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:

"
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.
« Back to all FunFams

FunFam 151: Rho guanine nucleotide exchange factor 3

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
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).
10 H0WF77 (/IPI) Q1LXH8 (/IPI) Q5RHT8 (/IPI) Q5RHT9 (/IPI) Q5RKM4 (/IPI) Q7Z628 (/IPI) Q7Z628 (/IPI) Q9NR81 (/IPI) Q9NR81 (/IPI) Q9Z206 (/IPI)
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.
7 H0WF77 (/TAS) Q1LXH8 (/TAS) Q5RHT8 (/TAS) Q5RHT9 (/TAS) Q5RKM4 (/TAS) Q7Z628 (/TAS) Q7Z628 (/TAS)
Protein kinase activator activity GO:0030295
Binds to and increases the activity of a protein kinase, an enzyme which phosphorylates a protein.
5 H0WF77 (/TAS) Q1LXH8 (/TAS) Q5RHT8 (/TAS) Q5RHT9 (/TAS) Q5RKM4 (/TAS)
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 Q9NR81 (/TAS) Q9NR81 (/TAS)

There are 25 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
Dorsal/ventral axis specification GO:0009950
The establishment, maintenance and elaboration of the dorsal/ventral axis. The dorsal/ventral axis is defined by a line that runs orthogonal to both the anterior/posterior and left/right axes. The dorsal end is defined by the upper or back side of an organism. The ventral end is defined by the lower or front side of an organism.
5 H0WF77 (/IMP) Q1LXH8 (/IMP) Q5RHT8 (/IMP) Q5RHT9 (/IMP) Q5RKM4 (/IMP)
Mesendoderm development GO:0048382
The process whose specific outcome is the progression of the mesendoderm over time, from its formation to the mature structure. In animal embryos, mesendoderm development gives rise to both mesoderm and endoderm tissues.
5 H0WF77 (/IMP) Q1LXH8 (/IMP) Q5RHT8 (/IMP) Q5RHT9 (/IMP) Q5RKM4 (/IMP)
Canonical Wnt signaling pathway GO:0060070
The series of molecular signals initiated by binding of a Wnt protein to a frizzled family receptor on the surface of the target cell, followed by propagation of the signal via beta-catenin, and ending with a change in transcription of target genes. In this pathway, the activated receptor signals via downstream effectors that result in the inhibition of beta-catenin phosphorylation, thereby preventing degradation of beta-catenin. Stabilized beta-catenin can then accumulate and travel to the nucleus to trigger changes in transcription of target genes.
5 H0WF77 (/IMP) Q1LXH8 (/IMP) Q5RHT8 (/IMP) Q5RHT9 (/IMP) Q5RKM4 (/IMP)
Regulation of nodal signaling pathway GO:1900107
Any process that modulates the frequency, rate or extent of nodal signaling pathway.
5 H0WF77 (/IMP) Q1LXH8 (/IMP) Q5RHT8 (/IMP) Q5RHT9 (/IMP) Q5RKM4 (/IMP)
G protein-coupled receptor signaling pathway GO:0007186
A series of molecular signals that proceeds with an activated receptor promoting the exchange of GDP for GTP on the alpha-subunit of an associated heterotrimeric G-protein complex. The GTP-bound activated alpha-G-protein then dissociates from the beta- and gamma-subunits to further transmit the signal within the cell. The pathway begins with receptor-ligand interaction, or for basal GPCR signaling the pathway begins with the receptor activating its G protein in the absence of an agonist, and ends with regulation of a downstream cellular process, e.g. transcription. The pathway can start from the plasma membrane, Golgi or nuclear membrane (PMID:24568158 and PMID:16902576).
4 Q7Z628 (/TAS) Q7Z628 (/TAS) Q9NR81 (/TAS) Q9NR81 (/TAS)
Positive regulation of apoptotic process GO:0043065
Any process that activates or increases the frequency, rate or extent of cell death by apoptotic process.
4 Q7Z628 (/TAS) Q7Z628 (/TAS) Q9NR81 (/TAS) Q9NR81 (/TAS)
Regulation of small GTPase mediated signal transduction GO:0051056
Any process that modulates the frequency, rate or extent of small GTPase mediated signal transduction.
4 Q7Z628 (/TAS) Q7Z628 (/TAS) Q9NR81 (/TAS) Q9NR81 (/TAS)
Regulation of cell growth GO:0001558
Any process that modulates the frequency, rate, extent or direction of cell growth.
2 Q7Z628 (/NAS) Q7Z628 (/NAS)
Signal transduction GO:0007165
The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
2 Q7Z628 (/TAS) Q7Z628 (/TAS)
Rho protein signal transduction GO:0007266
A series of molecular signals within the cell that are mediated by a member of the Rho family of proteins switching to a GTP-bound active state.
2 Q9NR81 (/TAS) Q9NR81 (/TAS)
Positive regulation of apoptotic process GO:0043065
Any process that activates or increases the frequency, rate or extent of cell death by apoptotic process.
2 Q7Z628 (/IDA) Q7Z628 (/IDA)
Positive regulation of GTPase activity GO:0043547
Any process that activates or increases the activity of a GTPase.
2 Q7Z628 (/IMP) Q7Z628 (/IMP)
Cellular response to hydrogen peroxide GO:0070301
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 hydrogen peroxide (H2O2) stimulus.
2 Q7Z628 (/IDA) Q7Z628 (/IDA)
Cellular response to ionizing radiation GO:0071479
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 ionizing radiation stimulus. Ionizing radiation is radiation with sufficient energy to remove electrons from atoms and may arise from spontaneous decay of unstable isotopes, resulting in alpha and beta particles and gamma rays. Ionizing radiation also includes X-rays.
2 Q7Z628 (/IDA) Q7Z628 (/IDA)
Hemopoiesis GO:0030097
The process whose specific outcome is the progression of the myeloid and lymphoid derived organ/tissue systems of the blood and other parts of the body over time, from formation to the mature structure. The site of hemopoiesis is variable during development, but occurs primarily in bone marrow or kidney in many adult vertebrates.
1 Q1MT42 (/IMP)
Positive regulation of apoptotic process GO:0043065
Any process that activates or increases the frequency, rate or extent of cell death by apoptotic process.
1 Q9Z206 (/ISO)
Positive regulation of apoptotic process GO:0043065
Any process that activates or increases the frequency, rate or extent of cell death by apoptotic process.
1 Q9Z206 (/ISS)
Positive regulation of GTPase activity GO:0043547
Any process that activates or increases the activity of a GTPase.
1 Q9Z206 (/ISO)
Positive regulation of GTPase activity GO:0043547
Any process that activates or increases the activity of a GTPase.
1 Q9Z206 (/ISS)
Myoblast migration GO:0051451
The orderly movement of a myoblast from one site to another, often during the development of a multicellular organism. A myoblast is a cell type that, by fusion with other myoblasts, gives rise to the myotubes that eventually develop into skeletal muscle fibers.
1 Q9Z206 (/IGI)
Myeloid cell development GO:0061515
The process whose specific outcome is the progression of a myeloid cell over time, from its formation to the mature structure.
1 Q1MT42 (/IMP)
Cellular response to hydrogen peroxide GO:0070301
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 hydrogen peroxide (H2O2) stimulus.
1 Q9Z206 (/ISO)
Cellular response to hydrogen peroxide GO:0070301
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 hydrogen peroxide (H2O2) stimulus.
1 Q9Z206 (/ISS)
Cellular response to ionizing radiation GO:0071479
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 ionizing radiation stimulus. Ionizing radiation is radiation with sufficient energy to remove electrons from atoms and may arise from spontaneous decay of unstable isotopes, resulting in alpha and beta particles and gamma rays. Ionizing radiation also includes X-rays.
1 Q9Z206 (/ISO)
Cellular response to ionizing radiation GO:0071479
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 ionizing radiation stimulus. Ionizing radiation is radiation with sufficient energy to remove electrons from atoms and may arise from spontaneous decay of unstable isotopes, resulting in alpha and beta particles and gamma rays. Ionizing radiation also includes X-rays.
1 Q9Z206 (/ISS)

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
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
4 Q7Z628 (/TAS) Q7Z628 (/TAS) Q9NR81 (/TAS) Q9NR81 (/TAS)
Intracellular GO:0005622
The living contents of a cell; the matter contained within (but not including) the plasma membrane, usually taken to exclude large vacuoles and masses of secretory or ingested material. In eukaryotes it includes the nucleus and cytoplasm.
2 Q9NR81 (/IDA) Q9NR81 (/IDA)
CATH-Gene3D is a Global Biodata Core Resource Learn more...