Human Phenotype Ontology 
Grandparent Node:
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Abnormal dark-adapted bright flash electroretinogram (HP:0030470)help
Parent Node:
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Abnormal amplitude of dark-adapted bright flash electroretinogram (HP:0030478)help
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Electronegative electroretinogram (HP:0007984)help
Term ID: 7984
Name: Electronegative electroretinogram
Synonym: Electronegative ERG; Electroretinogram: reduced b-wave amplitude; Reduced amplitude of dark-adapted bright flash electroretinogram b-wave; Reduced electroretinogram rod b-wave; Reduced ERG amplitude of b-wave
Definition: A dark-adapted bright flash electroretinogram in which the b-wave that is of markedly lower amplitude than the associated a-wave (source: Holder GE., Inherited Chorioretinal Dystrophies: A Textbook and Atlas; 2014; p.17; ISBN 978-3-540-69466-3).
Comments:
Reference: HP:0007984
Genes and Diseases:
 
       Child Nodes:

 Sister Nodes: 
..expandReduced amplitude of dark-adapted bright flash electroretinogram a-wave (HP:0030483) help
..expandSupernormal dark-adapted bright flash electroretinogram b-wave (HP:0030484) help
InputHPO IDHPO termDistanceGeneGene id entrezDiseaseIdDiseaseNameDiseaseMIMConceptIDSourceTypical associationHGMD variantsClinVar variantsHGNC IDGeneMIM
 
HPO disease - gene - phenotype typical associations:
HP:0007984HP:0007984Electronegative electroretinogram0CABP4 CL E G H57010610427Congenital stationary night blindness, type 2B610427C1864877OMIM12521386608965
HP:0007984HP:0007984Electronegative electroretinogram0CABP4 CL E G H57010610427Congenital stationary night blindness, type 2B610427C1864877OMIM13121386608965
HP:0007984HP:0007984Electronegative electroretinogram0CACNA2D4 CL E G H93589610478Retinal cone dystrophy 4610478C1864849OMIM175720202608171
HP:0007984HP:0007984Electronegative electroretinogram0CACNA2D4 CL E G H93589610478Retinal cone dystrophy 4610478C1864849OMIM159320202608171
HP:0007984HP:0007984Electronegative electroretinogram0RS1 CL E G H6247312700Juvenile retinoschisis312700C0271091OMIM162210457300839
HP:0007984HP:0007984Electronegative electroretinogram0RS1 CL E G H6247312700Juvenile retinoschisis312700C0271091OMIM155110457300839
 
HPO disease - gene - phenotype less frequent non-typical associations:


Genes (3) :CABP4 CACNA2D4 RS1

Diseases (3) :610427 610478 312700
 

Human Phenotype Ontology(HPO) is developed by the Human Phenotype Ontology Consortium. The version used here is August 2021 release.