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:

"
DnaJ 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 21: DnaJ (Hsp40) homolog, subfamily B, member 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 21 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
Unfolded protein binding GO:0051082
Interacting selectively and non-covalently with an unfolded protein.
14 P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA)
(4 more)
Chaperone binding GO:0051087
Interacting selectively and non-covalently with a chaperone protein, a class of proteins that bind to nascent or unfolded polypeptides and ensure correct folding or transport.
14 P25686 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI)
(4 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).
13 O35723 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI)
(3 more)
ATPase activator activity GO:0001671
Binds to and increases the ATP hydrolysis activity of an ATPase.
12 P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA)
(2 more)
Hsp70 protein binding GO:0030544
Interacting selectively and non-covalently with Hsp70 proteins, any of a group of heat shock proteins around 70kDa in size.
12 P25686 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI) P25686 (/IPI)
(2 more)
Ubiquitin binding GO:0043130
Interacting selectively and non-covalently with ubiquitin, a protein that when covalently bound to other cellular proteins marks them for proteolytic degradation.
12 P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA)
(2 more)
Ubiquitin-dependent protein binding GO:0140036
Interacting selectively and non-covalently with a protein upon ubiquitination of the target protein.
12 P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA)
(2 more)
Protein folding chaperone GO:0044183
Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules) that contributes to the process of protein folding.
2 Q8NHS0 (/IDA) Q8NHS0 (/IDA)
Unfolded protein binding GO:0051082
Interacting selectively and non-covalently with an unfolded protein.
2 Q9QYI5 (/ISO) Q9QYI7 (/ISO)
Chaperone binding GO:0051087
Interacting selectively and non-covalently with a chaperone protein, a class of proteins that bind to nascent or unfolded polypeptides and ensure correct folding or transport.
2 Q9QYI5 (/ISO) Q9QYI7 (/ISO)
ATPase activator activity GO:0001671
Binds to and increases the ATP hydrolysis activity of an ATPase.
1 Q9QYI5 (/ISO)
ATPase activator activity GO:0001671
Binds to and increases the ATP hydrolysis activity of an ATPase.
1 Q9QYI5 (/ISS)
Hsp70 protein binding GO:0030544
Interacting selectively and non-covalently with Hsp70 proteins, any of a group of heat shock proteins around 70kDa in size.
1 Q9QYI5 (/ISO)
Hsp70 protein binding GO:0030544
Interacting selectively and non-covalently with Hsp70 proteins, any of a group of heat shock proteins around 70kDa in size.
1 Q9QYI5 (/ISS)
Polyubiquitin modification-dependent protein binding GO:0031593
Interacting selectively and non-covalently with a protein upon poly-ubiquitination of the target protein.
1 Q9QYI5 (/ISO)
Polyubiquitin modification-dependent protein binding GO:0031593
Interacting selectively and non-covalently with a protein upon poly-ubiquitination of the target protein.
1 Q9QYI5 (/ISS)
Ubiquitin protein ligase binding GO:0031625
Interacting selectively and non-covalently with a ubiquitin protein ligase enzyme, any of the E3 proteins.
1 Q9QYI5 (/ISO)
Ubiquitin binding GO:0043130
Interacting selectively and non-covalently with ubiquitin, a protein that when covalently bound to other cellular proteins marks them for proteolytic degradation.
1 Q9QYI5 (/ISO)
Protein folding chaperone GO:0044183
Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules) that contributes to the process of protein folding.
1 Q9QYI7 (/ISO)
Proteasome binding GO:0070628
Interacting selectively and non-covalently with a proteasome, a large multisubunit protein complex that catalyzes protein degradation.
1 Q9QYI5 (/ISO)
Ubiquitin-dependent protein binding GO:0140036
Interacting selectively and non-covalently with a protein upon ubiquitination of the target protein.
1 Q9QYI5 (/ISO)

There are 40 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
Negative regulation of cell population proliferation GO:0008285
Any process that stops, prevents or reduces the rate or extent of cell proliferation.
18 B0CM59 (/ISS) B0CM59 (/ISS) B0CM59 (/ISS) B0CM59 (/ISS) B0CM59 (/ISS) B0CM59 (/ISS) B0CM59 (/ISS) B0CM59 (/ISS) B0CM59 (/ISS) B0CM59 (/ISS)
(8 more)
Negative regulation of cell growth GO:0030308
Any process that stops, prevents, or reduces the frequency, rate, extent or direction of cell growth.
18 B0CM59 (/ISS) B0CM59 (/ISS) B0CM59 (/ISS) B0CM59 (/ISS) B0CM59 (/ISS) B0CM59 (/ISS) B0CM59 (/ISS) B0CM59 (/ISS) B0CM59 (/ISS) B0CM59 (/ISS)
(8 more)
Negative regulation of inclusion body assembly GO:0090084
Any process that decreases the rate, frequency, or extent of inclusion body assembly. Inclusion body assembly is the aggregation, arrangement and bonding together of a set of components to form an inclusion body.
14 P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA)
(4 more)
Response to unfolded protein GO:0006986
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an unfolded protein stimulus.
12 P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS)
(2 more)
Negative regulation of cell population proliferation GO:0008285
Any process that stops, prevents or reduces the rate or extent of cell proliferation.
12 P25686 (/IGI) P25686 (/IGI) P25686 (/IGI) P25686 (/IGI) P25686 (/IGI) P25686 (/IGI) P25686 (/IGI) P25686 (/IGI) P25686 (/IGI) P25686 (/IGI)
(2 more)
Negative regulation of cell growth GO:0030308
Any process that stops, prevents, or reduces the frequency, rate, extent or direction of cell growth.
12 P25686 (/IGI) P25686 (/IGI) P25686 (/IGI) P25686 (/IGI) P25686 (/IGI) P25686 (/IGI) P25686 (/IGI) P25686 (/IGI) P25686 (/IGI) P25686 (/IGI)
(2 more)
Regulation of protein ubiquitination GO:0031396
Any process that modulates the frequency, rate or extent of the addition of ubiquitin groups to a protein.
12 P25686 (/IMP) P25686 (/IMP) P25686 (/IMP) P25686 (/IMP) P25686 (/IMP) P25686 (/IMP) P25686 (/IMP) P25686 (/IMP) P25686 (/IMP) P25686 (/IMP)
(2 more)
Negative regulation of protein binding GO:0032091
Any process that stops, prevents, or reduces the frequency, rate or extent of protein binding.
12 P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA)
(2 more)
Positive regulation of proteasomal ubiquitin-dependent protein catabolic process GO:0032436
Any process that activates or increases the frequency, rate or extent of the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of ubiquitin, and mediated by the proteasome.
12 P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS)
(2 more)
Positive regulation of ATPase activity GO:0032781
Any process that activates or increases the rate of ATP hydrolysis by an ATPase.
12 P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA)
(2 more)
Protein refolding GO:0042026
The process carried out by a cell that restores the biological activity of an unfolded or misfolded protein, using helper proteins such as chaperones.
12 P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA)
(2 more)
Chaperone-mediated protein folding GO:0061077
The process of inhibiting aggregation and assisting in the covalent and noncovalent assembly of single chain polypeptides or multisubunit complexes into the correct tertiary structure that is dependent on interaction with a chaperone.
12 P25686 (/IMP) P25686 (/IMP) P25686 (/IMP) P25686 (/IMP) P25686 (/IMP) P25686 (/IMP) P25686 (/IMP) P25686 (/IMP) P25686 (/IMP) P25686 (/IMP)
(2 more)
Neuron cellular homeostasis GO:0070050
The cellular homeostatic process that preserves a neuron in a stable, differentiated functional and structural state.
12 P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS) P25686 (/TAS)
(2 more)
Regulation of chaperone-mediated protein folding GO:1903644
Any process that modulates the frequency, rate or extent of chaperone-mediated protein folding.
12 P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA)
(2 more)
Skeletal muscle tissue development GO:0007519
The developmental sequence of events leading to the formation of adult skeletal muscle tissue. The main events are: the fusion of myoblasts to form myotubes that increase in size by further fusion to them of myoblasts, the formation of myofibrils within their cytoplasm and the establishment of functional neuromuscular junctions with motor neurons. At this stage they can be regarded as mature muscle fibers.
5 A0A1D5NSC8 (/IMP) A0A2R8QPK4 (/IMP) Q1LY18 (/IMP) Q6DHR2 (/IMP) Q7ZW83 (/IMP)
Locomotory behavior GO:0007626
The specific movement from place to place of an organism in response to external or internal stimuli. Locomotion of a whole organism in a manner dependent upon some combination of that organism's internal state and external conditions.
5 A0A1D5NSC8 (/IMP) A0A2R8QPK4 (/IMP) Q1LY18 (/IMP) Q6DHR2 (/IMP) Q7ZW83 (/IMP)
Muscle attachment GO:0016203
The developmental process in which a skeletal muscle attaches to its target (such as bone or body wall).
4 A0A1D5NSC8 (/IMP) A0A2R8QPK4 (/IMP) Q1LY18 (/IMP) Q7ZW83 (/IMP)
Myofibril assembly GO:0030239
Formation of myofibrils, the repeating units of striated muscle.
4 A0A1D5NSC8 (/IMP) A0A2R8QPK4 (/IMP) Q1LY18 (/IMP) Q7ZW83 (/IMP)
Negative regulation of response to endoplasmic reticulum stress GO:1903573
Any process that stops, prevents or reduces the frequency, rate or extent of a response to endoplasmic reticulum stress.
4 A0A1D5NSC8 (/IMP) A0A2R8QPK4 (/IMP) Q1LY18 (/IMP) Q7ZW83 (/IMP)
Chaperone-mediated protein folding GO:0061077
The process of inhibiting aggregation and assisting in the covalent and noncovalent assembly of single chain polypeptides or multisubunit complexes into the correct tertiary structure that is dependent on interaction with a chaperone.
2 Q8NHS0 (/IDA) Q8NHS0 (/IDA)
Chaperone-mediated protein folding GO:0061077
The process of inhibiting aggregation and assisting in the covalent and noncovalent assembly of single chain polypeptides or multisubunit complexes into the correct tertiary structure that is dependent on interaction with a chaperone.
2 Q9QYI5 (/ISO) Q9QYI7 (/ISO)
Negative regulation of inclusion body assembly GO:0090084
Any process that decreases the rate, frequency, or extent of inclusion body assembly. Inclusion body assembly is the aggregation, arrangement and bonding together of a set of components to form an inclusion body.
2 Q9QYI5 (/ISO) Q9QYI7 (/ISO)
Negative regulation of cell population proliferation GO:0008285
Any process that stops, prevents or reduces the rate or extent of cell proliferation.
1 Q9QYI5 (/ISO)
Negative regulation of cell growth GO:0030308
Any process that stops, prevents, or reduces the frequency, rate, extent or direction of cell growth.
1 Q9QYI5 (/ISO)
Ubiquitin-dependent ERAD pathway GO:0030433
The series of steps necessary to target endoplasmic reticulum (ER)-resident proteins for degradation by the cytoplasmic proteasome. Begins with recognition of the ER-resident protein, includes retrotranslocation (dislocation) of the protein from the ER to the cytosol, protein ubiquitination necessary for correct substrate transfer, transport of the protein to the proteasome, and ends with degradation of the protein by the cytoplasmic proteasome.
1 Q9QYI5 (/ISO)
Regulation of protein ubiquitination GO:0031396
Any process that modulates the frequency, rate or extent of the addition of ubiquitin groups to a protein.
1 Q9QYI5 (/ISO)
Regulation of protein ubiquitination GO:0031396
Any process that modulates the frequency, rate or extent of the addition of ubiquitin groups to a protein.
1 Q9QYI5 (/ISS)
Positive regulation of protein ubiquitination GO:0031398
Any process that activates or increases the frequency, rate or extent of the addition of ubiquitin groups to a protein.
1 Q9QYI5 (/ISO)
Negative regulation of protein binding GO:0032091
Any process that stops, prevents, or reduces the frequency, rate or extent of protein binding.
1 Q9QYI5 (/ISO)
Positive regulation of proteasomal ubiquitin-dependent protein catabolic process GO:0032436
Any process that activates or increases the frequency, rate or extent of the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of ubiquitin, and mediated by the proteasome.
1 Q9QYI5 (/ISO)
Positive regulation of ATPase activity GO:0032781
Any process that activates or increases the rate of ATP hydrolysis by an ATPase.
1 Q9QYI5 (/ISO)
Positive regulation of ATPase activity GO:0032781
Any process that activates or increases the rate of ATP hydrolysis by an ATPase.
1 Q9QYI5 (/ISS)
Regulation of protein localization GO:0032880
Any process that modulates the frequency, rate or extent of any process in which a protein is transported to, or maintained in, a specific location.
1 Q9QYI5 (/ISO)
Protein refolding GO:0042026
The process carried out by a cell that restores the biological activity of an unfolded or misfolded protein, using helper proteins such as chaperones.
1 Q9QYI5 (/ISO)
Proteasome-mediated ubiquitin-dependent protein catabolic process GO:0043161
The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of ubiquitin, and mediated by the proteasome.
1 Q9QYI5 (/ISO)
Proteasome-mediated ubiquitin-dependent protein catabolic process GO:0043161
The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of ubiquitin, and mediated by the proteasome.
1 Q9QYI5 (/ISS)
Chaperone-mediated protein folding GO:0061077
The process of inhibiting aggregation and assisting in the covalent and noncovalent assembly of single chain polypeptides or multisubunit complexes into the correct tertiary structure that is dependent on interaction with a chaperone.
1 Q9QYI5 (/ISS)
Negative regulation of protein deubiquitination GO:0090086
Any process that decreases the frequency, rate or extent of protein deubiquitination. Protein deubiquitination is the removal of one or more ubiquitin groups from a protein.
1 Q9QYI5 (/ISO)
Regulation of chaperone-mediated protein folding GO:1903644
Any process that modulates the frequency, rate or extent of chaperone-mediated protein folding.
1 Q9QYI5 (/ISO)
Regulation of chaperone-mediated protein folding GO:1903644
Any process that modulates the frequency, rate or extent of chaperone-mediated protein folding.
1 Q9QYI5 (/ISS)

There are 16 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
Nuclear membrane GO:0031965
Either of the lipid bilayers that surround the nucleus and form the nuclear envelope; excludes the intermembrane space.
15 C9JRD2 (/IDA) C9JRD2 (/IDA) C9JRD2 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA)
(5 more)
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.
14 P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA)
(4 more)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
14 P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA) P25686 (/IDA)
(4 more)
Nuclear envelope GO:0005635
The double lipid bilayer enclosing the nucleus and separating its contents from the rest of the cytoplasm; includes the intermembrane space, a gap of width 20-40 nm (also called the perinuclear space).
4 A0A1D5NSC8 (/IDA) A0A2R8QPK4 (/IDA) Q1LY18 (/IDA) Q7ZW83 (/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.
2 Q8NHS0 (/HDA) Q8NHS0 (/HDA)
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.
2 Q9QYI5 (/ISO) Q9QYI7 (/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.
2 Q9QYI5 (/ISO) Q9QYI7 (/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 Q9QYI5 (/ISS)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 O35723 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q9QYI5 (/ISO)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q9QYI5 (/ISS)
Centrosome GO:0005813
A structure comprised of a core structure (in most organisms, a pair of centrioles) and peripheral material from which a microtubule-based structure, such as a spindle apparatus, is organized. Centrosomes occur close to the nucleus during interphase in many eukaryotic cells, though in animal cells it changes continually during the cell-division cycle.
1 O35723 (/IDA)
Inclusion body GO:0016234
A discrete intracellular part formed of aggregated molecules such as proteins or other biopolymers.
1 Q9QYI5 (/ISO)
Intrinsic component of endoplasmic reticulum membrane GO:0031227
The component of the endoplasmic reticulum membrane consisting of the gene products and protein complexes having either part of their peptide sequence embedded in the hydrophobic region of the membrane or some other covalently attached group such as a GPI anchor that is similarly embedded in the membrane.
1 Q9QYI5 (/ISO)
Intrinsic component of endoplasmic reticulum membrane GO:0031227
The component of the endoplasmic reticulum membrane consisting of the gene products and protein complexes having either part of their peptide sequence embedded in the hydrophobic region of the membrane or some other covalently attached group such as a GPI anchor that is similarly embedded in the membrane.
1 Q9QYI5 (/ISS)
Nuclear membrane GO:0031965
Either of the lipid bilayers that surround the nucleus and form the nuclear envelope; excludes the intermembrane space.
1 Q9QYI5 (/ISO)
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