rs2276462

Variant names:

Variant summary

Our verdict is Benign. The variant received -15 ACMG points: 0P and 15B. BP4_ModerateBP6_Very_StrongBP7BS2

The NM_001493.3(GDI1):c.588C>T(p.Asp196Asp) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000168 in 1,208,916 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 70 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000045 ( 0 hom., 1 hem., cov: 24)

Exomes 𝑓: 0.00018 ( 0 hom. 69 hem. )

Consequence

GDI1
NM_001493.3 splice_region, synonymous

Scores

Splicing: ADA: 0.0002593

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.211

Publications

2 publications found

Variant links:

Genes affected

GDI1 (HGNC:4226): (GDP dissociation inhibitor 1) GDP dissociation inhibitors are proteins that regulate the GDP-GTP exchange reaction of members of the rab family, small GTP-binding proteins of the ras superfamily, that are involved in vesicular trafficking of molecules between cellular organelles. GDIs slow the rate of dissociation of GDP from rab proteins and release GDP from membrane-bound rabs. GDI1 is expressed primarily in neural and sensory tissues. Mutations in GDI1 have been linked to X-linked nonspecific cognitive disability. [provided by RefSeq, Jul 2008]

GDI1 Gene-Disease associations (from GenCC):

intellectual disability, X-linked 41
Inheritance: XL Classification: STRONG, MODERATE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
non-syndromic X-linked intellectual disability
Inheritance: XL Classification: MODERATE, SUPPORTIVE Submitted by: ClinGen, Orphanet

GDI1 links:

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=-0.42).

BP6

Variant X-154440375-C-T is Benign according to our data. Variant chrX-154440375-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 792924.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=0.211 with no splicing effect.

BS2

High Hemizygotes in GnomAdExome4 at 69 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GDI1	NM_001493.3 link	c.588C>T	p.Asp196Asp	splice_region_variant, synonymous_variant	Exon 6 of 11	ENST00000447750.7	NP_001484.1	P31150A0A0S2Z3X8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GDI1	ENST00000447750.7 link	c.588C>T	p.Asp196Asp	splice_region_variant, synonymous_variant	Exon 6 of 11	1	NM_001493.3	ENSP00000394071.2		P31150

Frequencies

GnomAD3 genomes

AF:

0.0000447

AC:

AN:

111937

Hom.:

Cov.:

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:

0.00140

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:

0.0000491

AC:

AN:

183299

AF XY:

0.0000295

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000649

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000181

AC:

198

AN:

1096924

Hom.:

Cov.:

AF XY:

0.000190

AC XY:

AN XY:

362356

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

26376

American (AMR)

AF:

0.00

AC:

AN:

35206

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19372

East Asian (EAS)

AF:

0.00639

AC:

193

AN:

30200

South Asian (SAS)

AF:

0.00

AC:

AN:

54117

European-Finnish (FIN)

AF:

0.00

AC:

AN:

40466

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4128

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

841013

Other (OTH)

AF:

0.000109

AC:

AN:

46046

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.504

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

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:

0.0000446

AC:

AN:

111992

Hom.:

Cov.:

AF XY:

0.0000293

AC XY:

AN XY:

34156

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

30799

American (AMR)

AF:

0.00

AC:

AN:

10610

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2656

East Asian (EAS)

AF:

0.00140

AC:

AN:

3565

South Asian (SAS)

AF:

0.00

AC:

AN:

2710

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6111

Middle Eastern (MID)

AF:

0.00

AC:

AN:

216

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

53122

Other (OTH)

AF:

0.00

AC:

AN:

1521

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.0000222786), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

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:

0.0000189

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Inborn genetic diseases

Benign:1

Jun 29, 2017

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

not provided

Benign:1

Oct 23, 2018

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.42

CADD

Benign

(source)

DANN

Benign

0.80

PhyloP100

0.21

Mutation Taster

=77/23

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00026

dbscSNV1_RF

Benign

0.096

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over