Activating Compound | Comment | Organism | Structure |
---|---|---|---|
additional information | serine/threonine kinases Akt1 and Akt2 phosphorylate mitochondria-released HtrA2/Omi on serine 212 in vivo and in vitro, which results in attenuation of its serine protease activity and pro-apoptotic function. Akt phosphorylation of HtrA2/Omi at serine 212 is a critical event for attenuation of HtrA2/Omi cleaving X-linked inhibitor of apoptosis protein, although it does not affect HtrA2/Omi-X-linked inhibitor of apoptosis protein complex formation | Homo sapiens |
Cloned (Comment) | Organism |
---|---|
HtrA2/Omi cDNA cloned into pEGFP-C3 at KpnI/XbaI sites. HeLa cells transfected with GFP-fused premature or mature HtrA2/Omi together with or without wild-type and constitutively active Akt. HEK-293 cells transfected with pcDNA3-Myc-HtrA2/Omi together with or without wild-type and constitutively active Akt | Homo sapiens |
Protein Variants | Comment | Organism |
---|---|---|
S212A | mutant with abolished HtrA2/Omi phosphorylation by Akt. It retains its serine protease activity and induces more apoptosis as compared with wild-type HtrA2/Omi | Homo sapiens |
S212D | mutant mimicking phosphorylation. It has lost the protease activity and fails to induce programmed cell death | Homo sapiens |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
additional information | Akt abrogates HtrA2/Omi pro-apoptotic function through phosphorylation of serine 212 in cytoplasm and inhibition of its release from the mitochondria in response to cisplatin treatment. Caspase inhibitor z-VAD-FMK reduces the mature HtrA2/Omi-induced cell death by ca. 45% | Homo sapiens |
Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
cytoplasm | - |
Homo sapiens | 5737 | - |
mitochondrion | - |
Homo sapiens | 5739 | - |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Homo sapiens | - |
- |
- |
Purification (Comment) | Organism |
---|---|
- |
Homo sapiens |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
OV2008 cell | - |
Homo sapiens | - |
OVCAR-3 cell | - |
Homo sapiens | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
beta-casein + H2O | - |
Homo sapiens | ? | - |
? | |
X-linked inhibitor of apoptosis protein + H2O | - |
Homo sapiens | ? | - |
? |
Synonyms | Comment | Organism |
---|---|---|
HtrA2/Omi | - |
Homo sapiens |
serine protease HtrA2/Omi | - |
Homo sapiens |