Human Phenotype Ontology 
..Starting node
Persistent asymmetrical tonic neck reflex (HP:0032549)help
Term ID: 32549
Name: Persistent asymmetrical tonic neck reflex
Synonym: Persistent fencer's reflex; Tonic neck reflex asymmetrical and persistent
Definition: Persistence beyond the normal age (roughly the first half of the first year of life) of the asymmetric tonic neck reflex (ATNR), which is an easily elicited primitive reflex in the immediate newborn period. The ATNR refers to the phenomenon whereby when the face of an infant is turned to one side, the ipsilateral arm and leg extend and the contralateral arm and leg flex. This posture has been compared to a typical posture of fencers.
Reference: HP:0032549
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InputHPO IDHPO termDistanceGeneGene id entrezHGNC IDDiseaseIdDiseaseNameFrequencyOnsetHGMD variantsClinVar variants
HPO disease - gene - phenotype typical associations:
HPO disease - gene - phenotype less frequent non-typical associations:
HP:0032549HP:0032549Persistent asymmetrical tonic neck reflex0 CL E G H

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Human Phenotype Ontology(HPO) is developed by the Human Phenotype Ontology Consortium. The version used here is December 15 2022 release.