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Entry information

Complex
AACDB_ID: 557
PDBID: 3K74
Chains: B_A
Organism: Escherichia coli K-12, Lama glama
Method: XRD
Resolution (Å): 1.95
Reference: 10.1016/j.jmb.2011.01.017
Antibody
Antibody: 216 Nanobody
Antibody mutation: No
INN (Clinical Trial):
Antigen
Antigen: Dihydrofolate reductase
Antigen mutation: No
Durg Target: P0ABQ4

Sequence information

Antibody

Chain: B
Mutation: NULL

>3K74_B|Chain B|Nanobody|Lama glama (9844)
QLQESGGGLVQPGGSLRLSCAASGFTFNNYWMYWVRRAPGKGLEWVSMINPGGIITKYAESVKGRFTISRDNAKNTLYLQMNSLTSEDTAVYYCAKDWATGLAKKGQGTQVTVSS

Antigen

Chain: A
Mutation: NULL

>3K74_A|Chain A|Dihydrofolate reductase|Escherichia coli K-12 (83333)
MISLIAALAVDRVIGMENAMPWNLPADLAWFKRNTLNKPVIMGRHTWESIGRPLPGRKNIILSSQPGTDDRVTWVKSVDEAIAACGDVPEIMVIGGGRVYEQFLPKAQKLYLTHIDAEVEGDTHFPDYEPDDWESVFSEFHDADAQNSHSYCFEILERR

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)

B: TRP192 TYR194 GLY203 LEU204 TRP206 MET209 ASN211 PRO212 ILE215 ILE216 THR217 LYS218 TYR219 ALA220 GLU221 LYS224 TRP259 ALA260 THR261 GLY262

A: GLU17 ASN18 ALA19 MET20 PRO21 TRP22 ASN23 ASP116 ALA117 GLU118 VAL119 GLU120 ALA143 ASP144 ALA145 GLN146 SER148 HIS149

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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