LILRB1 (Leukocyte immunoglobulin like receptor B1), also known as CD85J, LIR1 (Leukocyte immunoglobulin-like receptor 1), ILT2 (Ig-like transcript 2), and MIR7 (myeloid inhibitory receptor 7), is a member of the leukocyte immunoglobulin (Ig)-like receptor (LIR) family of the Ig superfamily (IgSF).  It belongs to the subfamily B class of LIR receptors (LILRBs), which are single-pass type I trnasmembrane proteins with 2 or 4 extracellular Ig-like domains, a transmembrane domain (TM), and 2-4 cytoplasmic immunoreceptor tyrosine-based inhibitory motifs (ITIMs). LILRB1 contains 4 Ig-like C2 type domains and 4 TIIMs. The phosphorylated ITIM motif can bind the SH2 domain of several SH2-containing phosphatases to modulate cellular responses.  LILRB1 is expressed predominantly on B-cells and monocytes, and at lower levels on dendritic cells. It is also detected on a low percentage of T-cells and natural killer (NK) cells.  LILRB1 binds to MHC class I molecules on antigen-presenting cells (APCs) and transduces a negative signal that inhibits stimulation of an immune response. LILRB1 may control inflammatory responses and cytotoxicity to help focus the immune response and limit autoreactivity. LILRB1 recognizes a broad spectrum of HLA-A, HLA-B, HLA-C and HLA-G alleles. Engagement of LILRB1 present on natural killer cells or T-cells by class I MHC molecules protects the target cells from lysis. LILRB1 also binds FCER1A and FCGR1A. Interaction with HLA-B or HLA-E leads to inhibition of the signal triggered by FCER1A and inhibits serotonin release.  LILRB1 acts as a receptor for H301/UL18, a human cytomegalovirus class I MHC homolog. 

LILRB1 (Leukocyte immunoglobulin like receptor B1), also known as CD85J, LIR1 (Leukocyte immunoglobulin-like receptor 1), ILT2 (Ig-like transcript 2), and MIR7 (myeloid inhibitory receptor 7), is a member of the leukocyte immunoglobulin (Ig)-like receptor (LIR) family of the Ig superfamily (IgSF).  It belongs to the subfamily B class of LIR receptors (LILRBs), which are single-pass type I trnasmembrane proteins with 2 or 4 extracellular Ig-like domains, a transmembrane domain (TM), and 2-4 cytoplasmic immunoreceptor tyrosine-based inhibitory motifs (ITIMs). LILRB1 contains 4 Ig-like C2 type domains and 4 TIIMs. The phosphorylated ITIM motif can bind the SH2 domain of several SH2-containing phosphatases to modulate cellular responses.  LILRB1 is expressed predominantly on B-cells and monocytes, and at lower levels on dendritic cells. It is also detected on a low percentage of T-cells and natural killer (NK) cells.  LILRB1 binds to MHC class I molecules on antigen-presenting cells (APCs) and transduces a negative signal that inhibits stimulation of an immune response. LILRB1 may control inflammatory responses and cytotoxicity to help focus the immune response and limit autoreactivity. LILRB1 recognizes a broad spectrum of HLA-A, HLA-B, HLA-C and HLA-G alleles. Engagement of LILRB1 present on natural killer cells or T-cells by class I MHC molecules protects the target cells from lysis. LILRB1 also binds FCER1A and FCGR1A. Interaction with HLA-B or HLA-E leads to inhibition of the signal triggered by FCER1A and inhibits serotonin release.  LILRB1 acts as a receptor for H301/UL18, a human cytomegalovirus class I MHC homolog. 

 

Product Details

 

Gene Symbol: LILRB1; ILT2; LIR1; MIR7; PIRB; CD85J; ILT-2; LIR-1; MIR-7; PIR-B

 

NCBI Gene ID: 10859

 

Uniprot Entry: Q8NHL6

 

Construct Details: Full length human LILRB1 gene is subcloned into the Lentiviral expression vector pLTC with an upstream CMV promoter, which can be used for both transient and stable expression in mammalian cells.  It can be co-transfected with the LentiPAK DNA mix (SKU# LP-001) into HEK293 cells to produce high titer lentiviral particles.

 

Vector Type: pLTC (lentiviral expression vector containing a heterologous CMV promoter and with or without a marker, see the vector map above)

 

Formulation: Supplied with 10 μg of endotoxin-free plasmid DNA at 200 ng/μl in sterile TE buffer (pH8.0)

 

Gene Insert Size: 1953 (bp)

 

Gene Insert Sequence:  

ATGACCCCCATCCTCACGGTCCTGATCTGTCTCGGGCTGAGTCTGGGCCCCCGGACCCACGTGCAGGCAG

GGCACCTCCCCAAGCCCACCCTCTGGGCTGAACCAGGCTCTGTGATCACCCAGGGGAGTCCTGTGACCCT

CAGGTGTCAGGGGGGCCAGGAGACCCAGGAGTACCGTCTATATAGAGAAAAGAAAACAGCACCCTGGATT

ACACGGATCCCACAGGAGCTTGTGAAGAAGGGCCAGTTCCCCATCCCATCCATCACCTGGGAACACACAG

GGCGGTATCGCTGTTACTATGGTAGCGACACTGCAGGCCGCTCAGAGAGCAGTGACCCCCTGGAGCTGGT

GGTGACAGGAGCCTACATCAAACCCACCCTCTCAGCCCAGCCCAGCCCCGTGGTGAACTCAGGAGGGAAT

GTAACCCTCCAGTGTGACTCACAGGTGGCATTTGATGGCTTCATTCTGTGTAAGGAAGGAGAAGATGAAC

ACCCACAATGCCTGAACTCCCAGCCCCATGCCCGTGGGTCGTCCCGCGCCATCTTCTCCGTGGGCCCCGT

GAGCCCGAGTCGCAGGTGGTGGTACAGGTGCTATGCTTATGACTCGAACTCTCCCTATGAGTGGTCTCTA

CCCAGTGATCTCCTGGAGCTCCTGGTCCTAGGTGTTTCTAAGAAGCCATCACTCTCAGTGCAGCCAGGTC

CTATCGTGGCCCCTGAGGAGACCCTGACTCTGCAGTGTGGCTCTGATGCTGGCTACAACAGATTTGTTCT

GTATAAGGACGGGGAACGTGACTTCCTTCAGCTCGCTGGCGCACAGCCCCAGGCTGGGCTCTCCCAGGCC

AACTTCACCCTGGGCCCTGTGAGCCGCTCCTACGGGGGCCAGTACAGATGCTACGGTGCACACAACCTCT

CCTCCGAGTGGTCGGCCCCCAGCGACCCCCTGGACATCCTGATCGCAGGACAGTTCTATGACAGAGTCTC

CCTCTCGGTGCAGCCGGGCCCCACGGTGGCCTCAGGAGAGAACGTGACCCTGCTGTGTCAGTCACAGGGA

TGGATGCAAACTTTCCTTCTGACCAAGGAGGGGGCAGCTGATGACCCATGGCGTCTAAGATCAACGTACC

AATCTCAAAAATACCAGGCTGAATTCCCCATGGGTCCTGTGACCTCAGCCCATGCGGGGACCTACAGGTG

CTACGGCTCACAGAGCTCCAAACCCTACCTGCTGACTCACCCCAGTGACCCCCTGGAGCTCGTGGTCTCA

GGACCGTCTGGGGGCCCCAGCTCCCCGACAACAGGCCCCACCTCCACATCTGGCCCTGAGGACCAGCCCC

TCACCCCCACCGGGTCGGATCCCCAGAGTGGTCTGGGAAGGCACCTGGGGGTTGTGATCGGCATCTTGGT

GGCCGTCATCCTACTGCTCCTCCTCCTCCTCCTCCTCTTCCTCATCCTCCGACATCGACGTCAGGGCAAA

CACTGGACATCGACCCAGAGAAAGGCTGATTTCCAACATCCTGCAGGGGCTGTGGGGCCAGAGCCCACAG

ACAGAGGCCTGCAGTGGAGGTCCAGCCCAGCTGCCGATGCCCAGGAAGAAAACCTCTATGCTGCCGTGAA

GCACACACAGCCTGAGGATGGGGTGGAGATGGACACTCGGAGCCCACACGATGAAGACCCCCAGGCAGTG

ACGTATGCCGAGGTGAAACACTCCAGACCTAGGAGAGAAATGGCCTCTCCTCCTTCCCCACTGTCTGGGG

AATTCCTGGACACAAAGGACAGACAGGCGGAAGAGGACAGGCAGATGGACACTGAGGCTGCTGCATCTGA

AGCCCCCCAGGATGTGACCTACGCCCAGCTGCACAGCTTGACCCTCAGACGGGAGGCAACTGAGCCTCCT

CCATCCCAGGAAGGGCCCTCTCCAGCTGTGCCCAGCATCTACGCCACTCTGGCCATCCACTAG

 

 

Primers: Gene insert coding sequence can be confirmed by following primers:

(a) forward (or 5'-end) primer: 5’-CAAATGGGCGGTAGGCGTG-3’;

(b) reverse (or 3'-end) primer: 5’-CCAGGTTTCCGGGCCCTCAC-3’

 

 

Note: The sequence may vary due to the naturally occurring variants or mutations, such as single nucleotide polymorphism, or the artifact during PCR amplification.  High fidelity PCR systems should always be used. 

 

 

 

 

 

FOR RESEARCH USE ONLY. NOT FOR DIAGNOSTIC OR THERAPEUTIC USE IN HUMAN.

Restriction: This product is not transferable or re-sellable.  Customer obtain no right to transfer, assign, or sublicense its use rights, or to transfer, resell, package, or otherwise distribute the product, or to use the product for the benefit of any third party or for any commercial purpose.  Customer may only use the product in compliance with applicable local, state and federal laws, regulations and rules.  Customer may not directly or indirectly use the product or allow the transfer, transmission, export or re-export of all or any part of the product in violation of any export control law or regulation of the united states or any other relevant jurisdiction.  Your use of this product constitutes acceptance of the terms of this limited use agreement.  Please refer to our “terms & conditions” for details.  If you are not willing to accept the limitation of this agreement, G&P Biosciences will accept return of the product for a full/partial refund.

 

Storage

 

The product is shipped at 4°C. Upon receipt, centrifuge the product briefly before opening the vial. It is recommended to store small aliquots at the temperature below –20°C for long-term storage and the product is stable for 6 months. 

 

 

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

 

 

 

FOR RESEARCH USE ONLY. NOT FOR DIAGNOSTIC OR THERAPEUTIC USE IN HUMAN.

 

References

 

 

1. J. Exp. Med. 186:1809-1818(1997)

2. J. Immunol. 159:5192-5196(1997)

3. Eur. J. Immunol. 28:3423-3434(1998)

4. Immunity 11:603-613(1999) 

5. J. Immunol. 168:3351-3359(2002)

 

 

 

Additional supporting documents, including PDS, COA and MSDS are available upon request.

 

 

 

FOR RESEARCH USE ONLY. NOT FOR DIAGNOSTIC OR THERAPEUTIC USE IN HUMAN.

Restriction: This product is not transferable or re-sellable.  Customer obtain no right to transfer, assign, or sublicense its use rights, or to transfer, resell, package, or otherwise distribute the product, or to use the product for the benefit of any third party or for any commercial purpose.  Customer may only use the product in compliance with applicable local, state and federal laws, regulations and rules.  Customer may not directly or indirectly use the product or allow the transfer, transmission, export or re-export of all or any part of the product in violation of any export control law or regulation of the united states or any other relevant jurisdiction.  Your use of this product constitutes acceptance of the terms of this limited use agreement.  Please refer to our “terms & conditions” for details.  If you are not willing to accept the limitation of this agreement, G&P Biosciences will accept return of the product for a full/partial refund.