chr15-37938158-C-A

Variant summary

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

The NM_152453.4(TMCO5A):​c.316C>A​(p.Leu106Ile) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000483 in 1,572,048 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

TMCO5A
NM_152453.4 missense, splice_region

Scores

2
17
Splicing: ADA: 0.0002746
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.560
Variant links:
Genes affected
TMCO5A (HGNC:28558): (transmembrane and coiled-coil domains 5A) Predicted to be located in membrane. 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=0.025237948).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TMCO5ANM_152453.4 linkuse as main transcriptc.316C>A p.Leu106Ile missense_variant, splice_region_variant 6/12 ENST00000319669.5 NP_689666.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TMCO5AENST00000319669.5 linkuse as main transcriptc.316C>A p.Leu106Ile missense_variant, splice_region_variant 6/121 NM_152453.4 ENSP00000327234 P1Q8N6Q1-1

Frequencies

GnomAD3 genomes
AF:
0.000164
AC:
25
AN:
152082
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00125
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.000957
GnomAD3 exomes
AF:
0.0000931
AC:
18
AN:
193354
Hom.:
0
AF XY:
0.0000971
AC XY:
10
AN XY:
103014
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000328
Gnomad ASJ exome
AF:
0.000110
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000621
Gnomad OTH exome
AF:
0.000394
GnomAD4 exome
AF:
0.0000359
AC:
51
AN:
1419848
Hom.:
0
Cov.:
30
AF XY:
0.0000370
AC XY:
26
AN XY:
702668
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000389
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:
0.0000275
Gnomad4 OTH exome
AF:
0.0000341
GnomAD4 genome
AF:
0.000164
AC:
25
AN:
152200
Hom.:
0
Cov.:
32
AF XY:
0.000242
AC XY:
18
AN XY:
74408
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00124
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000947
Alfa
AF:
0.0000844
Hom.:
0
Bravo
AF:
0.000140
ExAC
AF:
0.0000589
AC:
7

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 GeneticsApr 07, 2023The c.316C>A (p.L106I) alteration is located in exon 5 (coding exon 4) of the TMCO5A gene. This alteration results from a C to A substitution at nucleotide position 316, causing the leucine (L) at amino acid position 106 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
0.089
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.39
CADD
Benign
16
DANN
Benign
0.64
DEOGEN2
Benign
0.0088
T;.;T;T
Eigen
Uncertain
0.35
Eigen_PC
Uncertain
0.36
FATHMM_MKL
Benign
0.73
D
LIST_S2
Benign
0.72
T;T;T;T
M_CAP
Benign
0.0035
T
MetaRNN
Benign
0.025
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.3
.;L;.;L
MutationTaster
Benign
0.94
N;N;N;N
PrimateAI
Benign
0.44
T
PROVEAN
Benign
0.29
N;N;N;N
REVEL
Benign
0.089
Sift
Benign
0.99
T;T;T;T
Sift4G
Benign
0.17
T;T;T;T
Polyphen
0.99, 0.99
.;D;.;D
Vest4
0.23, 0.24, 0.26
MutPred
0.23
Loss of catalytic residue at L106 (P = 0.0806);Loss of catalytic residue at L106 (P = 0.0806);Loss of catalytic residue at L106 (P = 0.0806);Loss of catalytic residue at L106 (P = 0.0806);
MVP
0.35
MPC
0.13
ClinPred
0.17
T
GERP RS
4.3
Varity_R
0.071
gMVP
0.021

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00027
dbscSNV1_RF
Benign
0.020
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: rs778817829; hg19: chr15-38230359; API