TABLE 4.
Summary of genes identified
| Complementation groupa | No. of alleles | Gene | Open reading frame |
|---|---|---|---|
| NUT1 | 1 | NUT1 | YGL151w |
| NUT2 | 1 | NUT2 | YPR168w |
| NUT3 | 1 | ROX3 | YBL093c |
| NUT6 | 5 | SRB8b | YCR081w |
| NUT7 | 2 | SRB10b | YPL042c |
| NUT8 | 1 | SRB9b | YDR443c |
| NUT9 | 1 | SRB11b | YNL025c |
| NUT21 | 1 | CCR4 | YAL021c |
a
Mutants defective in the complementation groups NUT4 and NUT5 are both complemented by a high-copy-number plasmid containing RGR1 (58a). Further analysis will be required to determine if either or both of these complementation groups are allelic to RGR1 as mutations in nut4 and nut5 could exhibit intra-allelic complementation.
b
Allelism tests were not performed.