rs912629007

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_000312.4(PROC):​c.-32G>A variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000713 in 1,289,800 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000074 ( 1 hom. )

Consequence

PROC
NM_000312.4 5_prime_UTR

Scores

2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1B:1

Conservation

PhyloP100: 0.712

Publications

0 publications found
Variant links:
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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PROCNM_000312.4 linkc.-32G>A 5_prime_UTR_variant Exon 1 of 9 ENST00000234071.8 NP_000303.1 P04070-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PROCENST00000234071.8 linkc.-32G>A 5_prime_UTR_variant Exon 1 of 9 1 NM_000312.4 ENSP00000234071.4 P04070-1

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152184
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000292
AC:
4
AN:
137018
AF XY:
0.0000403
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000409
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000181
Gnomad OTH exome
AF:
0.000240
GnomAD4 exome
AF:
0.0000738
AC:
84
AN:
1137498
Hom.:
1
Cov.:
32
AF XY:
0.0000824
AC XY:
46
AN XY:
558050
show subpopulations
African (AFR)
AF:
0.0000410
AC:
1
AN:
24414
American (AMR)
AF:
0.0000354
AC:
1
AN:
28266
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
15942
East Asian (EAS)
AF:
0.00
AC:
0
AN:
12840
South Asian (SAS)
AF:
0.000328
AC:
25
AN:
76204
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
13062
Middle Eastern (MID)
AF:
0.000227
AC:
1
AN:
4402
European-Non Finnish (NFE)
AF:
0.0000576
AC:
53
AN:
920834
Other (OTH)
AF:
0.0000722
AC:
3
AN:
41534
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.473
Heterozygous variant carriers
0
5
10
14
19
24
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.0000525
AC:
8
AN:
152302
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74458
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41560
American (AMR)
AF:
0.00
AC:
0
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.000414
AC:
2
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
68012
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.513
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00
Hom.:
0
Bravo
AF:
0.0000491
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Jun 11, 2025
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant summary: PROC c.-32G>A is located in the untranslated mRNA region upstream of the initiation codon. The variant allele was found at a frequency of 2.9e-05 in 137018 control chromosomes. The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. To our knowledge, no verifiable reports of c.-32G>A have been observed in any individual(s) affected with PROC-related conditions. However 1 publication was identified with a possible, but not confirmed, match in which a heterozygous variant "G-1458A" was found in 1 individual with protein C deficiency (Sakata_2000). These report(s) do not provide unequivocal conclusions about association of the variant with Thrombophilia Due To Protein C Deficiency, Autosomal Dominant. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 10805275, 37647632). ClinVar contains an entry for this variant (Variation ID: 3043186). Based on the evidence outlined above, the variant was classified as uncertain significance. -

PROC-related disorder Benign:1
Apr 12, 2019
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
14
DANN
Benign
0.67
PhyloP100
0.71
PromoterAI
-0.012
Neutral
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs912629007; hg19: chr2-128176058; API