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:

"
ATP-grasp fold, B 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 3: Inositol hexakisphosphate and diphosphoinositol-pe...

There are 2 EC terms in this cluster

Please note: EC 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.

Note: 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.

EC Term Annotations Evidence
Diphosphoinositol-pentakisphosphate kinase. [EC: 2.7.4.24]
(1) ATP + 1D-myo-inositol 5-diphosphate 1,2,3,4,6-pentakisphosphate = ADP + 1D-myo-inositol 1,5-bis(diphosphate) 2,3,4,6-tetrakisphosphate. (2) ATP + 1D-myo-inositol hexakisphosphate = ADP + 1D-myo-inositol 1-diphosphate 2,3,4,5,6-pentakisphosphate.
  • This enzyme is activated by osmotic shock.
  • Ins(1,3,4,5,6)P(5), 1D-myo-inositol diphosphate tetrakisphosphate and 1D-myo-inositol bisdiphosphate triphosphate are not substrates.
  • Formerly EC 2.7.1.155.
11 A2ARP1 A7Z050 O43314 P0C644 P91309 Q5RDF1 Q5REW0 Q5XHF8 Q6PFW1 Q6ZQB6
(1 more...)
Inositol-hexakisphosphate kinase. [EC: 2.7.4.21]
(1) ATP + 1D-myo-inositol hexakisphosphate = ADP + 1D-myo-inositol 5-diphosphate 1,2,3,4,6-pentakisphosphate. (2) ATP + 1D-myo-inositol 1-diphosphate 2,3,4,5,6-pentakisphosphate = ADP + 1D-myo-inositol 1,5-bis(diphosphate) 2,3,4,6-tetrakisphosphate.
  • Three mammalian isoforms are known to exist.
  • Formerly EC 2.7.1.152.
11 A2ARP1 A7Z050 O43314 P0C644 P91309 Q5RDF1 Q5REW0 Q5XHF8 Q6PFW1 Q6ZQB6
(1 more...)