mortality/aging
• incomplete penetrance; reduced numbers of homozygous mutants at weaning (19%, rather than 25%)
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behavior/neurological
• reduced freezing response in long term test of contextual fear conditioning
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• less anxious, assessed by open field, zero-maze, elevated plus maze and dark-light box tests
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• increased locomotor activity in both horizontal and vertical planes
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• increased locomotor activity in both horizontal and vertical planes
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nervous system
• no LTP in mossy fibers
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