Genetic Variant NM_016608.2:c.96C>A (chrX-101553026-C-A) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_016608.2(ARMCX1):c.96C>A(p.Asp32Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000802 in 1,209,545 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 31 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000063 ( 0 hom., 1 hem., cov: 22)

Exomes 𝑓: 0.000082 ( 0 hom. 30 hem. )

Consequence

ARMCX1
NM_016608.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.316

Variant links:

Genes affected

ARMCX1 (HGNC:18073): (armadillo repeat containing X-linked 1) This gene encodes a member of the ALEX family of proteins and may play a role in tumor suppression. The encoded protein contains a potential N-terminal transmembrane domain and two Armadillo (arm) repeats. Other proteins containing the arm repeat are involved in development, maintenance of tissue integrity, and tumorigenesis. This gene is closely localized with other family members, including ALEX2 and ALEX3, on the X chromosome. [provided by RefSeq, Jul 2008]

ARMCX1 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.14195108).

BS2

High Hemizygotes in GnomAdExome4 at 30 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ARMCX1	NM_016608.2 link	c.96C>A	p.Asp32Glu	missense_variant	Exon 4 of 4	ENST00000372829.8	NP_057692.1	Q9P291A0A024RCI6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ARMCX1	ENST00000372829.8 link	c.96C>A	p.Asp32Glu	missense_variant	Exon 4 of 4	1	NM_016608.2	ENSP00000361917.3		Q9P291

Frequencies

GnomAD3 genomes

AF:

0.0000628

AC:

AN:

111379

Hom.:

Cov.:

AF XY:

0.0000297

AC XY:

AN XY:

33615

show subpopulations

Gnomad AFR

AF:

0.0000327

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:

0.000113

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000602

AC:

AN:

182869

Hom.:

AF XY:

0.0000593

AC XY:

AN XY:

67401

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000146

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:

0.0000859

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000820

AC:

AN:

1098166

Hom.:

Cov.:

AF XY:

0.0000825

AC XY:

AN XY:

363522

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000142

Gnomad4 ASJ exome

AF:

0.0000516

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000914

Gnomad4 OTH exome

AF:

0.000152

GnomAD4 genome

AF:

0.0000628

AC:

AN:

111379

Hom.:

Cov.:

AF XY:

0.0000297

AC XY:

AN XY:

33615

show subpopulations

Gnomad4 AFR

AF:

0.0000327

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:

0.000113

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.0000680

ExAC

AF:

0.0000412

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 28, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.96C>A (p.D32E) alteration is located in exon 4 (coding exon 1) of the ARMCX1 gene. This alteration results from a C to A substitution at nucleotide position 96, causing the aspartic acid (D) at amino acid position 32 to be replaced by a glutamic acid (E). 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

-0.53

BayesDel_noAF

Benign

-0.74

CADD

Benign

6.1

DANN

Uncertain

0.99

DEOGEN2

Benign

0.032

FATHMM_MKL

Benign

0.28

LIST_S2

Benign

0.45

M_CAP

Benign

0.0058

MetaRNN

Benign

0.14

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.97

PrimateAI

Benign

0.41

PROVEAN

Benign

0.35

REVEL

Benign

0.10

Sift

Benign

0.14

Sift4G

Benign

0.46

Polyphen

0.99

Vest4

0.12

MutPred

0.40

Loss of sheet (P = 0.1158);

MVP

0.41

MPC

0.76

ClinPred

0.12

GERP RS

-1.7

Varity_R

0.064

gMVP

0.29

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