Genetic Variant MTUS1:p.Gln1254His (chr8-17645977-C-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001363059.2(MTUS1):c.3762G>T(p.Gln1254His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,276 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

MTUS1
NM_001363059.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.54

Publications

0 publications found

Variant links:

Genes affected

MTUS1 (HGNC:29789): (microtubule associated scaffold protein 1) This gene encodes a protein which contains a C-terminal domain able to interact with the angiotension II (AT2) receptor and a large coiled-coil region allowing dimerization. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. One of the transcript variants has been shown to encode a mitochondrial protein that acts as a tumor suppressor and partcipates in AT2 signaling pathways. Other variants may encode nuclear or transmembrane proteins but it has not been determined whether they also participate in AT2 signaling pathways. [provided by RefSeq, Jul 2008]

MTUS1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.18051523).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MTUS1	NM_001363059.2 link	c.3762G>T	p.Gln1254His	missense_variant	Exon 15 of 15	ENST00000693296.1	NP_001349988.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MTUS1	ENST00000693296.1 link	c.3762G>T	p.Gln1254His	missense_variant	Exon 15 of 15		NM_001363059.2	ENSP00000509719.1		Q9ULD2-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461276

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726906

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33464

American (AMR)

AF:

0.00

AC:

AN:

44700

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26124

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86146

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53398

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5464

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111950

Other (OTH)

AF:

0.00

AC:

AN:

60332

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 07, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.3762G>T (p.Q1254H) alteration is located in exon 15 (coding exon 14) of the MTUS1 gene. This alteration results from a G to T substitution at nucleotide position 3762, causing the glutamine (Q) at amino acid position 1254 to be replaced by a histidine (H). 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

0.24

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.47

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.028

.;.;.;.;T;.;.

Eigen

Benign

-0.13

Eigen_PC

Benign

-0.038

FATHMM_MKL

Uncertain

0.88

LIST_S2

Uncertain

0.92

D;D;D;D;D;.;D

M_CAP

Benign

0.0046

MetaRNN

Benign

0.18

T;T;T;T;T;T;T

MetaSVM

Benign

-1.1

PhyloP100

1.5

PrimateAI

Benign

0.39

PROVEAN

Benign

-2.1

N;N;N;N;N;N;.

REVEL

Benign

0.087

Sift

Benign

0.21

T;T;T;T;T;T;.

Sift4G

Benign

0.20

T;T;T;T;T;T;T

Polyphen

0.72, 0.043, 0.16

.;P;B;B;P;P;.

Vest4

0.12

MutPred

0.079

.;.;.;.;Gain of methylation at R1257 (P = 0.0872);.;.;

MVP

0.51

ClinPred

0.98

GERP RS

3.6

Varity_R

0.16

gMVP

0.58

Mutation Taster

=83/17

polymorphism

(source)

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

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8-17645977-C-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over