The name of this superfamily has been modified since the most recent official CATH+ release (v4_2_0). At the point of the last release, this superfamily was named:

"
Leucine-rich Repeat Variant
".

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 69058: Importin 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 18 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
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).
7 O13864 (/IPI) P52296 (/IPI) P52297 (/IPI) P70168 (/IPI) Q06142 (/IPI) Q14974 (/IPI) Q9FJD4 (/IPI)
Protein transporter activity GO:0008565
Enables the directed movement of proteins into, out of or within a cell, or between cells.
3 P70168 (/IDA) Q06142 (/IDA) Q9FJD4 (/IDA)
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
1 Q14974 (/IDA)
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
1 P70168 (/ISO)
Ran guanyl-nucleotide exchange factor activity GO:0005087
Stimulates the exchange of guanyl nucleotides associated with a GTPase of the Ran family. 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.
1 Q06142 (/IDA)
GTP binding GO:0005525
Interacting selectively and non-covalently with GTP, guanosine triphosphate.
1 O13864 (/NAS)
Nuclear localization sequence binding GO:0008139
Interacting selectively and non-covalently with a nuclear localization sequence, a specific peptide sequence that acts as a signal to localize the protein within the nucleus.
1 Q8IAY9 (/ISS)
Nuclear localization sequence binding GO:0008139
Interacting selectively and non-covalently with a nuclear localization sequence, a specific peptide sequence that acts as a signal to localize the protein within the nucleus.
1 Q14974 (/TAS)
Zinc ion binding GO:0008270
Interacting selectively and non-covalently with zinc (Zn) ions.
1 Q14974 (/TAS)
Kinesin binding GO:0019894
Interacting selectively and non-covalently and stoichiometrically with kinesin, a member of a superfamily of microtubule-based motor proteins that perform force-generating tasks such as organelle transport and chromosome segregation.
1 P52296 (/IPI)
Enzyme binding GO:0019899
Interacting selectively and non-covalently with any enzyme.
1 Q14974 (/IPI)
Enzyme binding GO:0019899
Interacting selectively and non-covalently with any enzyme.
1 P70168 (/ISO)
Protein domain specific binding GO:0019904
Interacting selectively and non-covalently with a specific domain of a protein.
1 Q14974 (/IPI)
Protein domain specific binding GO:0019904
Interacting selectively and non-covalently with a specific domain of a protein.
1 P70168 (/ISO)
Protein complex binding GO:0032403
Interacting selectively and non-covalently with any protein complex (a complex of two or more proteins that may include other nonprotein molecules).
1 P52296 (/IPI)
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 P70168 (/IDA)
Importin-alpha family protein binding GO:0061676
Interacting selectively and non-covalently with any member of the importin-alpha family.
1 Q06142 (/IPI)
Disordered domain specific binding GO:0097718
Interacting selectively and non-covalently with a disordered domain of a protein.
1 Q06142 (/IPI)

There are 42 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
Protein import into nucleus GO:0006606
The directed movement of a protein from the cytoplasm to the nucleus.
3 P70168 (/IDA) Q14974 (/IDA) Q9FJD4 (/IDA)
Protein import into nucleus GO:0006606
The directed movement of a protein from the cytoplasm to the nucleus.
2 O18388 (/IMP) Q06142 (/IMP)
Ribosomal protein import into nucleus GO:0006610
The directed movement of a ribosomal protein from the cytoplasm into the nucleus, across the nuclear membrane.
2 P70168 (/IDA) Q14974 (/IDA)
Reproduction GO:0000003
The production of new individuals that contain some portion of genetic material inherited from one or more parent organisms.
1 Q9BIB8 (/IMP)
Protein import into nucleus, translocation GO:0000060
A protein transport process that contributes to protein import into the nucleus, and that results in the vectorial transfer of a cargo-carrier protein complex through the nuclear pore complex from the cytoplasmic side to the nucleoplasmic side of the nuclear envelope.
1 Q14974 (/TAS)
Mitotic cell cycle GO:0000278
Progression through the phases of the mitotic cell cycle, the most common eukaryotic cell cycle, which canonically comprises four successive phases called G1, S, G2, and M and includes replication of the genome and the subsequent segregation of chromosomes into daughter cells. In some variant cell cycles nuclear replication or nuclear division may not be followed by cell division, or G1 and G2 phases may be absent.
1 O18388 (/IMP)
Apoptotic DNA fragmentation GO:0006309
The cleavage of DNA during apoptosis, which usually occurs in two stages: cleavage into fragments of about 50 kbp followed by cleavage between nucleosomes to yield 200 bp fragments.
1 Q14974 (/TAS)
Protein targeting GO:0006605
The process of targeting specific proteins to particular regions of the cell, typically membrane-bounded subcellular organelles. Usually requires an organelle specific protein sequence motif.
1 O13864 (/NAS)
Protein import into nucleus GO:0006606
The directed movement of a protein from the cytoplasm to the nucleus.
1 O18388 (/IGI)
Protein import into nucleus GO:0006606
The directed movement of a protein from the cytoplasm to the nucleus.
1 P70168 (/ISO)
NLS-bearing protein import into nucleus GO:0006607
The directed movement of a protein bearing a nuclear localization signal (NLS) from the cytoplasm into the nucleus, across the nuclear membrane.
1 O18388 (/IDA)
NLS-bearing protein import into nucleus GO:0006607
The directed movement of a protein bearing a nuclear localization signal (NLS) from the cytoplasm into the nucleus, across the nuclear membrane.
1 O18388 (/IMP)
NLS-bearing protein import into nucleus GO:0006607
The directed movement of a protein bearing a nuclear localization signal (NLS) from the cytoplasm into the nucleus, across the nuclear membrane.
1 Q8IAY9 (/ISS)
NLS-bearing protein import into nucleus GO:0006607
The directed movement of a protein bearing a nuclear localization signal (NLS) from the cytoplasm into the nucleus, across the nuclear membrane.
1 Q14974 (/TAS)
Ribosomal protein import into nucleus GO:0006610
The directed movement of a ribosomal protein from the cytoplasm into the nucleus, across the nuclear membrane.
1 P70168 (/ISO)
Protein targeting to membrane GO:0006612
The process of directing proteins towards a membrane, usually using signals contained within the protein.
1 Q06142 (/IMP)
Phosphatidylcholine biosynthetic process GO:0006656
The chemical reactions and pathways resulting in the formation of phosphatidylcholines, any of a class of glycerophospholipids in which the phosphatidyl group is esterified to the hydroxyl group of choline.
1 Q06142 (/IGI)
Phosphatidylcholine biosynthetic process GO:0006656
The chemical reactions and pathways resulting in the formation of phosphatidylcholines, any of a class of glycerophospholipids in which the phosphatidyl group is esterified to the hydroxyl group of choline.
1 Q06142 (/IMP)
Nucleocytoplasmic transport GO:0006913
The directed movement of molecules between the nucleus and the cytoplasm.
1 O13864 (/NAS)
Mitotic chromosome movement towards spindle pole GO:0007079
The cell cycle process in which the directed movement of chromosomes from the center of the spindle towards the spindle poles occurs. This mediates by the shortening of microtubules attached to the chromosomes, during mitosis.
1 Q14974 (/IMP)
Mitotic chromosome movement towards spindle pole GO:0007079
The cell cycle process in which the directed movement of chromosomes from the center of the spindle towards the spindle poles occurs. This mediates by the shortening of microtubules attached to the chromosomes, during mitosis.
1 P70168 (/ISO)
Mitotic metaphase plate congression GO:0007080
The cell cycle process in which chromosomes are aligned at the metaphase plate, a plane halfway between the poles of the mitotic spindle, during mitosis.
1 Q14974 (/IMP)
Mitotic metaphase plate congression GO:0007080
The cell cycle process in which chromosomes are aligned at the metaphase plate, a plane halfway between the poles of the mitotic spindle, during mitosis.
1 P70168 (/ISO)
Chorion-containing eggshell formation GO:0007304
The construction of a chorion-containing eggshell. An example of this is found in Drosophila melanogaster.
1 O18388 (/IMP)
Embryo development ending in birth or egg hatching GO:0009792
The process whose specific outcome is the progression of an embryo over time, from zygote formation until the end of the embryonic life stage. The end of the embryonic life stage is organism-specific and may be somewhat arbitrary; for mammals it is usually considered to be birth, for insects the hatching of the first instar larva from the eggshell.
1 Q9BIB8 (/IMP)
Modulation by virus of host process GO:0019054
The process in which a virus effects a change in the processes and activities of its host organism.
1 Q14974 (/TAS)
Astral microtubule organization GO:0030953
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of astral microtubules, any of the spindle microtubules that radiate in all directions from the spindle poles.
1 Q14974 (/IMP)
Astral microtubule organization GO:0030953
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of astral microtubules, any of the spindle microtubules that radiate in all directions from the spindle poles.
1 P70168 (/ISO)
Ran protein signal transduction GO:0031291
A series of molecular signals within the cell that are mediated by a member of the Ran family of proteins switching to a GTP-bound active state.
1 Q14974 (/IMP)
Ran protein signal transduction GO:0031291
A series of molecular signals within the cell that are mediated by a member of the Ran family of proteins switching to a GTP-bound active state.
1 P70168 (/ISO)
Establishment of mitotic spindle localization GO:0040001
The cell cycle process in which the directed movement of the mitotic spindle to a specific location in the cell occurs.
1 Q14974 (/IMP)
Establishment of mitotic spindle localization GO:0040001
The cell cycle process in which the directed movement of the mitotic spindle to a specific location in the cell occurs.
1 P70168 (/ISO)
Neutrophil degranulation GO:0043312
The regulated exocytosis of secretory granules containing preformed mediators such as proteases, lipases, and inflammatory mediators by a neutrophil.
1 Q14974 (/TAS)
Establishment of protein localization GO:0045184
The directed movement of a protein to a specific location.
1 Q14974 (/IMP)
Establishment of protein localization GO:0045184
The directed movement of a protein to a specific location.
1 P70168 (/ISO)
Regulation of cholesterol biosynthetic process GO:0045540
Any process that modulates the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of cholesterol.
1 Q14974 (/TAS)
Nuclear pore complex assembly GO:0051292
The aggregation, arrangement and bonding together of a set of components to form a nuclear pore complex.
1 Q06142 (/IMP)
Positive regulation of NFAT protein import into nucleus GO:0051533
Any process that activates or increases the frequency, rate or extent of the movement of an NFAT protein from the cytoplasm to the nucleus.
1 O18388 (/IMP)
Regulation of protein desumoylation GO:0060188
Any process that modulates the frequency, rate or extent of protein desumoylation. Protein desumoylation is the process in which a SUMO protein (small ubiquitin-related modifier) is cleaved from its target protein.
1 Q06142 (/IMP)
Intracellular transport of virus GO:0075733
The directed movement of a virus, or part of a virus, within the host cell.
1 Q14974 (/TAS)
Mitotic spindle assembly GO:0090307
The aggregation, arrangement and bonding together of a set of components to form the spindle that contributes to the process of mitosis.
1 Q14974 (/IMP)
Mitotic spindle assembly GO:0090307
The aggregation, arrangement and bonding together of a set of components to form the spindle that contributes to the process of mitosis.
1 P70168 (/ISO)

There are 33 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
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
4 G5EAZ4 (/IDA) O18388 (/IDA) Q06142 (/IDA) Q9FJD4 (/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.
4 F4IYK3 (/IDA) J3KTM9 (/IDA) Q0WML1 (/IDA) Q14974 (/IDA)
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).
3 O13864 (/IDA) O18388 (/IDA) Q14974 (/IDA)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
3 J3KTM9 (/IDA) O18388 (/IDA) Q14974 (/IDA)
Nuclear pore GO:0005643
Any of the numerous similar discrete openings in the nuclear envelope of a eukaryotic cell, where the inner and outer nuclear membranes are joined.
2 O18388 (/ISS) Q8IAY9 (/ISS)
Nuclear membrane GO:0031965
Either of the lipid bilayers that surround the nucleus and form the nuclear envelope; excludes the intermembrane space.
2 J3KTM9 (/IDA) Q14974 (/IDA)
Extracellular region GO:0005576
The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
1 Q14974 (/TAS)
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 Q9FJD4 (/IDA)
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).
1 G5EAZ4 (/IMP)
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).
1 P70168 (/ISO)
Nuclear pore GO:0005643
Any of the numerous similar discrete openings in the nuclear envelope of a eukaryotic cell, where the inner and outer nuclear membranes are joined.
1 P52296 (/IDA)
Nuclear pore GO:0005643
Any of the numerous similar discrete openings in the nuclear envelope of a eukaryotic cell, where the inner and outer nuclear membranes are joined.
1 O13864 (/NAS)
Nuclear pore GO:0005643
Any of the numerous similar discrete openings in the nuclear envelope of a eukaryotic cell, where the inner and outer nuclear membranes are joined.
1 Q14974 (/TAS)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
1 P70168 (/ISO)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
1 Q14974 (/TAS)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q14974 (/TAS)
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 P70168 (/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 Q14974 (/TAS)
Chloroplast GO:0009507
A chlorophyll-containing plastid with thylakoids organized into grana and frets, or stroma thylakoids, and embedded in a stroma.
1 Q9FJD4 (/IDA)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
1 Q14974 (/IDA)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
1 P70168 (/ISO)
Nuclear membrane GO:0031965
Either of the lipid bilayers that surround the nucleus and form the nuclear envelope; excludes the intermembrane space.
1 P70168 (/ISO)
Nuclear periphery GO:0034399
The portion of the nuclear lumen proximal to the inner nuclear membrane.
1 O13864 (/IDA)
Specific granule lumen GO:0035580
The volume enclosed by the membrane of a specific granule, a granule with a membranous, tubular internal structure, found primarily in mature neutrophil cells. Most are released into the extracellular fluid. Specific granules contain lactoferrin, lysozyme, vitamin B12 binding protein and elastase.
1 Q14974 (/TAS)
NLS-dependent protein nuclear import complex GO:0042564
A protein complex which usually consists of three components, e.g. in Xenopus, the importin alpha and beta-subunits and any protein which has a nuclear localization sequence (NLS). The complex acts to import proteins with an NLS into the nucleus through a nuclear pore.
1 Q06142 (/IMP)
P granule GO:0043186
A small cytoplasmic, non-membranous RNA/protein complex aggregates in the primordial germ cells of many higher eukaryotes.
1 O18388 (/IPI)
Protein complex GO:0043234
A stable macromolecular complex composed (only) of two or more polypeptide subunits along with any covalently attached molecules (such as lipid anchors or oligosaccharide) or non-protein prosthetic groups (such as nucleotides or metal ions). Prosthetic group in this context refers to a tightly bound cofactor. The component polypeptide subunits may be identical.
1 P70168 (/IDA)
Extracellular exosome GO:0070062
A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
1 Q14974 (/IDA)
Extracellular exosome GO:0070062
A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
1 P70168 (/ISO)
Endoplasmic reticulum tubular network GO:0071782
A subcompartment of the endoplasmic reticulum consisting of tubules having membranes with high curvature in cross-section.
1 Q14974 (/IDA)
Endoplasmic reticulum tubular network GO:0071782
A subcompartment of the endoplasmic reticulum consisting of tubules having membranes with high curvature in cross-section.
1 P70168 (/ISO)
Ficolin-1-rich granule lumen GO:1904813
Any membrane-enclosed lumen that is part of a ficolin-1-rich granule.
1 Q14974 (/TAS)
Mitotic spindle midzone GO:1990023
The area in the center of the anaphase spindle consisting of microtubules, microtubule bundling factors and kinesin motors where the spindle microtubules from opposite poles overlap in an antiparallel manner.
1 O13864 (/IDA)
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