Reference typing report for complement component C6: protein typing.

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