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GeneBe

1-19740902-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_181719.7(TMCO4):c.917G>A(p.Arg306His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000775 in 1,613,778 control chromosomes in the GnomAD database, including 2 homozygotes. 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: 𝑓 0.00011 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000074 ( 2 hom. )

Consequence

TMCO4
NM_181719.7 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.87
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.

BP4
Computational evidence support a benign effect (MetaRNN=0.10815799).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMCO4NM_181719.7 linkuse as main transcriptc.917G>A p.Arg306His missense_variant 11/16 ENST00000294543.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMCO4ENST00000294543.11 linkuse as main transcriptc.917G>A p.Arg306His missense_variant 11/161 NM_181719.7 P1Q5TGY1-1
TMCO4ENST00000375127.5 linkuse as main transcriptc.917G>A p.Arg306His missense_variant 10/161
TMCO4ENST00000489135.5 linkuse as main transcriptn.803G>A non_coding_transcript_exon_variant 7/91

Frequencies

GnomAD3 genomes
AF:
0.000112
AC:
17
AN:
152216
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000132
AC:
33
AN:
250154
Hom.:
0
AF XY:
0.000140
AC XY:
19
AN XY:
135268
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000348
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000262
Gnomad FIN exome
AF:
0.0000464
Gnomad NFE exome
AF:
0.0000886
Gnomad OTH exome
AF:
0.000328
GnomAD4 exome
AF:
0.0000739
AC:
108
AN:
1461444
Hom.:
2
Cov.:
31
AF XY:
0.0000812
AC XY:
59
AN XY:
727034
show subpopulations
Gnomad4 AFR exome
AF:
0.000627
Gnomad4 AMR exome
AF:
0.000313
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.000220
Gnomad4 FIN exome
AF:
0.0000375
Gnomad4 NFE exome
AF:
0.0000360
Gnomad4 OTH exome
AF:
0.000133
GnomAD4 genome
AF:
0.000112
AC:
17
AN:
152334
Hom.:
0
Cov.:
32
AF XY:
0.000107
AC XY:
8
AN XY:
74478
show subpopulations
Gnomad4 AFR
AF:
0.0000962
Gnomad4 AMR
AF:
0.000653
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.0000572
Hom.:
0
Bravo
AF:
0.000110
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000778
AC:
3
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000741
AC:
9
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

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 03, 2022The c.917G>A (p.R306H) alteration is located in exon 11 (coding exon 8) of the TMCO4 gene. This alteration results from a G to A substitution at nucleotide position 917, causing the arginine (R) at amino acid position 306 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
0.074
BayesDel_addAF
Benign
-0.43
T
BayesDel_noAF
Benign
-0.55
Cadd
Benign
15
Dann
Uncertain
0.99
DEOGEN2
Benign
0.0086
T;.
Eigen
Benign
-0.39
Eigen_PC
Benign
-0.34
FATHMM_MKL
Benign
0.63
D
LIST_S2
Uncertain
0.89
D;D
M_CAP
Benign
0.010
T
MetaRNN
Benign
0.11
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.8
L;.
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-1.9
N;N
REVEL
Benign
0.052
Sift
Benign
0.13
T;T
Sift4G
Benign
0.15
T;T
Polyphen
0.011
B;.
Vest4
0.23
MVP
0.12
MPC
0.13
ClinPred
0.043
T
GERP RS
2.4
Varity_R
0.15
gMVP
0.65

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: rs185897921; hg19: chr1-20067395; API