rs8074840

Variant names:

• chr17-1771135-T-C
• rs8074840
• NM_002615.7:c.390T>C

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BA1

The NM_002615.7(SERPINF1):​c.390T>C​(p.Thr130Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.307 in 1,613,536 control chromosomes in the GnomAD database, including 79,292 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.28 (6433 hom., cov: 31)
  • Exomes 𝑓: 0.31 (72859 hom.)
• Consequence: SERPINF1 NM_002615.7 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:5
• Conservation: PhyloP100: -2.16

Genes affected

SERPINF1 (HGNC:8824): (serpin family F member 1) This gene encodes a member of the serpin family that does not display the serine protease inhibitory activity shown by many of the other serpin proteins. The encoded protein is secreted and strongly inhibits angiogenesis. In addition, this protein is a neurotrophic factor involved in neuronal differentiation in retinoblastoma cells. Mutations in this gene were found in individuals with osteogenesis imperfecta, type VI. [provided by RefSeq, Aug 2016]

ACMG classification

Verdict is Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).
• BP6: Variant 17-1771135-T-C is Benign according to our data. Variant chr17-1771135-T-C is described in ClinVar as [Benign]. Clinvar id is 322003.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr17-1771135-T-C is described in Lovd as [Benign].
• BP7: Synonymous conserved (PhyloP=-2.16 with no splicing effect.
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.365 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SERPINF1	NM_002615.7	c.390T>C	p.Thr130Thr	synonymous_variant	Exon 4 of 8	ENST00000254722.9	NP_002606.3
SERPINF1	NM_001329903.2	c.390T>C	p.Thr130Thr	synonymous_variant	Exon 4 of 8		NP_001316832.1
SERPINF1	NM_001329904.2	c.-172T>C		5_prime_UTR_variant	Exon 3 of 7		NP_001316833.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SERPINF1	ENST00000254722.9	c.390T>C	p.Thr130Thr	synonymous_variant	Exon 4 of 8	1	NM_002615.7	ENSP00000254722.4

Frequencies

GnomAD3 genomes AF: 0.277 AC: 42087 AN: 151804 Hom.: 6427 Cov.: 31

Gnomad AFR AF: 0.156

Gnomad AMI AF: 0.237

Gnomad AMR AF: 0.347

Gnomad ASJ AF: 0.241

Gnomad EAS AF: 0.378

Gnomad SAS AF: 0.355

Gnomad FIN AF: 0.408

Gnomad MID AF: 0.210

Gnomad NFE AF: 0.306

Gnomad OTH AF: 0.249

GnomAD3 exomes AF: 0.327 AC: 82109 AN: 251308 Hom.: 14338 AF XY: 0.325 AC XY: 44085 AN XY: 135824

Gnomad AFR exome AF: 0.154

Gnomad AMR exome AF: 0.438

Gnomad ASJ exome AF: 0.240

Gnomad EAS exome AF: 0.359

Gnomad SAS exome AF: 0.347

Gnomad FIN exome AF: 0.404

Gnomad NFE exome AF: 0.301

Gnomad OTH exome AF: 0.312

GnomAD4 exome AF: 0.311 AC: 453879 AN: 1461614 Hom.: 72859 Cov.: 37 AF XY: 0.311 AC XY: 226406 AN XY: 727090

Gnomad4 AFR exome AF: 0.145

Gnomad4 AMR exome AF: 0.428

Gnomad4 ASJ exome AF: 0.234

Gnomad4 EAS exome AF: 0.412

Gnomad4 SAS exome AF: 0.347

Gnomad4 FIN exome AF: 0.396

Gnomad4 NFE exome AF: 0.303

Gnomad4 OTH exome AF: 0.294

GnomAD4 genome AF: 0.277 AC: 42106 AN: 151922 Hom.: 6433 Cov.: 31 AF XY: 0.283 AC XY: 21008 AN XY: 74240

Gnomad4 AFR AF: 0.155

Gnomad4 AMR AF: 0.347

Gnomad4 ASJ AF: 0.241

Gnomad4 EAS AF: 0.379

Gnomad4 SAS AF: 0.355

Gnomad4 FIN AF: 0.408

Gnomad4 NFE AF: 0.306

Gnomad4 OTH AF: 0.249

Alfa AF: 0.294 Hom.: 13193

Bravo AF: 0.267

Asia WGS AF: 0.383 AC: 1326 AN: 3478

EpiCase AF: 0.296

EpiControl AF: 0.288

ClinVar

Significance: Benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

-

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Osteogenesis imperfecta type 6 Benign:2

-

Medical Molecular Genetics Department, National Research Center

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

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 and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

not specified Benign:1

Jun 09, 2017

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
CADD	Benign	0.095
DANN	Benign	0.27
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

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: rs8074840; hg19: chr17-1674429; COSMIC: COSV54615256; COSMIC: COSV54615256;