chr1-19683109-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_181719.7(TMCO4):​c.1836G>A​(p.Met612Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,612,426 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TMCO4
NM_181719.7 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.200
Variant links:
Genes affected
TMCO4 (HGNC:27393): (transmembrane and coiled-coil domains 4) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.036064327).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMCO4NM_181719.7 linkuse as main transcriptc.1836G>A p.Met612Ile missense_variant 16/16 ENST00000294543.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMCO4ENST00000294543.11 linkuse as main transcriptc.1836G>A p.Met612Ile missense_variant 16/161 NM_181719.7 P1Q5TGY1-1
TMCO4ENST00000375127.5 linkuse as main transcriptc.1657+179G>A intron_variant 1
TMCO4ENST00000489814.5 linkuse as main transcriptn.855G>A non_coding_transcript_exon_variant 5/52

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152244
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000402
AC:
1
AN:
248514
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
134434
show subpopulations
Gnomad AFR exome
AF:
0.0000622
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1460182
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
726304
show subpopulations
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:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152244
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74386
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000329
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.00000824
AC:
1

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 GeneticsJun 17, 2024The c.1836G>A (p.M612I) alteration is located in exon 16 (coding exon 13) of the TMCO4 gene. This alteration results from a G to A substitution at nucleotide position 1836, causing the methionine (M) at amino acid position 612 to be replaced by an isoleucine (I). 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
0.12
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.71
CADD
Benign
12
DANN
Benign
0.59
DEOGEN2
Benign
0.00045
T
Eigen
Benign
-0.79
Eigen_PC
Benign
-0.76
FATHMM_MKL
Benign
0.041
N
LIST_S2
Benign
0.70
T
M_CAP
Benign
0.0045
T
MetaRNN
Benign
0.036
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.55
N
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.30
T
PROVEAN
Benign
-0.45
N
REVEL
Benign
0.097
Sift
Benign
0.40
T
Sift4G
Benign
0.67
T
Polyphen
0.0
B
Vest4
0.055
MutPred
0.14
Loss of catalytic residue at M612 (P = 0.0081);
MVP
0.048
MPC
0.11
ClinPred
0.022
T
GERP RS
2.4
Varity_R
0.089
gMVP
0.091

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: rs748851417; hg19: chr1-20009602; API