chr6-151468702-C-A

Variant summary

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

The NM_024573.3(ARMT1):​c.918C>A​(p.His306Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,768 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

ARMT1
NM_024573.3 missense

Scores

17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.486
Variant links:
Genes affected
ARMT1 (HGNC:17872): (acidic residue methyltransferase 1) Enables S-adenosylmethionine-dependent methyltransferase activity; enzyme binding activity; and protein carboxyl O-methyltransferase activity. Involved in methylation and regulation of response to DNA damage stimulus. [provided by Alliance of Genome Resources, Apr 2022]

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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=0.035366863).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ARMT1NM_024573.3 linkuse as main transcriptc.918C>A p.His306Gln missense_variant 5/5 ENST00000367294.4 NP_078849.1 Q9H993
ARMT1NM_001286562.2 linkuse as main transcriptc.561C>A p.His187Gln missense_variant 4/4 NP_001273491.1 Q9H993F5GZY1B4DPT6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ARMT1ENST00000367294.4 linkuse as main transcriptc.918C>A p.His306Gln missense_variant 5/51 NM_024573.3 ENSP00000356263.3 Q9H993
ARMT1ENST00000545879.5 linkuse as main transcriptc.561C>A p.His187Gln missense_variant 4/42 ENSP00000444121.1 F5GZY1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251126
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135722
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
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:
0.00000137
AC:
2
AN:
1461768
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
727186
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

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 GeneticsJul 12, 2022The c.918C>A (p.H306Q) alteration is located in exon 5 (coding exon 5) of the ARMT1 gene. This alteration results from a C to A substitution at nucleotide position 918, causing the histidine (H) at amino acid position 306 to be replaced by a glutamine (Q). 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
0.089
BayesDel_addAF
Benign
-0.47
T
BayesDel_noAF
Benign
-0.83
CADD
Benign
0.0070
DANN
Benign
0.52
DEOGEN2
Benign
0.00059
T;T
Eigen
Benign
-1.7
Eigen_PC
Benign
-1.8
FATHMM_MKL
Benign
0.046
N
LIST_S2
Benign
0.31
T;T
M_CAP
Benign
0.0023
T
MetaRNN
Benign
0.035
T;T
MetaSVM
Benign
-0.95
T
PROVEAN
Benign
0.030
N;N
REVEL
Benign
0.041
Sift
Benign
0.58
T;T
Sift4G
Benign
0.57
T;T
Polyphen
0.0
.;B
Vest4
0.041
MutPred
0.35
.;Gain of methylation at K310 (P = 0.0637);
MVP
0.048
MPC
0.13
ClinPred
0.045
T
GERP RS
-12
Varity_R
0.14
gMVP
0.19

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: rs1266945627; hg19: chr6-151789837; API