1z92 Summary

pdbe.org/1z92
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structure of interleukin-2 with its alpha receptor

The structure was published by Rickert, M., Wang, X., Boulanger, M.J., Goriatcheva, N., and Garcia, K.C., in 2005 in a paper entitled "The structure of interleukin-2 complexed with its alpha receptor." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 2.8 Å and deposited in 2005.

The experimental data on which the structure is based was also deposited.

This PDB entry contains a complex of 2 biomacromolecules, namely Interleukin-2 and Interleukin-2 receptor alpha chain.

The molecule most likely forms heterodimers.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A Interleukin-2 P60568 (21-153) (IL2_HUMAN)search Homo sapienssearch 99% 133 90%
B Interleukin-2 receptor alpha chain P01589 (22-238) (IL2RA_HUMAN)search Homo sapienssearch < 90% 219 56%


This entry contains 2 unique UniProt proteins:

UniProt accession Name Organism PDB
P60568 (21 - 153) Interleukin-2 Homo sapiens
P01589 (22 - 238) Interleukin-2 receptor alpha chain Homo sapiens

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
A (P60568) Short-chain cytokinessearch Growth Hormone; Chain: A;search PF00715: Interleukin 2search
B Complement control module/SCR domainsearch Complement Module, domain 1search Sushi domain (SCR repeat)search

Chain ID Biological process (GO) Cellular component (GO) Molecular function (GO)
A (P60568) immune responsesearch positive regulation of B cell proliferationsearch positive regulation of T cell proliferationsearch positive regulation of cytosolic calcium ion concentrationsearch positive regulation of transcription from RNA polymerase II promotersearch negative regulation of apoptotic processsearch positive regulation of isotype switching to IgG isotypessearch positive regulation of tissue remodelingsearch positive regulation of activated T cell proliferationsearch extrinsic apoptotic signaling pathway in absence of ligandsearch negative regulation of inflammatory responsesearch positive regulation of tyrosine phosphorylation of Stat5 proteinsearch negative regulation of B cell apoptotic processsearch G-protein coupled receptor signaling pathwaysearch T cell differentiationsearch cell-cell signalingsearch positive regulation of cell growthsearch positive regulation of interleukin-17 productionsearch positive regulation of cell proliferationsearch regulation of T cell homeostatic proliferationsearch positive regulation of regulatory T cell differentiationsearch immune system processsearch positive regulation of interferon-gamma productionsearch positive regulation of T cell differentiationsearch negative regulation of protein phosphorylationsearch natural killer cell activationsearch negative regulation of heart contractionsearch cell adhesionsearch positive regulation of immunoglobulin secretionsearch positive regulation of inflammatory responsesearch positive regulation of dendritic spine developmentsearch positive regulation of protein phosphorylationsearch protein kinase C-activating G-protein coupled receptor signaling pathwaysearch negative regulation of lymphocyte proliferationsearch extracellular regionsearch extracellular spacesearch growth factor activitysearch interleukin-2 receptor bindingsearch kappa-type opioid receptor bindingsearch glycosphingolipid bindingsearch cytokine activitysearch carbohydrate bindingsearch kinase activator activitysearch

Chain InterPro annotation
A Interleukin-2search Four-helical cytokine-like, coresearch Four-helical cytokine, coresearch
B Sushi/SCR/CCP domainsearch Interleukin-2 receptor alphasearch