6-35738047-C-T

Variant names:

• chr6-35738047-C-T
• rs778674760
• NM_001286574.2:c.184C>T

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 1P and 6B. PP2 BP4_Moderate BS2

The NM_001286574.2(ARMC12):​c.184C>T​(p.Arg62Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000583 in 1,613,518 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R62Q) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000057 (2 hom.)
• Consequence: ARMC12 NM_001286574.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.89
• Publications: 2 publications found

Genes affected

ARMC12 (HGNC:21099): (armadillo repeat containing 12) Located in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Likely_benign. The variant received -5 ACMG points.

• PP2: Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 3 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Gene score misZ: 0.27213 (below the threshold of 3.09). Trascript score misZ: 1.0694 (below the threshold of 3.09).
• BP4: Computational evidence support a benign effect (MetaRNN=0.14840156).
• BS2: High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ARMC12	NM_001286574.2	c.184C>T	p.Arg62Trp	missense_variant	Exon 2 of 6	ENST00000373866.4	NP_001273503.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ARMC12	ENST00000373866.4	c.184C>T	p.Arg62Trp	missense_variant	Exon 2 of 6	3	NM_001286574.2	ENSP00000362973.3

Frequencies

GnomAD3 genomes AF: 0.0000657 AC: 10 AN: 152162 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.000121

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00104

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.000128 AC: 32 AN: 250854 AF XY: 0.000147

Gnomad AFR exome AF: 0.000123

Gnomad AMR exome AF: 0.0000289

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000163

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000264

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000575 AC: 84 AN: 1461356 Hom.: 2 Cov.: 30 AF XY: 0.0000757 AC XY: 55 AN XY: 727004

African (AFR) AF: 0.0000597 AC: 2 AN: 33480

American (AMR) AF: 0.0000224 AC: 1 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.000227 AC: 9 AN: 39694

South Asian (SAS) AF: 0.000638 AC: 55 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52926

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 0.0000135 AC: 15 AN: 1111992

Other (OTH) AF: 0.0000331 AC: 2 AN: 60388

GnomAD4 genome AF: 0.0000657 AC: 10 AN: 152162 Hom.: 0 Cov.: 32 AF XY: 0.0000807 AC XY: 6 AN XY: 74330

African (AFR) AF: 0.000121 AC: 5 AN: 41444

American (AMR) AF: 0.00 AC: 0 AN: 15280

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5186

South Asian (SAS) AF: 0.00104 AC: 5 AN: 4822

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10616

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68030

Other (OTH) AF: 0.00 AC: 0 AN: 2086

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000264

ExAC AF: 0.000140 AC: 17

Asia WGS AF: 0.000577 AC: 2 AN: 3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Apr 25, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.265C>T (p.R89W) alteration is located in exon 2 (coding exon 2) of the ARMC12 gene. This alteration results from a C to T substitution at nucleotide position 265, causing the arginine (R) at amino acid position 89 to be replaced by a tryptophan (W). 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	0.15
BayesDel_addAF	Benign	-0.31	T
BayesDel_noAF	Benign	-0.30
CADD	Pathogenic	30
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.048	.;.;T
Eigen	Uncertain	0.53
Eigen_PC	Uncertain	0.56
FATHMM_MKL	Benign	0.69	D
LIST_S2	Uncertain	0.87	D;D;D
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.15	T;T;T
MetaSVM	Benign	-0.84	T
MutationAssessor	Uncertain	2.0	M;.;M
PhyloP100		1.9
PrimateAI	Uncertain	0.50	T
PROVEAN	Benign	-1.5	N;N;N
REVEL	Benign	0.21
Sift	Uncertain	0.0050	D;D;D
Sift4G	Pathogenic	0.0010	D;D;D
Polyphen		1.0	D;D;.
Vest4		0.51
MutPred		0.53		.;Loss of solvent accessibility (P = 0.0199);.;
MVP		0.70
MPC		0.50
ClinPred		0.14	T
GERP RS		5.6
Varity_R		0.15
gMVP		0.40
Mutation Taster		=96/4	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.14		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs778674760; hg19: chr6-35705824; COSMIC: COSV55360130; COSMIC: COSV55360130;