19-18868804-G-C

Variant summary

Our verdict is Benign. The variant received -15 ACMG points: 0P and 15B. BP4_StrongBP6_ModerateBP7BS1BS2

The ENST00000247005.8(GDF1):​c.912C>G​(p.Val304Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000682 in 1,455,994 control chromosomes in the GnomAD database, including 38 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00039 ( 3 hom., cov: 33)
Exomes 𝑓: 0.00072 ( 35 hom. )

Consequence

GDF1
ENST00000247005.8 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:2

Conservation

PhyloP100: -0.288

Publications

1 publications found
Variant links:
Genes affected
GDF1 (HGNC:4214): (growth differentiation factor 1) This gene encodes a secreted ligand of the TGF-beta (transforming growth factor-beta) superfamily of proteins. Ligands of this family bind various TGF-beta receptors leading to recruitment and activation of SMAD family transcription factors that regulate gene expression. The encoded preproprotein is proteolytically processed to generate each subunit of the disulfide-linked homodimer. Studies in rodents suggest that this protein is involved in the establishment of left-right asymmetry in early embryogenesis and in neural development in later embryogenesis. The encoded protein is translated from a bicistronic mRNA that also encodes ceramide synthase 1. Mutations in this gene are associated with several congenital cardiovascular malformations. [provided by RefSeq, Jul 2016]
CERS1 (HGNC:14253): (ceramide synthase 1) This gene encodes a ceramide synthase enzyme, which catalyzes the synthesis of ceramide, the hydrophobic moiety of sphingolipids. The encoded enzyme synthesizes 18-carbon (C18) ceramide in brain neurons. Elevated expression of this gene may be associated with increased longevity, while decreased expression of this gene may be associated with myoclonus epilepsy with dementia in human patients. This protein is transcribed from a monocistronic mRNA as well as a bicistronic mRNA, which also encodes growth differentiation factor 1. [provided by RefSeq, Jul 2016]
CERS1 Gene-Disease associations (from GenCC):
  • progressive myoclonic epilepsy type 8
    Inheritance: AR Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -15 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BP6
Variant 19-18868804-G-C is Benign according to our data. Variant chr19-18868804-G-C is described in ClinVar as Likely_benign. ClinVar VariationId is 471939.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-0.288 with no splicing effect.
BS1
Variant frequency is greater than expected in population eas. GnomAdExome4 allele frequency = 0.000715 (935/1306958) while in subpopulation EAS AF = 0.0349 (923/26460). AF 95% confidence interval is 0.033. There are 35 homozygotes in GnomAdExome4. There are 448 alleles in the male GnomAdExome4 subpopulation. Median coverage is 31. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 3 AD,AR,Unknown gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000247005.8. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
GDF1
NM_001492.6
MANE Select
c.912C>Gp.Val304Val
synonymous
Exon 8 of 8NP_001483.3
CERS1
NM_021267.5
MANE Select
c.*1181C>G
3_prime_UTR
Exon 8 of 8NP_067090.1
GDF1
NM_001387438.1
c.912C>Gp.Val304Val
synonymous
Exon 5 of 5NP_001374367.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
GDF1
ENST00000247005.8
TSL:1 MANE Select
c.912C>Gp.Val304Val
synonymous
Exon 8 of 8ENSP00000247005.5
CERS1
ENST00000623882.4
TSL:1 MANE Select
c.*1181C>G
3_prime_UTR
Exon 8 of 8ENSP00000485308.1

Frequencies

GnomAD3 genomes
AF:
0.000389
AC:
58
AN:
148928
Hom.:
3
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.0112
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000530
AC:
6
AN:
113102
AF XY:
0.0000322
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000808
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000715
AC:
935
AN:
1306958
Hom.:
35
Cov.:
31
AF XY:
0.000694
AC XY:
448
AN XY:
645072
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
25786
American (AMR)
AF:
0.00
AC:
0
AN:
30840
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
21374
East Asian (EAS)
AF:
0.0349
AC:
923
AN:
26460
South Asian (SAS)
AF:
0.00
AC:
0
AN:
75770
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
43194
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4480
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1027124
Other (OTH)
AF:
0.000231
AC:
12
AN:
51930
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.551
Heterozygous variant carriers
0
47
94
141
188
235
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.000389
AC:
58
AN:
149036
Hom.:
3
Cov.:
33
AF XY:
0.000426
AC XY:
31
AN XY:
72706
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41218
American (AMR)
AF:
0.00
AC:
0
AN:
15014
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3408
East Asian (EAS)
AF:
0.0113
AC:
58
AN:
5146
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
9344
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
66790
Other (OTH)
AF:
0.00
AC:
0
AN:
2082
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.517
Heterozygous variant carriers
0
3
6
9
12
15
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
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:
0.0000859
Hom.:
0
Bravo
AF:
0.0000756

ClinVar

ClinVar submissions as Germline

Significance:Likely benign
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
GDF1-related disorder (1)
-
-
1
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
0.47
DANN
Benign
0.55
PhyloP100
-0.29
Mutation Taster
=100/0
polymorphism

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: rs551588378; hg19: chr19-18979613; API