5-150201184-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_014228.5(SLC6A7):c.819C>A(p.Phe273Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: SLC6A7 NM_014228.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.67

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.87

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLC6A7	NM_014228.5	c.819C>A	p.Phe273Leu	missense_variant	6/14	ENST00000230671.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC6A7	ENST00000230671.7	c.819C>A	p.Phe273Leu	missense_variant	6/14	1	NM_014228.5	P1
SLC6A7	ENST00000524041.1	c.819C>A	p.Phe273Leu	missense_variant	6/16	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 27, 2023

The c.819C>A (p.F273L) alteration is located in exon 6 (coding exon 6) of the SLC6A7 gene. This alteration results from a C to A substitution at nucleotide position 819, causing the phenylalanine (F) at amino acid position 273 to be replaced by a leucine (L). 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	1.0
BayesDel_addAF	Pathogenic	0.17	D
BayesDel_noAF	Uncertain	0.010
Cadd	Uncertain	25
Dann	Uncertain	1.0
DEOGEN2	Uncertain	0.53	D;T
Eigen	Uncertain	0.64
Eigen_PC	Uncertain	0.61
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Uncertain	0.93	D;D
M_CAP	Uncertain	0.094	D
MetaRNN	Pathogenic	0.87	D;D
MetaSVM	Uncertain	0.24	D
MutationAssessor	Pathogenic	2.9	M;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.78	T
PROVEAN	Pathogenic	-5.2	D;D
REVEL	Pathogenic	0.65
Sift	Uncertain	0.0040	D;D
Sift4G	Uncertain	0.0060	D;D
Polyphen		1.0	D;.
Vest4		0.75
MutPred		0.80		Loss of methylation at K269 (P = 0.0748);Loss of methylation at K269 (P = 0.0748);
MVP		0.88
MPC		0.78
ClinPred		1.0	D
GERP RS		5.2
Varity_R		0.88
gMVP		0.46

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr5-149580747;