Genetic Variant TLCD2:p.Ala143Thr (chr17-1708138-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_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. 16/22 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

Publications

1 publications found

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 was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.021972626).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001164407.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TLCD2	NM_001164407.2	MANE Select	c.427G>A	p.Ala143Thr	missense	Exon 4 of 4	NP_001157879.1	A6NGC4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TLCD2	ENST00000330676.8	TSL:2 MANE Select	c.427G>A	p.Ala143Thr	missense	Exon 4 of 4	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

GnomAD2 exomes

AF:

0.000487

AC:

AN:

139720

AF XY:

0.000426

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 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

African (AFR)

AF:

0.0000317

AC:

AN:

31594

American (AMR)

AF:

0.00218

AC:

AN:

35700

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25182

East Asian (EAS)

AF:

0.0000840

AC:

AN:

35734

South Asian (SAS)

AF:

0.0000252

AC:

AN:

79234

European-Finnish (FIN)

AF:

0.00

AC:

AN:

34686

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5684

European-Non Finnish (NFE)

AF:

0.000112

AC:

121

AN:

1078866

Other (OTH)

AF:

0.000294

AC:

AN:

57910

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.485

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000230

AC:

AN:

152310

Hom.:

Cov.:

AF XY:

0.000295

AC XY:

AN XY:

74474

show subpopulations

African (AFR)

AF:

0.0000962

AC:

AN:

41570

American (AMR)

AF:

0.000915

AC:

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5170

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000191

AC:

AN:

68034

Other (OTH)

AF:

0.00189

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.505

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000217

Hom.:

Bravo

AF:

0.000416

ExAC

AF:

0.0000416

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.32

CADD

Benign

(source)

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

PhyloP100

0.90

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

Mutation Taster

=89/11

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over