Trait
Exaggerated startle response
An exaggerated startle reaction in response to a sudden unexpected visual or acoustic stimulus, or a quick movement near the face.
Summary
- Also called
- Exaggerated acoustic startle response, Increased startle response
- Body system
- Abnormality of the nervous system
Reference genomeGRCh38hg38
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Get my Genome Test37 genes linked to Exaggerated startle response
Changes in these genes cause rare conditions in which Exaggerated startle response is seen. Most people with this trait have none of those conditions, and a gene on this list says nothing about anyone's own genome.
| Gene | How often it is seen | Conditions |
|---|---|---|
| ARHGEF9Cdc42 guanine nucleotide exchange factor 9 | Always | In 2 conditions |
| BRAT1BRCA1 associated ATM activator 1 | Always | In 1 condition |
| DNM1Ldynamin 1L | Always | In 1 condition |
| GCSHglycine cleavage system protein H | Always | In 1 condition |
| GLRBglycine receptor beta | Always | In 1 condition |
| GM2Aganglioside GM2 activator | Always | In 2 conditions |
| HEXBhexosaminidase subunit beta | Always | In 2 conditions |
| KLC2kinesin light chain 2 | Always | In 2 conditions |
| MED16mediator complex subunit 16 | Always | In 1 condition |
| MTHFSmethenyltetrahydrofolate synthetase | Always | In 1 condition |
| PIGAphosphatidylinositol glycan anchor biosynthesis class A | Always | In 1 condition |
| PLAAphospholipase A2 activating protein | Always | In 2 conditions |
| SLC6A5solute carrier family 6 member 5 | Always | In 1 condition |
| SOD1superoxide dismutase 1 | Always | In 1 condition |
| TSPYL1TSPY like 1 | Always | In 1 condition |
| ASNSasparagine synthetase (glutamine-hydrolyzing) | Often (30–79%) | In 1 condition |
| DDCdopa decarboxylase | Often (30–79%) | In 1 condition |
| DENND5ADENN domain containing 5A | Often (30–79%) | In 1 condition |
| FLRT1fibronectin leucine rich transmembrane protein 1 | Often (30–79%) | In 1 condition |
| FTH1ferritin heavy chain 1 | Often (30–79%) | In 1 condition |
| GLB1galactosidase beta 1 | Often (30–79%) | In 1 condition |
| GRIA4glutamate ionotropic receptor AMPA type subunit 4 | Often (30–79%) | In 1 condition |
| MED11mediator complex subunit 11 | Often (30–79%) | In 1 condition |
| CACNA1Icalcium voltage-gated channel subunit alpha1 I | Sometimes (5–29%) | In 1 condition |
| FKTNfukutin | Sometimes (5–29%) | In 1 condition |
| HIKESHIheat shock protein nuclear import factor hikeshi | Sometimes (5–29%) | In 1 condition |
| PURApurine rich element binding protein A | Sometimes (5–29%) | In 1 condition |
| RNU5B-1RNA, U5B small nuclear 1 | Sometimes (5–29%) | In 1 condition |
| TEFMtranscription elongation factor, mitochondrial | Sometimes (5–29%) | In 1 condition |
| TNIKTRAF2 and NCK interacting kinase | Sometimes (5–29%) | In 1 condition |
| ZMYM2zinc finger MYM-type containing 2 | Sometimes (5–29%) | In 1 condition |
| ALDH3A2aldehyde dehydrogenase 3 family member A2 | Rarely (1–4%) | In 1 condition |
| GLRA1glycine receptor alpha 1 | Not recorded | In 1 condition |
| GPHNgephyrin | Not recorded | In 1 condition |
| HEXAhexosaminidase subunit alpha | Not recorded | In 1 condition |
| SLC6A9solute carrier family 6 member 9 | Not recorded | In 1 condition |
| TRAK1trafficking kinesin protein 1 | Not recorded | In 1 condition |
How often is among people with one of the gene's conditions, the most often across them, as the Human Phenotype Ontology records it. These pages describe traits and the research behind them; they are not a diagnosis, and a doctor or genetic counsellor is the person to ask about symptoms.
Broader traits
Where this comes from
- The Human Phenotype Ontology, release 2026-09-01: the trait, its names, its definition and the genes linked to it. Find out more at hpo.jax.org.
- Data release 2026.10.16-c6eea6bf.
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