Variant 17-1708138-C-T details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_001164407.2(TLCD2):c.427G>A(p.Ala143Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000167 in 1,536,900 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00023 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

TLCD2
NM_001164407.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.901

Variant links:

Genes affected

TLCD2 (HGNC:33522): (TLC domain containing 2) 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]

TLCD2 links:

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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=0.021972626).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TLCD2	NM_001164407.2 linkuse as main transcript	c.427G>A	p.Ala143Thr	missense_variant	4/4	ENST00000330676.8	NP_001157879.1	A6NGC4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TLCD2	ENST00000330676.8 linkuse as main transcript	c.427G>A	p.Ala143Thr	missense_variant	4/4	2	NM_001164407.2	ENSP00000331965.6		A6NGC4

Frequencies

GnomAD3 genomes

AF:

0.000230

AC:

AN:

152192

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000916

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:

0.000191

Gnomad OTH

AF:

0.00191

GnomAD3 exomes

AF:

0.000487

AC:

AN:

139720

Hom.:

AF XY:

0.000426

AC XY:

AN XY:

75030

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00220

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000441

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000195

Gnomad OTH exome

AF:

0.000480

GnomAD4 exome

AF:

0.000160

AC:

222

AN:

1384590

Hom.:

Cov.:

AF XY:

0.000160

AC XY:

109

AN XY:

683190

show subpopulations

Gnomad4 AFR exome

AF:

0.0000317

Gnomad4 AMR exome

AF:

0.00218

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000840

Gnomad4 SAS exome

AF:

0.0000252

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000112

Gnomad4 OTH exome

AF:

0.000294

GnomAD4 genome

AF:

0.000230

AC:

AN:

152310

Hom.:

Cov.:

AF XY:

0.000295

AC XY:

AN XY:

74474

show subpopulations

Gnomad4 AFR

AF:

0.0000962

Gnomad4 AMR

AF:

0.000915

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000191

Gnomad4 OTH

AF:

0.00189

Alfa

AF:

0.000217

Hom.:

Bravo

AF:

0.000416

ExAC

AF:

0.0000416

AC:

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 submitter

clinical testing

Ambry Genetics

Apr 22, 2022

The c.427G>A (p.A143T) alteration is located in exon 4 (coding exon 4) of the TLCD2 gene. This alteration results from a G to A substitution at nucleotide position 427, causing the alanine (A) at amino acid position 143 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

Benign

0.10

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.32

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.27

Eigen

Benign

-0.19

Eigen_PC

Benign

-0.14

FATHMM_MKL

Benign

0.69

M_CAP

Benign

0.058

MetaRNN

Benign

0.022

MetaSVM

Benign

-0.69

MutationAssessor

Benign

1.6

PrimateAI

Benign

0.22

PROVEAN

Benign

-0.77

REVEL

Benign

0.15

Sift

Benign

0.097

Sift4G

Benign

0.30

Vest4

0.11

MVP

0.40

ClinPred

0.023

GERP RS

3.7

Varity_R

0.043

gMVP

0.19

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over