Reference typing report for complement component C6: Protein typing

Within the C6/C7/C9 Session of the VIIth Complement Genetics Workshop and C onference, various C6 protein allotypes collected from four laboratories we re examined using polyacrylamide gel isoelectric focusing (PAGIF) followed by direct immunofixation, Nineteen different variants including 17 recogniz ed allotypes and introducing two new allotypes were distinguished besides t he two common allotypes C6 A and C6 B, They were designated basically accor ding to the previous statement on C6 nomenclature, Details on C6 DNA marker s and associations of C6 markers with deficiencies of terminal complement c omponents are published in the preceding paper of this issue.