| P05057 | DB02596 | 1kny | APC | A | 556 | e1knyA1 | Four-helical up-and-down bundle | HEPN | Nucleotidyltransferase substrate binding subunit/domain | KNTase_C |
| P05057 | DB02596 | 1kny | APC | A | 556 | e1knyA2 | Nucleotidyltransferase-like | Nucleotidyltransferase | Nucleotidyltransferase | n/a |
| P05057 | DB02596 | 1kny | APC | A | 556 | e1knyB1 | Four-helical up-and-down bundle | HEPN | Nucleotidyltransferase substrate binding subunit/domain | KNTase_C |
| P05057 | DB02596 | 1kny | APC | B | 557 | e1knyA1 | Four-helical up-and-down bundle | HEPN | Nucleotidyltransferase substrate binding subunit/domain | KNTase_C |
| P05057 | DB02596 | 1kny | APC | B | 557 | e1knyB1 | Four-helical up-and-down bundle | HEPN | Nucleotidyltransferase substrate binding subunit/domain | KNTase_C |
| P05057 | DB02596 | 1kny | APC | B | 557 | e1knyB2 | Nucleotidyltransferase-like | Nucleotidyltransferase | Nucleotidyltransferase | NTP_transf_2 |