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CATH Superfamily 3.40.50.1580

Nucleoside phosphorylase domain

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:

"
Nucleoside phosphorylase domain
".

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 11: Purine nucleoside phosphorylase

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 4 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
Purine-nucleoside phosphorylase activity GO:0004731
Catalysis of the reaction: purine nucleoside + phosphate = purine + alpha-D-ribose 1-phosphate.
 50 P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA)
(40 more)
Identical protein binding GO:0042802
Interacting selectively and non-covalently with an identical protein or proteins.
 50 P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA)
(40 more)
Inosine nucleosidase activity GO:0047724
Catalysis of the reaction: inosine + H2O = D-ribose + hypoxanthine.
 50 P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA)
(40 more)
Guanosine phosphorylase activity GO:0047975
Catalysis of the reaction: guanosine + phosphate = guanine + D-ribose 1-phosphate.
 50 P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA)
(40 more)

There are 10 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
Inosine catabolic process GO:0006148
The chemical reactions and pathways resulting in the breakdown of inosine, hypoxanthine riboside, a nucleoside found free but not in combination in nucleic acids except in the anticodons of some tRNAs.
 50 P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA)
(40 more)
Deoxyinosine catabolic process GO:0006149
The chemical reactions and pathways resulting in the breakdown of deoxyinosine, hypoxanthine deoxyriboside.
 50 P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA)
(40 more)
Purine nucleoside catabolic process GO:0006152
The chemical reactions and pathways resulting in the breakdown of purine nucleoside, one of a family of organic molecules consisting of a purine base covalently bonded to a sugar ribose (a ribonucleoside) or deoxyribose (a deoxyribonucleoside).
 50 P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA)
(40 more)
Purine nucleoside catabolic process GO:0006152
The chemical reactions and pathways resulting in the breakdown of purine nucleoside, one of a family of organic molecules consisting of a purine base covalently bonded to a sugar ribose (a ribonucleoside) or deoxyribose (a deoxyribonucleoside).
 50 P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP)
(40 more)
Deoxyguanosine catabolic process GO:0006161
The chemical reactions and pathways resulting in the breakdown of deoxyguanosine, a nucleoside consisting of the base guanine and the sugar deoxyribose.
 50 P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA)
(40 more)
Nucleobase-containing small molecule interconversion GO:0015949
The chemical reactions and pathways by which a nucleobase, nucleoside or nucleotide small molecule is synthesized from another nucleobase, nucleoside or nucleotide small molecule.
 50 P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP)
(40 more)
Protein hexamerization GO:0034214
The formation of a protein hexamer, a macromolecular structure consisting of six noncovalently associated identical or nonidentical subunits.
 50 P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA)
(40 more)
Guanosine catabolic process GO:0046115
The chemical reactions and pathways resulting in the breakdown of guanine, guanine riboside, a nucleoside with a wide species distribution.
 50 P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA)
(40 more)
Nucleobase-containing small molecule metabolic process GO:0055086
The cellular chemical reactions and pathways involving a nucleobase-containing small molecule: a nucleobase, a nucleoside, or a nucleotide.
 50 P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP)
(40 more)
Xanthosine catabolic process GO:1903228
The chemical reactions and pathways resulting in the breakdown of xanthosine.
 50 P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP) P45563 (/IMP)
(40 more)

There are 1 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
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
 50 P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA) P45563 (/IDA)
(40 more)