8Q5R: HpARI

HpARI bound to mouse IL-33. Determined by X-ray diffraction at 2.1 Å resolution. Released 8 May 2024.

Method
X-ray diffraction
Resolution
2.1 Å
Organisms
Mus musculus, Heligmosomoides bakeri
Chains
2
Atoms
2,541
Mol. weight
43.61 kDa
Released
8 May 2024

Explore 8Q5R in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

8Q5R contains 16 α-helices and 31 β-strands across 2 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 4 helices, 12 β-strands

ElementResiduesLengthSheet
α-helix112-1154
β-strand116-125101
β-strand130-13671
β-strand139-14571
β-strand156-16381
β-strand178-18581
β-strand191-19661
β-strand201-20661
α-helix212-2154
β-strand217-22151
α-helix223-2253
β-strand227-23041
β-strand237-24261
β-strand245-25061
α-helix256-2594
β-strand261-26441
Chain B: 12 helices, 19 β-strands
ElementResiduesLengthSheet
β-strand6512
α-helix68-725
α-helix77-793
α-helix84-852
β-strand87-9151
α-helix92-932
β-strand10012
β-strand10612
β-strand11112
β-strand116-12051
β-strand12713
β-strand13014
β-strand133-13641
β-strand139-14131
α-helix1431
β-strand14414
α-helix1451
β-strand14613
α-helix147-1504
β-strand151-15225
α-helix153-1597
β-strand164-16746
α-helix171-1744
α-helix176-1783
α-helix179-1824
β-strand186-18721
β-strand194-19525
β-strand200-20456
β-strand217-22376
β-strand226-22836
α-helix233-2364

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Interleukin-33Aprotein158Mus musculusQ8BVZ5 (AlphaFold model)
Alarmin release inhibitorBprotein237Heligmosomoides bakeriA0A3P7XL18 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>8Q5R_1 Interleukin-33 (chains A)
SIQGTSLLTQSPASLSTYNDQSVSFVLENGCYVINVDDSGKDQEQDQVLLRYYESPCPAS
QSGDGVDGKKVMVNMSPIKDTDIWLHANDKDYSVELQRGDVSPPEQAFFVLHKKSSDFVS
FECKNLPGTYIGVKDNQLALVEEKDESCNNIMFKLSKI
Sequence of entity 2 (B), FASTA
>8Q5R_2 Alarmin release inhibitor (chains B)
AGQRCRFTDVERDKGYTGMLLKGRLRKTAGNGRTVELICGRGNHQYTCESGVLKESSPRQ
ARCGCKGILEMLFDMPKEERPSPMYDSVTYDPTPNTPTTVGKDGIWNGVDYRQGSTVKPY
CDTGPVIQGSSKAVCVSGKWVPTLGVCPKMCSIGSLKENGKFVDVTATTKGDELNPPPRE
QTLIPIVRKVDKDKVQHGVKVVALCKAEDSTTAAEGVQEFECDNGKWKPEPVPCPEP

Primary citation

Structural basis for IL-33 recognition and its antagonism by the helminth effector protein HpARI2. Jamwal, A., Colomb, F., McSorley, H.J. et al. Nat Commun (2024) 15:5226-5226. DOI 10.1038/s41467-024-49550-0 · PubMed

Other PDB entries of the same protein (UniProt Q8BVZ5 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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