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GeneBe

6-108858251-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_032131.6(ARMC2):c.271C>T(p.Arg91Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000186 in 1,609,268 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

ARMC2
NM_032131.6 missense

Scores

7
9
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.68
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ARMC2NM_032131.6 linkuse as main transcriptc.271C>T p.Arg91Cys missense_variant 3/18 ENST00000392644.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ARMC2ENST00000392644.9 linkuse as main transcriptc.271C>T p.Arg91Cys missense_variant 3/181 NM_032131.6 P1Q8NEN0-1
ARMC2ENST00000237512.4 linkuse as main transcriptc.271C>T p.Arg91Cys missense_variant 3/52
ARMC2ENST00000368972.7 linkuse as main transcriptc.-205+3766C>T intron_variant 2 Q8NEN0-2

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152148
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000945
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000201
AC:
5
AN:
249124
Hom.:
0
AF XY:
0.0000223
AC XY:
3
AN XY:
134528
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000992
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000178
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000185
AC:
27
AN:
1457120
Hom.:
0
Cov.:
29
AF XY:
0.00000828
AC XY:
6
AN XY:
724874
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:
0.0000349
Gnomad4 FIN exome
AF:
0.0000188
Gnomad4 NFE exome
AF:
0.0000207
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152148
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74320
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000945
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000151
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.0000549
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
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 19, 2022The c.271C>T (p.R91C) alteration is located in exon 3 (coding exon 2) of the ARMC2 gene. This alteration results from a C to T substitution at nucleotide position 271, causing the arginine (R) at amino acid position 91 to be replaced by a cysteine (C). 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
0.17
BayesDel_addAF
Pathogenic
0.21
D
BayesDel_noAF
Pathogenic
0.27
Cadd
Pathogenic
29
Dann
Pathogenic
1.0
DEOGEN2
Benign
0.27
T;.
Eigen
Pathogenic
0.79
Eigen_PC
Pathogenic
0.76
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.93
D;D
M_CAP
Uncertain
0.13
D
MetaRNN
Uncertain
0.62
D;D
MetaSVM
Uncertain
0.27
D
MutationAssessor
Uncertain
2.7
M;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.56
T
PROVEAN
Uncertain
-4.2
D;D
REVEL
Uncertain
0.40
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;.
Vest4
0.55
MutPred
0.23
Loss of methylation at R91 (P = 0.0329);Loss of methylation at R91 (P = 0.0329);
MVP
0.94
MPC
0.69
ClinPred
0.99
D
GERP RS
4.8
Varity_R
0.47
gMVP
0.47

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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: rs771178912; hg19: chr6-109179454; COSMIC: COSV99410874; COSMIC: COSV99410874; API