DAP3 Antibody / Mitochondrial Apoptosis Marker (R34882)

Description

Death-associated protein 3 (DAP3) is a mitochondrial ribosome-associated protein encoded by the DAP3 gene and involved in apoptotic signaling, mitochondrial protein synthesis, and regulation of cellular stress responses. DAP3 Antibody / Mitochondrial Apoptosis Marker is useful for studying programmed cell death pathways, mitochondrial biology, ribosomal function, and cellular stress signaling. DAP3 belongs to the mitochondrial ribosomal protein family and functions within the small subunit of the mitochondrial ribosome where it contributes to mitochondrial translation and maintenance of respiratory function.

DAP3 antibody, also referred to as Death-associated protein 3 antibody, MRPS29 antibody, or DAP-3 antibody in the literature, recognizes a protein originally identified through its involvement in interferon gamma-induced cell death pathways. DAP3 is predominantly localized to mitochondria, where it participates in apoptotic signaling cascades and mitochondrial homeostasis. In addition to its role in mitochondrial ribosomal activity, DAP3 has been linked to extrinsic apoptosis signaling mediated through death receptors including Fas and TRAIL receptor pathways.

DAP3 contributes to regulation of apoptosis by interacting with components of mitochondrial and death receptor-associated signaling complexes. Studies have associated DAP3 with caspase activation, mitochondrial membrane dysfunction, and pro-apoptotic signaling under conditions of cellular stress or cytokine stimulation. The protein has also been implicated in tumor suppression, anoikis regulation, and modulation of cellular sensitivity to apoptotic stimuli. Because mitochondrial dysfunction and apoptosis are central to cancer biology, neurodegeneration, and inflammatory disease, DAP3 remains an important target in studies of stress-induced cell death mechanisms.

Within mitochondria, DAP3 functions as a component of the mitochondrial small ribosomal subunit and supports translation of mitochondrially encoded respiratory chain proteins. Proper DAP3 activity is therefore important for oxidative phosphorylation, mitochondrial integrity, and energy metabolism. Disruption of DAP3 expression has been associated with impaired mitochondrial function, altered respiratory activity, and changes in cellular metabolic adaptation. The protein additionally participates in pathways connected to interferon signaling, innate immune regulation, and stress-responsive transcriptional programs.

DAP3 is encoded on human chromosome 1q22 and produces a GTP-binding mitochondrial protein containing structural features characteristic of mitochondrial ribosomal components. The protein localizes primarily within the mitochondrial matrix but may also participate in signaling complexes linked to apoptotic activation at other intracellular sites during cellular stress responses. In immunofluorescence studies, DAP3 expression commonly demonstrates punctate cytoplasmic staining patterns consistent with mitochondrial localization.

This goat polyclonal DAP3 antibody has been supported using knockout-validated western blot and immunofluorescence approaches to confirm selective target detection in research applications. Western blot analysis demonstrates reduction or loss of the expected DAP3 signal following gene knockout, while knockout immunofluorescence analysis supports antibody specificity for mitochondrial-associated DAP3 staining patterns. These validation approaches provide additional confidence for studies involving apoptosis signaling, mitochondrial regulation, and stress-response biology.

Explore our Knockdown Validated Antibodies page for additional antibodies supported by gene silencing or knockout validation strategies to help confirm target-specific signal detection in western blot, immunofluorescence, and related research applications.

Application Notes

Optimal dilution of the DAP3 Antibody / Mitochondrial Apoptosis Marker should be determined by the researcher.

1. This DAP3 antibody will detect isoforms 1, 2 and 3.

Immunogen

Amino acids NPSLLERHCAYL were used as the immunogen for this DAP3 antibody. This sequence is common to isoforms 1, 2 and 3.

Storage

Aliquot and store the DAP3 antibody at -20oC.

Alternate Names

Death-associated protein 3 antibody, MRPS29 antibody, DAP-3 antibody, Mitochondrial ribosomal protein S29 antibody, DAP3 apoptosis marker antibody