3-11017216-C-A

Position:

• chr3-11017216-C-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 1P and 5B. PP2 BP6 BS2

The NM_003042.4(SLC6A1):​c.5C>A​(p.Ala2Glu) variant causes a missense change. The variant allele was found at a frequency of 0.0000123 in 1,461,252 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A2V) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.000012 (0 hom.)
• Consequence: SLC6A1 NM_003042.4 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:1
• Conservation: PhyloP100: 5.52

Genes affected

SLC6A1 (HGNC:11042): (solute carrier family 6 member 1) The protein encoded by this gene is a gamma-aminobutyric acid (GABA) transporter that localizes to the plasma membrane. The encoded protein removes GABA from the synaptic cleft, restoring it to presynaptic terminals. [provided by RefSeq, Jan 2017]

SLC6A1-AS1 (HGNC:40546): (SLC6A1 antisense RNA 1)

ACMG classification

Verdict is Likely_benign. Variant got -4 ACMG points.

• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), SLC6A1. . Gene score misZ 4.1766 (greater than the threshold 3.09). Trascript score misZ 4.9229 (greater than threshold 3.09). GenCC has associacion of gene with myoclonic-atonic epilepsy, myoclonic-astatic epilepsy.
• BP6: Variant 3-11017216-C-A is Benign according to our data. Variant chr3-11017216-C-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 1188750.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.
• BS2: High AC in GnomAdExome4 at 18 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLC6A1	NM_003042.4	c.5C>A	p.Ala2Glu	missense_variant	3/16	ENST00000287766.10
SLC6A1-AS1	NR_046647.1	n.105+1904G>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC6A1	ENST00000287766.10	c.5C>A	p.Ala2Glu	missense_variant	3/16	1	NM_003042.4	P1
SLC6A1-AS1	ENST00000414969.2	n.105+1904G>T		intron_variant, non_coding_transcript_variant		4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.0000123 AC: 18 AN: 1461252 Hom.: 0 Cov.: 31 AF XY: 0.0000110 AC XY: 8 AN XY: 726846

Gnomad4 AFR exome AF: 0.0000299

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: 0.0000153

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000564 Hom.: 0

Bravo AF: 0.00000756

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:1

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Sep 10, 2021

Has not been previously published as pathogenic or benign to our knowledge; Not observed in large population cohorts (Lek et al., 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect -

Myoclonic-atonic epilepsy Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Oct 26, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.30
BayesDel_addAF	Uncertain	0.056	T
BayesDel_noAF	Benign	-0.16
CADD	Pathogenic	26
DANN	Uncertain	0.99
DEOGEN2	Benign	0.20	T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;.;T;.;T;T;.;.;.
Eigen	Uncertain	0.37
Eigen_PC	Uncertain	0.42
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Benign	0.18	.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;T;.;.;.;T;T;T;T
M_CAP	Benign	0.049	D
MetaRNN	Uncertain	0.44	T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM	Uncertain	-0.28	T
MutationAssessor	Benign	0.97	L;L;L;L;L;L;L;L;L;L;L;L;L;L;L;L;.;L;.;L;L;.;.;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.73	T
PROVEAN	Benign	-0.090	.;N;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.
REVEL	Uncertain	0.31
Sift	Uncertain	0.0050	.;D;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.
Sift4G	Uncertain	0.0070	.;D;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.
Polyphen		0.99	D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;.;D;.;D;D;.;.;.
Vest4		0.44
MutPred		0.24		Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);Loss of MoRF binding (P = 0.0308);
MVP		0.54
MPC		2.2
ClinPred		0.91	D
GERP RS		4.4
Varity_R		0.19
gMVP		0.78

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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

Other links and lift over

dbSNP: rs913073947; hg19: chr3-11058902;