While this is true, the same protein, even the same gene, often serve different purposes in different species. So even if we figure a problem out in mice down t

While this is true, the same protein, even the same gene, often serve different purposes in different species. So even if we figure a problem out in mice down to the gene level it might not yield any results in humans. That's also the reason why the majority of drugs that have a positive outcome when trialed on mice don't yield positive results in human trials.