OPA1
Gene Ontology Biological Process
- GTP catabolic process [TAS]
- axon transport of mitochondrion [TAS]
- cellular senescence [IDA]
- inner mitochondrial membrane organization [IDA]
- mitochondrial fission [TAS]
- mitochondrial fusion [IDA, IMP, TAS]
- mitochondrial genome maintenance [IMP]
- mitochondrion organization [IMP, NAS]
- negative regulation of endoplasmic reticulum stress-induced intrinsic apoptotic signaling pathway [IGI]
- negative regulation of release of cytochrome c from mitochondria [IMP]
- visual perception [IMP]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
BNIP3
Gene Ontology Biological Process
- apoptotic process [IPI]
- cell death [ISS]
- cellular response to cobalt ion [IMP]
- cellular response to hypoxia [IMP]
- cellular response to mechanical stimulus [IEP]
- defense response to virus [IDA]
- granzyme-mediated apoptotic signaling pathway [IDA]
- intrinsic apoptotic signaling pathway in response to hypoxia [IMP]
- mitochondrial fragmentation involved in apoptotic process [IDA]
- mitochondrial outer membrane permeabilization [IDA]
- mitochondrial protein catabolic process [IMP]
- negative regulation of apoptotic process [TAS]
- negative regulation of membrane potential [IDA]
- negative regulation of mitochondrial fusion [IDA]
- neuron apoptotic process [ISS]
- positive regulation of apoptotic process [IDA]
- positive regulation of autophagy [TAS]
- positive regulation of mitochondrial fission [IDA]
- positive regulation of programmed cell death [IDA]
- positive regulation of protein complex disassembly [IDA]
- positive regulation of release of cytochrome c from mitochondria [IDA]
- reactive oxygen species metabolic process [IDA]
- regulation of mitochondrial membrane permeability [IDA]
- response to hypoxia [ISS]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Affinity Capture-Western
An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner identified by Western blot with a specific polyclonal antibody or second epitope tag. This category is also used if an interacting protein is visualized directly by dye stain or radioactivity. Note that this differs from any co-purification experiment involving affinity capture in that the co-purification experiment involves at least one extra purification step to get rid of potential contaminating proteins.
Publication
The BH3-only Bnip3 binds to the dynamin Opa1 to promote mitochondrial fragmentation and apoptosis by distinct mechanisms.
Opa1 modulates mitochondrial fusion, cristae structure and apoptosis. The relationships between these functions and autosomal dominant optic atrophy, caused by mutations in Opa1, are poorly defined. We show that Bnip3 interacts with Opa1, leading to mitochondrial fragmentation and apoptosis. Fission is due to inhibition of Opa1-mediated fusion and is counteracted by Opa1 in an Mfn1-dependent manner. Bnip3-Opa1 interaction is necessary ... [more]
Throughput
- Low Throughput
Related interactions
| Interaction | Experimental Evidence Code | Dataset | Throughput | Score | Curated By | Notes |
|---|---|---|---|---|---|---|
| BNIP3 OPA1 | Reconstituted Complex Reconstituted Complex An interaction is detected between purified proteins in vitro. | Low | - | BioGRID | - | |
| OPA1 BNIP3 | Two-hybrid Two-hybrid Bait protein expressed as a DNA binding domain (DBD) fusion and prey expressed as a transcriptional activation domain (TAD) fusion and interaction measured by reporter gene activation. | Low | - | BioGRID | - |
Curated By
- BioGRID