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GeneBe

18-8784055-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001395333.1(MTCL1):c.2023C>T(p.Arg675Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000031 in 1,613,308 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

MTCL1
NM_001395333.1 missense

Scores

4
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.41
Variant links:
Genes affected
MTCL1 (HGNC:29121): (microtubule crosslinking factor 1) Enables microtubule binding activity. Predicted to be involved in establishment or maintenance of epithelial cell apical/basal polarity; microtubule bundle formation; and positive regulation of protein targeting to membrane. Located in midbody and spindle pole. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.18739384).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MTCL1NM_001395333.1 linkuse as main transcriptc.2023C>T p.Arg675Trp missense_variant 5/15 ENST00000695636.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MTCL1ENST00000695636.1 linkuse as main transcriptc.2023C>T p.Arg675Trp missense_variant 5/15 NM_001395333.1 A2

Frequencies

GnomAD3 genomes
AF:
0.000105
AC:
16
AN:
152166
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000338
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000404
AC:
10
AN:
247656
Hom.:
0
AF XY:
0.0000296
AC XY:
4
AN XY:
135016
show subpopulations
Gnomad AFR exome
AF:
0.000267
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000547
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000233
AC:
34
AN:
1461142
Hom.:
0
Cov.:
92
AF XY:
0.0000234
AC XY:
17
AN XY:
726850
show subpopulations
Gnomad4 AFR exome
AF:
0.000358
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000108
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.000105
AC:
16
AN:
152166
Hom.:
0
Cov.:
33
AF XY:
0.0000942
AC XY:
7
AN XY:
74330
show subpopulations
Gnomad4 AFR
AF:
0.000338
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000953
Hom.:
0
Bravo
AF:
0.0000718
ExAC
AF:
0.0000330
AC:
4
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 12, 2021The c.943C>T (p.R315W) alteration is located in exon 6 (coding exon 4) of the MTCL1 gene. This alteration results from a C to T substitution at nucleotide position 943, causing the arginine (R) at amino acid position 315 to be replaced by a tryptophan (W). 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
0.11
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.53
Cadd
Uncertain
24
Dann
Benign
0.96
DEOGEN2
Benign
0.070
T;.;.;.
Eigen
Uncertain
0.22
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.88
D;D;.;D
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.19
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.0
N;.;.;.
MutationTaster
Benign
1.0
D;N;N;N;N
PrimateAI
Benign
0.38
T
REVEL
Benign
0.11
Sift4G
Benign
0.13
T;D;D;D
Polyphen
1.0
.;.;D;D
Vest4
0.27
MVP
0.62
MPC
0.34
ClinPred
0.13
T
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2
Varity_R
0.12
gMVP
0.41

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs780158820; hg19: chr18-8784053; COSMIC: COSV100095530; COSMIC: COSV100095530; API