6-7904682-A-C

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_030810.5(TXNDC5):ā€‹c.305T>Gā€‹(p.Leu102Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000372 in 1,614,188 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000013 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000027 ( 0 hom. )

Consequence

TXNDC5
NM_030810.5 missense

Scores

12
4
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.83
Variant links:
Genes affected
TXNDC5 (HGNC:21073): (thioredoxin domain containing 5) This gene encodes a member of the disulfide isomerase (PDI) family of endoplasmic reticulum (ER) proteins that catalyze protein folding and thiol-disulfide interchange reactions. The encoded protein has an N-terminal endoplasmic reticulum (ER)-signal sequence, three catalytically active thioredoxin domains and a C-terminal ER-retention sequence. Its expression is induced by hypoxia and its role may be to protect hypoxic cells from apoptosis. Alternative splicing results in multiple transcript variants. Read-through transcription also exists between this gene and the neighboring upstream BLOC1S5 gene. [provided by RefSeq, Dec 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.968

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TXNDC5NM_030810.5 linkuse as main transcriptc.305T>G p.Leu102Arg missense_variant 2/10 ENST00000379757.9
BLOC1S5-TXNDC5NR_037616.1 linkuse as main transcriptn.464T>G non_coding_transcript_exon_variant 5/13
TXNDC5NM_001145549.4 linkuse as main transcriptc.-20T>G 5_prime_UTR_variant 2/10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TXNDC5ENST00000379757.9 linkuse as main transcriptc.305T>G p.Leu102Arg missense_variant 2/101 NM_030810.5 P1Q8NBS9-1
TXNDC5ENST00000473453.2 linkuse as main transcriptc.-20T>G 5_prime_UTR_variant 2/101 Q8NBS9-2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152176
Hom.:
0
Cov.:
32
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:
0.000193
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
GnomAD3 exomes
AF:
0.00000795
AC:
2
AN:
251452
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135900
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1461894
Hom.:
0
Cov.:
31
AF XY:
0.00000413
AC XY:
3
AN XY:
727248
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152294
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74484
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsFeb 07, 2023The c.305T>G (p.L102R) alteration is located in exon 2 (coding exon 2) of the TXNDC5 gene. This alteration results from a T to G substitution at nucleotide position 305, causing the leucine (L) at amino acid position 102 to be replaced by an arginine (R). 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
Pathogenic
0.99
BayesDel_addAF
Pathogenic
0.16
D
BayesDel_noAF
Pathogenic
0.16
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Benign
0.31
T
Eigen
Pathogenic
0.92
Eigen_PC
Pathogenic
0.80
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.93
D
M_CAP
Uncertain
0.17
D
MetaRNN
Pathogenic
0.97
D
MetaSVM
Benign
-0.90
T
MutationAssessor
Pathogenic
4.2
H
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Pathogenic
0.85
D
PROVEAN
Pathogenic
-5.6
D
REVEL
Pathogenic
0.69
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0010
D
Polyphen
1.0
D
Vest4
0.97
MutPred
0.93
Gain of disorder (P = 0.0218);
MVP
0.64
MPC
0.70
ClinPred
1.0
D
GERP RS
5.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
Varity_R
0.98
gMVP
0.94

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: rs541758126; hg19: chr6-7904915; API