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GeneBe

18-79988319-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_006701.5(TXNL4A):c.74T>A(p.Val25Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000688 in 1,598,770 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 34)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

TXNL4A
NM_006701.5 missense

Scores

9
8
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 8.11
Variant links:
Genes affected
TXNL4A (HGNC:30551): (thioredoxin like 4A) The protein encoded by this gene is a member of the U5 small ribonucleoprotein particle (snRNP), and is involved in pre-mRNA splicing. This protein contains a thioredoxin-like fold and it is expected to interact with multiple proteins. Protein-protein interactions have been observed with the polyglutamine tract-binding protein 1 (PQBP1). Mutations in both the coding region and promoter region of this gene have been associated with Burn-McKeown syndrome, which is a rare disorder characterized by craniofacial dysmorphisms, cardiac defects, hearing loss, and bilateral choanal atresia. A pseudogene of this gene is found on chromosome 2. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2015]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.865

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TXNL4ANM_006701.5 linkuse as main transcriptc.74T>A p.Val25Glu missense_variant 1/3 ENST00000269601.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TXNL4AENST00000269601.10 linkuse as main transcriptc.74T>A p.Val25Glu missense_variant 1/31 NM_006701.5 P1

Frequencies

GnomAD3 genomes
AF:
0.0000328
AC:
5
AN:
152222
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000415
AC:
6
AN:
1446430
Hom.:
0
Cov.:
31
AF XY:
0.00000417
AC XY:
3
AN XY:
718750
show subpopulations
Gnomad4 AFR exome
AF:
0.000151
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000119
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000328
AC:
5
AN:
152340
Hom.:
0
Cov.:
34
AF XY:
0.0000537
AC XY:
4
AN XY:
74492
show subpopulations
Gnomad4 AFR
AF:
0.0000962
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000264
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.00
AC:
0

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Choanal atresia-hearing loss-cardiac defects-craniofacial dysmorphism syndrome Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsSep 28, 2021- -
Uncertain significance, criteria provided, single submitterclinical testingBaylor GeneticsAug 03, 2019This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.51
D
BayesDel_noAF
Pathogenic
0.49
Cadd
Pathogenic
27
Dann
Uncertain
0.98
DEOGEN2
Benign
0.38
T;T;.
Eigen
Uncertain
0.45
Eigen_PC
Uncertain
0.31
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Pathogenic
0.98
D;D;D
M_CAP
Uncertain
0.11
D
MetaRNN
Pathogenic
0.87
D;D;D
MetaSVM
Uncertain
0.25
D
MutationAssessor
Pathogenic
3.6
H;.;.
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Pathogenic
0.90
D
PROVEAN
Uncertain
-4.0
D;.;.
REVEL
Pathogenic
0.81
Sift
Pathogenic
0.0
D;.;.
Sift4G
Uncertain
0.0020
D;D;D
Polyphen
0.42
B;.;.
Vest4
0.94
MVP
0.41
MPC
3.5
ClinPred
1.0
D
GERP RS
4.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.95
gMVP
0.99

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.

Other links and lift over

dbSNP: rs142690672; hg19: chr18-77748319; API