Variant chr22-43137157-A-G details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_173467.5(MCAT):c.653T>C(p.Leu218Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000197 in 152,210 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/23 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Consequence

MCAT
NM_173467.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.31

Variant links:

Genes affected

MCAT (HGNC:29622): (malonyl-CoA-acyl carrier protein transacylase) The protein encoded by this gene is found exclusively in the mitochondrion, where it catalyzes the transfer of a malonyl group from malonyl-CoA to the mitochondrial acyl carrier protein. The encoded protein may be part of a fatty acid synthase complex that is more like the type II prokaryotic and plastid complexes rather than the type I human cytosolic complex. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Mar 2012]

MCAT 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/exons	MANE	Protein
MCAT	NM_173467.5 linkuse as main transcript	c.653T>C	p.Leu218Ser	missense_variant	3/4	ENST00000290429.11	NP_775738.3
MCAT	NM_014507.3 linkuse as main transcript	c.512-3671T>C		intron_variant			NP_055322.1
MCAT	NR_046423.1 linkuse as main transcript	n.595-3671T>C		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MCAT	ENST00000290429.11 linkuse as main transcript	c.653T>C	p.Leu218Ser	missense_variant	3/4	1	NM_173467.5	ENSP00000290429	P1	Q8IVS2-1
MCAT	ENST00000327555.5 linkuse as main transcript	c.512-3671T>C		intron_variant		1		ENSP00000331306		Q8IVS2-2

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152210

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74362

show subpopulations

Gnomad4 AFR

AF:

0.0000724

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000936

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 16, 2021

The c.653T>C (p.L218S) alteration is located in exon 3 (coding exon 3) of the MCAT gene. This alteration results from a T to C substitution at nucleotide position 653, causing the leucine (L) at amino acid position 218 to be replaced by a serine (S). 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

Benign

0.15

BayesDel_addAF

Benign

-0.091

BayesDel_noAF

Benign

-0.37

CADD

Benign

DANN

Benign

0.97

DEOGEN2

Benign

0.29

Eigen

Benign

-0.28

Eigen_PC

Benign

-0.31

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.78

M_CAP

Benign

0.030

MetaRNN

Benign

0.30

MetaSVM

Benign

-1.1

MutationAssessor

Benign

2.0

MutationTaster

Benign

1.0

D;D

PrimateAI

Benign

0.34

PROVEAN

Uncertain

-2.4

REVEL

Benign

0.15

Sift

Benign

0.30

Sift4G

Benign

0.44

Polyphen

0.69

Vest4

0.37

MutPred

0.55

Gain of disorder (P = 0.0037);

MVP

0.56

MPC

0.53

ClinPred

0.54

GERP RS

3.0

Varity_R

0.19

gMVP

0.72

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.26

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.26

Position offset: -16

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