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GeneBe

18-79973691-G-A

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_006701.5(TXNL4A):c.423C>T(p.Arg141=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000905 in 1,612,474 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00093 ( 9 hom. )

Consequence

TXNL4A
NM_006701.5 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 1.98
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 Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.47).
BP6
Variant 18-79973691-G-A is Benign according to our data. Variant chr18-79973691-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 722554.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=1.98 with no splicing effect.
BS2
High Homozygotes in GnomAdExome at 3 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TXNL4ANM_006701.5 linkuse as main transcriptc.423C>T p.Arg141= synonymous_variant 3/3 ENST00000269601.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TXNL4AENST00000269601.10 linkuse as main transcriptc.423C>T p.Arg141= synonymous_variant 3/31 NM_006701.5 P1

Frequencies

GnomAD3 genomes
AF:
0.000664
AC:
101
AN:
152214
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
Gnomad ASJ
AF:
0.00518
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00393
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.000750
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.00137
AC:
342
AN:
248986
Hom.:
3
AF XY:
0.00166
AC XY:
224
AN XY:
134536
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.000499
Gnomad ASJ exome
AF:
0.00422
Gnomad EAS exome
AF:
0.0000547
Gnomad SAS exome
AF:
0.00525
Gnomad FIN exome
AF:
0.0000463
Gnomad NFE exome
AF:
0.000924
Gnomad OTH exome
AF:
0.00280
GnomAD4 exome
AF:
0.000931
AC:
1359
AN:
1460142
Hom.:
9
Cov.:
30
AF XY:
0.00115
AC XY:
834
AN XY:
726322
show subpopulations
Gnomad4 AFR exome
AF:
0.000150
Gnomad4 AMR exome
AF:
0.000520
Gnomad4 ASJ exome
AF:
0.00388
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00563
Gnomad4 FIN exome
AF:
0.0000375
Gnomad4 NFE exome
AF:
0.000542
Gnomad4 OTH exome
AF:
0.00149
GnomAD4 genome
AF:
0.000663
AC:
101
AN:
152332
Hom.:
0
Cov.:
33
AF XY:
0.000752
AC XY:
56
AN XY:
74480
show subpopulations
Gnomad4 AFR
AF:
0.000120
Gnomad4 AMR
AF:
0.000327
Gnomad4 ASJ
AF:
0.00518
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00394
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000750
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.00107
Hom.:
0
Bravo
AF:
0.000601
Asia WGS
AF:
0.00115
AC:
4
AN:
3478
EpiCase
AF:
0.00104
EpiControl
AF:
0.00154

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingInvitaeDec 31, 2019- -
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenApr 01, 2022TXNL4A: BP4, BP7 -
Choanal atresia-hearing loss-cardiac defects-craniofacial dysmorphism syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsAug 23, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.47
Cadd
Benign
3.9
Dann
Benign
0.92
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs143131944; hg19: chr18-77733691; COSMIC: COSV99511341; COSMIC: COSV99511341; API