>5n4g_H mol:protein length:257 HEAVY CHAIN
QVQLVQSGAEVKKPGASVKVSCKASGYIFTSHPIHWVRQAPGQRPEWMGWINAGNGNTKYSQKFQDRVNLTRDTSASTVFMELINLRFEDTAIYYCIRETKFDPWGQGTLVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPKSCDKGSENLYFQGSWSHPQFEKGGSGGGSGGGSWSHPQFEK