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Entry information

Complex
AACDB_ID: 1161
PDBID: 4ZS7
Chains: HL_A
Organism: Homo sapiens, Lama glama
Method: XRD
Resolution (Å): 2.93
Reference: 10.1074/jbc.M115.695528
Antibody
Antibody: Llama 68F2 Fab
Antibody mutation: No
INN (Clinical Trial):
Antigen
Antigen: Interleukin-6
Antigen mutation: No
Durg Target: P05231

Sequence information

Antibody

Heavy Chain: H
Mutation: NULL

>4ZS7_H|Chain B[auth H]|Llama Fab fragment 68F2 heavy chain|Lama glama (9844)
EVQLQESGPGLVKPSQTLSLTCTVSGGSITTRYYAWSWIRQPPGKGLEWMGVIDYDGDTYYSPSLKSRTSISWDTSKNQFSLQLSSVTPEDTAVYYCARDPDVVTGFHYDYWGQGTQVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEP

Light Chain: L
Mutation: NULL

>4ZS7_L|Chain C[auth L]|Llama Fab fragment 68F2 light chain|Lama glama (9844)
QAVLTQPPLVSGTPGQTVTISCAGANNDIGTYAYVSWYQQLPGTAPKLLIYKVTTRASGIPSRFSGSKSGNTASLTISGLQSEDEADYYCASYRNFNNAVFGRGTHLTVLGQPKAAPSVTLFPPSSEELQANKATLVCLISDFYPGAVTVAWKADSSPVKAGVETTTPSKQSNNKYAASSYLSLTPEQWKSHRSYSCQVTHEGSTVEKTVAPTECS

Antigen

Chain: A
Mutation: NULL

>4ZS7_A|Chain A|Interleukin-6|Homo sapiens (9606)
PHRQPLTSSERIDKQIRYILDGISALRKETCNKSNMCESSKEALAENNLNLPKMAEKDGCFQSGFNEETCLVKIITGLLEFEVYLEYLQNRFESSEEQARAVQMSTKVLIQFLQKKAKNLDAITTPDPTTNASLLTKLQAQNQWLQDMTTHLILRSFKEFLQSSLRALRQM

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)

H: ARG32 TYR33 ASP54 TYR55 ASP56 GLY57 ASP58 THR59 TYR60 ASP102 VAL103 VAL104 THR105 GLY106 PHE107

L: ASN26 ASN27 GLY30 THR31 TYR32 ALA33 TYR34 LYS52 LYS68 ASN71 TYR93 ASN95 PHE96 ASN97

A: ASP26 ARG30 LEU33 ASP34 SER37 ARG40 LYS66 MET67 GLU69 CYS73 PHE74 GLN75 SER76 HIS164 ARG168 LYS171 GLU172 GLN175 SER176 LEU178 ARG179 ALA180 ARG182 GLN183

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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