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Biochim Biophys Acta. 2001 Mar 19;1518(1-2):157-61.

Identification of hTLR10: a novel human Toll-like receptor preferentially expressed in immune cells.

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Department of Immunology, The Scripps Research Institute, 10550 North Torrey Pines Road, 92037, La Jolla, CA, USA.


Herein we describe the isolation of a cDNA encoding a novel human Toll-like receptor (hTLR) that we term hTLR10. Human TLR10 contains 811 amino acid residues. Deduced amino acid sequence analysis reveals that like the other known hTLRs (hTLR1-9) it is characterized by a signal peptide followed by multiple leucine-rich repeats (LRRs), a cysteine-rich domain, a transmembrane sequence and a cytoplasmic domain homologous to that of the human interleukin-1 receptor. Phylogenetic analysis indicates that among all the hTLRs, hTLR10 is most closely related to hTLR1 and hTLR6; the overall amino acid identity is 50% and 49%, respectively. hTLR10 mRNA is most highly expressed in lymphoid tissues such as spleen, lymph node, thymus, and tonsil. Expression analysis of cell lines indicates a predominance in a variety of immune cell types. Thus, hTLR10 is preferentially expressed in tissues and cells involved in immune responses.

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