3-93886412-G-T

Variant names:

• chr3-93886412-G-T
• rs565325519
• NM_000313.4:c.1247C>A

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2 PP2 PP3_Moderate

The NM_000313.4(PROS1):​c.1247C>A​(p.Pro416Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,461,510 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P416L) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: PROS1 NM_000313.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.46
• Publications: 2 publications found

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: Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
• hereditary thrombophilia due to congenital protein S deficiency

  Inheritance: AR, SD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
• thrombophilia due to protein S deficiency, autosomal recessive

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• 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.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.933

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.1247C>A	p.Pro416Gln	missense	Exon 11 of 15	NP_000304.2
	PROS1	NM_001314077.2		c.1343C>A	p.Pro448Gln	missense	Exon 12 of 16	NP_001301006.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PROS1	ENST00000394236.9	TSL:1 MANE Select	c.1247C>A	p.Pro416Gln	missense	Exon 11 of 15	ENSP00000377783.3
	PROS1	ENST00000407433.6	TSL:1	c.1202C>A	p.Pro401Gln	missense	Exon 11 of 15	ENSP00000385794.2
	PROS1	ENST00000650591.1		c.1343C>A	p.Pro448Gln	missense	Exon 12 of 16	ENSP00000497376.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000796 AC: 2 AN: 251354 AF XY: 0.0000147

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1461510 Hom.: 0 Cov.: 31 AF XY: 0.00000550 AC XY: 4 AN XY: 727070

African (AFR) AF: 0.00 AC: 0 AN: 33456

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26126

East Asian (EAS) AF: 0.00 AC: 0 AN: 39630

South Asian (SAS) AF: 0.0000464 AC: 4 AN: 86250

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53416

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111776

Other (OTH) AF: 0.00 AC: 0 AN: 60372

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000363 Hom.: 0

ExAC AF: 0.0000165 AC: 2

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Uncertain	0.015	T
BayesDel_noAF	Uncertain	-0.040
CADD	Benign	20
DANN	Uncertain	0.98
DEOGEN2	Uncertain	0.56	D
Eigen	Benign	-0.063
Eigen_PC	Benign	-0.11
FATHMM_MKL	Uncertain	0.82	D
LIST_S2	Benign	0.80	T
M_CAP	Benign	0.014	T
MetaRNN	Pathogenic	0.93	D
MetaSVM	Benign	-0.67	T
MutationAssessor	Benign	1.7	L
PhyloP100		4.5
PrimateAI	Benign	0.29	T
PROVEAN	Benign	-2.2	N
REVEL	Uncertain	0.57
Sift	Benign	0.11	T
Sift4G	Benign	0.11	T
Polyphen		0.79	P
Vest4		0.44
MutPred		0.90		Loss of ubiquitination at K415 (P = 0.1069)
MVP		0.81
MPC		0.35
ClinPred		0.36	T
GERP RS		2.5
Varity_R		0.066
gMVP		0.58
Mutation Taster		=28/72	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.10		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs565325519; hg19: chr3-93605256;