rs759412460

Variant summary

Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong

The NM_003640.5(ELP1):​c.641delC​(p.Pro214GlnfsTer39) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000161 in 1,611,430 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

ELP1
NM_003640.5 frameshift

Scores

Not classified

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:8

Conservation

PhyloP100: 3.54

Publications

1 publications found
Variant links:
Genes affected
ELP1 (HGNC:5959): (elongator acetyltransferase complex subunit 1) The protein encoded by this gene is a scaffold protein and a regulator for three different kinases involved in proinflammatory signaling. The encoded protein can bind NF-kappa-B-inducing kinase and I-kappa-B kinases through separate domains and assemble them into an active kinase complex. Mutations in this gene have been associated with familial dysautonomia. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jan 2016]
ELP1 Gene-Disease associations (from GenCC):
  • primary dysautonomia
    Inheritance: AR Classification: DEFINITIVE Submitted by: Myriad Women’s Health
  • Riley-Day syndrome
    Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, Orphanet
  • medulloblastoma
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 16 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PP5
Variant 9-108919260-TG-T is Pathogenic according to our data. Variant chr9-108919260-TG-T is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 553108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ELP1NM_003640.5 linkc.641delC p.Pro214GlnfsTer39 frameshift_variant Exon 7 of 37 ENST00000374647.10 NP_003631.2
ELP1NM_001318360.2 linkc.299delC p.Pro100GlnfsTer39 frameshift_variant Exon 7 of 37 NP_001305289.1
ELP1XM_047423991.1 linkc.641delC p.Pro214GlnfsTer39 frameshift_variant Exon 7 of 25 XP_047279947.1
ELP1NM_001330749.2 linkc.-307-1591delC intron_variant Intron 6 of 34 NP_001317678.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ELP1ENST00000374647.10 linkc.641delC p.Pro214GlnfsTer39 frameshift_variant Exon 7 of 37 1 NM_003640.5 ENSP00000363779.5

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152166
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000517
AC:
13
AN:
251340
AF XY:
0.0000368
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000318
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000158
AC:
23
AN:
1459146
Hom.:
0
Cov.:
30
AF XY:
0.0000179
AC XY:
13
AN XY:
726044
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33418
American (AMR)
AF:
0.000358
AC:
16
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26112
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39668
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86172
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53382
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
0.00000451
AC:
5
AN:
1109614
Other (OTH)
AF:
0.00
AC:
0
AN:
60298
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.464
Heterozygous variant carriers
0
2
4
6
8
10
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152284
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74474
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41554
American (AMR)
AF:
0.000131
AC:
2
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68024
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.458
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000227

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Familial dysautonomia Pathogenic:4
Jul 27, 2017
Counsyl
Significance:Likely pathogenic
Review Status:no assertion criteria provided
Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -

Jun 30, 2021
Fulgent Genetics, Fulgent Genetics
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

May 27, 2025
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant summary: ELP1 c.641delC (p.Pro214GlnfsX39) results in a premature termination codon, predicted to cause a truncation of the encoded protein or absence of the protein due to nonsense mediated decay, which are commonly known mechanisms for disease. The variant allele was found at a frequency of 5e-05 in 282744 control chromosomes (gnomAD). This frequency is not significantly higher than estimated for a pathogenic variant in ELP1 causing Familial Dysautonomia (5e-05 vs 0.0018), allowing no conclusion about variant significance. To our knowledge, no occurrence of c.641delC in individuals affected with Familial Dysautonomia and no experimental evidence demonstrating its impact on protein function has been reported. ClinVar contains an entry for this variant (Variation ID: 553108). Based on the evidence outlined above, the variant was classified as pathogenic. -

Mar 10, 2018
GeneID Lab - Advanced Molecular Diagnostics
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant deletes one nucleotide resulting in an amino acid alteration, replacing a proline (P) with a glutamine (Q) at codon 214 creating a premature stop signal in the new reading frame noted as p.P214Qfs*39. The substitution is predicted to result in a non-functional ELP1 protein, either through protein truncation or nonsense-mediated mRNA decay. This mutation is considered a non-tolerated amino acid change based on in silico prediction algorithms (disease causing), and it has not been reported in the Clinical Variant Database (NCBI National Library of Medicine, NIH) but it has been described in 7 alleles out of 119208, the majority (6) belonging to heterozygous carries of Latino origin. Based on these findings and the limited literature regarding this substitution we consider it as a likely pathogenic variant. -

not specified Pathogenic:1
Aug 29, 2019
Ambry Genetics
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.641delC variant, located in coding exon 6 of the IKBKAP gene, results from a deletion of one nucleotide at nucleotide position 641, causing a translational frameshift with a predicted alternate stop codon (p.P214Qfs*39). This alteration is expected to result in loss of function by premature protein truncation or nonsense-mediated mRNA decay. As such, this alteration is interpreted as a disease-causing mutation. -

Familial dysautonomia;C0025149:Medulloblastoma Pathogenic:1
Jan 23, 2024
Fulgent Genetics, Fulgent Genetics
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Pathogenic:1
Nov 24, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change creates a premature translational stop signal (p.Pro214Glnfs*39) in the ELP1 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in ELP1 are known to be pathogenic (PMID: 18303054, 24173031). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with ELP1-related conditions. ClinVar contains an entry for this variant (Variation ID: 553108). For these reasons, this variant has been classified as Pathogenic. -

Medulloblastoma Pathogenic:1
Aug 02, 2022
St. Jude Molecular Pathology, St. Jude Children's Research Hospital
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The ELP1 c.641del (p.Pro214GlnfsTer39) change causes a frameshift and the creation of a premature stop codon. This change is predicted to cause protein truncation or absence of the protein due to nonsense mediated decay. This variant has been reported in at least four pediatric patients with the sonic hedgehog (SHH) subtype of medulloblastoma (PMID: 32296180, internal data). This variant has a maximum subpopulation frequency of 0.034% in gnomAD v2.1.1 (https://gnomad.broadinstitute.org/). Loss-of-function variants in ELP1 are known to be pathogenic (PMID: 18303054, 32296180). In summary, this variant meets criteria to be classified as likely pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
PhyloP100
3.5
Mutation Taster
=1/199
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs759412460; hg19: chr9-111681540; API