chr6-7883632-C-T

Position:

• chr6-7883632-C-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BS1 BS2

The NM_030810.5(TXNDC5):​c.1177-366G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.014 in 152,246 control chromosomes in the GnomAD database, including 17 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.014 (17 hom., cov: 32)
• Consequence: TXNDC5 NM_030810.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.916

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]

BLOC1S5-TXNDC5 (HGNC:):

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BS1: Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.014 (2128/152246) while in subpopulation NFE AF= 0.0206 (1400/68020). AF 95% confidence interval is 0.0197. There are 17 homozygotes in gnomad4. There are 1034 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 17 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TXNDC5	NM_030810.5	c.1177-366G>A		intron_variant		ENST00000379757.9	NP_110437.2
BLOC1S5-TXNDC5	NR_037616.1	n.1336-366G>A		intron_variant, non_coding_transcript_variant
TXNDC5	NM_001145549.4	c.853-366G>A		intron_variant			NP_001139021.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TXNDC5	ENST00000379757.9	c.1177-366G>A		intron_variant		1	NM_030810.5	ENSP00000369081	P1
TXNDC5	ENST00000473453.2	c.853-366G>A		intron_variant		1		ENSP00000420784
TXNDC5	ENST00000460138.5	n.955-366G>A		intron_variant, non_coding_transcript_variant		2
TXNDC5	ENST00000475802.1	n.471-366G>A		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes AF: 0.0140 AC: 2126 AN: 152128 Hom.: 17 Cov.: 32

Gnomad AFR AF: 0.00307

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0146

Gnomad ASJ AF: 0.0107

Gnomad EAS AF: 0.000193

Gnomad SAS AF: 0.00436

Gnomad FIN AF: 0.0261

Gnomad MID AF: 0.0253

Gnomad NFE AF: 0.0206

Gnomad OTH AF: 0.0153

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0140 AC: 2128 AN: 152246 Hom.: 17 Cov.: 32 AF XY: 0.0139 AC XY: 1034 AN XY: 74444

Gnomad4 AFR AF: 0.00306

Gnomad4 AMR AF: 0.0145

Gnomad4 ASJ AF: 0.0107

Gnomad4 EAS AF: 0.000193

Gnomad4 SAS AF: 0.00477

Gnomad4 FIN AF: 0.0261

Gnomad4 NFE AF: 0.0206

Gnomad4 OTH AF: 0.0152

Alfa AF: 0.0216 Hom.: 4

Bravo AF: 0.0121

Asia WGS AF: 0.00289 AC: 10 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	5.4
DANN	Benign	0.73

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.13		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

Other links and lift over

dbSNP: rs35264740; hg19: chr6-7883865;