The name of this superfamily has been modified since the most recent official CATH+ release (v4_2_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 22523: Rho1 guanine nucleotide exchange factor 1

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
Rho guanyl-nucleotide exchange factor activity GO:0005089
Stimulates the exchange of guanyl nucleotides associated with a GTPase of the Rho family. 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 Q9UTR5 (/IGI) Q9Y7U6 (/IGI)
Protein binding GO:0005515
Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
2 Q9UTR5 (/IPI) Q9Y7U6 (/IPI)

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
Fungal-type cell wall biogenesis GO:0009272
A cellular process that results in the biosynthesis of constituent macromolecules, assembly, and arrangement of constituent parts of a fungal-type cell wall. The fungal-type cell wall contains beta-glucan and may contain chitin.
2 Q9UTR5 (/IGI) Q9Y7U6 (/IGI)
Actin cortical patch localization GO:0051666
Any process in which actin cortical patches are transported to, or maintained in, a specific location. An actin cortical patch is a discrete actin-containing structure found just beneath the plasma membrane in fungal cells.
2 Q9UTR5 (/IMP) Q9Y7U6 (/IMP)
Regulation of cell shape GO:0008360
Any process that modulates the surface configuration of a cell.
1 Q9Y7U6 (/IGI)
Ascospore wall assembly GO:0030476
The aggregation, arrangement and bonding together of a set of components to form an ascospore wall. During sporulation in Ascomycota, each ascospore nucleus becomes surrounded by a specialized spore wall, formed by deposition of spore wall components in the lumenal space between the outer and inner leaflets of the prospore membrane. An example of this process is found in Saccharomyces cerevisiae.
1 Q9UTR5 (/IMP)
Cellular response to drug GO:0035690
Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a drug stimulus. A drug is a substance used in the diagnosis, treatment or prevention of a disease.
1 Q4WUI2 (/IMP)
Asexual sporulation resulting in formation of a cellular spore GO:0043936
The formation of a cellular spore derived from the products of mitosis. A cellular spore is a cell form that can be used for dissemination, for survival of adverse conditions because of its heat and dessication resistance, and/or for reproduction.
1 Q4WUI2 (/IMP)
Positive regulation of bipolar cell growth GO:0051518
Any process that activates or increases the frequency, rate or extent of bipolar cell growth, polarized growth from both ends of a cell.
1 Q9Y7U6 (/IMP)
Regulation of ascospore wall beta-glucan biosynthetic process GO:0060622
Any process that modulates the rate, frequency or extent of ascospore wall beta-glucan biosynthetic process, the chemical reactions and pathways resulting in the formation of beta-glucans, compounds composed of glucose residues linked by beta-D-glucosidic bonds, found in the walls of ascospores.
1 Q9UTR5 (/IMP)
Cellular heat acclimation GO:0070370
Any process that increases heat tolerance of a cell in response to high temperatures.
1 Q4WUI2 (/IMP)
Regulation of cell wall (1->3)-beta-D-glucan biosynthetic process GO:0090334
Any process that modulates the rate, frequency, or extent of the chemical reactions and pathways resulting in the formation of (1->3)-beta-D-glucans, compounds composed of glucose residues linked by (1->3)-beta-D-glucosidic bonds, found in the walls of cells.
1 Q9Y7U6 (/IGI)

There are 7 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
Barrier septum GO:0000935
A septum which spans a cell and does not allow exchange of organelles or cytoplasm between compartments.
2 Q9UTR5 (/IDA) Q9Y7U6 (/IDA)
Cell cortex of cell tip GO:0051285
The region directly beneath the plasma membrane at the cell tip. The cell tip is the region at either end of the longest axis of a cylindrical or elongated cell.
2 Q9UTR5 (/IDA) Q9Y7U6 (/IDA)
Cell tip GO:0051286
The region at the end of the longest axis of a cylindrical or elongated cell.
2 Q9UTR5 (/IDA) Q9Y7U6 (/IDA)
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
1 Q9Y7U6 (/IDA)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
1 Q9UTR5 (/IDA)
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.
1 Q4WUI2 (/IDA)
Cell septum GO:0030428
A structure composed of peptidoglycan and often chitin in addition to other materials. It usually forms perpendicular to the long axis of a cell or hypha and grows centripetally from the cell wall to the center of the cell and often functions in the compartmentalization of a cell into two daughter cells.
1 Q9UTR5 (/IDA)