NM_016156.6:c.1551C>G

Variant names:

• chr11-95838136-G-C
• NM_016156.6:c.1551C>G

Variant summary

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

The NM_016156.6(MTMR2):​c.1551C>G​(p.Phe517Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,044 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: MTMR2 NM_016156.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.37

Genes affected

MTMR2 (HGNC:7450): (myotubularin related protein 2) This gene is a member of the myotubularin family of phosphoinositide lipid phosphatases. The encoded protein possesses phosphatase activity towards phosphatidylinositol-3-phosphate and phosphatidylinositol-3,5-bisphosphate. Mutations in this gene are a cause of Charcot-Marie-Tooth disease type 4B, an autosomal recessive demyelinating neuropathy. Alternatively spliced transcript variants encoding multiple isoforms have been found for this gene. [provided by RefSeq, Aug 2011]

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, 0.969

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MTMR2	NM_016156.6	c.1551C>G	p.Phe517Leu	missense_variant	Exon 13 of 15	ENST00000346299.10	NP_057240.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MTMR2	ENST00000346299.10	c.1551C>G	p.Phe517Leu	missense_variant	Exon 13 of 15	1	NM_016156.6	ENSP00000345752.6

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1459044 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 725972

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: 9.01e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.51	D
BayesDel_noAF	Pathogenic	0.49
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Pathogenic	0.97	D;.;.;.;D
Eigen	Benign	0.16
Eigen_PC	Benign	-0.066
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Pathogenic	0.98	D;D;.;.;D
M_CAP	Pathogenic	0.78	D
MetaRNN	Pathogenic	0.97	D;D;D;D;D
MetaSVM	Pathogenic	0.96	D
MutationAssessor	Pathogenic	4.1	H;.;.;.;.
PrimateAI	Pathogenic	0.82	D
PROVEAN	Pathogenic	-5.8	D;D;D;D;D
REVEL	Pathogenic	0.88
Sift	Uncertain	0.0020	D;D;D;D;D
Sift4G	Uncertain	0.0040	D;D;D;D;.
Polyphen		1.0	D;.;.;.;.
Vest4		0.91
MutPred		0.86		Gain of sheet (P = 0.1945);.;.;.;.;
MVP		0.94
MPC		1.1
ClinPred		1.0	D
GERP RS		-0.78
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.96
gMVP		0.89

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: chr11-95571300;