6-158111398-G-A

Position:

chr6-158111398-G-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_032861.4(SERAC1):c.1933C>T(p.Arg645Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000252 in 1,603,836 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00026 ( 3 hom. )

Consequence

SERAC1
NM_032861.4 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 1.89

Variant links:

Genes affected

SERAC1 (HGNC:21061): (serine active site containing 1) The protein encoded by this gene is a phosphatidylglycerol remodeling protein found at the interface of mitochondria and endoplasmic reticula, where it mediates phospholipid exchange. The encoded protein plays a major role in mitochondrial function and intracellular cholesterol trafficking. Defects in this gene are a cause of 3-methylglutaconic aciduria with deafness, encephalopathy, and Leigh-like syndrome (MEGDEL). Two transcript variants, one protein-coding and the other non-protein coding, have been found for this gene. [provided by RefSeq, Aug 2012]

SERAC1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.010017186).

BP6

Variant 6-158111398-G-A is Benign according to our data. Variant chr6-158111398-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 1187183.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.000164 (25/152310) while in subpopulation EAS AF= 0.00328 (17/5190). AF 95% confidence interval is 0.00209. There are 0 homozygotes in gnomad4. There are 16 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 3 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SERAC1	NM_032861.4 linkuse as main transcript	c.1933C>T	p.Arg645Cys	missense_variant	17/17	ENST00000647468.2	NP_116250.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SERAC1	ENST00000647468.2 linkuse as main transcript	c.1933C>T	p.Arg645Cys	missense_variant	17/17		NM_032861.4	ENSP00000496731	P1	Q96JX3-1

Frequencies

GnomAD3 genomes

AF:

0.000164

AC:

AN:

152192

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:

0.00327

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000377

AC:

AN:

241460

Hom.:

AF XY:

0.000314

AC XY:

AN XY:

130458

show subpopulations

Gnomad AFR exome

AF:

0.0000622

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000207

Gnomad EAS exome

AF:

0.00437

Gnomad SAS exome

AF:

0.0000360

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000450

Gnomad OTH exome

AF:

0.000678

GnomAD4 exome

AF:

0.000261

AC:

379

AN:

1451526

Hom.:

Cov.:

AF XY:

0.000285

AC XY:

206

AN XY:

721716

show subpopulations

Gnomad4 AFR exome

AF:

0.0000304

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.000233

Gnomad4 EAS exome

AF:

0.00559

Gnomad4 SAS exome

AF:

0.0000359

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000121

Gnomad4 OTH exome

AF:

0.000233

GnomAD4 genome

AF:

0.000164

AC:

AN:

152310

Hom.:

Cov.:

AF XY:

0.000215

AC XY:

AN XY:

74482

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00328

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000882

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000115

Hom.:

Bravo

AF:

0.000144

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000519

AC:

Asia WGS

AF:

0.00289

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

3-methylglutaconic aciduria with deafness, encephalopathy, and Leigh-like syndrome

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Genome-Nilou Lab	Mar 15, 2022	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Dec 09, 2023	- -

SERAC1-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Jul 15, 2024

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Feb 04, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.083

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.27

CADD

Benign

DANN

Benign

0.95

DEOGEN2

Benign

0.13

T;T;.;.;.

Eigen

Benign

-0.47

Eigen_PC

Benign

-0.30

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.89

.;D;D;D;D

M_CAP

Benign

0.064

MetaRNN

Benign

0.010

T;T;T;T;T

MetaSVM

Uncertain

-0.20

MutationAssessor

Benign

0.53

N;N;.;.;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Benign

0.22

PROVEAN

Uncertain

-3.3

D;.;.;.;.

REVEL

Benign

0.26

Sift

Benign

0.13

T;.;.;.;.

Sift4G

Benign

0.14

T;.;.;.;.

Polyphen

0.0020

B;B;.;.;.

Vest4

0.074

MVP

0.85

MPC

0.34

ClinPred

0.065

GERP RS

0.64

Varity_R

0.098

gMVP

0.58

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

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over