Genetic Variant STRA6:p.Ala123Thr (chr15-74196047-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_ModerateBS1

The NM_022369.4(STRA6):c.367G>A(p.Ala123Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000013 in 1,613,852 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

STRA6
NM_022369.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.08

Variant links:

Genes affected

STRA6 (HGNC:30650): (signaling receptor and transporter of retinol STRA6) The protein encoded by this gene is a membrane protein involved in the metabolism of retinol. The encoded protein acts as a receptor for retinol/retinol binding protein complexes. This protein removes the retinol from the complex and transports it across the cell membrane. Defects in this gene are a cause of syndromic microphthalmia type 9 (MCOPS9). Several transcript variants encoding a few different isoforms have been found for this gene. [provided by RefSeq, Dec 2008]

STRA6 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.10386068).

BS1

Variant frequency is greater than expected in population sas. gnomad4_exome allele frequency = 0.000013 (19/1461760) while in subpopulation SAS AF= 0.000116 (10/86248). AF 95% confidence interval is 0.0000625. There are 0 homozygotes in gnomad4_exome. There are 9 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
STRA6	NM_022369.4 link	c.367G>A	p.Ala123Thr	missense_variant	Exon 5 of 19	ENST00000395105.9	NP_071764.3	Q9BX79-1B3KPB8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
STRA6	ENST00000395105.9 link	c.367G>A	p.Ala123Thr	missense_variant	Exon 5 of 19	1	NM_022369.4	ENSP00000378537.4		Q9BX79-1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152092

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000479

AC:

AN:

250656

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135630

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000130

AC:

AN:

1461760

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

727160

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000719

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152092

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74300

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ExAC

AF:

0.0000412

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.071

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.35

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.095

T;.;T;T;.;T;.;.;.;.

Eigen

Benign

-0.57

Eigen_PC

Benign

-0.45

FATHMM_MKL

Benign

0.55

LIST_S2

Benign

0.73

.;T;.;.;T;T;T;T;T;T

M_CAP

Benign

0.073

MetaRNN

Benign

0.10

T;T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.80

MutationAssessor

Benign

0.69

N;.;N;N;.;N;.;.;.;N

PrimateAI

Benign

0.39

PROVEAN

Benign

0.33

N;N;N;.;.;.;N;N;.;N

REVEL

Benign

0.19

Sift

Benign

0.11

T;T;T;.;.;.;T;D;.;T

Sift4G

Uncertain

0.023

D;D;D;D;D;D;D;D;D;D

Polyphen

0.0050

B;B;B;B;.;B;.;B;.;P

Vest4

0.13

MutPred

0.40

Gain of phosphorylation at A123 (P = 0.0723);.;Gain of phosphorylation at A123 (P = 0.0723);Gain of phosphorylation at A123 (P = 0.0723);Gain of phosphorylation at A123 (P = 0.0723);Gain of phosphorylation at A123 (P = 0.0723);.;.;.;Gain of phosphorylation at A123 (P = 0.0723);

MVP

0.73

MPC

0.091

ClinPred

0.050

GERP RS

4.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.045

gMVP

0.46

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over