4-154589501-A-T

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM1PM2

The NM_021871.4(FGA):​c.116T>A​(p.Val39Asp) variant causes a missense change. The variant allele was found at a frequency of 0.00000342 in 1,461,766 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as other (no stars).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

FGA
NM_021871.4 missense

Scores

8
11

Clinical Significance

other no assertion criteria provided O:1

Conservation

PhyloP100: 4.47

Publications

2 publications found
Variant links:
Genes affected
FGA (HGNC:3661): (fibrinogen alpha chain) This gene encodes the alpha subunit of the coagulation factor fibrinogen, which is a component of the blood clot. Following vascular injury, the encoded preproprotein is proteolytically processed by thrombin during the conversion of fibrinogen to fibrin. Mutations in this gene lead to several disorders, including dysfibrinogenemia, hypofibrinogenemia, afibrinogenemia and renal amyloidosis. Alternative splicing results in multiple transcript variants, at least one of which encodes an isoform that undergoes proteolytic processing. [provided by RefSeq, Jan 2016]
FGA Gene-Disease associations (from GenCC):
  • familial dysfibrinogenemia
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • congenital afibrinogenemia
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • congenital fibrinogen deficiency
    Inheritance: SD Classification: DEFINITIVE Submitted by: ClinGen
  • familial visceral amyloidosis
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • thrombophilia
    Inheritance: AR, AD Classification: STRONG Submitted by: Genomics England PanelApp
  • AFib amyloidosis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • familial hypofibrinogenemia
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM1
In a hotspot region, there are 5 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 7 uncertain in NM_021871.4
PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FGANM_021871.4 linkc.116T>A p.Val39Asp missense_variant Exon 2 of 5 ENST00000403106.8 NP_068657.1 P02671-2
FGANM_000508.5 linkc.116T>A p.Val39Asp missense_variant Exon 2 of 6 NP_000499.1 P02671-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FGAENST00000403106.8 linkc.116T>A p.Val39Asp missense_variant Exon 2 of 5 1 NM_021871.4 ENSP00000385981.3 P02671-2
FGAENST00000651975.2 linkc.116T>A p.Val39Asp missense_variant Exon 2 of 6 ENSP00000498441.1 P02671-1
ENSG00000306549ENST00000819308.1 linkn.137+2737A>T intron_variant Intron 1 of 1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251310
AF XY:
0.00000736
show subpopulations
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:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461766
Hom.:
0
Cov.:
32
AF XY:
0.00000550
AC XY:
4
AN XY:
727196
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33476
American (AMR)
AF:
0.00
AC:
0
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:
53338
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000450
AC:
5
AN:
1111972
Other (OTH)
AF:
0.00
AC:
0
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
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
Cov.:
32

ClinVar

Significance: other
Submissions summary: Other:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

FIBRINOGEN CANTERBURY Other:1
Sep 29, 2014
OMIM
Significance:other
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.48
BayesDel_addAF
Uncertain
0.095
D
BayesDel_noAF
Benign
-0.10
CADD
Benign
23
DANN
Uncertain
0.98
DEOGEN2
Uncertain
0.74
D;.;.
Eigen
Benign
-0.062
Eigen_PC
Benign
-0.18
FATHMM_MKL
Benign
0.74
D
LIST_S2
Benign
0.79
T;T;T
M_CAP
Benign
0.050
D
MetaRNN
Uncertain
0.65
D;D;D
MetaSVM
Benign
-0.84
T
MutationAssessor
Benign
1.8
L;L;.
PhyloP100
4.5
PrimateAI
Benign
0.34
T
PROVEAN
Uncertain
-3.7
D;D;.
REVEL
Benign
0.27
Sift
Uncertain
0.0020
D;D;.
Sift4G
Uncertain
0.013
D;D;D
Polyphen
0.93
P;D;.
Vest4
0.42
MutPred
0.85
Gain of disorder (P = 0.0218);Gain of disorder (P = 0.0218);Gain of disorder (P = 0.0218);
MVP
0.55
MPC
0.24
ClinPred
0.93
D
GERP RS
4.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.69
gMVP
0.45
Mutation Taster
=23/77
disease causing

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: rs121909614; hg19: chr4-155510653; API