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:

"
Pleckstrin-homology domain (PH domain)/Phosphotyrosine-binding domain (PTB)
".

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 647: Putative GDP-GTP exchange factor

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
Guanyl-nucleotide exchange factor activity GO:0005085
Stimulates the exchange of guanyl nucleotides associated with a GTPase. Under normal cellular physiological conditions, the concentration of GTP is higher than that of GDP, favoring the replacement of GDP by GTP in association with the GTPase.
2 G5ECM5 (/ISS) G5ED03 (/ISS)

There are 4 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
Cell morphogenesis GO:0000902
The developmental process in which the size or shape of a cell is generated and organized.
2 G5ECM5 (/IMP) G5ED03 (/IMP)
Epithelial cell development GO:0002064
The process whose specific outcome is the progression of an epithelial cell over time, from its formation to the mature structure. An epithelial cell is a cell usually found in a two-dimensional sheet with a free surface.
2 G5ECM5 (/IMP) G5ED03 (/IMP)
Regulation of tube size GO:0035150
Ensuring that a tube is of the correct length and diameter. Tube size must be maintained not only during tube formation, but also throughout development and in some physiological processes.
2 G5ECM5 (/IMP) G5ED03 (/IMP)
Positive regulation of actin filament binding GO:1904531
Any process that activates or increases the frequency, rate or extent of actin filament binding.
1 G5ECM5 (/IMP)

There are 5 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
Actin cytoskeleton GO:0015629
The part of the cytoskeleton (the internal framework of a cell) composed of actin and associated proteins. Includes actin cytoskeleton-associated complexes.
2 G5ECM5 (/IDA) G5ED03 (/IDA)
Cell projection GO:0042995
A prolongation or process extending from a cell, e.g. a flagellum or axon.
2 G5ECM5 (/IDA) G5ED03 (/IDA)
Cell body GO:0044297
The portion of a cell bearing surface projections such as axons, dendrites, cilia, or flagella that includes the nucleus, but excludes all cell projections.
2 G5ECM5 (/IDA) G5ED03 (/IDA)
Apical part of cell GO:0045177
The region of a polarized cell that forms a tip or is distal to a base. For example, in a polarized epithelial cell, the apical region has an exposed surface and lies opposite to the basal lamina that separates the epithelium from other tissue.
2 G5ECM5 (/IDA) G5ED03 (/IDA)
Apical cortex GO:0045179
The region that lies just beneath the plasma membrane on the apical edge of a cell.
2 G5ECM5 (/IDA) G5ED03 (/IDA)