rs104894077

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

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

The NM_018972.4(GDAP1):c.487C>T(p.Gln163*) variant causes a stop gained, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000286 in 1,570,940 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

GDAP1
NM_018972.4 stop_gained, splice_region

Scores

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:11U:2O:3

Conservation

PhyloP100: 7.24

Publications

23 publications found

Variant links:

Genes affected

GDAP1 (HGNC:15968): (ganglioside induced differentiation associated protein 1) This gene encodes a member of the ganglioside-induced differentiation-associated protein family, which may play a role in a signal transduction pathway during neuronal development. Mutations in this gene have been associated with various forms of Charcot-Marie-Tooth Disease and neuropathy. Two transcript variants encoding different isoforms and a noncoding variant have been identified for this gene. [provided by RefSeq, Feb 2012]

GDAP1 Gene-Disease associations (from GenCC):

Charcot-Marie-Tooth disease
Inheritance: SD Classification: DEFINITIVE Submitted by: ClinGen
Charcot-Marie-Tooth disease axonal type 2K
Inheritance: AD, AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet
Charcot-Marie-Tooth disease recessive intermediate A
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet
autosomal dominant Charcot-Marie-Tooth disease type 2K
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Charcot-Marie-Tooth disease type 4A
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

GDAP1 links:

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 8-74361886-C-T is Pathogenic according to our data. Variant chr8-74361886-C-T is described in ClinVar as Pathogenic. ClinVar VariationId is 4193.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018972.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
GDAP1	NM_018972.4	MANE Select	c.487C>T	p.Gln163*	stop_gained splice_region	Exon 4 of 6	NP_061845.2	Q8TB36-1
GDAP1	NM_001362930.2		c.313C>T	p.Gln105*	stop_gained splice_region	Exon 3 of 5	NP_001349859.1	A0A6Q8PEZ4
GDAP1	NM_001040875.4		c.283C>T	p.Gln95*	stop_gained splice_region	Exon 4 of 6	NP_001035808.1	Q8TB36-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
GDAP1	ENST00000220822.12	TSL:1 MANE Select	c.487C>T	p.Gln163*	stop_gained splice_region	Exon 4 of 6	ENSP00000220822.7	Q8TB36-1
GDAP1	ENST00000434412.3	TSL:1	c.355C>T	p.Gln119*	stop_gained splice_region	Exon 5 of 7	ENSP00000417006.3	A0A7I2RYU0
GDAP1	ENST00000675463.1		c.487C>T	p.Gln163*	stop_gained splice_region	Exon 4 of 7	ENSP00000502327.1	A0A6Q8PGS2

Frequencies

GnomAD3 genomes

AF:

0.000151

AC:

AN:

152034

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00137

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:

0.00

Gnomad OTH

AF:

0.000959

GnomAD2 exomes

AF:

0.0000757

AC:

AN:

251134

AF XY:

0.0000663

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000521

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000155

AC:

AN:

1418788

Hom.:

Cov.:

AF XY:

0.0000155

AC XY:

AN XY:

708774

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32944

American (AMR)

AF:

0.000470

AC:

AN:

44666

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25902

East Asian (EAS)

AF:

0.00

AC:

AN:

39456

South Asian (SAS)

AF:

0.00

AC:

AN:

85554

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53180

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5702

European-Non Finnish (NFE)

AF:

9.33e-7

AC:

AN:

1072358

Other (OTH)

AF:

0.00

AC:

AN:

59026

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.452

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.000151

AC:

AN:

152152

Hom.:

Cov.:

AF XY:

0.000161

AC XY:

AN XY:

74392

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41512

American (AMR)

AF:

0.00137

AC:

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5158

South Asian (SAS)

AF:

0.00

AC:

AN:

4810

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10594

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68000

Other (OTH)

AF:

0.000949

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.516

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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.:

Bravo

AF:

0.000170

ExAC

AF:

0.0000165

AC:

ClinVar

ClinVar submissions

Significance:Pathogenic

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (5)

Charcot-Marie-Tooth disease type 4A (3)

Charcot-Marie-Tooth disease (3)

Charcot-Marie-Tooth disease axonal type 2K (1)

Charcot-Marie-Tooth disease recessive intermediate A;C1842983:Charcot-Marie-Tooth disease axonal type 2K;C1843183:Charcot-Marie-Tooth disease, axonal, with vocal cord paresis, autosomal recessive;C1859198:Charcot-Marie-Tooth disease type 4A (1)

Neuropathy, axonal, with vocal cord paresis, autosomal recessive (1)

Charcot-Marie-Tooth disease recessive intermediate A (1)

Charcot-Marie-Tooth disease, axonal, with vocal cord paresis, autosomal recessive (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.39

BayesDel_noAF

Pathogenic

0.65

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

Eigen

Pathogenic

1.1

Eigen_PC

Pathogenic

0.92

FATHMM_MKL

Pathogenic

0.98

PhyloP100

7.2

Vest4

0.89

GERP RS

5.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=1/199

disease causing (ClinVar)

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over