>6o2b_E mol:protein length:121 Anti-kappa VHH domainXVQLXXSGGGXVQXGXSLXLSCXAXXXXXXXXXXXWXRQXPGXXREXVXXXXXXXXXXXXXDSXXGRFTXSXDXXXXXXXLQXXXLXXXDXAXYYCXXXXXXXXXXXXXXWGXGTXVTVSS