Genetic Variant NM_014346.5:c.428C>T (chr22-46793809-C-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_014346.5(TBC1D22A):c.428C>T(p.Ser143Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000213 in 1,594,328 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

TBC1D22A
NM_014346.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.34

Publications

0 publications found

Variant links:

Genes affected

TBC1D22A (HGNC:1309): (TBC1 domain family member 22A) Enables 14-3-3 protein binding activity and protein homodimerization activity. Predicted to be involved in activation of GTPase activity and intracellular protein transport. [provided by Alliance of Genome Resources, Apr 2022]

TBC1D22A links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.350068).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TBC1D22A	NM_014346.5 link	c.428C>T	p.Ser143Leu	missense_variant	Exon 3 of 13	ENST00000337137.9	NP_055161.1	Q8WUA7-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TBC1D22A	ENST00000337137.9 link	c.428C>T	p.Ser143Leu	missense_variant	Exon 3 of 13	1	NM_014346.5	ENSP00000336724.4		Q8WUA7-1

Frequencies

GnomAD3 genomes

AF:

0.0000591

AC:

AN:

152198

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

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

GnomAD2 exomes

AF:

0.0000291

AC:

AN:

205924

AF XY:

0.0000266

show subpopulations

Gnomad AFR exome

AF:

0.0000847

Gnomad AMR exome

AF:

0.0000328

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000642

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000114

Gnomad OTH exome

AF:

0.000379

GnomAD4 exome

AF:

0.0000173

AC:

AN:

1442012

Hom.:

Cov.:

AF XY:

0.0000154

AC XY:

AN XY:

715948

show subpopulations

African (AFR)

AF:

0.000151

AC:

AN:

33074

American (AMR)

AF:

0.0000964

AC:

AN:

41510

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25590

East Asian (EAS)

AF:

0.00

AC:

AN:

38734

South Asian (SAS)

AF:

0.0000357

AC:

AN:

84134

European-Finnish (FIN)

AF:

0.0000197

AC:

AN:

50708

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5714

European-Non Finnish (NFE)

AF:

0.00000816

AC:

AN:

1102970

Other (OTH)

AF:

0.0000504

AC:

AN:

59578

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000591

AC:

AN:

152316

Hom.:

Cov.:

AF XY:

0.0000805

AC XY:

AN XY:

74488

show subpopulations

African (AFR)

AF:

0.000168

AC:

AN:

41566

American (AMR)

AF:

0.0000653

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000193

AC:

AN:

5172

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.469

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000261

Hom.:

Bravo

AF:

0.0000453

ExAC

AF:

0.0000585

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 06, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.428C>T (p.S143L) alteration is located in exon 3 (coding exon 3) of the TBC1D22A gene. This alteration results from a C to T substitution at nucleotide position 428, causing the serine (S) at amino acid position 143 to be replaced by a leucine (L). 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

0.42

BayesDel_addAF

Benign

-0.046

BayesDel_noAF

Benign

-0.30

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.051

T;T;T;.;.

Eigen

Uncertain

0.44

Eigen_PC

Uncertain

0.42

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.98

D;D;D;D;D

M_CAP

Benign

0.035

MetaRNN

Benign

0.35

T;T;T;T;T

MetaSVM

Benign

-0.73

MutationAssessor

Uncertain

2.4

.;M;.;.;.

PhyloP100

5.3

PrimateAI

Uncertain

0.71

PROVEAN

Uncertain

-3.4

.;D;N;N;D

REVEL

Benign

0.13

Sift

Benign

0.11

.;T;T;T;T

Sift4G

Benign

0.16

T;T;T;T;T

Polyphen

0.96, 0.96, 0.99

.;D;D;D;.

Vest4

0.68

MutPred

0.32

.;Loss of phosphorylation at S143 (P = 0.0158);Loss of phosphorylation at S143 (P = 0.0158);.;.;

MVP

0.24

MPC

1.1

ClinPred

0.44

GERP RS

4.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.34

gMVP

0.57

Mutation Taster

=62/38

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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NM_014346.5:c.428C>T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over