8VQN: Hemagglutinin HA1 chain

Crystal structure of the A/Puerto Rico/8/1934 (H1N1) influenza virus hemagglutinin in complex with small molecule 6R. Determined by X-ray diffraction at 2.21 Å resolution. Released 5 Jun 2024.

Method
X-ray diffraction
Resolution
2.21 Å
Organism
Influenza A virus (A/Puerto Rico/8/1934(H1N1))
Chains
2
Atoms
4,170
Mol. weight
62.78 kDa
Ligands
A1ADV
Released
5 Jun 2024

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

Secondary structure: helices and β-sheets

8VQN contains 13 α-helices and 51 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: 7 helices, 42 β-strands

ElementResiduesLengthSheet
β-strand12-1761
β-strand1812
β-strand25-2623
β-strand34-3523
β-strand3614
β-strand39-4135
β-strand43-4426
β-strand51-5447
β-strand5617
β-strand59-6028
β-strand6419
α-helix66-716
α-helix77-804
β-strand82-83A310
β-strand87-8938
β-strand9519
β-strand102110
α-helix105-1128
β-strand115-122810
β-strand131111
β-strand136-141612
β-strand144-146312
β-strand151-153310
β-strand155111
β-strand164-169613
β-strand175-1841010
α-helix188-1958
β-strand202-205413
β-strand210-213413
β-strand223114
β-strand226114
β-strand229-237910
α-helix2381
β-strand242-247613
β-strand251-254410
β-strand256-262710
β-strand267-26938
α-helix272-2732
β-strand274-27967
β-strand281-282215
β-strand287115
β-strand294-29526
β-strand301116
β-strand302-303215
β-strand305117
α-helix3061
β-strand307-30826
β-strand315-31735
β-strand32114
Chain B: 6 helices, 9 β-strands
ElementResiduesLengthSheet
β-strand6118
β-strand10118
β-strand1412
β-strand22-2871
β-strand31-3661
α-helix38-5821
α-helix60-612
β-strand62117
β-strand65116
α-helix75-12652
α-helix127-1293
β-strand130-13231
β-strand137-14041
α-helix146-1538
α-helix159-17012

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Hemagglutinin HA1 chainAprotein322Influenza A virus (A/Puerto Rico/8/1934(H1N1))P03452 (AlphaFold model)
Hemagglutinin HA2 chainBprotein222Influenza A virus (A/Puerto Rico/8/1934(H1N1))P03452 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>8VQN_1 Hemagglutinin HA1 chain (chains A)
DTICIGYHANNSTDTVDTVLEKNVTVTHSVNLLEDSHNGKLCRLKGIAPLQLGKCNIAGW
LLGNPECDPLLPVRSWSYIVETPNSENGICYPGDFIDYEELREQLSSVSSFERFEIFPKE
SSWPNHNTNGVTAACSHEGKSSFYRNLLWLTEKEGSYPKLKNSYVNKKGKEVLVLWGIHH
PPNSKEQQNLYQNENAYVSVVTSNYNRRFTPEIAERPKVRDQAGRMNYYWTLLKPGDTII
FEANGNLIAPMYAFALSRGFGSGIITSNASMHECNTKCQTPLGAINSSLPYQNIHPVTIG
ECPKYVRSAKLRMVTGLRNIPS
Sequence of entity 2 (B), FASTA
>8VQN_2 Hemagglutinin HA2 chain (chains B)
GLFGAIAGFIEGGWTGMIDGWYGYHHQNEQGSGYAADQKSTQNAINGITNKVNTVIEKMN
IQFTAVGKEFNKLEKRMENLNKKVDDGFLDIWTYNAELLVLLENERTLDFHDSNVKNLYE
KVKSQLKNNAKEIGNGCFEFYHKCDNECMESVRNGTYDYPKYSEESKLNREKVDGVKLES
MGIYQILAIYSTVASSLVLLVSLGAISFWMCSNGSLQCRICI

Ligands and cofactors

IDNameFormulaCopies
A1ADV(S~1~S,3R)-N-{3-chloro-4-[(2S)-2-phenylmorpholine-4-carbonyl]phenyl}-3-(dimethy…C23 H28 Cl F N4 O3 S1

Primary citation

Ultrapotent influenza hemagglutinin fusion inhibitors developed through SuFEx-enabled high-throughput medicinal chemistry. Kitamura, S., Lin, T.H., Lee, C.D. et al. Proc Natl Acad Sci U S A (2024) 121:e2310677121-e2310677121. DOI 10.1073/pnas.2310677121 · PubMed

Other PDB entries of the same protein (UniProt P03452 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

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