>7xst_O mol:protein length:110 D2 light chainQSVLTQPPSVSAAPGQKVAISCSGSTSNIGDNFVSWYQQFPGTAPKLLLYDDARRPSGIPDRFSGSKSGTSATLGITGLQTGDEAVYFCSTWDNSLNVVLFGGGTKLTVL