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: waiting to be named.

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 15: Lon protease homolog, mitochondrial

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 24 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
ATP-dependent peptidase activity GO:0004176
Catalysis of the reaction: ATP + H2O = ADP + phosphate, to drive the hydrolysis of peptide bonds.
3 P36776 (/IDA) Q8CGK3 (/IDA) Q924S5 (/IDA)
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).
3 P36776 (/IPI) P93655 (/IPI) Q59HJ6 (/IPI)
Mitochondrial promoter sequence-specific DNA binding GO:0001018
Interacting selectively and non-covalently with a DNA region that controls the transcription of the mitochondrial DNA.
2 P36776 (/IDA) Q8CGK3 (/IDA)
ATP-dependent peptidase activity GO:0004176
Catalysis of the reaction: ATP + H2O = ADP + phosphate, to drive the hydrolysis of peptide bonds.
2 P36775 (/IMP) P36775 (/IMP)
ATP binding GO:0005524
Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
2 P36776 (/IDA) P93655 (/IDA)
ATP binding GO:0005524
Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
2 P36775 (/RCA) P36775 (/RCA)
Serine-type peptidase activity GO:0008236
Catalysis of the hydrolysis of peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
2 P36775 (/RCA) P36775 (/RCA)
Single-stranded DNA binding GO:0003697
Interacting selectively and non-covalently with single-stranded DNA.
1 Q8CGK3 (/IDA)
Single-stranded RNA binding GO:0003727
Interacting selectively and non-covalently with single-stranded RNA.
1 P36776 (/IDA)
Single-stranded RNA binding GO:0003727
Interacting selectively and non-covalently with single-stranded RNA.
1 Q8CGK3 (/ISO)
ATP-dependent peptidase activity GO:0004176
Catalysis of the reaction: ATP + H2O = ADP + phosphate, to drive the hydrolysis of peptide bonds.
1 Q8CGK3 (/ISO)
Serine-type endopeptidase activity GO:0004252
Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
1 Q09769 (/ISM)
Serine-type endopeptidase activity GO:0004252
Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
1 Q7KUT2 (/ISS)
ATP binding GO:0005524
Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
1 Q8CGK3 (/ISO)
ATP binding GO:0005524
Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
1 Q09769 (/ISS)
ATPase activity GO:0016887
Catalysis of the reaction: ATP + H2O = ADP + phosphate + 2 H+. May or may not be coupled to another reaction.
1 Q8CGK3 (/IDA)
ADP binding GO:0043531
Interacting selectively and non-covalently with ADP, adenosine 5'-diphosphate.
1 P36776 (/IDA)
ADP binding GO:0043531
Interacting selectively and non-covalently with ADP, adenosine 5'-diphosphate.
1 Q8CGK3 (/ISO)
Sequence-specific DNA binding GO:0043565
Interacting selectively and non-covalently with DNA of a specific nucleotide composition, e.g. GC-rich DNA binding, or with a specific sequence motif or type of DNA e.g. promotor binding or rDNA binding.
1 P36776 (/IDA)
Sequence-specific DNA binding GO:0043565
Interacting selectively and non-covalently with DNA of a specific nucleotide composition, e.g. GC-rich DNA binding, or with a specific sequence motif or type of DNA e.g. promotor binding or rDNA binding.
1 Q8CGK3 (/ISO)
G-quadruplex DNA binding GO:0051880
Interacting selectively and non-covalently with G-quadruplex DNA structures, in which groups of four guanines adopt a flat, cyclic Hoogsteen hydrogen-bonding arrangement known as a guanine tetrad. The stacking of guanine tetrads results in G-quadruplex DNA structures. G-quadruplex DNA can form under physiological conditions from some G-rich sequences, such as those found in telomeres, immunoglobulin switch regions, gene promoters, fragile X repeats, and the dimerization domain in the human immunodeficiency virus (HIV) genome.
1 P36776 (/IDA)
G-quadruplex DNA binding GO:0051880
Interacting selectively and non-covalently with G-quadruplex DNA structures, in which groups of four guanines adopt a flat, cyclic Hoogsteen hydrogen-bonding arrangement known as a guanine tetrad. The stacking of guanine tetrads results in G-quadruplex DNA structures. G-quadruplex DNA can form under physiological conditions from some G-rich sequences, such as those found in telomeres, immunoglobulin switch regions, gene promoters, fragile X repeats, and the dimerization domain in the human immunodeficiency virus (HIV) genome.
1 Q8CGK3 (/ISO)
DNA polymerase binding GO:0070182
Interacting selectively and non-covalently with a DNA polymerase.
1 P36776 (/IPI)
DNA polymerase binding GO:0070182
Interacting selectively and non-covalently with a DNA polymerase.
1 Q8CGK3 (/ISO)

There are 36 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
Cellular response to antibiotic GO:0071236
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 an antibiotic stimulus. An antibiotic is a chemical substance produced by a microorganism which has the capacity to inhibit the growth of or to kill other microorganisms.
7 Q9I5F9 (/IMP) Q9I5F9 (/IMP) Q9I5F9 (/IMP) Q9I5F9 (/IMP) Q9I5F9 (/IMP) Q9I5F9 (/IMP) Q9I5F9 (/IMP)
Regulation of nitric oxide metabolic process GO:0080164
Any process that modulates the frequency, rate or extent of the chemical reactions and pathways involving nitric oxide, nitrogen monoxide (NO), a colorless gas only slightly soluble in water.
7 Q9I5F9 (/IMP) Q9I5F9 (/IMP) Q9I5F9 (/IMP) Q9I5F9 (/IMP) Q9I5F9 (/IMP) Q9I5F9 (/IMP) Q9I5F9 (/IMP)
Response to hypoxia GO:0001666
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 a stimulus indicating lowered oxygen tension. Hypoxia, defined as a decline in O2 levels below normoxic levels of 20.8 - 20.95%, results in metabolic adaptation at both the cellular and organismal level.
2 P36776 (/IEP) Q924S5 (/IEP)
Protein folding GO:0006457
The process of assisting in the covalent and noncovalent assembly of single chain polypeptides or multisubunit complexes into the correct tertiary structure.
2 P36775 (/TAS) P36775 (/TAS)
Proteolysis GO:0006508
The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
2 Q8CGK3 (/IDA) Q924S5 (/IDA)
Protein quality control for misfolded or incompletely synthesized proteins GO:0006515
The chemical reactions and pathways resulting in the breakdown of misfolded or attenuated proteins.
2 P36775 (/IGI) P36775 (/IGI)
Protein quality control for misfolded or incompletely synthesized proteins GO:0006515
The chemical reactions and pathways resulting in the breakdown of misfolded or attenuated proteins.
2 P36775 (/IMP) P36775 (/IMP)
Protein quality control for misfolded or incompletely synthesized proteins GO:0006515
The chemical reactions and pathways resulting in the breakdown of misfolded or attenuated proteins.
2 P36775 (/TAS) P36775 (/TAS)
Mitochondrion organization GO:0007005
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a mitochondrion; includes mitochondrial morphogenesis and distribution, and replication of the mitochondrial genome as well as synthesis of new mitochondrial components.
2 P36776 (/IMP) Q7KUT2 (/IMP)
Response to heat GO:0009408
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 a heat stimulus, a temperature stimulus above the optimal temperature for that organism.
2 P36775 (/TAS) P36775 (/TAS)
Mitochondrial DNA metabolic process GO:0032042
The chemical reactions and pathways involving mitochondrial DNA.
2 P36775 (/TAS) P36775 (/TAS)
Mitochondrial respiratory chain complex assembly GO:0033108
The aggregation, arrangement and bonding together of a set of components to form a mitochondrial respiratory chain complex.
2 P36775 (/TAS) P36775 (/TAS)
Chaperone-mediated protein complex assembly GO:0051131
The aggregation, arrangement and bonding together of a set of components to form a protein complex, mediated by chaperone molecules that do not form part of the finished complex.
2 P36775 (/IGI) P36775 (/IGI)
Mitochondrial genome maintenance GO:0000002
The maintenance of the structure and integrity of the mitochondrial genome; includes replication and segregation of the mitochondrial chromosome.
1 P36776 (/NAS)
Proteolysis GO:0006508
The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
1 Q8CGK3 (/ISO)
Mitochondrion organization GO:0007005
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a mitochondrion; includes mitochondrial morphogenesis and distribution, and replication of the mitochondrial genome as well as synthesis of new mitochondrial components.
1 Q924S5 (/IEP)
Mitochondrion organization GO:0007005
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a mitochondrion; includes mitochondrial morphogenesis and distribution, and replication of the mitochondrial genome as well as synthesis of new mitochondrial components.
1 Q8CGK3 (/ISO)
Aging GO:0007568
A developmental process that is a deterioration and loss of function over time. Aging includes loss of functions such as resistance to disease, homeostasis, and fertility, as well as wear and tear. Aging includes cellular senescence, but is more inclusive. May precede death and may succeed developmental maturation (GO:0021700).
1 Q924S5 (/IEP)
Response to hormone GO:0009725
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 a hormone stimulus.
1 Q924S5 (/IEP)
Response to aluminum ion GO:0010044
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 aluminum ion stimulus.
1 Q924S5 (/IEP)
Modification-dependent protein catabolic process GO:0019941
The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent modification of the target protein.
1 Q59HJ6 (/IDA)
Protein catabolic process GO:0030163
The chemical reactions and pathways resulting in the breakdown of a protein by the destruction of the native, active configuration, with or without the hydrolysis of peptide bonds.
1 O44952 (/IMP)
Mitochondrial DNA metabolic process GO:0032042
The chemical reactions and pathways involving mitochondrial DNA.
1 P36776 (/NAS)
Cellular response to oxidative stress GO:0034599
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 oxidative stress, a state often resulting from exposure to high levels of reactive oxygen species, e.g. superoxide anions, hydrogen peroxide (H2O2), and hydroxyl radicals.
1 P36776 (/IC)
Cellular response to oxidative stress GO:0034599
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 oxidative stress, a state often resulting from exposure to high levels of reactive oxygen species, e.g. superoxide anions, hydrogen peroxide (H2O2), and hydroxyl radicals.
1 P36776 (/IDA)
Cellular response to oxidative stress GO:0034599
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 oxidative stress, a state often resulting from exposure to high levels of reactive oxygen species, e.g. superoxide anions, hydrogen peroxide (H2O2), and hydroxyl radicals.
1 Q8CGK3 (/ISO)
Cellular protein-containing complex assembly GO:0034622
The aggregation, arrangement and bonding together of a set of components to form a protein complex, occurring at the level of an individual cell.
1 Q924S5 (/IMP)
Cellular protein-containing complex assembly GO:0034622
The aggregation, arrangement and bonding together of a set of components to form a protein complex, occurring at the level of an individual cell.
1 Q8CGK3 (/ISO)
Mitochondrial protein catabolic process GO:0035694
The chemical reactions and pathways resulting in the breakdown of a mitochondrial protein. This process is necessary to maintain the healthy state of mitochondria and is thought to occur via the induction of an intramitochondrial lysosome-like organelle that acts to eliminate the damaged oxidised mitochondrial proteins without destroying the mitochondrial structure.
1 Q09769 (/IGI)
Positive regulation of protein catabolic process GO:0045732
Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the breakdown of a protein by the destruction of the native, active configuration, with or without the hydrolysis of peptide bonds.
1 Q7KUT2 (/IMP)
Protein homooligomerization GO:0051260
The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of identical component monomers. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer.
1 P36776 (/IDA)
Protein homooligomerization GO:0051260
The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of identical component monomers. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer.
1 Q8CGK3 (/ISO)
Proteolysis involved in cellular protein catabolic process GO:0051603
The hydrolysis of a peptide bond or bonds within a protein as part of the chemical reactions and pathways resulting in the breakdown of a protein by individual cells.
1 P36776 (/IDA)
Proteolysis involved in cellular protein catabolic process GO:0051603
The hydrolysis of a peptide bond or bonds within a protein as part of the chemical reactions and pathways resulting in the breakdown of a protein by individual cells.
1 Q8CGK3 (/ISO)
Oxidation-dependent protein catabolic process GO:0070407
The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the oxidation of one or more amino acid residues in the protein.
1 P36776 (/IMP)
Oxidation-dependent protein catabolic process GO:0070407
The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the oxidation of one or more amino acid residues in the protein.
1 Q8CGK3 (/ISO)

There are 18 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
Mitochondrion GO:0005739
A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.
9 K7EJE8 (/IDA) K7EKE6 (/IDA) P36776 (/IDA) P93655 (/IDA) Q7KUT2 (/IDA) Q8CGK3 (/IDA) Q924S5 (/IDA) Q9M9L7 (/IDA) Q9M9L8 (/IDA)
Mitochondrion GO:0005739
A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.
4 P36775 (/HDA) P36775 (/HDA) Q09769 (/HDA) Q8CGK3 (/HDA)
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 K7EJE8 (/IDA) K7EKE6 (/IDA) P36776 (/IDA) P93655 (/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.
3 K7EJE8 (/IDA) K7EKE6 (/IDA) P36776 (/IDA)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
3 K7EJE8 (/IDA) K7EKE6 (/IDA) P36776 (/IDA)
Mitochondrial matrix GO:0005759
The gel-like material, with considerable fine structure, that lies in the matrix space, or lumen, of a mitochondrion. It contains the enzymes of the tricarboxylic acid cycle and, in some organisms, the enzymes concerned with fatty acid oxidation.
3 P36775 (/IMP) P36775 (/IMP) P36776 (/IMP)
Mitochondrial matrix GO:0005759
The gel-like material, with considerable fine structure, that lies in the matrix space, or lumen, of a mitochondrion. It contains the enzymes of the tricarboxylic acid cycle and, in some organisms, the enzymes concerned with fatty acid oxidation.
2 Q59HJ6 (/IDA) Q924S5 (/IDA)
Mitochondrial matrix GO:0005759
The gel-like material, with considerable fine structure, that lies in the matrix space, or lumen, of a mitochondrion. It contains the enzymes of the tricarboxylic acid cycle and, in some organisms, the enzymes concerned with fatty acid oxidation.
2 Q09769 (/ISO) Q8CGK3 (/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 Q8CGK3 (/ISO)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
1 Q8CGK3 (/ISO)
Mitochondrion GO:0005739
A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.
1 Q8CGK3 (/ISO)
Mitochondrial matrix GO:0005759
The gel-like material, with considerable fine structure, that lies in the matrix space, or lumen, of a mitochondrion. It contains the enzymes of the tricarboxylic acid cycle and, in some organisms, the enzymes concerned with fatty acid oxidation.
1 Q7KUT2 (/ISS)
Peroxisome GO:0005777
A small organelle enclosed by a single membrane, and found in most eukaryotic cells. Contains peroxidases and other enzymes involved in a variety of metabolic processes including free radical detoxification, lipid catabolism and biosynthesis, and hydrogen peroxide metabolism.
1 Q7KUT2 (/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.
1 Q8CGK3 (/ISO)
Chloroplast GO:0009507
A chlorophyll-containing plastid with thylakoids organized into grana and frets, or stroma thylakoids, and embedded in a stroma.
1 Q9M9L7 (/IDA)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
1 P36776 (/HDA)
Mitochondrial nucleoid GO:0042645
The region of a mitochondrion to which the DNA is confined.
1 P36776 (/IDA)
Mitochondrial nucleoid GO:0042645
The region of a mitochondrion to which the DNA is confined.
1 Q8CGK3 (/ISO)
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