising candidate for cancer immunotherapy .

Recombinant KLRK1 (Human, Sf9)

Recombinant KLRK1 produced in Sf9 insect cells is used in research to study its structure and function. The recombinant protein is valuable for understanding the mechanisms of NK cell activation and for developing therapeutic strategies targeting KLRK1 .

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