rs781997638

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

This summary comes from the ClinGen Evidence Repository: The NM_005629.4(SLC6A8):c.116G>A (p.Gly39Asp) variant in SLC6A8 is a missense variant predicted to cause substitution of Glycine for Aspartic Acid at amino acid 39 (p.Gly39Asp). This variant is absent from gnomAD v2.1.1, therefore PM2_Supporting criteria is applicable. The computational predictor REVEL gives a score of 0.107 which is below the threshold of 0.25, and does not predict a damaging effect on SLC6A8 function, and SpliceAI predicts no impact on splicing (BP4). This variant has not been previously reported in affected individuals in the literature. There is a ClinVar entry for this variant (Variation ID:410221). In summary, this variant meets the criteria to be classified as a Variant of Uncertain Significance for Creatine Transporter Deficiency based on the ACMG/AMP criteria applied, as specified by the ClinGen Cerebral Creatine Deficiency Syndromes Variant Curation Expert Panel (Specifications Version 1.1.0): PM2_Supporting, BP4.(Classification approved by the ClinGen CCDS VCEP on June 6, 2022). LINK:https://erepo.genome.network/evrepo/ui/classification/CA16616458/MONDO:0010305/027

Frequency

Genomes: not found (cov: 21)

Exomes 𝑓: 0.0 ( 0 hom. 0 hem. )

Failed GnomAD Quality Control

Consequence

SLC6A8
NM_005629.4 missense

Scores

Clinical Significance

Uncertain significance reviewed by expert panel U:2

Conservation

PhyloP100: 0.896

Variant links:

Genes affected

SLC6A8 (HGNC:11055): (solute carrier family 6 member 8) The protein encoded by this gene is a plasma membrane protein whose function is to transport creatine into and out of cells. Defects in this gene can result in X-linked creatine deficiency syndrome. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2008]

SLC6A8 links:

PNCK (HGNC:13415): (pregnancy up-regulated nonubiquitous CaM kinase) PNCK is a member of the calcium/calmodulin-dependent protein kinase family of protein serine/threonine kinases (see CAMK1; MIM 604998) (Gardner et al., 2000 [PubMed 10673339]).[supplied by OMIM, Mar 2008]

PNCK links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

For more information check the summary or visit ClinGen Evidence Repository.

BP4

For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC6A8	NM_005629.4 link	c.116G>A	p.Gly39Asp	missense_variant	Exon 1 of 13	ENST00000253122.10	NP_005620.1	P48029-1X5D9C4
SLC6A8	NM_001142805.2 link	c.116G>A	p.Gly39Asp	missense_variant	Exon 1 of 13		NP_001136277.1	P48029Q59EV7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SLC6A8	ENST00000253122.10 link	c.116G>A	p.Gly39Asp	missense_variant	Exon 1 of 13	1	NM_005629.4	ENSP00000253122.5	P48029-1
PNCK	ENST00000458354.5 link	c.-3+125C>T		intron_variant	Intron 1 of 3	3		ENSP00000401542.1	C9J2B9
PNCK	ENST00000480693.1 link	n.64+125C>T		intron_variant	Intron 1 of 3	5
SLC6A8	ENST00000476466.1 link	n.-33G>A		upstream_gene_variant		3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1003854

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

322112

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Creatine transporter deficiency

Uncertain:2

Jun 06, 2022

ClinGen Cerebral Creatine Deficiency Syndromes Variant Curation Expert Panel, ClinGen

Significance: Uncertain significance

Review Status: reviewed by expert panel

Collection Method: curation

The NM_005629.4(SLC6A8):c.116G>A (p.Gly39Asp) variant in SLC6A8 is a missense variant predicted to cause substitution of Glycine for Aspartic Acid at amino acid 39 (p.Gly39Asp). This variant is absent from gnomAD v2.1.1, therefore PM2_Supporting criteria is applicable. The computational predictor REVEL gives a score of 0.107 which is below the threshold of 0.25, and does not predict a damaging effect on SLC6A8 function, and SpliceAI predicts no impact on splicing (BP4). This variant has not been previously reported in affected individuals in the literature. There is a ClinVar entry for this variant (Variation ID:410221). In summary, this variant meets the criteria to be classified as a Variant of Uncertain Significance for Creatine Transporter Deficiency based on the ACMG/AMP criteria applied, as specified by the ClinGen Cerebral Creatine Deficiency Syndromes Variant Curation Expert Panel (Specifications Version 1.1.0): PM2_Supporting, BP4. (Classification approved by the ClinGen CCDS VCEP on June 6, 2022). -

Aug 09, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with aspartic acid, which is acidic and polar, at codon 39 of the SLC6A8 protein (p.Gly39Asp). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with SLC6A8-related conditions. ClinVar contains an entry for this variant (Variation ID: 410221). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt SLC6A8 protein function. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.56

CADD

Benign

DANN

Benign

0.94

DEOGEN2

Benign

0.093

FATHMM_MKL

Benign

0.052

LIST_S2

Benign

0.42

M_CAP

Pathogenic

0.75

MetaRNN

Benign

0.25

MetaSVM

Benign

-0.93

MutationAssessor

Benign

0.0

PrimateAI

Pathogenic

0.88

PROVEAN

Benign

0.76

REVEL

Benign

0.11

Sift

Benign

0.63

Sift4G

Benign

0.67

Polyphen

0.98

Vest4

0.17

MutPred

0.26

Loss of sheet (P = 0.0457);

MVP

0.43

MPC

1.6

ClinPred

0.10

GERP RS

2.3

RBP_binding_hub_radar

1.0

RBP_regulation_power_radar

2.8

Varity_R

0.12

gMVP

0.50

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over