1ykb

From Proteopedia

Crystal Structure of Insect Cell Expressed IL-22

Structural highlights

1ykb is a 6 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 2.6Å
Ligands:	FUC, MAN, NAG
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

IL22_HUMAN Cytokine that contributes to the inflammatory response in vivo.

Evolutionary Conservation

Checkto colour the structure by Evolutionary Conservation, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The crystal structure of interleukin-22 expressed in Drosophila melanogaster S2 cells (IL-22(Dm)) has been determined at 2.6 A resolution. IL-22(Dm) crystals contain six molecules in the asymmetric unit. Comparison of IL-22(Dm) and IL-22(Ec) (interleukin-22 produced in Escherichia coli) structures reveals that N-linked glycosylation causes only minor structural changes to the cytokine. However, 1-4 A main-chain differences are observed between the six IL-22(Dm) monomers at regions corresponding to the IL-22R1 and IL-10R2 binding sites. The structure of the carbohydrate and the conformational variation of IL22(Dm) provide new insights into IL-22 receptor recognition.

Structure of insect-cell-derived IL-22.,Xu T, Logsdon NJ, Walter MR Acta Crystallogr D Biol Crystallogr. 2005 Jul;61(Pt 7):942-50. Epub 2005, Jun 24. PMID:15983417^[1]

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

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Citations

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References

↑ Xu T, Logsdon NJ, Walter MR. Structure of insect-cell-derived IL-22. Acta Crystallogr D Biol Crystallogr. 2005 Jul;61(Pt 7):942-50. Epub 2005, Jun 24. PMID:15983417 doi:10.1107/S0907444905009601