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:

"
RAP 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: Alpha-2-macroglobulin receptor-associated protein

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
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).
2 P30533 (/IPI) Q99068 (/IPI)
Lipase binding GO:0035473
Interacting selectively and non-covalently with any lipase.
2 P55302 (/ISO) P55302 (/ISO)
Receptor antagonist activity GO:0048019
The activity of a gene product that interacts with a receptor to decrease the ability of the receptor agonist to bind and activate the receptor.
2 P55302 (/ISO) P55302 (/ISO)
Low-density lipoprotein particle receptor binding GO:0050750
Interacting selectively and non-covalently with a low-density lipoprotein receptor.
2 P55302 (/IPI) P55302 (/IPI)
Low-density lipoprotein particle receptor binding GO:0050750
Interacting selectively and non-covalently with a low-density lipoprotein receptor.
2 P55302 (/ISO) P55302 (/ISO)
Very-low-density lipoprotein particle receptor binding GO:0070326
Interacting selectively and non-covalently with a very-low-density lipoprotein receptor.
2 P55302 (/ISO) P55302 (/ISO)
Amyloid-beta binding GO:0001540
Interacting selectively and non-covalently with amyloid-beta peptide/protein and/or its precursor.
1 P30533 (/TAS)
Signaling receptor binding GO:0005102
Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
1 P30533 (/TAS)
Lipase binding GO:0035473
Interacting selectively and non-covalently with any lipase.
1 Q99068 (/IPI)
Receptor antagonist activity GO:0048019
The activity of a gene product that interacts with a receptor to decrease the ability of the receptor agonist to bind and activate the receptor.
1 P30533 (/IDA)
Receptor antagonist activity GO:0048019
The activity of a gene product that interacts with a receptor to decrease the ability of the receptor agonist to bind and activate the receptor.
1 P30533 (/TAS)
Low-density lipoprotein particle receptor binding GO:0050750
Interacting selectively and non-covalently with a low-density lipoprotein receptor.
1 P30533 (/IDA)
Low-density lipoprotein particle receptor binding GO:0050750
Interacting selectively and non-covalently with a low-density lipoprotein receptor.
1 Q99068 (/ISS)
Low-density lipoprotein particle receptor binding GO:0050750
Interacting selectively and non-covalently with a low-density lipoprotein receptor.
1 P30533 (/TAS)
Very-low-density lipoprotein particle receptor binding GO:0070326
Interacting selectively and non-covalently with a very-low-density lipoprotein receptor.
1 P30533 (/IPI)

There are 17 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
Regulation of receptor-mediated endocytosis GO:0048259
Any process that modulates the frequency, rate or extent of receptor mediated endocytosis, the uptake of external materials by cells, utilizing receptors to ensure specificity of transport.
3 P55302 (/ISS) P55302 (/ISS) Q99068 (/ISS)
Negative regulation of receptor internalization GO:0002091
Any process that stops, prevents, or reduces the frequency, rate or extent of receptor internalization.
2 P55302 (/ISO) P55302 (/ISO)
Negative regulation of very-low-density lipoprotein particle clearance GO:0010916
Any process that decreases the rate, frequency or extent of very-low-density lipoprotein particle clearance. Very-low-density lipoprotein particle clearance is the process in which a very-low-density lipoprotein particle is removed from the blood via receptor-mediated endocytosis and its constituent parts degraded.
2 P55302 (/ISO) P55302 (/ISO)
Negative regulation of protein binding GO:0032091
Any process that stops, prevents, or reduces the frequency, rate or extent of protein binding.
2 P55302 (/ISO) P55302 (/ISO)
Regulation of receptor-mediated endocytosis GO:0048259
Any process that modulates the frequency, rate or extent of receptor mediated endocytosis, the uptake of external materials by cells, utilizing receptors to ensure specificity of transport.
2 P55302 (/ISO) P55302 (/ISO)
Negative regulation of cell death GO:0060548
Any process that decreases the rate or frequency of cell death. Cell death is the specific activation or halting of processes within a cell so that its vital functions markedly cease, rather than simply deteriorating gradually over time, which culminates in cell death.
2 P55302 (/ISO) P55302 (/ISO)
Amyloid-beta clearance by transcytosis GO:0150093
The process in which amyloid-beta is removed from extracellular brain regions by cell surface receptor-mediated endocytosis, followed by transcytosis across the blood-brain barrier.
2 P55302 (/ISO) P55302 (/ISO)
Negative regulation of amyloid-beta clearance GO:1900222
Any process that stops, prevents or reduces the frequency, rate or extent of amyloid-beta clearance.
2 P55302 (/ISO) P55302 (/ISO)
Negative regulation of receptor internalization GO:0002091
Any process that stops, prevents, or reduces the frequency, rate or extent of receptor internalization.
1 P30533 (/IGI)
Negative regulation of very-low-density lipoprotein particle clearance GO:0010916
Any process that decreases the rate, frequency or extent of very-low-density lipoprotein particle clearance. Very-low-density lipoprotein particle clearance is the process in which a very-low-density lipoprotein particle is removed from the blood via receptor-mediated endocytosis and its constituent parts degraded.
1 P30533 (/IDA)
Negative regulation of protein binding GO:0032091
Any process that stops, prevents, or reduces the frequency, rate or extent of protein binding.
1 P30533 (/IDA)
Regulation of receptor-mediated endocytosis GO:0048259
Any process that modulates the frequency, rate or extent of receptor mediated endocytosis, the uptake of external materials by cells, utilizing receptors to ensure specificity of transport.
1 P30533 (/IDA)
Negative regulation of cell death GO:0060548
Any process that decreases the rate or frequency of cell death. Cell death is the specific activation or halting of processes within a cell so that its vital functions markedly cease, rather than simply deteriorating gradually over time, which culminates in cell death.
1 P30533 (/IGI)
Amyloid-beta clearance by transcytosis GO:0150093
The process in which amyloid-beta is removed from extracellular brain regions by cell surface receptor-mediated endocytosis, followed by transcytosis across the blood-brain barrier.
1 P30533 (/IMP)
Extracellular negative regulation of signal transduction GO:1900116
Any negative regulation of signal transduction that takes place in extracellular region.
1 P30533 (/TAS)
Negative regulation of amyloid-beta clearance GO:1900222
Any process that stops, prevents or reduces the frequency, rate or extent of amyloid-beta clearance.
1 P30533 (/IGI)
Positive regulation of amyloid-beta clearance GO:1900223
Any process that activates or increases the frequency, rate or extent of amyloid-beta clearance.
1 P30533 (/TAS)

There are 27 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
Endosome GO:0005768
A vacuole to which materials ingested by endocytosis are delivered.
3 P55302 (/ISS) P55302 (/ISS) Q99068 (/ISS)
Endoplasmic reticulum-Golgi intermediate compartment GO:0005793
A complex system of membrane-bounded compartments located between endoplasmic reticulum (ER) and the Golgi complex, with a distinctive membrane protein composition; involved in ER-to-Golgi and Golgi-to-ER transport.
3 P55302 (/ISS) P55302 (/ISS) Q99068 (/ISS)
Golgi apparatus GO:0005794
A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.
3 P55302 (/ISS) P55302 (/ISS) Q99068 (/ISS)
Cis-Golgi network GO:0005801
The network of interconnected tubular and cisternal structures located at the convex side of the Golgi apparatus, which abuts the endoplasmic reticulum.
3 P55302 (/ISS) P55302 (/ISS) Q99068 (/ISS)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
2 P55302 (/ISO) P55302 (/ISO)
Endosome GO:0005768
A vacuole to which materials ingested by endocytosis are delivered.
2 P55302 (/ISO) P55302 (/ISO)
Endoplasmic reticulum GO:0005783
The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).
2 P55302 (/ISO) P55302 (/ISO)
Rough endoplasmic reticulum GO:0005791
The rough (or granular) endoplasmic reticulum (ER) has ribosomes adhering to the outer surface; the ribosomes are the site of translation of the mRNA for those proteins which are either to be retained within the cisternae (ER-resident proteins), the proteins of the lysosomes, or the proteins destined for export from the cell. Glycoproteins undergo their initial glycosylation within the cisternae.
2 P55302 (/ISO) P55302 (/ISO)
Endoplasmic reticulum-Golgi intermediate compartment GO:0005793
A complex system of membrane-bounded compartments located between endoplasmic reticulum (ER) and the Golgi complex, with a distinctive membrane protein composition; involved in ER-to-Golgi and Golgi-to-ER transport.
2 P55302 (/ISO) P55302 (/ISO)
Golgi apparatus GO:0005794
A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.
2 P55302 (/ISO) P55302 (/ISO)
Cis-Golgi network GO:0005801
The network of interconnected tubular and cisternal structures located at the convex side of the Golgi apparatus, which abuts the endoplasmic reticulum.
2 P55302 (/ISO) P55302 (/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.
2 P55302 (/ISO) P55302 (/ISO)
Endomembrane system GO:0012505
A collection of membranous structures involved in transport within the cell. The main components of the endomembrane system are endoplasmic reticulum, Golgi bodies, vesicles, cell membrane and nuclear envelope. Members of the endomembrane system pass materials through each other or though the use of vesicles.
2 Q9VH64 (/HDA) Q9VH64 (/HDA)
Vesicle GO:0031982
Any small, fluid-filled, spherical organelle enclosed by membrane.
2 P55302 (/ISO) P55302 (/ISO)
Rough endoplasmic reticulum lumen GO:0048237
The volume enclosed by the membranes of the rough endoplasmic reticulum.
2 P30533 (/IDA) Q99068 (/IDA)
Rough endoplasmic reticulum lumen GO:0048237
The volume enclosed by the membranes of the rough endoplasmic reticulum.
2 P55302 (/ISO) P55302 (/ISO)
Rough endoplasmic reticulum lumen GO:0048237
The volume enclosed by the membranes of the rough endoplasmic reticulum.
2 P55302 (/ISS) P55302 (/ISS)
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 P30533 (/TAS)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q99068 (/IDA)
Endosome GO:0005768
A vacuole to which materials ingested by endocytosis are delivered.
1 P30533 (/IDA)
Endoplasmic reticulum GO:0005783
The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).
1 P30533 (/IDA)
Rough endoplasmic reticulum GO:0005791
The rough (or granular) endoplasmic reticulum (ER) has ribosomes adhering to the outer surface; the ribosomes are the site of translation of the mRNA for those proteins which are either to be retained within the cisternae (ER-resident proteins), the proteins of the lysosomes, or the proteins destined for export from the cell. Glycoproteins undergo their initial glycosylation within the cisternae.
1 Q99068 (/IDA)
Endoplasmic reticulum-Golgi intermediate compartment GO:0005793
A complex system of membrane-bounded compartments located between endoplasmic reticulum (ER) and the Golgi complex, with a distinctive membrane protein composition; involved in ER-to-Golgi and Golgi-to-ER transport.
1 P30533 (/IDA)
Golgi apparatus GO:0005794
A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.
1 P30533 (/IDA)
Cis-Golgi network GO:0005801
The network of interconnected tubular and cisternal structures located at the convex side of the Golgi apparatus, which abuts the endoplasmic reticulum.
1 P30533 (/IDA)
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 P30533 (/IDA)
Vesicle GO:0031982
Any small, fluid-filled, spherical organelle enclosed by membrane.
1 Q99068 (/IDA)