10-113588787-C-T

Variant names:

• chr10-113588787-C-T
• rs557625429
• NM_198060.4:c.*188G>A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_198060.4(NRAP):​c.*188G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000208 in 596,032 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.00021 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00021 (1 hom.)
• Consequence: NRAP NM_198060.4 3_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.109

Genes affected

NRAP (HGNC:7988): (nebulin related anchoring protein) Predicted to enable actin filament binding activity and muscle alpha-actinin binding activity. Predicted to be involved in cardiac muscle thin filament assembly. Predicted to be located in fascia adherens; muscle tendon junction; and myofibril. Predicted to be active in Z disc. [provided by Alliance of Genome Resources, Apr 2022]

HABP2 (HGNC:4798): (hyaluronan binding protein 2) This gene encodes a member of the peptidase S1 family of serine proteases. The encoded preproprotein is secreted by hepatocytes and proteolytically processed to generate heavy and light chains that form the mature heterodimer. Further autoproteolysis leads to smaller, inactive peptides. This extracellular protease binds hyaluronic acid and may play a role in the coagulation and fibrinolysis systems. Mutations in this gene are associated with nonmedullary thyroid cancer and susceptibility to venous thromboembolism. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed. [provided by RefSeq, Jan 2016]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.86).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NRAP	NM_198060.4	c.*188G>A		3_prime_UTR_variant	Exon 42 of 42	ENST00000359988.4	NP_932326.2
HABP2	NM_004132.5	c.*418C>T		3_prime_UTR_variant	Exon 13 of 13	ENST00000351270.4	NP_004123.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NRAP	ENST00000359988	c.*188G>A		3_prime_UTR_variant	Exon 42 of 42	1	NM_198060.4	ENSP00000353078.3
HABP2	ENST00000351270.4	c.*418C>T		3_prime_UTR_variant	Exon 13 of 13	1	NM_004132.5	ENSP00000277903.4

Frequencies

GnomAD3 genomes AF: 0.000210 AC: 32 AN: 152176 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000724

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000655

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.000566

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000309

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.000207 AC: 92 AN: 443738 Hom.: 1 Cov.: 4 AF XY: 0.000218 AC XY: 51 AN XY: 233844

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000575

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000708

Gnomad4 FIN exome AF: 0.000570

Gnomad4 NFE exome AF: 0.000243

Gnomad4 OTH exome AF: 0.000194

GnomAD4 genome AF: 0.000210 AC: 32 AN: 152294 Hom.: 0 Cov.: 32 AF XY: 0.000175 AC XY: 13 AN XY: 74478

Gnomad4 AFR AF: 0.0000722

Gnomad4 AMR AF: 0.0000654

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.000566

Gnomad4 NFE AF: 0.000309

Gnomad4 OTH AF: 0.00

Alfa AF: 0.000476 Hom.: 0

Bravo AF: 0.000128

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Factor VII Marburg I Variant Thrombophilia Uncertain:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.86
CADD	Benign	4.1
DANN	Benign	0.60

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: rs557625429; hg19: chr10-115348546;