Genetic Variant TEKTL1:p.Ala133Val (chr19-15011223-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_173482.3(TEKTL1):c.398C>T(p.Ala133Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000136 in 1,475,620 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 7.6e-7 ( 0 hom. )

Consequence

TEKTL1
NM_173482.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.130

Variant links:

Genes affected

TEKTL1 (HGNC:26866): (tektin like 1) Located in extracellular exosome. [provided by Alliance of Genome Resources, Apr 2022]

TEKTL1 links:

SLC1A6 (HGNC:10944): (solute carrier family 1 member 6) Predicted to enable high-affinity glutamate transmembrane transporter activity. Involved in neurotransmitter uptake. Located in intermediate filament cytoskeleton and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

SLC1A6 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.14478648).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TEKTL1	NM_173482.3 link	c.398C>T	p.Ala133Val	missense_variant	Exon 1 of 7	ENST00000292574.4	NP_775753.2	Q8IYK2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CCDC105	ENST00000292574.4 link	c.398C>T	p.Ala133Val	missense_variant	Exon 1 of 7	1	NM_173482.3	ENSP00000292574.2		Q8IYK2
SLC1A6	ENST00000595863.1 link	c.-8+11681G>A		intron_variant	Intron 1 of 2	3		ENSP00000469551.1		M0QY32

Frequencies

GnomAD3 genomes

AF:

0.00000659

AC:

AN:

151804

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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

GnomAD4 exome

AF:

7.55e-7

AC:

AN:

1323816

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

648904

show subpopulations

Gnomad4 AFR exome

AF:

0.0000378

Gnomad4 AMR exome

AF:

0.00

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000659

AC:

AN:

151804

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74136

show subpopulations

Gnomad4 AFR

AF:

0.0000242

Gnomad4 AMR

AF:

0.00

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

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 12, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.398C>T (p.A133V) alteration is located in exon 1 (coding exon 1) of the CCDC105 gene. This alteration results from a C to T substitution at nucleotide position 398, causing the alanine (A) at amino acid position 133 to be replaced by a valine (V). 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

0.13

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.60

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.00051

Eigen

Benign

-0.41

Eigen_PC

Benign

-0.42

FATHMM_MKL

Benign

0.047

LIST_S2

Benign

0.54

M_CAP

Benign

0.021

MetaRNN

Benign

0.14

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.1

PrimateAI

Uncertain

0.78

PROVEAN

Benign

-0.31

REVEL

Benign

0.053

Sift

Benign

0.75

Sift4G

Benign

0.46

Polyphen

0.77

Vest4

0.33

MutPred

0.25

Loss of helix (P = 0.0558);

MVP

0.18

MPC

0.54

ClinPred

0.59

GERP RS

1.2

Varity_R

0.027

gMVP

0.14

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