9LRH: Killer immunoglobulin receptor KIR2DL2

Killer immunoglobulin receptor KIR2DL2 in complex with KIR2DL2_KIR2DL2/3 agonist 61-scFv. Determined by X-ray diffraction at 3.4 Å resolution. Released 15 Oct 2025.

Method
X-ray diffraction
Resolution
3.4 Å
Organism
Homo sapiens
Chains
3
Atoms
3,280
Mol. weight
76.4 kDa
Ligands
NAG
Released
15 Oct 2025

Explore 9LRH in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

9LRH contains 11 α-helices and 50 β-strands across 3 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 H: 2 helices, 13 β-strands

ElementResiduesLengthSheet
β-strand3-647
α-helix7-93
β-strand10-1238
β-strand18-2587
β-strand34-4078
β-strand43-5198
β-strand58-6038
β-strand68-7367
β-strand78-8367
α-helix88-903
β-strand92-101108
β-strand10411
β-strand107-11378
β-strand11417
β-strand117-12158
Chain K: 6 helices, 23 β-strands
ElementResiduesLengthSheet
α-helix27-293
β-strand30-3451
β-strand38-4032
β-strand45-5171
β-strand57-6373
β-strand69-7353
α-helix741
β-strand75-7731
β-strand80-8781
α-helix92-943
β-strand96-10383
β-strand11113
α-helix113-1175
β-strand118-12033
β-strand121-12662
β-strand130-13454
β-strand138-14035
β-strand144-15184
β-strand157-16266
β-strand168-17146
α-helix172-1732
β-strand181-18994
β-strand194-20186
β-strand20812
β-strand20916
β-strand21012
α-helix211-2155
β-strand216-21836
β-strand219-22135
Chain L: 3 helices, 14 β-strands
ElementResiduesLengthSheet
β-strand-619
β-strand-119
β-strand4-7410
β-strand10-13411
β-strand19-25710
β-strand33-38611
α-helix43-442
β-strand45-49511
β-strand53-54211
α-helix551
β-strand62-67610
β-strand70-75610
α-helix80-823
β-strand85-90611
β-strand9718
β-strand98111
β-strand102-106511

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Killer cell immunoglobulin-like receptor 2DL2Kprotein210Homo sapiensP43627 (AlphaFold model)
KIR2DL2_KIR2DL2/3 agonist 61 scFVH, Lprotein253Homo sapiens
Sequence of entity 1 (K), FASTA
>9LRH_1 Killer cell immunoglobulin-like receptor 2DL2 (chains K)
HEGVHRKPSLLAHPGRLVKSEETVILQCWSDVRFEHFLLHREGKFKDTLHLIGEHHDGVS
KANFSIGPMMQDLAGTYRCYGSVTHSPYQLSAPSDPLDIVITGLYEKPSLSAQPGPTVLA
GESVTLSCSSRSSYDMYHLSREGEAHECRFSAGPKVNGTFQADFPLGPATHGGTYRCFGS
FRDSPYEWSNSSDPLLVSVIGNPSHHHHHH
Sequence of entity 2 (H, L), FASTA
>9LRH_2 KIR2DL2_KIR2DL2/3 agonist 61 scFV (chains H, L)
QVQLVQSGAEVKKPGSSVKVSCKASGGTFSSFAISWVRQAPGQGLEWMGGIIPIFGTANY
AQKFQGRVTITADESTSTAYMELSSLRSEDTAVYYCARVSGTTGGYYYGMDVWGQGTLVT
VSSGGGGSGGGGSGGGGSAIRMTQSPSSVSASVGDRVTITCRASQGIGNWLAWYQQKPGR
APKLLISTASSLQSGVPSRFSGGGSGRGFTLTISSLQLEDFATYYCQQSYITPWTFGQGT
KVEIKGALEVLFQ

Ligands and cofactors

IDNameFormulaCopies
NAG2-acetamido-2-deoxy-beta-D-glucopyranoseC8 H15 N O62

Primary citation

Selective agonists of KIR and NKG2A to evade missing self response of natural killer cells. Hiura, S., Kuwasaki, Y., Nishikawa, Y. et al. Sci Rep (2025) 15:33550-33550. DOI 10.1038/s41598-025-18394-z · PubMed

Other PDB entries of the same protein (UniProt P43627 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

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