1U3E
DNA binding and cleavage by the HNH homing endonuclease I-HmuI
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
| Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| D [auth M] | d1u3em1 | Alpha and beta proteins (a+b) | His-Me finger endonucleases | His-Me finger endonucleases | Intron-encoded homing endonucleases | Intron-encoded homing endonuclease I-HmuI | (Okubovirus SPO1 ) [TaxId: 10685 ], | SCOPe (2.08) |
| D [auth M] | d1u3em2 | Alpha and beta proteins (a+b) | DNA-binding domain of intron-encoded endonucleases | DNA-binding domain of intron-encoded endonucleases | DNA-binding domain of intron-encoded endonucleases | Intron-encoded homing endonuclease I-HmuI | (Okubovirus SPO1 ) [TaxId: 10685 ], | SCOPe (2.08) |
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| D [auth M] | SCOP2 Family | DNA-binding domain of intron-encoded endonucleases | 8028322 | 4003725 | SCOP2 (2021-05-27) |
| D [auth M] | SCOP2 Family | Intron-encoded homing endonucleases | 8028321 | 4000891 | SCOP2 (2021-05-27) |
| D [auth M] | SCOP2 Superfamily | DNA-binding domain of intron-encoded endonucleases | 8040701 | 3001361 | SCOP2 (2021-05-27) |
| D [auth M] | SCOP2 Superfamily | His-Me finger endonucleases | 8040700 | 3001893 | SCOP2 (2021-05-27) |
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| D [auth M] | PF22083 | e1u3eM1 | A: alpha arrays | X: HTH | H: HTH | T: DNA-binding domain of intron-encoded endonucleases | F: PF22083 | ECOD (1.6) |
| D [auth M] | PF07463,PF13392 | e1u3eM2 | A: few secondary structure elements | X: His-Me finger endonucleases (From Homology) | H: His-Me finger endonucleases | T: His-Me finger endonucleases | F: PF07463,PF13392 | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
| Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
|---|---|---|---|---|---|---|
| D [auth M] | 3.90.75.20 | Alpha Beta | Alpha-Beta Complex | Homing Intron 3 (I-Ppo) Encoded Endonuclease | Chain A | CATH (4.3.0) |
| D [auth M] | 1.10.10.10 | Mainly Alpha | Orthogonal Bundle | Arc Repressor Mutant, subunit A | Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain | CATH (4.3.0) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| D [auth M] | PF13392 | HNH endonuclease (HNH_3) | HNH endonuclease | This is a zinc-binding loop of Fold group 7 [1] as found in endo-deoxy-ribonucleases and HNH nucleases. | Domain |
| D [auth M] | PF07463 | NUMOD4 motif (NUMOD4) | NUMOD4 motif | - | Motif |
| D [auth M] | PF22083 | DNA endonuclease I-HmuI-like, NUMOD-like domain (I-HmuI_NUMOD-like) | DNA endonuclease I-HmuI-like, NUMOD-like domain | This entry represents a C-terminal NUMOD1-like DNA-binding (HTH superfamily) domain present in a set of intron-encoded endonucleases (homing endonucleases) such as I-HmuI from Bacteriophage SP01 and similar proteins [1]. | Domain |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
| Chains | Polymer | Molecular Function | Biological Process | Cellular Component |
|---|---|---|---|---|
| 36-MER | - | - | - | |
| 5'-D(*CP*TP*TP*AP*CP*GP*TP*GP*GP*GP*AP*AP*TP*TP*GP*CP*TP*GP*AP*GP*C)-3' | - | - | - | |
| 5'-D(P*GP*TP*TP*AP*GP*GP*CP*TP*CP*AP*TP*TP*AP*CP*T)-3' | - | - | - | |
| D [auth M] | HNH homing endonuclease | - |
InterPro: Protein Family Classification InterPro Database Homepage
| Chains | Accession | Name | Type |
|---|---|---|---|
| D [auth M] | IPR003647 | Intron encoded nuclease repeat | Repeat |
| D [auth M] | IPR010902 | NUMOD4 | Domain |
| D [auth M] | IPR036388 | Winged helix-like DNA-binding domain superfamily | Homologous Superfamily |
| D [auth M] | IPR044925 | His-Me finger superfamily | Homologous Superfamily |
| D [auth M] | IPR003615 | HNH nuclease | Domain |
