Genetic Variant ARMCX5:p.Ile170Met (chrX-102602651-A-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_001168478.2(ARMCX5):c.510A>G(p.Ile170Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000182 in 1,097,684 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 23)

Exomes 𝑓: 0.0000018 ( 0 hom. 0 hem. )

Consequence

ARMCX5
NM_001168478.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.00900

Variant links:

Genes affected

ARMCX5 (HGNC:25772): (armadillo repeat containing X-linked 5)

ARMCX5 links:

ARMCX5-GPRASP2 (HGNC:):

ARMCX5-GPRASP2 links:

ARMCX5-GPRASP2 (HGNC:42000): (ARMCX5-GPRASP2 readthrough) This locus represents naturally occurring readthrough transcription among the adjacent armadillo repeat containing, X-linked 5 (ARMCX5), G protein-coupled receptor associated sorting proteins 1 and 2 (GPRASP1 and GPRASP2), basic helix-loop-helix family member b9 (BHLHB9), and long intergenic non-protein coding RNA 630 (LINC00630) genes on chromosome X. Transcripts may make use of multiple alternative promoters and polyadenylation signals in this region. Readthrough transcripts may produce proteins identical to the proteins encoded by GPRASP2 or BHLHB9. [provided by RefSeq, Apr 2017]

ARMCX5-GPRASP2 links:

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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=0.070080966).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ARMCX5	NM_001168478.2 link	c.510A>G	p.Ile170Met	missense_variant	Exon 4 of 4	ENST00000473968.7	NP_001161950.1	Q6P1M9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ARMCX5	ENST00000473968.7 link	c.510A>G	p.Ile170Met	missense_variant	Exon 4 of 4	2	NM_001168478.2	ENSP00000473737.2		Q6P1M9A0A0G2JLJ9

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000182

AC:

AN:

1097684

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

363062

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.00000238

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 17, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.510A>G (p.I170M) alteration is located in exon 6 (coding exon 1) of the ARMCX5 gene. This alteration results from a A to G substitution at nucleotide position 510, causing the isoleucine (I) at amino acid position 170 to be replaced by a methionine (M). 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

0.11

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.91

CADD

Benign

4.5

DANN

Benign

0.63

DEOGEN2

Benign

0.034

T;T;T

FATHMM_MKL

Benign

0.053

LIST_S2

Benign

0.46

.;.;T

M_CAP

Benign

0.0031

MetaRNN

Benign

0.070

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

N;N;N

PrimateAI

Benign

0.31

PROVEAN

Benign

-1.1

N;.;N

REVEL

Benign

0.030

Sift

Uncertain

0.012

D;.;D

Sift4G

Uncertain

0.028

D;D;D

Polyphen

0.42

B;B;B

Vest4

0.17

MutPred

0.31

Gain of disorder (P = 0.0332);Gain of disorder (P = 0.0332);Gain of disorder (P = 0.0332);

MVP

0.043

MPC

0.19

ClinPred

0.095

GERP RS

0.43

Varity_R

0.15

gMVP

0.040

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over