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GeneBe

8-17305850-T-C

Variant summary

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

The NM_004686.5(MTMR7):c.1259A>G(p.Asn420Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000341 in 1,613,702 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

MTMR7
NM_004686.5 missense

Scores

12
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.03
Variant links:
Genes affected
MTMR7 (HGNC:7454): (myotubularin related protein 7) This gene encodes a member of the myotubularin family of tyrosine/dual-specificity phosphatases. The encoded protein is characterized by four distinct domains that are conserved among all members of the myotubularin family: the glucosyltransferase, Rab-like GTPase activator and myotubularins domain, the Rac-induced recruitment domain, the protein tyrosine phosphatases and dual-specificity phosphatases domain and the suppressor of variegation 3-9, enhancer-of-zeste, and trithorax interaction domain. This protein dephosphorylates the target substrates phosphatidylinositol 3-phosphate and inositol 1,3-bisphosphate. A pseudogene of this gene is found on chromosome 5. [provided by RefSeq, Mar 2009]

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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
MTMR7NM_004686.5 linkuse as main transcriptc.1259A>G p.Asn420Ser missense_variant 11/14 ENST00000180173.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MTMR7ENST00000180173.10 linkuse as main transcriptc.1259A>G p.Asn420Ser missense_variant 11/141 NM_004686.5 P1Q9Y216-1
MTMR7ENST00000521857.5 linkuse as main transcriptc.1259A>G p.Asn420Ser missense_variant 11/135 Q9Y216-2
MTMR7ENST00000519590.5 linkuse as main transcriptn.271A>G non_coding_transcript_exon_variant 2/44
MTMR7ENST00000519763.1 linkuse as main transcriptn.395A>G non_coding_transcript_exon_variant 4/54

Frequencies

GnomAD3 genomes
AF:
0.000105
AC:
16
AN:
152172
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000398
AC:
10
AN:
251230
Hom.:
0
AF XY:
0.0000663
AC XY:
9
AN XY:
135782
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000229
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000267
AC:
39
AN:
1461412
Hom.:
0
Cov.:
31
AF XY:
0.0000358
AC XY:
26
AN XY:
727038
show subpopulations
Gnomad4 AFR exome
AF:
0.000120
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000220
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000117
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.000105
AC:
16
AN:
152290
Hom.:
0
Cov.:
33
AF XY:
0.000107
AC XY:
8
AN XY:
74470
show subpopulations
Gnomad4 AFR
AF:
0.000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000514
Hom.:
0
Bravo
AF:
0.0000416
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000741
AC:
9

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 GeneticsNov 19, 2022The c.1259A>G (p.N420S) alteration is located in exon 11 (coding exon 11) of the MTMR7 gene. This alteration results from a A to G substitution at nucleotide position 1259, causing the asparagine (N) at amino acid position 420 to be replaced by a serine (S). 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
0.072
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.18
Cadd
Uncertain
23
Dann
Uncertain
1.0
DEOGEN2
Uncertain
0.75
D;.
Eigen
Uncertain
0.38
Eigen_PC
Uncertain
0.43
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.96
D;D
M_CAP
Benign
0.054
D
MetaRNN
Uncertain
0.55
D;D
MetaSVM
Uncertain
0.48
D
MutationAssessor
Uncertain
2.2
M;M
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.58
T
PROVEAN
Uncertain
-3.3
D;D
REVEL
Uncertain
0.60
Sift
Benign
0.10
T;T
Sift4G
Benign
0.12
T;T
Polyphen
0.99
D;P
Vest4
0.62
MVP
0.94
MPC
0.14
ClinPred
0.33
T
GERP RS
4.9
Varity_R
0.30
gMVP
0.74

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs201455556; hg19: chr8-17163359; API