ccnk-1
C. elegans
Cyclin-like domain-containing protein
What the model saw
Gene: ccnk-1 Organism: Caenorhabditis elegans Known functions: Cyclin-like domain-containing protein. cyclin-dependent protein serine/threonine kinase activator activity. cyclin-dependent protein serine/threonine kinase regulator activity.
View unredacted entry
Cyclin-like domain-containing protein. cyclin-dependent protein serine/threonine kinase activator activity. cyclin-dependent protein serine/threonine kinase regulator activity.
Solver output
Cyclin K (ccnk-1) is the C. elegans ortholog of Cyclin K, which in other organisms partners with CDK9 and CDK12/13 to regulate transcription-coupled DNA damage response and RNA Pol II-mediated gene expression. CDK12/Cyclin K complexes are critical for maintaining genomic integrity by promoting transcription of DNA damage response genes (e.g., BRCA1, ATM, FANCD2). Loss of this cyclin-CDK axis impairs the DNA damage response, leading to accumulation of genomic lesions. In the context of aging, failure to maintain genomic stability is a primary hallmark, and cyclin K-dependent CDK activity supports the transcriptional programs needed to repair DNA damage. Thus, normal function of ccnk-1 as a CDK activator/regulator is expected to oppose genomic instability and promote longevity, though the confidence is moderate given that some CDK-activating cyclins can also drive cell cycle progression in ways that could be context-dependent.
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 predicted pro_longevity for ccnk-1, but the mechanistic reasoning is speculative and not well-grounded in C. elegans-specific literature. The model extrapolates from mammalian Cyclin K/CDK12 biology (BRCA1, ATM, FANCD2 transcription) to C. elegans without evidence that this is the actual mechanism in worms. The actual pro-longevity role of ccnk-1 in C. elegans is more likely related to its role in regulating transcription or cell cycle in the context of C. elegans aging pathways (e.g., possibly through DAF-16/insulin signaling or stress response), not specifically through the CDK12-mediated DNA damage response genes cited. The confidence of 0.55 is appropriately modest, but the mechanistic class of "genomic_instability" and the specific pathway claims are not well-supported for this organism. The answer is correct but the reasoning is largely speculative mammalian extrapolation.
Raw API responses
solver
{
"reasoning": "Cyclin K (ccnk-1) is the C. elegans ortholog of Cyclin K, which in other organisms partners with CDK9 and CDK12/13 to regulate transcription-coupled DNA damage response and RNA Pol II-mediated gene expression. CDK12/Cyclin K complexes are critical for maintaining genomic integrity by promoting transcription of DNA damage response genes (e.g., BRCA1, ATM, FANCD2). Loss of this cyclin-CDK axis impairs the DNA damage response, leading to accumulation of genomic lesions. In the context of aging, failure to maintain genomic stability is a primary hallmark, and cyclin K-dependent CDK activity supports the transcriptional programs needed to repair DNA damage. Thus, normal function of ccnk-1 as a CDK activator/regulator is expected to oppose genomic instability and promote longevity, though the confidence is moderate given that some CDK-activating cyclins can also drive cell cycle progression in ways that could be context-dependent.",
"confidence": 0.55,
"key_pathways": [
"CDK12/CDK9-Cyclin K transcription-coupled DNA damage response",
"RNA Pol II C-terminal domain phosphorylation",
"genomic stability maintenance"
],
"mechanism_class": "genomic_instability",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model correctly predicted pro_longevity for ccnk-1, but the mechanistic reasoning is speculative and not well-grounded in C. elegans-specific literature. The model extrapolates from mammalian Cyclin K/CDK12 biology (BRCA1, ATM, FANCD2 transcription) to C. elegans without evidence that this is the actual mechanism in worms. The actual pro-longevity role of ccnk-1 in C. elegans is more likely related to its role in regulating transcription or cell cycle in the context of C. elegans aging pathways (e.g., possibly through DAF-16/insulin signaling or stress response), not specifically through the CDK12-mediated DNA damage response genes cited. The confidence of 0.55 is appropriately modest, but the mechanistic class of \"genomic_instability\" and the specific pathway claims are not well-supported for this organism. The answer is correct but the reasoning is largely speculative mammalian extrapolation.",
"failure_mode": "right_answer_wrong_reasoning",
"answer_correct": true,
"mechanism_correct": false,
"reasoning_quality": 2,
"ground_truth_questionable": false
}