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.
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FunFam 309: Uncharacterized protein, isoform B

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 3 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
ARF guanyl-nucleotide exchange factor activity GO:0005086
Stimulates the exchange of guanyl nucleotides associated with the GTPase ARF. 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.
3 Q0E8N2 (/ISS) Q9V9Q6 (/ISS) Q9V9Q6 (/ISS)
Phosphatidylinositol-3,4,5-trisphosphate binding GO:0005547
Interacting selectively and non-covalently with phosphatidylinositol-3,4,5-trisphosphate, a derivative of phosphatidylinositol in which the inositol ring is phosphorylated at the 3', 4' and 5' positions.
3 Q0E8N2 (/IDA) Q9V9Q6 (/IDA) Q9V9Q6 (/IDA)
Protein homodimerization activity GO:0042803
Interacting selectively and non-covalently with an identical protein to form a homodimer.
3 Q0E8N2 (/IPI) Q9V9Q6 (/IPI) Q9V9Q6 (/IPI)

There are 13 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
Embryonic development via the syncytial blastoderm GO:0001700
The process whose specific outcome is the progression of the embryo over time, from zygote formation through syncytial blastoderm to the hatching of the first instar larva. An example of this process is found in Drosophila melanogaster.
3 Q0E8N2 (/IMP) Q9V9Q6 (/IMP) Q9V9Q6 (/IMP)
Regulation of endocytosis GO:0030100
Any process that modulates the frequency, rate or extent of endocytosis.
3 Q0E8N2 (/IMP) Q9V9Q6 (/IMP) Q9V9Q6 (/IMP)
Positive regulation of ARF protein signal transduction GO:0032014
Any process that activates or increases the frequency, rate or extent of ARF protein signal transduction.
3 Q0E8N2 (/ISS) Q9V9Q6 (/ISS) Q9V9Q6 (/ISS)
Regulation of actin cytoskeleton organization GO:0032956
Any process that modulates the frequency, rate or extent of the formation, arrangement of constituent parts, or disassembly of cytoskeletal structures comprising actin filaments and their associated proteins.
3 Q0E8N2 (/IMP) Q9V9Q6 (/IMP) Q9V9Q6 (/IMP)
Dorsal closure GO:0007391
The process during Drosophila embryogenesis whereby the ectodermal cells of the lateral epithelium stretch in a coordinated fashion to internalize the amnioserosa cells and close the embryo dorsally.
1 Q0E8N2 (/IMP)
Imaginal disc-derived wing vein specification GO:0007474
The regionalization process in which the area of a imaginal disc-derived wing that will form a wing vein is specified.
1 Q0E8N2 (/IMP)
Positive regulation of phosphatidylinositol 3-kinase signaling GO:0014068
Any process that activates or increases the frequency, rate or extent of signal transduction mediated by the phosphatidylinositol 3-kinase cascade.
1 Q0E8N2 (/IMP)
Positive regulation of multicellular organism growth GO:0040018
Any process that activates or increases the frequency, rate or extent of growth of an organism to reach its usual body size.
1 Q0E8N2 (/IMP)
Positive regulation of epidermal growth factor receptor signaling pathway GO:0045742
Any process that activates or increases the frequency, rate or extent of epidermal growth factor receptor signaling pathway activity.
1 Q0E8N2 (/IMP)
Positive regulation of insulin receptor signaling pathway GO:0046628
Any process that increases the frequency, rate or extent of insulin receptor signaling.
1 Q0E8N2 (/IMP)
Positive regulation of ERK1 and ERK2 cascade GO:0070374
Any process that activates or increases the frequency, rate or extent of signal transduction mediated by the ERK1 and ERK2 cascade.
1 Q0E8N2 (/IMP)
Regulation of actomyosin structure organization GO:0110020
Any process that modulates the frequency, rate or extent of the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures containing both actin and myosin or paramyosin.
1 Q0E8N2 (/IMP)
Positive regulation of cAMP-dependent protein kinase activity GO:2000481
Any process that activates or increases the frequency, rate or extent of cAMP-dependent protein kinase activity.
1 Q0E8N2 (/IMP)

There are 6 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
Golgi membrane GO:0000139
The lipid bilayer surrounding any of the compartments of the Golgi apparatus.
3 Q0E8N2 (/ISS) Q9V9Q6 (/ISS) Q9V9Q6 (/ISS)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
3 Q0E8N2 (/HDA) Q9V9Q6 (/HDA) Q9V9Q6 (/HDA)
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.
3 Q0E8N2 (/IDA) Q9V9Q6 (/IDA) Q9V9Q6 (/IDA)
Cleavage furrow GO:0032154
The cleavage furrow is a plasma membrane invagination at the cell division site. The cleavage furrow begins as a shallow groove and eventually deepens to divide the cytoplasm.
3 Q0E8N2 (/IDA) Q9V9Q6 (/IDA) Q9V9Q6 (/IDA)
Cell cortex GO:0005938
The region of a cell that lies just beneath the plasma membrane and often, but not always, contains a network of actin filaments and associated proteins.
1 Q0E8N2 (/IDA)
Cell leading edge cell cortex GO:1904269
The cell cortex of the leading edge of a cell.
1 Q0E8N2 (/IDA)
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