rs7764128

Variant names:

• chr6-7881972-G-A
• rs7764128
• NM_030810.5:c.*1172C>T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_030810.5(TXNDC5):​c.*1172C>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.208 in 152,584 control chromosomes in the GnomAD database, including 4,809 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 0.21 (4805 hom., cov: 32)
  • Exomes 𝑓: 0.15 (4 hom.)
• Consequence: TXNDC5 NM_030810.5 3_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.133

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:42001): (BLOC1S5-TXNDC5 readthrough (NMD candidate)) This locus represents naturally occurring read-through transcription between the neighboring MUTED (muted homolog) and TXNDC5 (thioredoxin domain containing 5) genes on chromosome 6. The read-through transcript is a candidate for nonsense-mediated mRNA decay (NMD) and is unlikely to produce a protein product. [provided by RefSeq, Dec 2010]

BMP6 (HGNC:1073): (bone morphogenetic protein 6) This gene encodes a secreted ligand of the TGF-beta (transforming growth factor-beta) superfamily of proteins. Ligands of this family bind various TGF-beta receptors leading to recruitment and activation of SMAD family transcription factors that regulate gene expression. The encoded preproprotein is proteolytically processed to generate each subunit of the disulfide-linked homodimer. This protein regulates a wide range of biological processes including iron homeostasis, fat and bone development, and ovulation. Differential expression of this gene may be associated with progression of breast and prostate cancer. Mutations in this gene may be associated with iron overload in human patients. [provided by RefSeq, Jul 2016]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.87).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.43 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TXNDC5	NM_030810.5	c.*1172C>T		3_prime_UTR_variant	Exon 10 of 10	ENST00000379757.9	NP_110437.2
TXNDC5	NM_001145549.4	c.*1172C>T		3_prime_UTR_variant	Exon 10 of 10		NP_001139021.1
BLOC1S5-TXNDC5	NR_037616.1	n.2630C>T		non_coding_transcript_exon_variant	Exon 13 of 13
BMP6	NM_001718.6	c.*1629G>A		downstream_gene_variant		ENST00000283147.7	NP_001709.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TXNDC5	ENST00000379757	c.*1172C>T		3_prime_UTR_variant	Exon 10 of 10	1	NM_030810.5	ENSP00000369081.4
BLOC1S5-TXNDC5	ENST00000439343.2	n.*2169C>T		non_coding_transcript_exon_variant	Exon 13 of 13	2		ENSP00000454697.1
BLOC1S5-TXNDC5	ENST00000439343.2	n.*2169C>T		3_prime_UTR_variant	Exon 13 of 13	2		ENSP00000454697.1
BMP6	ENST00000283147.7	c.*1629G>A		downstream_gene_variant		1	NM_001718.6	ENSP00000283147.6

Frequencies

GnomAD3 genomes AF: 0.208 AC: 31576 AN: 152022 Hom.: 4785 Cov.: 32

Gnomad AFR AF: 0.435

Gnomad AMI AF: 0.0746

Gnomad AMR AF: 0.143

Gnomad ASJ AF: 0.0965

Gnomad EAS AF: 0.113

Gnomad SAS AF: 0.112

Gnomad FIN AF: 0.172

Gnomad MID AF: 0.152

Gnomad NFE AF: 0.113

Gnomad OTH AF: 0.177

GnomAD4 exome AF: 0.149 AC: 66 AN: 444 Hom.: 4 Cov.: 0 AF XY: 0.159 AC XY: 43 AN XY: 270

Gnomad4 AFR exome AF: 0.00

Gnomad4 FIN exome AF: 0.146

Gnomad4 NFE exome AF: 0.200

Gnomad4 OTH exome AF: 0.333

GnomAD4 genome AF: 0.208 AC: 31645 AN: 152140 Hom.: 4805 Cov.: 32 AF XY: 0.208 AC XY: 15463 AN XY: 74392

Gnomad4 AFR AF: 0.435

Gnomad4 AMR AF: 0.143

Gnomad4 ASJ AF: 0.0965

Gnomad4 EAS AF: 0.113

Gnomad4 SAS AF: 0.112

Gnomad4 FIN AF: 0.172

Gnomad4 NFE AF: 0.113

Gnomad4 OTH AF: 0.179

Alfa AF: 0.162 Hom.: 669

Bravo AF: 0.218

Asia WGS AF: 0.155 AC: 540 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.87
CADD	Benign	1.3
DANN	Benign	0.70
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

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

Other links and lift over

dbSNP: rs7764128; hg19: chr6-7882205;