chr1-19683066-G-C

Variant summary

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

The NM_181719.7(TMCO4):ā€‹c.1879C>Gā€‹(p.Gln627Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000207 in 1,597,470 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 (ā˜…).

Frequency

Genomes: š‘“ 0.00011 ( 0 hom., cov: 33)
Exomes š‘“: 0.000011 ( 0 hom. )

Consequence

TMCO4
NM_181719.7 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.638
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=0.02851066).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMCO4NM_181719.7 linkuse as main transcriptc.1879C>G p.Gln627Glu missense_variant 16/16 ENST00000294543.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMCO4ENST00000294543.11 linkuse as main transcriptc.1879C>G p.Gln627Glu missense_variant 16/161 NM_181719.7 P1Q5TGY1-1
TMCO4ENST00000375127.5 linkuse as main transcriptc.1657+222C>G intron_variant 1
TMCO4ENST00000489814.5 linkuse as main transcriptn.898C>G non_coding_transcript_exon_variant 5/52

Frequencies

GnomAD3 genomes
AF:
0.000112
AC:
17
AN:
152262
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000362
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.0000341
AC:
8
AN:
234754
Hom.:
0
AF XY:
0.0000315
AC XY:
4
AN XY:
126926
show subpopulations
Gnomad AFR exome
AF:
0.000451
Gnomad AMR exome
AF:
0.0000308
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:
0.0000111
AC:
16
AN:
1445208
Hom.:
0
Cov.:
31
AF XY:
0.00000975
AC XY:
7
AN XY:
717732
show subpopulations
Gnomad4 AFR exome
AF:
0.000455
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:
0.0000168
GnomAD4 genome
AF:
0.000112
AC:
17
AN:
152262
Hom.:
0
Cov.:
33
AF XY:
0.0000807
AC XY:
6
AN XY:
74394
show subpopulations
Gnomad4 AFR
AF:
0.000362
Gnomad4 AMR
AF:
0.000131
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:
0.000148
Hom.:
0
Bravo
AF:
0.000208
ESP6500AA
AF:
0.000681
AC:
3
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000494
AC:
6

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 GeneticsFeb 12, 2024The c.1879C>G (p.Q627E) alteration is located in exon 16 (coding exon 13) of the TMCO4 gene. This alteration results from a C to G substitution at nucleotide position 1879, causing the glutamine (Q) at amino acid position 627 to be replaced by a glutamic acid (E). 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
0.060
BayesDel_addAF
Benign
-0.44
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
17
DANN
Uncertain
0.99
DEOGEN2
Benign
0.0012
T
Eigen
Benign
-0.31
Eigen_PC
Benign
-0.23
FATHMM_MKL
Benign
0.075
N
LIST_S2
Benign
0.54
T
M_CAP
Benign
0.0046
T
MetaRNN
Benign
0.029
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.1
L
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.27
T
PROVEAN
Benign
0.29
N
REVEL
Benign
0.086
Sift
Uncertain
0.015
D
Sift4G
Benign
0.28
T
Polyphen
0.063
B
Vest4
0.13
MVP
0.030
MPC
0.12
ClinPred
0.041
T
GERP RS
4.5
Varity_R
0.098
gMVP
0.15

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: rs377698558; hg19: chr1-20009559; API