Bmal1
M. musculus
basic helix-loop-helix ARNT like 1
What the model saw
Gene: Bmal1 Organism: Mus musculus Known functions: basic helix-loop-helix ARNT like 1. basic helix-loop-helix ARNT-like protein 1. DNA binding. DNA-binding transcription activator activity, RNA polymerase II-specific. DNA-binding transcription factor activity. DNA-binding transcription factor activity, RNA polymerase II-specific. E-box binding. Hsp90 protein binding. RNA polymerase II cis-regulatory region sequence-specific DNA binding. aryl hydrocarbon receptor binding. bHLH transcription factor binding. protein binding. protein dimerization activity. protein heterodimerization activity. sequence-specific DNA binding. sequence-specific double-stranded DNA binding. transcription cis-regulatory region binding. transcription coregulator activity.
View unredacted entry
basic helix-loop-helix ARNT like 1. basic helix-loop-helix ARNT-like protein 1. DNA binding. DNA-binding transcription activator activity, RNA polymerase II-specific. DNA-binding transcription factor activity. DNA-binding transcription factor activity, RNA polymerase II-specific. E-box binding. Hsp90 protein binding. RNA polymerase II cis-regulatory region sequence-specific DNA binding. aryl hydrocarbon receptor binding. bHLH transcription factor binding. protein binding. protein dimerization activity. protein heterodimerization activity. sequence-specific DNA binding. sequence-specific double-stranded DNA binding. transcription cis-regulatory region binding. transcription coregulator activity.
Solver output
BMAL1 is the master transcriptional activator of the circadian clock, forming heterodimers (via its bHLH-PAS domain) with CLOCK to bind E-box elements and drive rhythmic gene expression across virtually all tissues. Loss of Bmal1 in mice causes premature aging phenotypes including sarcopenia, cataracts, organ pathology, and shortened lifespan, establishing it as a pro-longevity gene. Its transcriptional control of circadian output coordinates metabolic homeostasis, redox cycling (via Nrf2 and SIRT1 pathways), and DNA damage responses, all of which deteriorate with age. Circadian disruption driven by BMAL1 loss leads to epigenetic dysregulation—altered chromatin accessibility and histone modification rhythms—that accelerates aging hallmarks. The Hsp90 and aryl hydrocarbon receptor interactions further link BMAL1 to proteostasis and xenobiotic stress responses, reinforcing its broad cytoprotective role.
GenAge curators classify each gene's normal function as promoting (Pro-Longevity) or opposing (Anti-Longevity) longevity, based on synthesis across studies. Loss-of-function effects can vary from this depending on the manipulation.
Advisor judgment
The model correctly identified Bmal1 as pro_longevity with high confidence (0.85). The mechanistic reasoning is accurate and well-detailed: BMAL1 is indeed the master circadian transcriptional activator, Bmal1 knockout mice show premature aging phenotypes and shortened lifespan, and the downstream pathways (SIRT1, Nrf2, metabolic homeostasis) are correctly described. The classification as "epigenetic_alterations" is a reasonable secondary mechanism, though the primary mechanism is circadian clock transcriptional regulation. The reasoning about E-box binding, CLOCK heterodimerization, and the connection to aging hallmarks is all accurate. Overall an excellent prediction.
Raw API responses
solver
{
"reasoning": "BMAL1 is the master transcriptional activator of the circadian clock, forming heterodimers (via its bHLH-PAS domain) with CLOCK to bind E-box elements and drive rhythmic gene expression across virtually all tissues. Loss of Bmal1 in mice causes premature aging phenotypes including sarcopenia, cataracts, organ pathology, and shortened lifespan, establishing it as a pro-longevity gene. Its transcriptional control of circadian output coordinates metabolic homeostasis, redox cycling (via Nrf2 and SIRT1 pathways), and DNA damage responses, all of which deteriorate with age. Circadian disruption driven by BMAL1 loss leads to epigenetic dysregulation—altered chromatin accessibility and histone modification rhythms—that accelerates aging hallmarks. The Hsp90 and aryl hydrocarbon receptor interactions further link BMAL1 to proteostasis and xenobiotic stress responses, reinforcing its broad cytoprotective role.",
"confidence": 0.85,
"key_pathways": [
"Circadian clock transcriptional activation (BMAL1-CLOCK/E-box)",
"SIRT1-BMAL1 deacetylation and metabolic regulation",
"Nrf2-mediated antioxidant response downstream of circadian output"
],
"mechanism_class": "epigenetic_alterations",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model correctly identified Bmal1 as pro_longevity with high confidence (0.85). The mechanistic reasoning is accurate and well-detailed: BMAL1 is indeed the master circadian transcriptional activator, Bmal1 knockout mice show premature aging phenotypes and shortened lifespan, and the downstream pathways (SIRT1, Nrf2, metabolic homeostasis) are correctly described. The classification as \"epigenetic_alterations\" is a reasonable secondary mechanism, though the primary mechanism is circadian clock transcriptional regulation. The reasoning about E-box binding, CLOCK heterodimerization, and the connection to aging hallmarks is all accurate. Overall an excellent prediction.",
"failure_mode": "correct",
"answer_correct": true,
"mechanism_correct": true,
"reasoning_quality": 5,
"ground_truth_questionable": false
}