1n26

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Crystal Structure of the extra-cellular domains of Human Interleukin-6 Receptor alpha chain

Structural highlights

1n26 is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.4Å
Ligands:BMA, CYS, MAN, NAG, NDG, SO4
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

IL6RA_HUMAN Part of the receptor for interleukin 6. Binds to IL6 with low affinity, but does not transduce a signal. Signal activation necessitate an association with IL6ST. Activation may lead to the regulation of the immune response, acute-phase reactions and hematopoiesis.[1] [2] Low concentration of a soluble form of IL6 receptor acts as an agonist of IL6 activity.[3] [4]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Dysregulated production of IL-6 and its receptor (IL-6R) are implicated in the pathogenesis of multiple myeloma, autoimmune diseases and prostate cancer. The IL-6R complex comprises two molecules each of IL-6, IL-6R, and the signaling molecule, gp130. Here, we report the x-ray structure (2.4 A) of the IL-6R ectodomains. The N-terminal strand of the Ig-like domain (D(1)) is disulfide-bonded to domain D(2), and domains D(2) and D(3), the cytokine-binding domain, are structurally similar to known cytokine-binding domains. The head-to-tail packing of two closely associated IL-6R molecules observed in the crystal may be representative of the configuration of the physiological dimer of IL-6R and provides new insight into the architecture of the IL-6R complex.

Structure of the extracellular domains of the human interleukin-6 receptor alpha -chain.,Varghese JN, Moritz RL, Lou MZ, Van Donkelaar A, Ji H, Ivancic N, Branson KM, Hall NE, Simpson RJ Proc Natl Acad Sci U S A. 2002 Dec 10;99(25):15959-64. Epub 2002 Dec 2. PMID:12461182[5]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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Citations
16 reviews cite this structure
Principles of interleukin (IL)-6-type cytokine signalling and its regulation.
Heinrich et al. (2003)
15 more
37 other articles
No citations found

See Also

References

  1. ↑ Martens AS, Bode JG, Heinrich PC, Graeve L. The cytoplasmic domain of the interleukin-6 receptor gp80 mediates its basolateral sorting in polarized madin-darby canine kidney cells. J Cell Sci. 2000 Oct;113 ( Pt 20):3593-602. PMID:11017875
  2. ↑ Buk DM, Renner O, Graeve L. Increased association with detergent-resistant membranes/lipid rafts of apically targeted mutants of the interleukin-6 receptor gp80. Eur J Cell Biol. 2005 Oct;84(10):819-31. PMID:16270750
  3. ↑ Martens AS, Bode JG, Heinrich PC, Graeve L. The cytoplasmic domain of the interleukin-6 receptor gp80 mediates its basolateral sorting in polarized madin-darby canine kidney cells. J Cell Sci. 2000 Oct;113 ( Pt 20):3593-602. PMID:11017875
  4. ↑ Buk DM, Renner O, Graeve L. Increased association with detergent-resistant membranes/lipid rafts of apically targeted mutants of the interleukin-6 receptor gp80. Eur J Cell Biol. 2005 Oct;84(10):819-31. PMID:16270750
  5. ↑ Varghese JN, Moritz RL, Lou MZ, Van Donkelaar A, Ji H, Ivancic N, Branson KM, Hall NE, Simpson RJ. Structure of the extracellular domains of the human interleukin-6 receptor alpha -chain. Proc Natl Acad Sci U S A. 2002 Dec 10;99(25):15959-64. Epub 2002 Dec 2. PMID:12461182 doi:http://dx.doi.org/10.1073/pnas.232432399

Contents


PDB ID 1n26

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