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:

"
H-NOX domain
".

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 1: Guanylate cyclase soluble subunit beta-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 15 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
Guanylate cyclase activity GO:0004383
Catalysis of the reaction: GTP = 3',5'-cyclic GMP + diphosphate.
14 P16068 (/IDA) Q02153 (/IDA) Q02153 (/IDA) Q02153 (/IDA) Q02153 (/IDA) Q02153 (/IDA) Q02153 (/IDA) Q02153 (/IDA) Q02153 (/IDA) Q02153 (/IDA)
(4 more)
Heme binding GO:0020037
Interacting selectively and non-covalently with heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring.
14 O54865 (/ISS) P16068 (/ISS) Q02153 (/ISS) Q02153 (/ISS) Q02153 (/ISS) Q02153 (/ISS) Q02153 (/ISS) Q02153 (/ISS) Q02153 (/ISS) Q02153 (/ISS)
(4 more)
Guanylate cyclase activity GO:0004383
Catalysis of the reaction: GTP = 3',5'-cyclic GMP + diphosphate.
12 P20595 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS)
(2 more)
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).
12 P20595 (/IPI) Q02153 (/IPI) Q02153 (/IPI) Q02153 (/IPI) Q02153 (/IPI) Q02153 (/IPI) Q02153 (/IPI) Q02153 (/IPI) Q02153 (/IPI) Q02153 (/IPI)
(2 more)
Signaling receptor activity GO:0038023
Receiving a signal and transmitting it in the cell to initiate a change in cell activity. A signal is a physical entity or change in state that is used to transfer information in order to trigger a response.
11 Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS)
(1 more)
Guanylate cyclase activity GO:0004383
Catalysis of the reaction: GTP = 3',5'-cyclic GMP + diphosphate.
2 O54865 (/ISS) Q4ZHR9 (/ISS)
Heme binding GO:0020037
Interacting selectively and non-covalently with heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring.
2 P16068 (/IDA) P20595 (/IDA)
Guanylate cyclase activity GO:0004383
Catalysis of the reaction: GTP = 3',5'-cyclic GMP + diphosphate.
1 O54865 (/ISO)
Heme binding GO:0020037
Interacting selectively and non-covalently with heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring.
1 O54865 (/ISO)
Ion binding GO:0043167
Interacting selectively and non-covalently with ions, charged atoms or groups of atoms.
1 P20595 (/IDA)
Ion binding GO:0043167
Interacting selectively and non-covalently with ions, charged atoms or groups of atoms.
1 O54865 (/ISO)
Protein heterodimerization activity GO:0046982
Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer.
1 P20595 (/IDA)
Protein heterodimerization activity GO:0046982
Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer.
1 O54865 (/ISO)
Hsp90 protein binding GO:0051879
Interacting selectively and non-covalently with Hsp90 proteins, any of a group of heat shock proteins around 90kDa in size.
1 P20595 (/IDA)
Hsp90 protein binding GO:0051879
Interacting selectively and non-covalently with Hsp90 proteins, any of a group of heat shock proteins around 90kDa in size.
1 O54865 (/ISO)

There are 11 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
Nitric oxide-cGMP-mediated signaling pathway GO:0038060
Any intracellular signal transduction in which the signal is passed on within the cell by nitric oxide (NO) activating soluble guanylyl cyclase (sGC). Includes synthesis of nitric oxide, guanylyl cyclase activity, and downstream effectors that further transmit the signal within the cell following activation by cGMP.
14 O54865 (/ISS) P20595 (/ISS) Q02153 (/ISS) Q02153 (/ISS) Q02153 (/ISS) Q02153 (/ISS) Q02153 (/ISS) Q02153 (/ISS) Q02153 (/ISS) Q02153 (/ISS)
(4 more)
Cellular response to nitric oxide GO:0071732
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 nitric oxide stimulus.
14 O54865 (/ISS) P20595 (/ISS) Q02153 (/ISS) Q02153 (/ISS) Q02153 (/ISS) Q02153 (/ISS) Q02153 (/ISS) Q02153 (/ISS) Q02153 (/ISS) Q02153 (/ISS)
(4 more)
CGMP biosynthetic process GO:0006182
The chemical reactions and pathways resulting in the formation of cyclic GMP, guanosine 3',5'-phosphate.
12 P16068 (/IDA) Q02153 (/IDA) Q02153 (/IDA) Q02153 (/IDA) Q02153 (/IDA) Q02153 (/IDA) Q02153 (/IDA) Q02153 (/IDA) Q02153 (/IDA) Q02153 (/IDA)
(2 more)
Nitric oxide mediated signal transduction GO:0007263
Any intracellular signal transduction in which the signal is passed on within the cell via nitric oxide (NO). Includes synthesis of nitric oxide, receptors/sensors for nitric oxide (such as soluble guanylyl cyclase/sGC) and downstream effectors that further transmit the signal within the cell. Nitric oxide transmits its downstream effects through either cyclic GMP (cGMP)-dependent or independent mechanisms.
11 Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS)
(1 more)
Blood circulation GO:0008015
The flow of blood through the body of an animal, enabling the transport of nutrients to the tissues and the removal of waste products.
11 Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS)
(1 more)
CGMP biosynthetic process GO:0006182
The chemical reactions and pathways resulting in the formation of cyclic GMP, guanosine 3',5'-phosphate.
2 O54865 (/ISS) Q4ZHR9 (/ISS)
CGMP biosynthetic process GO:0006182
The chemical reactions and pathways resulting in the formation of cyclic GMP, guanosine 3',5'-phosphate.
1 O54865 (/ISO)
CGMP-mediated signaling GO:0019934
Any intracellular signal transduction in which the signal is passed on within the cell via cyclic GMP (cGMP). Includes production of cGMP, and downstream effectors that further transmit the signal within the cell.
1 O54865 (/IMP)
Nitric oxide-cGMP-mediated signaling pathway GO:0038060
Any intracellular signal transduction in which the signal is passed on within the cell by nitric oxide (NO) activating soluble guanylyl cyclase (sGC). Includes synthesis of nitric oxide, guanylyl cyclase activity, and downstream effectors that further transmit the signal within the cell following activation by cGMP.
1 P16068 (/IDA)
Cellular response to nitric oxide GO:0071732
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 nitric oxide stimulus.
1 P16068 (/IDA)
Trans-synaptic signaling by nitric oxide, modulating synaptic transmission GO:0099555
Cell-cell signaling between presynapse and postsynapse, via the release and reception of nitric oxide molecules, that modulates the synaptic transmission properties of the synapse.
1 O54865 (/IMP)

There are 15 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
Guanylate cyclase complex, soluble GO:0008074
Complex that possesses guanylate cyclase activity and is not bound to a membrane.
15 P16068 (/IDA) P20595 (/IDA) Q02153 (/IDA) Q02153 (/IDA) Q02153 (/IDA) Q02153 (/IDA) Q02153 (/IDA) Q02153 (/IDA) Q02153 (/IDA) Q02153 (/IDA)
(5 more)
Guanylate cyclase complex, soluble GO:0008074
Complex that possesses guanylate cyclase activity and is not bound to a membrane.
11 Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS) Q02153 (/TAS)
(1 more)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
2 O54865 (/ISS) Q4ZHR9 (/ISS)
Guanylate cyclase complex, soluble GO:0008074
Complex that possesses guanylate cyclase activity and is not bound to a membrane.
2 O54865 (/ISS) Q4ZHR9 (/ISS)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 P16068 (/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 P20595 (/TAS)
Guanylate cyclase complex, soluble GO:0008074
Complex that possesses guanylate cyclase activity and is not bound to a membrane.
1 O54865 (/ISO)
Protein-containing complex GO:0032991
A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which at least one component is a protein and the constituent parts function together.
1 P20595 (/IDA)
Protein-containing complex GO:0032991
A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which at least one component is a protein and the constituent parts function together.
1 O54865 (/ISO)
Presynaptic active zone GO:0048786
A specialized region of the plasma membrane and cell cortex of a presynaptic neuron; encompasses a region of the plasma membrane where synaptic vesicles dock and fuse, and a specialized cortical cytoskeletal matrix.
1 P20595 (/IDA)
Presynaptic active zone GO:0048786
A specialized region of the plasma membrane and cell cortex of a presynaptic neuron; encompasses a region of the plasma membrane where synaptic vesicles dock and fuse, and a specialized cortical cytoskeletal matrix.
1 O54865 (/ISO)
Presynaptic active zone cytoplasmic component GO:0098831
A specialized region below the presynaptic membrane, characterized by electron-dense material, a specialized cytoskeletal matrix and accumulated (associated) synaptic vesicles.
1 P20595 (/IDA)
Presynaptic active zone cytoplasmic component GO:0098831
A specialized region below the presynaptic membrane, characterized by electron-dense material, a specialized cytoskeletal matrix and accumulated (associated) synaptic vesicles.
1 O54865 (/ISO)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
1 P20595 (/IDA)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
1 O54865 (/ISO)