2-127421977-G-A

Variant names:

• chr2-127421977-G-A
• rs2069919
• NM_000312.4:c.237+528G>A

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_000312.4(PROC):​c.237+528G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.309 in 152,110 control chromosomes in the GnomAD database, including 7,614 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 0.31 (7614 hom., cov: 33)
• Consequence: PROC NM_000312.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.20
• Publications: 10 publications found

Genes affected

PROC (HGNC:9451): (protein C, inactivator of coagulation factors Va and VIIIa) This gene encodes a vitamin K-dependent plasma glycoprotein. The encoded protein is cleaved to its activated form by the thrombin-thrombomodulin complex. This activated form contains a serine protease domain and functions in degradation of the activated forms of coagulation factors V and VIII. Mutations in this gene have been associated with thrombophilia due to protein C deficiency, neonatal purpura fulminans, and recurrent venous thrombosis.[provided by RefSeq, Dec 2009]

PROC Gene-Disease associations (from GenCC):

• hereditary thrombophilia due to congenital protein C deficiency

  Inheritance: AD, SD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
• thrombophilia due to protein C deficiency, autosomal dominant

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics
• thrombophilia due to protein C deficiency, autosomal recessive

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

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.339 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000312.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PROC	NM_000312.4	MANE Select	c.237+528G>A		intron	N/A	NP_000303.1
	PROC	NM_001375607.1		c.321+528G>A		intron	N/A	NP_001362536.1
	PROC	NM_001375602.1		c.420+528G>A		intron	N/A	NP_001362531.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PROC	ENST00000234071.8	TSL:1 MANE Select	c.237+528G>A		intron	N/A	ENSP00000234071.4
	PROC	ENST00000409048.1	TSL:5	c.237+528G>A		intron	N/A	ENSP00000386679.1
	PROC	ENST00000442644.5	TSL:3	c.237+528G>A		intron	N/A	ENSP00000411241.1

Frequencies

GnomAD3 genomes AF: 0.309 AC: 47001 AN: 151992 Hom.: 7620 Cov.: 33

Gnomad AFR AF: 0.344

Gnomad AMI AF: 0.364

Gnomad AMR AF: 0.240

Gnomad ASJ AF: 0.350

Gnomad EAS AF: 0.00443

Gnomad SAS AF: 0.294

Gnomad FIN AF: 0.286

Gnomad MID AF: 0.351

Gnomad NFE AF: 0.329

Gnomad OTH AF: 0.317

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

GnomAD4 genome AF: 0.309 AC: 47007 AN: 152110 Hom.: 7614 Cov.: 33 AF XY: 0.302 AC XY: 22467 AN XY: 74366

African (AFR) AF: 0.343 AC: 14234 AN: 41466

American (AMR) AF: 0.239 AC: 3658 AN: 15288

Ashkenazi Jewish (ASJ) AF: 0.350 AC: 1213 AN: 3470

East Asian (EAS) AF: 0.00444 AC: 23 AN: 5184

South Asian (SAS) AF: 0.293 AC: 1414 AN: 4822

European-Finnish (FIN) AF: 0.286 AC: 3026 AN: 10590

Middle Eastern (MID) AF: 0.337 AC: 99 AN: 294

European-Non Finnish (NFE) AF: 0.329 AC: 22345 AN: 67974

Other (OTH) AF: 0.314 AC: 663 AN: 2110

Alfa AF: 0.321 Hom.: 11613

Bravo AF: 0.307

Asia WGS AF: 0.143 AC: 500 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	12
DANN	Benign	0.83
PhyloP100		1.2
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs2069919; hg19: chr2-128179553;