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:

"
Ribonuclease Inhibitor
".

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 6: Tropomodulin 2

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 10 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
Tropomyosin binding GO:0005523
Interacting selectively and non-covalently with tropomyosin, a protein associated with actin filaments both in cytoplasm and, in association with troponin, in the thin filament of striated muscle.
16 Q9NYL9 (/TAS) Q9NZQ9 (/TAS) Q9NZQ9 (/TAS) Q9NZQ9 (/TAS) Q9NZQ9 (/TAS) Q9NZQ9 (/TAS) Q9NZQ9 (/TAS) Q9NZQ9 (/TAS) Q9NZQ9 (/TAS) Q9NZQ9 (/TAS)
(6 more)
Tropomyosin binding GO:0005523
Interacting selectively and non-covalently with tropomyosin, a protein associated with actin filaments both in cytoplasm and, in association with troponin, in the thin filament of striated muscle.
6 P49813 (/IDA) P70566 (/IDA) P70567 (/IDA) Q9JHJ0 (/IDA) Q9JLH8 (/IDA) Q9JLH8 (/IDA)
Actin binding GO:0003779
Interacting selectively and non-covalently with monomeric or multimeric forms of actin, including actin filaments.
4 A0JNC0 (/ISS) A0JNC0 (/ISS) P49813 (/ISS) P70567 (/ISS)
Actin filament binding GO:0051015
Interacting selectively and non-covalently with an actin filament, also known as F-actin, a helical filamentous polymer of globular G-actin subunits.
3 H9KZU7 (/IDA) Q9DEA4 (/IDA) Q9PUQ7 (/IDA)
Actin binding GO:0003779
Interacting selectively and non-covalently with monomeric or multimeric forms of actin, including actin filaments.
2 P28289 (/IDA) P70566 (/IDA)
Actin binding GO:0003779
Interacting selectively and non-covalently with monomeric or multimeric forms of actin, including actin filaments.
2 P49813 (/ISO) Q9JKK7 (/ISO)
Tropomyosin binding GO:0005523
Interacting selectively and non-covalently with tropomyosin, a protein associated with actin filaments both in cytoplasm and, in association with troponin, in the thin filament of striated muscle.
2 P49813 (/ISO) Q9JKK7 (/ISO)
Tropomyosin binding GO:0005523
Interacting selectively and non-covalently with tropomyosin, a protein associated with actin filaments both in cytoplasm and, in association with troponin, in the thin filament of striated muscle.
1 Q9DEA6 (/IPI)
Microtubule minus-end binding GO:0051011
Interacting selectively and non-covalently with the minus end of a microtubule.
1 Q9JHJ0 (/ISO)
Cadherin binding involved in cell-cell adhesion GO:0098641
Any cadherin binding that occurs as part of the process of cell-cell adhesion.
1 Q9NYL9 (/HDA)

There are 18 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
Muscle contraction GO:0006936
A process in which force is generated within muscle tissue, resulting in a change in muscle geometry. Force generation involves a chemo-mechanical energy conversion step that is carried out by the actin/myosin complex activity, which generates force through ATP hydrolysis.
13 Q9NZQ9 (/TAS) Q9NZQ9 (/TAS) Q9NZQ9 (/TAS) Q9NZQ9 (/TAS) Q9NZQ9 (/TAS) Q9NZQ9 (/TAS) Q9NZQ9 (/TAS) Q9NZQ9 (/TAS) Q9NZQ9 (/TAS) Q9NZQ9 (/TAS)
(3 more)
Pointed-end actin filament capping GO:0051694
The binding of a protein or protein complex to the pointed (or minus) end of an actin filament, thus preventing the addition, exchange or removal of further actin subunits.
3 H9KZU7 (/IDA) Q9DEA4 (/IDA) Q9PUQ7 (/IDA)
Nervous system development GO:0007399
The process whose specific outcome is the progression of nervous tissue over time, from its formation to its mature state.
2 Q9NZR1 (/TAS) Q9NZR1 (/TAS)
Muscle contraction GO:0006936
A process in which force is generated within muscle tissue, resulting in a change in muscle geometry. Force generation involves a chemo-mechanical energy conversion step that is carried out by the actin/myosin complex activity, which generates force through ATP hydrolysis.
1 P49813 (/IMP)
Actin filament organization GO:0007015
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures comprising actin filaments. Includes processes that control the spatial distribution of actin filaments, such as organizing filaments into meshworks, bundles, or other structures, as by cross-linking.
1 P70566 (/TAS)
Neuron-neuron synaptic transmission GO:0007270
The process of synaptic transmission from a neuron to another neuron across a synapse.
1 Q9JKK7 (/IMP)
Learning or memory GO:0007611
The acquisition and processing of information and/or the storage and retrieval of this information over time.
1 Q9JKK7 (/IMP)
Adult locomotory behavior GO:0008344
Locomotory behavior in a fully developed and mature organism.
1 P49813 (/IMP)
Skeletal myofibril assembly GO:0014866
The process whose specific outcome is the progression of the skeletal myofibril over time, from its formation to the mature structure. A skeletal myofibril is a myofibril specific to skeletal muscle cells.
1 Q9PUQ6 (/IMP)
Actin cytoskeleton organization GO:0030036
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures comprising actin filaments and their associated proteins.
1 Q9JHJ0 (/IMP)
Muscle filament sliding GO:0030049
The sliding of actin thin filaments and myosin thick filaments past each other in muscle contraction. This involves a process of interaction of myosin located on a thick filament with actin located on a thin filament. During this process ATP is split and forces are generated.
1 P28289 (/TAS)
Myofibril assembly GO:0030239
Formation of myofibrils, the repeating units of striated muscle.
1 P49813 (/IMP)
Positive regulation of G protein-coupled receptor signaling pathway GO:0045745
Any process that activates or increases the frequency, rate or extent of G protein-coupled receptor signaling pathway activity.
1 Q9JKK7 (/IMP)
Erythrocyte development GO:0048821
The process whose specific outcome is the progression of an erythrocyte over time, from its formation to the mature structure.
1 Q9JHJ0 (/IMP)
Negative regulation of cellular component movement GO:0051271
Any process that stops, prevents, or reduces the frequency, rate or extent of the movement of a cellular component.
1 Q9JHJ0 (/ISO)
Pointed-end actin filament capping GO:0051694
The binding of a protein or protein complex to the pointed (or minus) end of an actin filament, thus preventing the addition, exchange or removal of further actin subunits.
1 Q9JHJ0 (/ISO)
Lens fiber cell development GO:0070307
The process whose specific outcome is the progression of a lens fiber cell over time, from its formation to the mature structure. Cell development does not include the steps involved in committing a cell to a lens fiber cell fate. A lens fiber cell is any of the elongated, tightly packed cells that make up the bulk of the mature lens in a camera-type eye.
1 P49813 (/IGI)
Positive regulation of mitotic cell cycle phase transition GO:1901992
Any process that activates or increases the frequency, rate or extent of mitotic cell cycle phase transition.
1 Q9JHJ0 (/IMP)

There are 32 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
Striated muscle thin filament GO:0005865
Filaments formed of actin and associated proteins; attached to Z discs at either end of sarcomeres in myofibrils.
20 H9KZU7 (/IDA) P28289 (/IDA) Q9DEA4 (/IDA) Q9JHJ0 (/IDA) Q9JLH8 (/IDA) Q9JLH8 (/IDA) Q9NZQ9 (/IDA) Q9NZQ9 (/IDA) Q9NZQ9 (/IDA) Q9NZQ9 (/IDA)
(10 more)
Sarcomere GO:0030017
The repeating unit of a myofibril in a muscle cell, composed of an array of overlapping thick and thin filaments between two adjacent Z discs.
6 F1NY71 (/IDA) G1T676 (/IDA) P28289 (/IDA) P49813 (/IDA) Q91006 (/IDA) Q9DEA6 (/IDA)
Actin filament GO:0005884
A filamentous structure formed of a two-stranded helical polymer of the protein actin and associated proteins. Actin filaments are a major component of the contractile apparatus of skeletal muscle and the microfilaments of the cytoskeleton of eukaryotic cells. The filaments, comprising polymerized globular actin molecules, appear as flexible structures with a diameter of 5-9 nm. They are organized into a variety of linear bundles, two-dimensional networks, and three dimensional gels. In the cytoskeleton they are most highly concentrated in the cortex of the cell just beneath the plasma membrane.
4 A0JNC0 (/ISS) A0JNC0 (/ISS) P49813 (/ISS) P70567 (/ISS)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
4 H9KZU7 (/IDA) P49813 (/IDA) Q9DEA4 (/IDA) Q9PUQ7 (/IDA)
Myofibril GO:0030016
The contractile element of skeletal and cardiac muscle; a long, highly organized bundle of actin, myosin, and other proteins that contracts by a sliding filament mechanism.
4 A0JNC0 (/ISS) A0JNC0 (/ISS) P49813 (/ISS) P70567 (/ISS)
Sarcomere GO:0030017
The repeating unit of a myofibril in a muscle cell, composed of an array of overlapping thick and thin filaments between two adjacent Z discs.
4 A0JNC0 (/ISS) A0JNC0 (/ISS) P49813 (/ISS) P70567 (/ISS)
Cell GO:0005623
The basic structural and functional unit of all organisms. Includes the plasma membrane and any external encapsulating structures such as the cell wall and cell envelope.
3 H9KZU7 (/IDA) Q9DEA4 (/IDA) Q9PUQ7 (/IDA)
Striated muscle thin filament GO:0005865
Filaments formed of actin and associated proteins; attached to Z discs at either end of sarcomeres in myofibrils.
3 P49813 (/ISO) Q9JLH8 (/ISO) Q9JLH8 (/ISO)
Sarcolemma GO:0042383
The outer membrane of a muscle cell, consisting of the plasma membrane, a covering basement membrane (about 100 nm thick and sometimes common to more than one fiber), and the associated loose network of collagen fibers.
3 F1NY71 (/IDA) Q91006 (/IDA) Q9DEA6 (/IDA)
Costamere GO:0043034
Regular periodic sub membranous arrays of vinculin in skeletal and cardiac muscle cells, these arrays link Z-discs to the sarcolemma and are associated with links to extracellular matrix.
3 F1NY71 (/IDA) Q91006 (/IDA) Q9DEA6 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
2 P70567 (/IDA) Q91006 (/IDA)
Myofibril GO:0030016
The contractile element of skeletal and cardiac muscle; a long, highly organized bundle of actin, myosin, and other proteins that contracts by a sliding filament mechanism.
2 P28289 (/IDA) P49813 (/IDA)
Ruffle GO:0001726
Projection at the leading edge of a crawling cell; the protrusions are supported by a microfilament meshwork.
1 Q9JHJ0 (/ISO)
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 P70567 (/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 P49813 (/ISO)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 P49813 (/ISO)
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 P28289 (/TAS)
Cytoskeleton GO:0005856
Any of the various filamentous elements that form the internal framework of cells, and typically remain after treatment of the cells with mild detergent to remove membrane constituents and soluble components of the cytoplasm. The term embraces intermediate filaments, microfilaments, microtubules, the microtrabecular lattice, and other structures characterized by a polymeric filamentous nature and long-range order within the cell. The various elements of the cytoskeleton not only serve in the maintenance of cellular shape but also have roles in other cellular functions, including cellular movement, cell division, endocytosis, and movement of organelles.
1 P49813 (/TAS)
Actin filament GO:0005884
A filamentous structure formed of a two-stranded helical polymer of the protein actin and associated proteins. Actin filaments are a major component of the contractile apparatus of skeletal muscle and the microfilaments of the cytoskeleton of eukaryotic cells. The filaments, comprising polymerized globular actin molecules, appear as flexible structures with a diameter of 5-9 nm. They are organized into a variety of linear bundles, two-dimensional networks, and three dimensional gels. In the cytoskeleton they are most highly concentrated in the cortex of the cell just beneath the plasma membrane.
1 P28289 (/IDA)
Actin filament GO:0005884
A filamentous structure formed of a two-stranded helical polymer of the protein actin and associated proteins. Actin filaments are a major component of the contractile apparatus of skeletal muscle and the microfilaments of the cytoskeleton of eukaryotic cells. The filaments, comprising polymerized globular actin molecules, appear as flexible structures with a diameter of 5-9 nm. They are organized into a variety of linear bundles, two-dimensional networks, and three dimensional gels. In the cytoskeleton they are most highly concentrated in the cortex of the cell just beneath the plasma membrane.
1 P49813 (/ISO)
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 Q91006 (/IDA)
Cell-cell adherens junction GO:0005913
An adherens junction which connects a cell to another cell.
1 Q9NYL9 (/HDA)
Myofibril GO:0030016
The contractile element of skeletal and cardiac muscle; a long, highly organized bundle of actin, myosin, and other proteins that contracts by a sliding filament mechanism.
1 P49813 (/ISO)
Sarcomere GO:0030017
The repeating unit of a myofibril in a muscle cell, composed of an array of overlapping thick and thin filaments between two adjacent Z discs.
1 P49813 (/ISO)
Lamellipodium GO:0030027
A thin sheetlike process extended by the leading edge of a migrating cell or extending cell process; contains a dense meshwork of actin filaments.
1 Q9JHJ0 (/ISO)
Growth cone GO:0030426
The migrating motile tip of a growing neuron projection, where actin accumulates, and the actin cytoskeleton is the most dynamic.
1 P70566 (/IDA)
Growth cone GO:0030426
The migrating motile tip of a growing neuron projection, where actin accumulates, and the actin cytoskeleton is the most dynamic.
1 Q9JKK7 (/ISO)
Cortical cytoskeleton GO:0030863
The portion of the cytoskeleton that lies just beneath the plasma membrane.
1 P49813 (/IDA)
Filamentous actin GO:0031941
A two-stranded helical polymer of the protein actin.
1 Q9JHJ0 (/ISO)
Neuron projection GO:0043005
A prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
1 P70566 (/IDA)
Neuron projection GO:0043005
A prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
1 Q9JKK7 (/ISO)
Skeletal muscle myofibril GO:0098723
A myofibril of a skeletal muscle fiber.
1 G1T676 (/IDA)
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