dbSNP rs7614835: PROS1:p.Arg40Leu (chr3-93927365-C-A) – ACMG Classification: Benign (-10 pts)

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 3P and 13B. PM1PP2BP4_StrongBP6BS1BS2

The NM_000313.4(PROS1):c.119G>T(p.Arg40Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00131 in 1,614,090 control chromosomes in the GnomAD database, including 15 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R40H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0070 ( 11 hom., cov: 32)

Exomes 𝑓: 0.00072 ( 4 hom. )

Consequence

PROS1
NM_000313.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:4

Conservation

PhyloP100: 4.30

Publications

7 publications found

Variant links:

Genes affected

PROS1 (HGNC:9456): (protein S) This gene encodes a vitamin K-dependent plasma protein that functions as a cofactor for the anticoagulant protease, activated protein C (APC) to inhibit blood coagulation. It is found in plasma in both a free, functionally active form and also in an inactive form complexed with C4b-binding protein. Mutations in this gene result in autosomal dominant hereditary thrombophilia. An inactive pseudogene of this locus is located at an adjacent region on chromosome 3. Alternative splicing results in multiple transcript variants encoding different isoforms that may undergo similar processing to generate mature protein. [provided by RefSeq, Oct 2015]

PROS1 Gene-Disease associations (from GenCC):

thrombophilia due to protein S deficiency, autosomal dominant
Inheritance: AD, SD Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, Ambry Genetics, Labcorp Genetics (formerly Invitae)
thrombophilia due to protein S deficiency, autosomal recessive
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, Ambry Genetics, Labcorp Genetics (formerly Invitae)
protein S deficiency
Inheritance: SD Classification: DEFINITIVE Submitted by: ClinGen
hereditary thrombophilia due to congenital protein S deficiency
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

PROS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

PM1

In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 4 uncertain in NM_000313.4

PP2

Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 34 curated pathogenic missense variants (we use a threshold of 10). The gene has 1 curated benign missense variants. Gene score misZ: 0.58456 (below the threshold of 3.09). Trascript score misZ: 1.9528 (below the threshold of 3.09). GenCC associations: The gene is linked to thrombophilia due to protein S deficiency, autosomal dominant, thrombophilia due to protein S deficiency, autosomal recessive, hereditary thrombophilia due to congenital protein S deficiency.

BP4

Computational evidence support a benign effect (MetaRNN=0.00996083).

BP6

Variant 3-93927365-C-A is Benign according to our data. Variant chr3-93927365-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 346893.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00703 (1070/152262) while in subpopulation AFR AF = 0.0246 (1022/41534). AF 95% confidence interval is 0.0234. There are 11 homozygotes in GnomAd4. There are 471 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 11 AD,AR,SD gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000313.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PROS1	NM_000313.4	MANE Select	c.119G>T	p.Arg40Leu	missense	Exon 2 of 15	NP_000304.2	A0A0S2Z4K3
	PROS1	NM_001314077.2		c.215G>T	p.Arg72Leu	missense	Exon 3 of 16	NP_001301006.1	A0A0S2Z4L3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PROS1	ENST00000394236.9	TSL:1 MANE Select	c.119G>T	p.Arg40Leu	missense	Exon 2 of 15	ENSP00000377783.3	P07225
PROS1	ENST00000407433.6	TSL:1	c.119G>T	p.Arg40Leu	missense	Exon 2 of 15	ENSP00000385794.2	G5E9F8
PROS1	ENST00000650591.1		c.215G>T	p.Arg72Leu	missense	Exon 3 of 16	ENSP00000497376.1	A0A0S2Z4L3

Frequencies

GnomAD3 genomes

AF:

0.00703

AC:

1070

AN:

152144

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0247

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00183

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000147

Gnomad OTH

AF:

0.00478

GnomAD2 exomes

AF:

0.00168

AC:

423

AN:

251362

AF XY:

0.00105

show subpopulations

Gnomad AFR exome

AF:

0.0239

Gnomad AMR exome

AF:

0.000896

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000264

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000717

AC:

1048

AN:

1461828

Hom.:

Cov.:

AF XY:

0.000602

AC XY:

438

AN XY:

727214

show subpopulations

African (AFR)

AF:

0.0270

AC:

904

AN:

33480

American (AMR)

AF:

0.000961

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39684

South Asian (SAS)

AF:

0.0000348

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.000174

AC:

AN:

5748

European-Non Finnish (NFE)

AF:

0.0000108

AC:

AN:

1111992

Other (OTH)

AF:

0.00141

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.468

Heterozygous variant carriers

112

168

224

280

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

120

150

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00703

AC:

1070

AN:

152262

Hom.:

Cov.:

AF XY:

0.00633

AC XY:

471

AN XY:

74448

show subpopulations

African (AFR)

AF:

0.0246

AC:

1022

AN:

41534

American (AMR)

AF:

0.00183

AC:

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000147

AC:

AN:

68026

Other (OTH)

AF:

0.00473

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.499

Heterozygous variant carriers

105

157

210

262

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00216

Hom.:

Bravo

AF:

0.00810

ESP6500AA

AF:

0.0284

AC:

125

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00227

AC:

275

Asia WGS

AF:

0.000866

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Thrombophilia due to protein S deficiency, autosomal dominant (2)

not provided (1)

PROS1-related disorder (1)

Protein S deficiency disease (1)

Thrombophilia due to protein S deficiency, autosomal recessive (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.56

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Uncertain

0.020

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.90

Eigen

Uncertain

0.62

Eigen_PC

Uncertain

0.53

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.94

MetaRNN

Benign

0.010

MetaSVM

Uncertain

0.52

MutationAssessor

Uncertain

2.6

PhyloP100

4.3

PrimateAI

Uncertain

0.53

PROVEAN

Pathogenic

-5.3

REVEL

Pathogenic

0.68

Sift

Uncertain

0.0010

Sift4G

Pathogenic

0.0010

Polyphen

1.0

Vest4

0.94

MVP

0.98

MPC

0.90

ClinPred

0.038

GERP RS

4.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.58

gMVP

0.71

Mutation Taster

=33/67

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over