12-47964402-G-A

Position:

• chr12-47964402-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_001143842.2(TMEM106C):​c.166G>A​(p.Gly56Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000041 in 1,461,818 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000041 (0 hom.)
• Consequence: TMEM106C NM_001143842.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 8.58

Genes affected

TMEM106C (HGNC:28775): (transmembrane protein 106C) Predicted to be located in endoplasmic reticulum membrane. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

TMEM106C (HGNC:):

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.983

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TMEM106C	NM_001143842.2	c.166G>A	p.Gly56Arg	missense_variant	2/8	ENST00000429772.7	NP_001137314.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TMEM106C	ENST00000429772.7	c.166G>A	p.Gly56Arg	missense_variant	2/8	2	NM_001143842.2	ENSP00000400471.2
TMEM106C	ENST00000552546.5	c.78+88G>A		intron_variant		4		ENSP00000448268.1
TMEM106C	ENST00000548640.5	c.78+88G>A		intron_variant		3		ENSP00000447254.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000410 AC: 6 AN: 1461818 Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3 AN XY: 727210

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: 0.00000540

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 12, 2021

The c.166G>A (p.G56R) alteration is located in exon 2 (coding exon 1) of the TMEM106C gene. This alteration results from a G to A substitution at nucleotide position 166, causing the glycine (G) at amino acid position 56 to be replaced by an arginine (R). 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	Pathogenic	0.97
BayesDel_addAF	Pathogenic	0.35	D
BayesDel_noAF	Pathogenic	0.27
CADD	Pathogenic	33
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.15	.;T;T;.;T;.;.
Eigen	Pathogenic	0.83
Eigen_PC	Pathogenic	0.75
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Uncertain	0.97	.;D;.;.;D;D;D
M_CAP	Uncertain	0.15	D
MetaRNN	Pathogenic	0.98	D;D;D;D;D;D;D
MetaSVM	Uncertain	-0.19	T
MutationAssessor	Pathogenic	3.2	M;.;M;M;M;.;M
PrimateAI	Pathogenic	0.83	D
PROVEAN	Pathogenic	-7.8	D;D;D;D;D;.;D
REVEL	Pathogenic	0.75
Sift	Pathogenic	0.0	D;D;D;D;D;.;D
Sift4G	Pathogenic	0.0	D;D;D;D;D;D;D
Polyphen		1.0	D;.;D;D;D;.;D
Vest4		0.94
MutPred		0.90		Gain of solvent accessibility (P = 0.0055);Gain of solvent accessibility (P = 0.0055);Gain of solvent accessibility (P = 0.0055);Gain of solvent accessibility (P = 0.0055);Gain of solvent accessibility (P = 0.0055);Gain of solvent accessibility (P = 0.0055);Gain of solvent accessibility (P = 0.0055);
MVP		0.58
MPC		0.83
ClinPred		1.0	D
GERP RS		4.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.91
gMVP		0.85

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.

Other links and lift over

hg19: chr12-48358185;