WAntibody
WGerald Edelman
WAnti-nuclear antibody
WComplementarity-determining region
WFragment antigen-binding
WFragment crystallizable region
WFramework region
WIGHM
WImmunoglobulin A
WImmunoglobulin D
WImmunoglobulin E
WImmunoglobulin M
WJ chain
WNeuN
WSecretory component