chr15-65003120-C-T

Position:

chr15-65003120-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_139242.4(MTFMT):c.1112G>A(p.Arg371Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,612,362 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. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

MTFMT
NM_139242.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.39

Variant links:

Genes affected

MTFMT (HGNC:29666): (mitochondrial methionyl-tRNA formyltransferase) The protein encoded by this nuclear gene localizes to the mitochondrion, where it catalyzes the formylation of methionyl-tRNA. [provided by RefSeq, Jun 2011]

MTFMT links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.10835788).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MTFMT	NM_139242.4 linkuse as main transcript	c.1112G>A	p.Arg371Lys	missense_variant	9/9	ENST00000220058.9
MTFMT	XM_005254158.6 linkuse as main transcript	c.1265G>A	p.Arg422Lys	missense_variant	9/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MTFMT	ENST00000220058.9 linkuse as main transcript	c.1112G>A	p.Arg371Lys	missense_variant	9/9	1	NM_139242.4	P1	Q96DP5-1
MTFMT	ENST00000558460.5 linkuse as main transcript	c.1112G>A	p.Arg371Lys	missense_variant, NMD_transcript_variant	9/10	5			Q96DP5-1
MTFMT	ENST00000560717.5 linkuse as main transcript	c.*582G>A		3_prime_UTR_variant, NMD_transcript_variant	8/8	5

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

151982

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000197

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

GnomAD3 exomes

AF:

0.00000805

AC:

AN:

248442

Hom.:

AF XY:

0.00

AC XY:

AN XY:

134804

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000583

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1460380

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726378

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000449

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.00e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

151982

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74194

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000197

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

Bravo

AF:

0.0000189

ExAC

AF:

0.00000828

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 01, 2024

The c.1112G>A (p.R371K) alteration is located in exon 9 (coding exon 9) of the MTFMT gene. This alteration results from a G to A substitution at nucleotide position 1112, causing the arginine (R) at amino acid position 371 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jul 29, 2022

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The lysine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. This variant has not been reported in the literature in individuals affected with MTFMT-related conditions. This variant is present in population databases (rs771526888, gnomAD 0.009%). This sequence change replaces arginine, which is basic and polar, with lysine, which is basic and polar, at codon 371 of the MTFMT protein (p.Arg371Lys). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.080

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.45

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.14

Eigen

Benign

-0.15

Eigen_PC

Benign

0.057

FATHMM_MKL

Benign

0.49

M_CAP

Benign

0.0042

MetaRNN

Benign

0.11

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.6

MutationTaster

Benign

0.94

PrimateAI

Benign

0.36

PROVEAN

Benign

-0.080

REVEL

Benign

0.060

Sift

Benign

0.23

Sift4G

Benign

0.58

Polyphen

0.0050

Vest4

0.11

MutPred

0.39

Loss of sheet (P = 0.0037);

MVP

0.77

MPC

0.11

ClinPred

0.31

GERP RS

4.4

Varity_R

0.054

gMVP

0.25

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