6-108876232-A-G

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_032131.6(ARMC2):c.553A>G(p.Ile185Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000126 in 1,613,012 control chromosomes in the GnomAD database, including 2 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 Uncertain significance (no stars).

Frequency

Genomes: 𝑓 0.00058 ( 1 hom., cov: 32)

Exomes 𝑓: 0.000079 ( 1 hom. )

Consequence

ARMC2
NM_032131.6 missense

Scores

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: -1.86

Variant links:

Genes affected

ARMC2 (HGNC:23045): (armadillo repeat containing 2) Involved in sperm axoneme assembly. Implicated in spermatogenic failure 38. [provided by Alliance of Genome Resources, Apr 2022]

ARMC2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.007136315).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ARMC2	NM_032131.6 linkuse as main transcript	c.553A>G	p.Ile185Val	missense_variant	5/18	ENST00000392644.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ARMC2	ENST00000392644.9 linkuse as main transcript	c.553A>G	p.Ile185Val	missense_variant	5/18	1	NM_032131.6	P1	Q8NEN0-1
ARMC2	ENST00000368972.7 linkuse as main transcript	c.58A>G	p.Ile20Val	missense_variant	4/17	2			Q8NEN0-2
ARMC2	ENST00000237512.4 linkuse as main transcript	c.553A>G	p.Ile185Val	missense_variant	5/5	2
ARMC2	ENST00000414610.1 linkuse as main transcript	c.109A>G	p.Ile37Val	missense_variant	2/3	5

Frequencies

GnomAD3 genomes

AF:

0.000585

AC:

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00193

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00154

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:

0.000248

AC:

AN:

250062

Hom.:

AF XY:

0.000170

AC XY:

AN XY:

135096

show subpopulations

Gnomad AFR exome

AF:

0.00191

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00158

Gnomad SAS exome

AF:

0.0000661

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000787

AC:

115

AN:

1460684

Hom.:

Cov.:

AF XY:

0.0000743

AC XY:

AN XY:

726522

show subpopulations

Gnomad4 AFR exome

AF:

0.00173

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00119

Gnomad4 SAS exome

AF:

0.0000349

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.0000663

GnomAD4 genome

AF:

0.000584

AC:

AN:

152328

Hom.:

Cov.:

AF XY:

0.000470

AC XY:

AN XY:

74486

show subpopulations

Gnomad4 AFR

AF:

0.00192

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00154

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000133

Hom.:

Bravo

AF:

0.000604

ESP6500AA

AF:

0.00204

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000255

AC:

Asia WGS

AF:

0.00115

AC:

AN:

3476

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

Department of Pathology and Laboratory Medicine, Sinai Health System

The ARMC2 p.Ile185Val variant was not identified in the literature nor was it identified in ClinVar or LOVD 3.0. The variant was identified in dbSNP (ID: rs143895116) and in control databases in 83 of 281460 chromosomes (1 homozygous) at a frequency of 0.0002949 (Genome Aggregation Database March 6, 2019, v2.1.1). The variant was observed in the following populations: African in 47 of 24916 chromosomes (freq: 0.001886), East Asian in 33 of 19942 chromosomes (freq: 0.001655), South Asian in 2 of 30244 chromosomes (freq: 0.000066) and Latino in 1 of 35164 chromosomes (freq: 0.000028), but was not observed in the Ashkenazi Jewish, European (Finnish), European (non-Finnish), or Other populations. The p.Ile185 residue is not conserved in mammals and computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) do not suggest a high likelihood of impact to the protein; however, this information is not predictive enough to rule out pathogenicity. The variant occurs outside of the splicing consensus sequence and in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) do not predict a difference in splicing. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time. This variant is classified as a variant of uncertain significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.066

BayesDel_addAF

Benign

-0.64

BayesDel_noAF

Benign

-0.70

Cadd

Benign

0.0020

Dann

Benign

0.41

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.011

LIST_S2

Benign

0.50

T;T;T

M_CAP

Benign

0.0033

MetaRNN

Benign

0.0071

T;T;T

MetaSVM

Benign

-1.1

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.22

PROVEAN

Benign

0.040

N;N;N

REVEL

Benign

0.018

Sift

Benign

0.56

T;T;T

Sift4G

Benign

1.0

T;T;T

Polyphen

0.0

.;B;.

Vest4

0.051

MVP

0.26

MPC

0.11

ClinPred

0.0020

GERP RS

-4.3

Varity_R

0.018

gMVP

0.13

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