NM_001127198.5:c.712G>C

Variant names:

• chr17-78124703-C-G
• NM_001127198.5:c.712G>C

Variant summary

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

The NM_001127198.5(TMC6):​c.712G>C​(p.Gly238Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000691 in 1,446,422 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: TMC6 NM_001127198.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0130

Genes affected

TMC6 (HGNC:18021): (transmembrane channel like 6) Epidermodysplasia verruciformis (EV) is an autosomal recessive dermatosis characterized by abnormal susceptibility to human papillomaviruses (HPVs) and a high rate of progression to squamous cell carcinoma on sun-exposed skin. EV is caused by mutations in either of two adjacent genes located on chromosome 17q25.3. Both of these genes encode integral membrane proteins that localize to the endoplasmic reticulum and are predicted to form transmembrane channels. This gene encodes a transmembrane channel-like protein with 10 transmembrane domains and 2 leucine zipper motifs. [provided by RefSeq, Jul 2008]

ACMG classification

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 rank	MANE	Protein	UniProt
TMC6	NM_001127198.5	c.712G>C	p.Gly238Arg	missense_variant	Exon 8 of 20	ENST00000590602.6	NP_001120670.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TMC6	ENST00000590602.6	c.712G>C	p.Gly238Arg	missense_variant	Exon 8 of 20	2	NM_001127198.5	ENSP00000465261.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.91e-7 AC: 1 AN: 1446422 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 718268

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: 9.05e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.33
BayesDel_addAF	Benign	0.0071	T
BayesDel_noAF	Benign	-0.23
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.18	T;T;T;.;.;.
Eigen	Uncertain	0.21
Eigen_PC	Benign	0.043
FATHMM_MKL	Benign	0.63	D
LIST_S2	Uncertain	0.93	.;.;D;D;D;D
M_CAP	Pathogenic	0.33	D
MetaRNN	Uncertain	0.44	T;T;T;T;T;T
MetaSVM	Benign	-0.38	T
MutationAssessor	Pathogenic	2.9	M;M;M;M;.;.
PrimateAI	Uncertain	0.56	T
PROVEAN	Uncertain	-4.2	.;D;D;D;.;.
REVEL	Uncertain	0.32
Sift	Uncertain	0.014	.;D;D;D;.;.
Sift4G	Benign	0.23	T;T;T;T;D;.
Polyphen		0.99	D;D;D;D;D;.
Vest4		0.58
MutPred		0.55		Gain of MoRF binding (P = 0.0205);Gain of MoRF binding (P = 0.0205);Gain of MoRF binding (P = 0.0205);Gain of MoRF binding (P = 0.0205);.;Gain of MoRF binding (P = 0.0205);
MVP		0.77
MPC		0.70
ClinPred		0.98	D
GERP RS		2.2
Varity_R		0.23
gMVP		0.56

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: chr17-76120784;