BP

GO:0000209

protein polyubiquitination

Addition of multiple ubiquitin groups to a protein, forming a ubiquitin chain.

IDA|IMP

BP

GO:0006511

ubiquitin-dependent protein catabolic process

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 a ubiquitin group, or multiple ubiquitin groups, to the protein.

IMP

BP

GO:0006928

movement of cell or subcellular component

The directed, self-propelled movement of a cell or subcellular component without the involvement of an external agent such as a transporter or a pore.

TAS

BP

GO:0007165

signal transduction

The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.

TAS

BP

GO:0007568

aging

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).

IEA

BP

GO:0007611

learning or memory

The acquisition and processing of information and/or the storage and retrieval of this information over time.

IEA

BP

GO:0030433

ER-associated ubiquitin-dependent protein catabolic process

The chemical reactions and pathways resulting in the breakdown of proteins transported from the endoplasmic reticulum and targeted to cytoplasmic proteasomes for degradation. This process acts on misfolded proteins as well as in the regulated degradation of correctly folded proteins.

IDA|IMP|TAS

BP

GO:0030968

endoplasmic reticulum unfolded protein response

The series of molecular signals generated as a consequence of the presence of unfolded proteins in the endoplasmic reticulum (ER) or other ER-related stress; results in changes in the regulation of transcription and translation.

IMP

BP

GO:0032092

positive regulation of protein binding

Any process that activates or increases the frequency, rate or extent of protein binding.

IMP

BP

GO:0036503

ERAD pathway

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 modifications necessary for correct substrate transfer (e.g. ubiquitination), transport of the protein to the proteasome, and ends with degradation of the protein by the cytoplasmic proteasome.

IC

BP

GO:0042787

protein ubiquitination involved in ubiquitin-dependent protein catabolic process

The process in which a ubiquitin group, or multiple groups, are covalently attached to the target protein, thereby initiating the degradation of that protein.

IBA

BP

GO:0051259

protein oligomerization

The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of component monomers; protein oligomers may be composed of different or identical monomers. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer.

IDA

BP

GO:0051865

protein autoubiquitination

The ubiquitination by a protein of one or more of its own amino acid residues, or residues on an identical protein. Ubiquitination occurs on the lysine residue by formation of an isopeptide crosslink.

IDA

BP

GO:0070936

protein K48-linked ubiquitination

A protein ubiquitination process in which a polymer of ubiquitin, formed by linkages between lysine residues at position 48 of the ubiquitin monomers, is added to a protein. K48-linked ubiquitination targets the substrate protein for degradation.

IDA

CC

GO:0000838

Hrd1p ubiquitin ligase ERAD-M complex

A multiprotein complex that recognizes and ubiquitinates proteins with misfolded membrane domains during ER-associated protein degradation (ERAD). In S. cerevisiae, this complex contains the ubiquitin ligase Hrd1p.

IBA

CC

GO:0005634

nucleus

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.

IEA

CC

GO:0005789

endoplasmic reticulum membrane

The lipid bilayer surrounding the endoplasmic reticulum.

IDA

CC

GO:0016020

membrane

A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.

IDA

CC

GO:0016021

integral component of membrane

The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.

NAS

CC

GO:0030176

integral component of endoplasmic reticulum membrane

The component of the endoplasmic reticulum membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.

IDA

CC

GO:0030425

dendrite

A neuron projection that has a short, tapering, often branched, morphology, receives and integrates signals from other neurons or from sensory stimuli, and conducts a nerve impulse towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body.

IEA

CC

GO:0030426

growth cone

The migrating motile tip of a growing nerve cell axon or dendrite.

IEA

CC

GO:0036513

Derlin-1 retrotranslocation complex

A protein complex that functions in the retrotranslocation step of ERAD (ER-associated protein degradation), and includes at its core Derlin-1 oligomers forming a retrotranslocation channel.

IDA

CC

GO:0043025

neuronal cell body

The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites.

IEA

CC

GO:0043234

protein complex

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.

IDA

CC

GO:0048471

perinuclear region of cytoplasm

Cytoplasm situated near, or occurring around, the nucleus.

IDA

MF

GO:0004842

ubiquitin-protein transferase activity

Catalysis of the transfer of ubiquitin from one protein to another via the reaction X-Ub + Y --> Y-Ub + X, where both X-Ub and Y-Ub are covalent linkages.

IDA|IMP

MF

GO:0004872

receptor activity

Combining with an extracellular or intracellular messenger to initiate a change in cell activity.

IPI

MF

GO:0005515

protein binding

Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).

IPI

MF

GO:0008270

zinc ion binding

Interacting selectively and non-covalently with zinc (Zn) ions.

IEA

MF

GO:0016874

ligase activity

Catalysis of the joining of two substances, or two groups within a single molecule, with the concomitant hydrolysis of the diphosphate bond in ATP or a similar triphosphate.

IEA

MF

GO:0030674

protein binding, bridging

The binding activity of a molecule that brings together two or more protein molecules, or a protein and another macromolecule or complex, through a selective, non-covalent, often stoichiometric interaction, permitting those molecules to function in a coordinated way.

IMP

MF

GO:0034450

ubiquitin-ubiquitin ligase activity

Isoenergetic transfer of ubiquitin from one protein to an existing ubiquitin chain via the reaction X-ubiquitin + Y-ubiquitin -> Y-ubiquitin-ubiquitin + X, where both the X-ubiquitin and Y-ubiquitin-ubiquitin linkages are thioester bonds between the C-terminal glycine of ubiquitin and a sulfhydryl side group of a cysteine residue.

IDA

MF

GO:0051087

chaperone binding

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.

IPI

MF

GO:0061630

ubiquitin protein ligase activity

Catalysis of the transfer of ubiquitin to a substrate protein via the reaction X-ubiquitin + S --> X + S-ubiquitin, where X is either an E2 or E3 enzyme, the X-ubiquitin linkage is a thioester bond, and the S-ubiquitin linkage is an isopeptide bond between the C-terminal glycine of ubiquitin and the epsilon-amino group of lysine residues in the substrate. Note that this may include the extension of ubiquitin chains.

IDA

MF

GO:1904264

ubiquitin protein ligase activity involved in ERAD pathway

Any ubiquitin protein ligase activity that is involved in the ERAD pathway (the targeting of endoplasmic reticulum (ER)-resident proteins for degradation by the cytoplasmic proteasome).

TAS

MF

GO:1904288

BAT3 complex binding

Interacting selectively and non-covalently with a BAT3 complex.

IDA|IPI

MF

GO:1990381

ubiquitin-specific protease binding

Interacting selectively and non-covalently with a ubiquitin-specific protease.

IPI