The name of this superfamily has been modified since the most recent official CATH+ release (v4_4_0). At the point of the last release, this superfamily was named:

"
Homing endonucleases
".

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
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FunFam 5: Pentatricopeptide repeat-containing protein At2g15...

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 2 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
Nuclease activity GO:0004518
Catalysis of the hydrolysis of ester linkages within nucleic acids.
1 P03873 (/IDA)
Endonuclease activity GO:0004519
Catalysis of the hydrolysis of ester linkages within nucleic acids by creating internal breaks.
1 Q9ZZX1 (/IMP)

There are 5 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
Group II intron splicing GO:0000373
The splicing of Group II introns. This occurs by a ribozymic mechanism where the intron sequence forms a distinct 3D structure, characteristic of Group II introns and containing splice site consensus sequences, that is involved in catalyzing the splicing reactions, though protein factors are also required in vivo. Splicing occurs by a series of two transesterification reactions (mechanistically similar to those for splicing of nuclear mRNAs) initiated by a bulged adenosine residue within the intron sequence as the initiating nucleophile. The intron is excised as a lariat.
2 Q6ZHJ5 (/IMP) Q9XIL5 (/IMP)
MRNA cis splicing, via spliceosome GO:0045292
The joining together, after removal of an intervening sequence composed of one or more introns, of two segments of the same RNA molecule via spliceosomal catalysis to produce an mRNA composed only of exon sequences that all came from the same primary transcript.
2 Q6ZHJ5 (/IMP) Q9XIL5 (/IMP)
Photosystem I assembly GO:0048564
The aggregation, arrangement and bonding together of a set of components to form a photosystem I complex on the thylakoid membrane.
2 Q6ZHJ5 (/IMP) Q9XIL5 (/IMP)
Movement of group I intron GO:0006316
Lateral transfer of a group I intron to a homologous allele that lacks the intron, mediated by a site-specific endonuclease encoded within the mobile intron; group I introns are self-splicing introns that use guanosine as a cofactor in the splicing reaction.
1 Q9ZZX1 (/IMP)
RNA splicing GO:0008380
The process of removing sections of the primary RNA transcript to remove sequences not present in the mature form of the RNA and joining the remaining sections to form the mature form of the RNA.
1 P03873 (/IDA)

There are 2 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
Mitochondrion GO:0005739
A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.
2 P03873 (/TAS) Q9ZZX1 (/TAS)
Chloroplast GO:0009507
A chlorophyll-containing plastid with thylakoids organized into grana and frets, or stroma thylakoids, and embedded in a stroma.
1 Q9XIL5 (/ISM)
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