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Case Reports
. 2020 Feb;36(2):179-182.
doi: 10.1007/s12264-019-00430-4. Epub 2019 Sep 17.

A De Novo Variant Identified in the PPP2R1A Gene in an Infant Induces Neurodevelopmental Abnormalities

Affiliations
Case Reports

A De Novo Variant Identified in the PPP2R1A Gene in an Infant Induces Neurodevelopmental Abnormalities

Yanghui Zhang et al. Neurosci Bull. 2020 Feb.
No abstract available

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Conflict of interest statement

The authors claim no conflicts of interest.

Figures

Fig. 1
Fig. 1
Clinical and genetic data of the patient. A Brain MRI showing agenesis of the corpus callosum (a), enlargement of the ventricular system, and retardation of myelination of the white matter (b). B Brainstem auditory evoked potentials showing that the I, III, and V waves were hardly detectable and the latency to each wave was prolonged on the left side; the waveform of the V wave was poorly differentiated with a normal range of latency to each wave on the right side; the auditory brainstem response thresholds were increased. C EEG demonstrating synchronous discharges of high-amplitude δ-waves spreading from the frontal lobe.
Fig. 2
Fig. 2
Pathogenic variant of PPP2R1A and its protein structure. A The six reported variants (E64K [12], P179L [4], M180T [13], R182W [4], S219L, and R258H [5]) and their relative locations in the causative gene and its encoded protein. We report a likely pathogenic variant at S219 (red). B (a) Structure of PPP2R1A interacting with the regulatory B subunit. (b) Enlargement showing the causative amino-acids located in the center of this interaction.

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