2-233309224-C-T

Variant names:

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_000541.5(SAG):c.35C>T(p.Pro12Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000535 in 1,613,684 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. P12P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00034 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00056 ( 3 hom. )

Consequence

SAG
NM_000541.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 0.0770

Variant links:

Genes affected

SAG (HGNC:10521): (S-antigen visual arrestin) Members of arrestin/beta-arrestin protein family are thought to participate in agonist-mediated desensitization of G-protein-coupled receptors and cause specific dampening of cellular responses to stimuli such as hormones, neurotransmitters, or sensory signals. S-arrestin, also known as S-antigen, is a major soluble photoreceptor protein that is involved in desensitization of the photoactivated transduction cascade. It is expressed in the retina and the pineal gland and inhibits coupling of rhodopsin to transducin in vitro. Additionally, S-arrestin is highly antigenic, and is capable of inducing experimental autoimmune uveoretinitis. Mutations in this gene have been associated with Oguchi disease, a rare autosomal recessive form of night blindness. [provided by RefSeq, Jul 2008]

SAG links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.02061376).

BP6

Variant 2-233309224-C-T is Benign according to our data. Variant chr2-233309224-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 1088116.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}. Variant chr2-233309224-C-T is described in Lovd as [Likely_benign].

BS2

High Homozygotes in GnomAdExome4 at 3 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SAG	NM_000541.5 link	c.35C>T	p.Pro12Leu	missense_variant	Exon 2 of 16	ENST00000409110.6	NP_000532.2	P10523

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SAG	ENST00000409110.6 link	c.35C>T	p.Pro12Leu	missense_variant	Exon 2 of 16	5	NM_000541.5	ENSP00000386444.1		P10523

Frequencies

GnomAD3 genomes

AF:

0.000342

AC:

AN:

152066

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000945

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000617

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000582

AC:

145

AN:

249040

Hom.:

AF XY:

0.000592

AC XY:

AN XY:

135110

show subpopulations

Gnomad AFR exome

AF:

0.000129

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000111

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000371

Gnomad NFE exome

AF:

0.00111

Gnomad OTH exome

AF:

0.000662

GnomAD4 exome

AF:

0.000556

AC:

812

AN:

1461500

Hom.:

Cov.:

AF XY:

0.000554

AC XY:

403

AN XY:

727034

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000134

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.000101

Gnomad4 SAS exome

AF:

0.0000464

Gnomad4 FIN exome

AF:

0.000468

Gnomad4 NFE exome

AF:

0.000653

Gnomad4 OTH exome

AF:

0.000745

GnomAD4 genome

AF:

0.000342

AC:

AN:

152184

Hom.:

Cov.:

AF XY:

0.000323

AC XY:

AN XY:

74398

show subpopulations

Gnomad4 AFR

AF:

0.000169

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000945

Gnomad4 NFE

AF:

0.000617

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000676

Hom.:

Bravo

AF:

0.000332

TwinsUK

AF:

0.00108

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000484

AC:

ExAC

AF:

0.000910

AC:

110

EpiCase

AF:

0.000382

EpiControl

AF:

0.000178

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Dec 05, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.35C>T (p.P12L) alteration is located in exon 2 (coding exon 1) of the SAG gene. This alteration results from a C to T substitution at nucleotide position 35, causing the proline (P) at amino acid position 12 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Benign:1

Jan 06, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.53

BayesDel_noAF

Benign

-0.59

CADD

Benign

DANN

Benign

0.95

DEOGEN2

Benign

0.31

.;T;.

Eigen

Benign

-0.74

Eigen_PC

Benign

-0.84

FATHMM_MKL

Benign

0.048

M_CAP

Benign

0.0051

MetaRNN

Benign

0.021

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.5

.;L;.

PrimateAI

Benign

0.31

PROVEAN

Uncertain

-2.5

N;N;D

REVEL

Benign

0.017

Sift

Uncertain

0.0050

D;D;D

Sift4G

Uncertain

0.055

T;T;D

Polyphen

0.27

.;B;.

Vest4

0.15

MVP

0.61

MPC

0.15

ClinPred

0.020

GERP RS

2.3

Varity_R

0.031

gMVP

0.32

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