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Entry information

Complex
AACDB_ID: 3292
PDBID: 6Z20
Chains: D_C
Organism: Homo sapiens, Lama glama
Method: XRD
Resolution (Å): 2.68
Reference: 10.26508/lsa.202000883
Antibody
Antibody: 4C8 Nanobody
Antibody mutation: No
INN (Clinical Trial):
Antigen
Antigen: EC2 domain of CD9
Antigen mutation: No
Durg Target: P21926

Sequence information

Antibody

Chain: D
Mutation: NULL

>6Z20_D|Chain B, D|Nanobody 4C8|Lama glama (9844)
EVQLVESGGGLVQAGGSLRLSCAASGRTFSDYVMGWFRQAPGKERTFVARIGWSGDLTYYADSVKGRFTISRDNAKNTVYLQMNSLKPEDTAIYYCAADERWGTGGKFDYWGQGTQVTVSSHGSGLVPR

Antigen

Chain: C
Mutation: NULL

>6Z20_C|Chain A, C|CD9 antigen|Homo sapiens (9606)
GSKDEVIKEVQEFYKDTYNKLKTKDEPQRETLKAIHYALNCCGLAGGVEQFISDICPKKDVLETFTVKSCPDAIKEVFDNAAAHHHHHH

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)

D: SER30 ASP31 PHE47 ARG50 TRP53 SER54 ASP56 LEU57 THR58 TYR59 GLU100 ARG101 TRP102 GLY103 THR104 GLY105 GLY106 LYS107

C: ALA156 GLY157 GLY158 VAL159 GLU160 GLN161 SER164 LYS169 LEU173 GLU174 THR175 PHE176 THR177 VAL178

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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