1-220796650-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_022746.4(MTARC1):​c.457G>A​(p.Gly153Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000663 in 1,597,764 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00027 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000045 ( 0 hom. )

Consequence

MTARC1
NM_022746.4 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.19
Variant links:
Genes affected
MTARC1 (HGNC:26189): (mitochondrial amidoxime reducing component 1) Enables molybdenum ion binding activity; molybdopterin cofactor binding activity; and oxidoreductase activity, acting on other nitrogenous compounds as donors. Contributes to nitrite reductase (NO-forming) activity. Involved in cellular detoxification of nitrogen compound; nitrate metabolic process; and nitric oxide biosynthetic process. Located in mitochondrion. Part of nitric-oxide synthase complex. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.043047726).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MTARC1NM_022746.4 linkuse as main transcriptc.457G>A p.Gly153Ser missense_variant 3/7 ENST00000366910.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MTARC1ENST00000366910.10 linkuse as main transcriptc.457G>A p.Gly153Ser missense_variant 3/71 NM_022746.4 P1Q5VT66-1

Frequencies

GnomAD3 genomes
AF:
0.000269
AC:
41
AN:
152202
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000941
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000897
AC:
21
AN:
234042
Hom.:
0
AF XY:
0.0000708
AC XY:
9
AN XY:
127194
show subpopulations
Gnomad AFR exome
AF:
0.000864
Gnomad AMR exome
AF:
0.0000333
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000247
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000450
AC:
65
AN:
1445444
Hom.:
0
Cov.:
29
AF XY:
0.0000487
AC XY:
35
AN XY:
719050
show subpopulations
Gnomad4 AFR exome
AF:
0.00105
Gnomad4 AMR exome
AF:
0.000121
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000262
Gnomad4 SAS exome
AF:
0.000143
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000452
Gnomad4 OTH exome
AF:
0.000134
GnomAD4 genome
AF:
0.000269
AC:
41
AN:
152320
Hom.:
0
Cov.:
32
AF XY:
0.000269
AC XY:
20
AN XY:
74480
show subpopulations
Gnomad4 AFR
AF:
0.000938
Gnomad4 AMR
AF:
0.0000653
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000270
Hom.:
0
Bravo
AF:
0.000272
ESP6500AA
AF:
0.000908
AC:
4
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000107
AC:
13

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 submitterclinical testingAmbry GeneticsDec 05, 2022The c.457G>A (p.G153S) alteration is located in exon 3 (coding exon 3) of the MARC1 gene. This alteration results from a G to A substitution at nucleotide position 457, causing the glycine (G) at amino acid position 153 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
0.10
BayesDel_addAF
Benign
-0.46
T
BayesDel_noAF
Benign
-0.49
CADD
Benign
12
DANN
Benign
0.90
DEOGEN2
Benign
0.044
T
Eigen
Benign
-0.57
Eigen_PC
Benign
-0.66
FATHMM_MKL
Benign
0.68
D
LIST_S2
Benign
0.66
T
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.043
T
MetaSVM
Benign
-0.77
T
MutationAssessor
Uncertain
2.6
M
MutationTaster
Benign
0.51
N
PrimateAI
Benign
0.28
T
PROVEAN
Uncertain
-3.9
D
REVEL
Benign
0.049
Sift
Benign
0.17
T
Sift4G
Benign
0.20
T
Polyphen
0.017
B
Vest4
0.17
MVP
0.18
MPC
0.18
ClinPred
0.065
T
GERP RS
0.89
Varity_R
0.15
gMVP
0.51

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.

Other links and lift over

dbSNP: rs144875280; hg19: chr1-220969992; API