17-28725305-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_138463.4(TLCD1):ā€‹c.359T>Cā€‹(p.Met120Thr) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000018 in 1,613,918 control chromosomes in the GnomAD database, with no homozygous occurrence. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000085 ( 0 hom., cov: 32)
Exomes š‘“: 0.000011 ( 0 hom. )

Consequence

TLCD1
NM_138463.4 missense, splice_region

Scores

12
7
Splicing: ADA: 0.09392
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.92
Variant links:
Genes affected
TLCD1 (HGNC:25177): (TLC domain containing 1) Involved in several processes, including membrane assembly; phospholipid homeostasis; and regulation of membrane lipid distribution. Located in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TLCD1NM_138463.4 linkc.359T>C p.Met120Thr missense_variant, splice_region_variant 3/4 ENST00000292090.8 NP_612472.1 Q96CP7-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TLCD1ENST00000292090.8 linkc.359T>C p.Met120Thr missense_variant, splice_region_variant 3/41 NM_138463.4 ENSP00000292090.3 Q96CP7-1
TLCD1ENST00000394933.7 linkc.218T>C p.Met73Thr missense_variant, splice_region_variant 3/42 ENSP00000378391.3 Q96CP7-2
TLCD1ENST00000580518.1 linkc.146T>C p.Met49Thr missense_variant, splice_region_variant 3/43 ENSP00000466264.1 K7ELX5

Frequencies

GnomAD3 genomes
AF:
0.0000854
AC:
13
AN:
152152
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000290
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.0000159
AC:
4
AN:
251444
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135904
show subpopulations
Gnomad AFR exome
AF:
0.000246
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:
0.0000109
AC:
16
AN:
1461766
Hom.:
0
Cov.:
32
AF XY:
0.0000151
AC XY:
11
AN XY:
727182
show subpopulations
Gnomad4 AFR exome
AF:
0.000269
Gnomad4 AMR exome
AF:
0.0000447
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:
0.00000360
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000854
AC:
13
AN:
152152
Hom.:
0
Cov.:
32
AF XY:
0.0000673
AC XY:
5
AN XY:
74324
show subpopulations
Gnomad4 AFR
AF:
0.000290
Gnomad4 AMR
AF:
0.0000655
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:
0.0000277
Hom.:
0
Bravo
AF:
0.0000982
ExAC
AF:
0.0000330
AC:
4

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 GeneticsOct 19, 2024The c.359T>C (p.M120T) alteration is located in exon 3 (coding exon 3) of the TLCD1 gene. This alteration results from a T to C substitution at nucleotide position 359, causing the methionine (M) at amino acid position 120 to be replaced by a threonine (T). 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
Uncertain
0.54
BayesDel_addAF
Uncertain
0.015
T
BayesDel_noAF
Uncertain
0.080
CADD
Benign
23
DANN
Benign
0.88
DEOGEN2
Benign
0.39
T;.;.
Eigen
Benign
0.14
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Benign
0.75
T;T;T
M_CAP
Uncertain
0.21
D
MetaRNN
Uncertain
0.70
D;D;D
MetaSVM
Uncertain
-0.11
T
MutationAssessor
Benign
1.1
L;.;.
PrimateAI
Uncertain
0.60
T
PROVEAN
Benign
-2.2
N;N;.
REVEL
Uncertain
0.57
Sift
Uncertain
0.011
D;D;.
Sift4G
Uncertain
0.0040
D;D;.
Polyphen
0.11
B;.;.
Vest4
0.59
MutPred
0.57
Loss of catalytic residue at V116 (P = 0.0551);.;.;
MVP
0.72
MPC
0.85
ClinPred
0.98
D
GERP RS
5.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.61
gMVP
0.67

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.094
dbscSNV1_RF
Benign
0.20
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: rs868373791; hg19: chr17-27052323; COSMIC: COSV52043764; COSMIC: COSV52043764; API