Genetic Variant SLC6A7:p.Ala224Val (chr5-150199314-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_014228.5(SLC6A7):c.671C>T(p.Ala224Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000124 in 1,614,012 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

SLC6A7
NM_014228.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.99

Variant links:

Genes affected

SLC6A7 (HGNC:11054): (solute carrier family 6 member 7) This gene is a member of the gamma-aminobutyric acid (GABA) neurotransmitter gene family and encodes a high-affinity mammalian brain L-proline transporter protein. This transporter protein differs from other sodium-dependent plasma membrane carriers by its pharmacological specificity, kinetic properties, and ionic requirements. [provided by RefSeq, Jul 2008]

SLC6A7 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC6A7	NM_014228.5 link	c.671C>T	p.Ala224Val	missense_variant	Exon 5 of 14	ENST00000230671.7	NP_055043.2	Q99884

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC6A7	ENST00000230671.7 link	c.671C>T	p.Ala224Val	missense_variant	Exon 5 of 14	1	NM_014228.5	ENSP00000230671.2		Q99884
SLC6A7	ENST00000524041.1 link	c.671C>T	p.Ala224Val	missense_variant	Exon 5 of 16	5		ENSP00000428200.1		E5RJL1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152228

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000109

AC:

AN:

1461784

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727200

show subpopulations

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:

0.0000144

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152228

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74360

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000189

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 20, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.671C>T (p.A224V) alteration is located in exon 5 (coding exon 5) of the SLC6A7 gene. This alteration results from a C to T substitution at nucleotide position 671, causing the alanine (A) at amino acid position 224 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.88

BayesDel_addAF

Uncertain

0.032

BayesDel_noAF

Benign

-0.19

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.43

T;T

Eigen

Uncertain

0.38

Eigen_PC

Uncertain

0.46

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.91

D;D

M_CAP

Benign

0.035

MetaRNN

Uncertain

0.47

T;T

MetaSVM

Benign

-0.38

MutationAssessor

Benign

1.4

L;.

PrimateAI

Uncertain

0.62

PROVEAN

Uncertain

-3.6

D;D

REVEL

Uncertain

0.43

Sift

Uncertain

0.0020

D;D

Sift4G

Uncertain

0.059

T;T

Polyphen

0.66

P;.

Vest4

0.46

MutPred

0.62

Loss of catalytic residue at A224 (P = 0.144);Loss of catalytic residue at A224 (P = 0.144);

MVP

0.77

MPC

0.30

ClinPred

0.99

GERP RS

5.1

Varity_R

0.76

gMVP

0.61

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