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HMDB Protein ID HMDBP07769
Secondary Accession Numbers
  • 13478
Name Leukocyte-associated immunoglobulin-like receptor 1
  1. CD305 antigen
  2. LAIR-1
  3. hLAIR1
Gene Name LAIR1
Protein Type Unknown
Biological Properties
General Function Involved in protein binding
Specific 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, downregulating 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
Pathways Not Available
Reactions Not Available
GO Classification Not Available
Cellular Location
  1. Cell membrane
  2. Single-pass type I membrane protein
Gene Properties
Chromosome Location Chromosome:1
Locus 19q13.4
Gene Sequence
>864 bp
Protein Properties
Number of Residues 287
Molecular Weight 31411.8
Theoretical pI 5.37
Pfam Domain Function Not Available
  • 1-21
Transmembrane Regions
  • 166-186
Protein Sequence
>Leukocyte-associated immunoglobulin-like receptor 1
GenBank ID Protein 2352941
UniProtKB/Swiss-Prot ID Q6GTX8
UniProtKB/Swiss-Prot Entry Name LAIR1_HUMAN
PDB IDs Not Available
GenBank Gene ID AF013249
GeneCard ID LAIR1
GenAtlas ID LAIR1
General References
  1. Wollscheid B, Bausch-Fluck D, Henderson C, O'Brien R, Bibel M, Schiess R, Aebersold R, Watts JD: Mass-spectrometric identification and relative quantification of N-linked cell surface glycoproteins. Nat Biotechnol. 2009 Apr;27(4):378-86. doi: 10.1038/nbt.1532. Epub 2009 Apr 6. [PubMed:19349973 ]
  2. Gerhard DS, Wagner L, Feingold EA, Shenmen CM, Grouse LH, Schuler G, Klein SL, Old S, Rasooly R, Good P, Guyer M, Peck AM, Derge JG, Lipman D, Collins FS, Jang W, Sherry S, Feolo M, Misquitta L, Lee E, Rotmistrovsky K, Greenhut SF, Schaefer CF, Buetow K, Bonner TI, Haussler D, Kent J, Kiekhaus M, Furey T, Brent M, Prange C, Schreiber K, Shapiro N, Bhat NK, Hopkins RF, Hsie F, Driscoll T, Soares MB, Casavant TL, Scheetz TE, Brown-stein MJ, Usdin TB, Toshiyuki S, Carninci P, Piao Y, Dudekula DB, Ko MS, Kawakami K, Suzuki Y, Sugano S, Gruber CE, Smith MR, Simmons B, Moore T, Waterman R, Johnson SL, Ruan Y, Wei CL, Mathavan S, Gunaratne PH, Wu J, Garcia AM, Hulyk SW, Fuh E, Yuan Y, Sneed A, Kowis C, Hodgson A, Muzny DM, McPherson J, Gibbs RA, Fahey J, Helton E, Ketteman M, Madan A, Rodrigues S, Sanchez A, Whiting M, Madari A, Young AC, Wetherby KD, Granite SJ, Kwong PN, Brinkley CP, Pearson RL, Bouffard GG, Blakesly RW, Green ED, Dickson MC, Rodriguez AC, Grimwood J, Schmutz J, Myers RM, Butterfield YS, Griffith M, Griffith OL, Krzywinski MI, Liao N, Morin R, Palmquist D, Petrescu AS, Skalska U, Smailus DE, Stott JM, Schnerch A, Schein JE, Jones SJ, Holt RA, Baross A, Marra MA, Clifton S, Makowski KA, Bosak S, Malek J: The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). Genome Res. 2004 Oct;14(10B):2121-7. [PubMed:15489334 ]
  3. Meyaard L, Adema GJ, Chang C, Woollatt E, Sutherland GR, Lanier LL, Phillips JH: LAIR-1, a novel inhibitory receptor expressed on human mononuclear leukocytes. Immunity. 1997 Aug;7(2):283-90. [PubMed:9285412 ]
  4. Meyaard L, Hurenkamp J, Clevers H, Lanier LL, Phillips JH: Leukocyte-associated Ig-like receptor-1 functions as an inhibitory receptor on cytotoxic T cells. J Immunol. 1999 May 15;162(10):5800-4. [PubMed:10229813 ]
  5. Xu Mj, Zhao R, Zhao ZJ: Identification and characterization of leukocyte-associated Ig-like receptor-1 as a major anchor protein of tyrosine phosphatase SHP-1 in hematopoietic cells. J Biol Chem. 2000 Jun 9;275(23):17440-6. [PubMed:10764762 ]
  6. Poggi A, Tomasello E, Ferrero E, Zocchi MR, Moretta L: p40/LAIR-1 regulates the differentiation of peripheral blood precursors to dendritic cells induced by granulocyte-monocyte colony-stimulating factor. Eur J Immunol. 1998 Jul;28(7):2086-91. [PubMed:9692876 ]
  7. van der Vuurst de Vries AR, Clevers H, Logtenberg T, Meyaard L: Leukocyte-associated immunoglobulin-like receptor-1 (LAIR-1) is differentially expressed during human B cell differentiation and inhibits B cell receptor-mediated signaling. Eur J Immunol. 1999 Oct;29(10):3160-7. [PubMed:10540327 ]
  8. Poggi A, Pellegatta F, Leone BE, Moretta L, Zocchi MR: Engagement of the leukocyte-associated Ig-like receptor-1 induces programmed cell death and prevents NF-kappaB nuclear translocation in human myeloid leukemias. Eur J Immunol. 2000 Oct;30(10):2751-8. [PubMed:11069054 ]
  9. Sathish JG, Johnson KG, Fuller KJ, LeRoy FG, Meyaard L, Sims MJ, Matthews RJ: Constitutive association of SHP-1 with leukocyte-associated Ig-like receptor-1 in human T cells. J Immunol. 2001 Feb 1;166(3):1763-70. [PubMed:11160222 ]
  10. Saverino D, Fabbi M, Merlo A, Ravera G, Grossi CE, Ciccone E: Surface density expression of the leukocyte-associated Ig-like receptor-1 is directly related to inhibition of human T-cell functions. Hum Immunol. 2002 Jul;63(7):534-46. [PubMed:12072189 ]
  11. Verbrugge A, Ruiter Td Td, Clevers H, Meyaard L: Differential contribution of the immunoreceptor tyrosine-based inhibitory motifs of human leukocyte-associated Ig-like receptor-1 to inhibitory function and phosphatase recruitment. Int Immunol. 2003 Nov;15(11):1349-58. [PubMed:14565933 ]
  12. Aoukaty A, Lee IF, Wu J, Tan R: Chronic active Epstein-Barr virus infection associated with low expression of leukocyte-associated immunoglobulin-like receptor-1 (LAIR-1) on natural killer cells. J Clin Immunol. 2003 Mar;23(2):141-5. [PubMed:12757266 ]
  13. De Milito A, Nilsson A, Titanji K, Thorstensson R, Reizenstein E, Narita M, Grutzmeier S, Sonnerborg A, Chiodi F: Mechanisms of hypergammaglobulinemia and impaired antigen-specific humoral immunity in HIV-1 infection. Blood. 2004 Mar 15;103(6):2180-6. Epub 2003 Nov 6. [PubMed:14604962 ]
  14. Merlo A, Tenca C, Fais F, Battini L, Ciccone E, Grossi CE, Saverino D: Inhibitory receptors CD85j, LAIR-1, and CD152 down-regulate immunoglobulin and cytokine production by human B lymphocytes. Clin Diagn Lab Immunol. 2005 Jun;12(6):705-12. [PubMed:15939744 ]
  15. Maasho K, Masilamani M, Valas R, Basu S, Coligan JE, Borrego F: The inhibitory leukocyte-associated Ig-like receptor-1 (LAIR-1) is expressed at high levels by human naive T cells and inhibits TCR mediated activation. Mol Immunol. 2005 Aug;42(12):1521-30. Epub 2005 Feb 24. [PubMed:15950745 ]
  16. Verbrugge A, Rijkers ES, de Ruiter T, Meyaard L: Leukocyte-associated Ig-like receptor-1 has SH2 domain-containing phosphatase-independent function and recruits C-terminal Src kinase. Eur J Immunol. 2006 Jan;36(1):190-8. [PubMed:16380958 ]