Construct: Amino acid replacement: C1677S.
Expression does not alter the fraction of mutant facets in RE8 fafBX3/fafBX4 or RE8 fafBX3/fafBX4 mutants.
Can no longer completely rescue the faf phenotype of fafBX4 : average fraction of wild type facets is ~7% in an otherwise fafBX4 background.