The name of this superfamily has been modified since the most recent official CATH+ release (v4_3_0). At the point of the last release, this superfamily was named:
"Vaccinia Virus protein VP39
".
FunFam 240: Type I restriction-modification system, M subunit
Please note: GO annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.
There are 1 GO terms relating to "molecular function"
The search results have been sorted with the annotations that are found most frequently at the top of the
list. The results can be filtered by typing text into the search box at the top of the table.
| GO Term | Annotations | Evidence |
|---|---|---|
|
DNA-methyltransferase activity GO:0009008
Catalysis of the transfer of a methyl group to a DNA molecule.
|
2 | Q888E0 (/ISS) Q888E0 (/ISS) |
There are 1 GO terms relating to "biological process"
The search results have been sorted with the annotations that are found most frequently at the top of the
list. The results can be filtered by typing text into the search box at the top of the table.
| GO Term | Annotations | Evidence |
|---|---|---|
|
DNA modification GO:0006304
The covalent alteration of one or more nucleotide sites in DNA, resulting in a change in its properties.
|
2 | Q888E0 (/ISS) Q888E0 (/ISS) |
There are 3 GO terms relating to "cellular component"
The search results have been sorted with the annotations that are found most frequently at the top of the
list. The results can be filtered by typing text into the search box at the top of the table.
| GO Term | Annotations | Evidence |
|---|---|---|
|
Cell wall GO:0005618
The rigid or semi-rigid envelope lying outside the cell membrane of plant, fungal, most prokaryotic cells and some protozoan parasites, maintaining their shape and protecting them from osmotic lysis. In plants it is made of cellulose and, often, lignin; in fungi it is composed largely of polysaccharides; in bacteria it is composed of peptidoglycan; in protozoan parasites such as Giardia species, it's made of carbohydrates and proteins.
|
3 | O33298 (/HDA) O33298 (/HDA) O33298 (/HDA) |
|
Plasma membrane GO:0005886
The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
|
3 | O33298 (/HDA) O33298 (/HDA) O33298 (/HDA) |
|
Type I site-specific deoxyribonuclease complex GO:0019812
A multisubunit complex composed of two copies of a restriction (R) subunit, two copies of a methylation (M) subunit, and one copy of a specificity (S) subunit. This complex recognizes specific short DNA sequences (through the S subunit), and binds to them. If the recognition site is hemimethylated, the complex acts as a methyltransferase which modifies the recognition site, using S-adenosylmethionine as the methyl donor. Only the M and S subunits are required for this reaction. If the complex binds to an unmethylated recognition site, then the complex translocates the DNA bidirectionally in an ATP-dependent manner. When the translocation is stalled by impact with another complex or unusual DNA structure, the enzyme functions as an endonuclease and cleavage of the DNA will occur, hundreds or thousands of base pairs away from the recognition site. These DNA restriction systems are used by bacteria to defend against phage and other foreign DNA that may enter a cell.
|
2 | Q888E0 (/ISS) Q888E0 (/ISS) |
