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Entry information

Complex
AACDB_ID: 6854
PDBID: 4HG4
Chains: XY_H
Organism: Influenza A virus (A/Japan/305+/1957(H2N2)), Homo sapiens
Method: XRD
Resolution (Å): 3.20
Reference: 10.1038/nsmb.2500
Antibody
Antibody: 2G1 Fab
Antibody mutation: No
INN (Clinical Trial):
Antigen
Antigen: Influenza A virus H2N2 hemagglutinin HA1
Antigen mutation: No
Durg Target:

Sequence information

Antibody

Heavy Chain: X
Mutation: NULL

>4HG4_X|Chain AA[auth J], CA[auth L], EA[auth N], GA[auth P], IA[auth R], S[auth T], U[auth V], W[auth X], Y[auth Z]|Fab 2G1 heavy chain|Homo sapiens (9606)
EVQLVESGAEVKKPGSSVKVSCKASGGTFITHVFTWVRQAPGQGLEWVGGFIAIFGTSNYAQKFQGRVTITADESTSTAYMELTSLTSEDTAVYYCARGISGSYGWFDPWGQGTLVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPKSC

Light Chain: Y
Mutation: NULL

>4HG4_Y|Chain BA[auth K], DA[auth M], FA[auth O], HA[auth Q], JA[auth S], T[auth U], V[auth W], X[auth Y], Z[auth z]|Fab 2G1 light chain|Homo sapiens (9606)
DIQLTQSPSSLSASVGDRVTITCQASQDIRKYLNWYQQKPGKAPNLLIYDASNVKTGVPSRFRGSGSGTDFTFTISSLQPEDIATYYCQQYDNLPITFGQGTRLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC

Antigen

Chain: H
Mutation: NULL

>4HG4_H|Chain A, C[auth B], E[auth C], G[auth D], I[auth E], K[auth F], M[auth G], O[auth H], Q[auth I]|Hemagglutinin HA1|Influenza A virus (382813)
PGDQICIGYHANNSTEKVDTILERNVTVTHAKDILEKTHNGKLCKLNGIPPLELGDCSIAGWLLGNPECDRLLSVPEWSYIMEKENPRDGLCYPGSFNDYEELKYLLSSVKHFEKVKILPKDRWTQHTTTGGSRACAVSGNPSFFRNMVWLTKKGSDYPVAKGSYNNTSGEQMLIIWGVHHPNDETEQRTLYQNVGTYVSVGTSTLNKRSTPEIATRPKVNGLGSRMEFSWTLLDMWDTINFESTGNLIAPEYGFKISKRGSSGIMKTEGTLENCETKCQTPLGAINTTLPFHNVHPLTIGECPRYVKSEKLVLATGLRNVPQIESR

Interaction

1、Solvent accessible surface areas (SASA) were calculated (Naccess V2.1.1) for each residue in antibody and antigen, respectively. The residues with SASA loss in binding of more than 1Å2 were classified as interacting residues.

Interacting residues (ΔSASA based)

X: THR28 ILE30 THR31 PHE51 ALA52 ILE53 PHE54 GLY55 THR56 ASN58 GLU73 ILE96 SER97 GLY98 SER99

Y: ARG30 TYR32 TYR49 ASP50 TYR91 ASP92 LEU94

H: THR128 GLN129 THR131 THR133 GLY134 GLY135 SER136 ARG137 PRO145 TRP153 THR155 LYS156 LYS157 GLY158 SER159 ASP160 PRO162 ASP187 THR189 GLU190 THR193 LEU194

2、We defined interacting paratope-epitope residues by a distance cutoff of < 5Å . Two amino acids are considered as interacting residues if they have at least one atom within a distance of 5 Å from any atom.

Interacting residues (Atom distance based)

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