rs8176541

Positions:

• chr2-187476320-G-A

Variant summary

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

The NM_006287.6(TFPI):​c.628+7804C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.262 in 152,002 control chromosomes in the GnomAD database, including 5,513 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 0.26 (5513 hom., cov: 31)
• Consequence: TFPI NM_006287.6 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0360

Genes affected

TFPI (HGNC:11760): (tissue factor pathway inhibitor) This gene encodes a Kunitz-type serine protease inhibitor that regulates the tissue factor (TF)-dependent pathway of blood coagulation. The coagulation process initiates with the formation of a factor VIIa-TF complex, which proteolytically activates additional proteases (factors IX and X) and ultimately leads to the formation of a fibrin clot. The product of this gene inhibits the activated factor X and VIIa-TF proteases in an autoregulatory loop. Inhibition of the encoded protein restores hemostasis in animal models of hemophilia. This gene encodes multiple protein isoforms that differ in their inhibitory activity, specificity and cellular localization. [provided by RefSeq, Jul 2016]

CALCRL-AS1 (HGNC:55863): (CALCRL and TFPI antisense RNA 1)

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.307 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TFPI	NM_006287.6	c.628+7804C>T		intron_variant		ENST00000233156.9
CALCRL-AS1	XR_007087504.1	n.3420-23186G>A		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TFPI	ENST00000233156.9	c.628+7804C>T		intron_variant		1	NM_006287.6	P1
CALCRL-AS1	ENST00000412276.6	n.190-23186G>A		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes AF: 0.262 AC: 39734 AN: 151884 Hom.: 5504 Cov.: 31

Gnomad AFR AF: 0.184

Gnomad AMI AF: 0.310

Gnomad AMR AF: 0.237

Gnomad ASJ AF: 0.331

Gnomad EAS AF: 0.136

Gnomad SAS AF: 0.287

Gnomad FIN AF: 0.299

Gnomad MID AF: 0.322

Gnomad NFE AF: 0.311

Gnomad OTH AF: 0.283

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

GnomAD4 genome AF: 0.262 AC: 39766 AN: 152002 Hom.: 5513 Cov.: 31 AF XY: 0.259 AC XY: 19269 AN XY: 74302

Gnomad4 AFR AF: 0.184

Gnomad4 AMR AF: 0.237

Gnomad4 ASJ AF: 0.331

Gnomad4 EAS AF: 0.135

Gnomad4 SAS AF: 0.287

Gnomad4 FIN AF: 0.299

Gnomad4 NFE AF: 0.311

Gnomad4 OTH AF: 0.289

Alfa AF: 0.303 Hom.: 7406

Bravo AF: 0.250

Asia WGS AF: 0.242 AC: 840 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	0.85
DANN	Benign	0.23

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: rs8176541; hg19: chr2-188341047;