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| Annotation rule MF_04160 |
General rule information
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| Accession | MF_04160 |
| Dates | 6-APR-2021 (Created) 20-APR-2021 (Last updated, Version 2) |
| Name | NUCL_HEAD_T4 |
| Scope | Viruses |
| Template | P15075 (HDNUC_BPT4) |
| Triggered by |
Propagated annotation
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Identifier, protein and gene names
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| Identifier |
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| Protein name |
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Comments
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| Function | During phage morphogenesis, plays an essential role in the head-tail joining step. The associated nuclease activity is essential for morphogenesis, possibly by cleaving packaged DNA to enable the joining of heads to tails. Displays both exo- and endonuclease activity. |
| Similarity | Belongs to the Caudovirales head completion nuclease family. |
Keywords
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Gene Ontology
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GO:0004527; Molecular function: exonuclease activity.
GO:0004519; Molecular function: endonuclease activity.
GO:0004519; Molecular function: endonuclease activity.
Cross-references
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| Pfam | PF08722; Tn7_Tnp_TnsA_N; 0-1; |
Features
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| From: HDNUC_BPT4 (P15075) | ||||||||||||
| Key | From | To | Description | Tag | Condition | FTGroup | ||||||
| ACT_SITE | 29 | 29 | E | |||||||||
| ACT_SITE | 68 | 68 | D | |||||||||
| ACT_SITE | 84 | 84 | K | |||||||||
Additional information
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| Size range | 120-220 amino acids |
| Related rules | None |
| Fusion | None |