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9R2E

Structure of ARGX-121 Fab fragment in complex with the Fc fragment of IgA1

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, E
(H, A)
ARGX-121 Fab fragment heavy chainpolymer24425904.12Homo sapiens
2B, F
(L, B)
ARGX-121 Fab fragment light chainpolymer23524725.72Homo sapiens
3C, D
(P, Q)
Isoform 1 of Immunoglobulin heavy constant alpha 1polymer21323155.32UniProt (P01876)
Pfam (PF00047)
Pfam (PF07654)
Homo sapiens (human)Ig alpha-1 chain C region,Ig alpha-1 chain C region BUR,Ig alpha-1 chain C region TRO
4G, H, N, Q
(H, A)
1,2-ETHANEDIOLnon-polymer62.14Chemie (EDO)
5I, J, M, O, P
(H, L, A)
DI(HYDROXYETHYL)ETHERnon-polymer106.15Chemie (PEG)
6K, L, R
(L, P, B)
MAGNESIUM IONnon-polymer24.33Chemie (MG)
7S, T, U, V, W...
(H, L, P, Q, A...)
waterwater18.0377Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains6
Total formula weight147570.1
Non-Polymers*Number of molecules12
Total formula weight851.8
All*Total formula weight148421.9
*Water molecules are not included.

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PDB entries from 2025-06-18

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