rs5879

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4BS1

This summary comes from the ClinGen Evidence Repository: The c.1350C>T (NM_000488.4) variant in SERPINC1 does not code for a different amino acid (p.Asn450=). The variant is reported at a POPMAX FAF of 0.0002003 (5/24962) in the African/African American population in gnomAD v2.1.1 meeting BS1 criteria (allele frequency > 0.0002 w/min of 5 alleles). SpliceAI predicts no splicing impact for this variant meeting BP4. In summary, this variant meets criteria to be classified as likely benign. ACMG/AMP criteria applied, as specified by the Thrombosis Variant Curation Expert Panel for SERPINC1: BS1, BP4. LINK:https://erepo.genome.network/evrepo/ui/classification/CA1251215/MONDO:0013144/084

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

SERPINC1
NM_000488.4 synonymous

Scores

2

Clinical Significance

Likely benign reviewed by expert panel B:2

Conservation

PhyloP100: 1.62

Publications

2 publications found
Variant links:
Genes affected
SERPINC1 (HGNC:775): (serpin family C member 1) The protein encoded by this gene, antithrombin III, is a plasma protease inhibitor and a member of the serpin superfamily. This protein inhibits thrombin as well as other activated serine proteases of the coagulation system, and it regulates the blood coagulation cascade. The protein includes two functional domains: the heparin binding-domain at the N-terminus of the mature protein, and the reactive site domain at the C-terminus. The inhibitory activity is enhanced by the presence of heparin. Numerous mutations have been identified for this gene, many of which are known to cause antithrombin-III deficiency which constitutes a strong risk factor for thrombosis. A reduction in the serum level of this protein is associated with severe cases of Coronavirus Disease 19 (COVID-19). [provided by RefSeq, Sep 2020]
SERPINC1 Gene-Disease associations (from GenCC):
  • hereditary antithrombin deficiency
    Inheritance: AD, AR, SD Classification: DEFINITIVE, STRONG, SUPPORTIVE, LIMITED Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics, Genomics England PanelApp, ClinGen

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
For more information check the summary or visit ClinGen Evidence Repository.
BS1
For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SERPINC1NM_000488.4 linkc.1350C>T p.Asn450Asn synonymous_variant Exon 7 of 7 ENST00000367698.4 NP_000479.1 P01008A0A024R944

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SERPINC1ENST00000367698.4 linkc.1350C>T p.Asn450Asn synonymous_variant Exon 7 of 7 1 NM_000488.4 ENSP00000356671.3 P01008

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152216
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000239
AC:
6
AN:
251318
AF XY:
0.0000295
show subpopulations
Gnomad AFR exome
AF:
0.000246
Gnomad AMR exome
AF:
0.0000578
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:
0.00000205
AC:
3
AN:
1461818
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
727224
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33480
American (AMR)
AF:
0.0000224
AC:
1
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53418
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111940
Other (OTH)
AF:
0.00
AC:
0
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
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

Exome 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
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152216
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74368
show subpopulations
African (AFR)
AF:
0.0000482
AC:
2
AN:
41456
American (AMR)
AF:
0.000327
AC:
5
AN:
15270
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68042
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.000356
Hom.:
0
Bravo
AF:
0.0000604

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: reviewed by expert panel
LINK: link

Submissions by phenotype

Hereditary antithrombin deficiency Benign:2
Nov 18, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 25, 2024
Clingen Thrombosis Variant Curation Expert Panel, ClinGen
Significance:Likely benign
Review Status:reviewed by expert panel
Collection Method:curation

The c.1350C>T (NM_000488.4) variant in SERPINC1 does not code for a different amino acid (p.Asn450=). The variant is reported at a POPMAX FAF of 0.0002003 (5/24962) in the African/African American population in gnomAD v2.1.1 meeting BS1 criteria (allele frequency > 0.0002 w/min of 5 alleles). SpliceAI predicts no splicing impact for this variant meeting BP4. In summary, this variant meets criteria to be classified as likely benign. ACMG/AMP criteria applied, as specified by the Thrombosis Variant Curation Expert Panel for SERPINC1: BS1, BP4. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.47
CADD
Benign
4.7
DANN
Benign
0.61
PhyloP100
1.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
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: rs5879; hg19: chr1-173873072; API