The Claim
The A554V mutation in DNA methyltransferase 1 (DNMT1) enhances DNA binding affinity by approximately 8-fold, decreasing the dissociation constant (Kd) from 4.6 ± 0.5 μM in the wild-type enzyme to 0.55 ± 0.05 μM in the mutant enzyme.
What the research says
Roughly balanced
Support and challenge are close. The picture may shift as more studies come in.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Scientists found that a specific genetic change called A554V in a protein called DNMT1 makes it stick to DNA about 8 times tighter than normal.
See the scientific wording
The A554V mutation in DNMT1 increases DNA binding affinity by approximately 8-fold, reducing the dissociation constant (Kd) from 4.6 ± 0.5 μM in wild-type to 0.55 ± 0.05 μM in the mutant enzyme
What the research says
1 studyStudy: Disease-Associated Mutation A554V Disrupts Normal Autoinhibition of DNMT1
The study directly confirms that the A554V mutation in DNMT1 increases DNA binding affinity by about 8-fold, exactly matching the claim. The researchers tested this specific mutation and found it reduces the dissociation constant from 4.6 μM to 0.55 μM, which is approximately an 8-fold increase in binding affinity.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
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