Genetic Variant TCEAL2:p.Leu4Pro (chrX-102126841-T-C) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_080390.4(TCEAL2):c.11T>C(p.Leu4Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000113 in 1,203,473 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 44 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000027 ( 0 hom., 2 hem., cov: 24)

Exomes 𝑓: 0.00012 ( 0 hom. 42 hem. )

Consequence

TCEAL2
NM_080390.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.00500

Variant links:

Genes affected

TCEAL2 (HGNC:29818): (transcription elongation factor A like 2) This gene encodes a member of the transcription elongation factor A (SII)-like (TCEAL) gene family. Members of this family contain TFA domains and may function as nuclear phosphoproteins that modulate transcription in a promoter context-dependent manner. Multiple family members are located on the X chromosome. [provided by RefSeq, Jul 2008]

TCEAL2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.053761095).

BS2

High Hemizygotes in GnomAd4 at 2 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TCEAL2	NM_080390.4 link	c.11T>C	p.Leu4Pro	missense_variant	Exon 3 of 3	ENST00000372780.6	NP_525129.1	Q9H3H9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
TCEAL2	ENST00000372780.6 link	c.11T>C	p.Leu4Pro	missense_variant	Exon 3 of 3	1	NM_080390.4	ENSP00000361866.1	Q9H3H9
TCEAL2	ENST00000476749.1 link	n.796T>C		non_coding_transcript_exon_variant	Exon 2 of 2	1
TCEAL2	ENST00000329035.2 link	c.11T>C	p.Leu4Pro	missense_variant	Exon 3 of 3	5		ENSP00000332359.2	Q9H3H9
TCEAL2	ENST00000651085.1 link	n.153+396T>C		intron_variant	Intron 2 of 3

Frequencies

GnomAD3 genomes

AF:

0.0000267

AC:

AN:

112159

Hom.:

Cov.:

AF XY:

0.0000582

AC XY:

AN XY:

34385

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000564

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000342

AC:

AN:

175405

Hom.:

AF XY:

0.0000323

AC XY:

AN XY:

61879

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.0000756

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000122

AC:

133

AN:

1091314

Hom.:

Cov.:

AF XY:

0.000117

AC XY:

AN XY:

359340

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.000155

Gnomad4 OTH exome

AF:

0.0000657

GnomAD4 genome

AF:

0.0000267

AC:

AN:

112159

Hom.:

Cov.:

AF XY:

0.0000582

AC XY:

AN XY:

34385

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000564

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000478

Hom.:

Bravo

AF:

0.0000604

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ExAC

AF:

0.0000494

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 19, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.11T>C (p.L4P) alteration is located in exon 3 (coding exon 1) of the TCEAL2 gene. This alteration results from a T to C substitution at nucleotide position 11, causing the leucine (L) at amino acid position 4 to be replaced by a proline (P). 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

0.085

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.72

CADD

Benign

7.0

DANN

Benign

0.81

DEOGEN2

Benign

0.018

T;T

FATHMM_MKL

Benign

0.014

LIST_S2

Benign

0.53

T;.

M_CAP

Benign

0.0029

MetaRNN

Benign

0.054

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.7

L;L

PrimateAI

Benign

0.45

PROVEAN

Uncertain

-2.7

D;D

REVEL

Benign

0.018

Sift

Benign

0.13

T;T

Sift4G

Uncertain

0.050

T;T

Polyphen

0.0010

B;B

Vest4

0.16

MutPred

0.43

Loss of stability (P = 0.0024);Loss of stability (P = 0.0024);

MVP

0.043

MPC

0.16

ClinPred

0.035

GERP RS

-0.44

Varity_R

0.48

gMVP

0.089

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