dbSNP rs121909620: FGB:p.Ala98Thr (chr4-154565985-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_005141.5(FGB):c.292G>A(p.Ala98Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,460,980 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: 6.8e-7 ( 0 hom. )

Consequence

FGB
NM_005141.5 missense

Scores

Clinical Significance

other no assertion criteria provided O:1

Conservation

PhyloP100: 3.53

Publications

4 publications found

Variant links:

Genes affected

FGB (HGNC:3662): (fibrinogen beta chain) The protein encoded by this gene is the beta component of fibrinogen, a blood-borne glycoprotein comprised of three pairs of nonidentical polypeptide chains. Following vascular injury, fibrinogen is cleaved by thrombin to form fibrin which is the most abundant component of blood clots. In addition, various cleavage products of fibrinogen and fibrin regulate cell adhesion and spreading, display vasoconstrictor and chemotactic activities, and are mitogens for several cell types. Fibrinogen serves key roles in hemostasis and antimicrobial host defense. Mutations in this gene lead to several disorders, including afibrinogenemia, dysfibrinogenemia, hypodysfibrinogenemia and thrombotic tendency. [provided by RefSeq, Aug 2020]

FGB Gene-Disease associations (from GenCC):

congenital fibrinogen deficiency
Inheritance: SD Classification: DEFINITIVE Submitted by: ClinGen
thrombophilia
Inheritance: AD, AR Classification: STRONG Submitted by: Genomics England PanelApp
congenital afibrinogenemia
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
familial dysfibrinogenemia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
familial hypofibrinogenemia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

FGB links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FGB	NM_005141.5 link	c.292G>A	p.Ala98Thr	missense_variant	Exon 2 of 8	ENST00000302068.9	NP_005132.2	P02675V9HVY1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FGB	ENST00000302068.9 link	c.292G>A	p.Ala98Thr	missense_variant	Exon 2 of 8	1	NM_005141.5	ENSP00000306099.4		P02675

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1460980

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726776

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33454

American (AMR)

AF:

0.00

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.00

AC:

AN:

86228

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53276

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5252

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111908

Other (OTH)

AF:

0.00

AC:

AN:

60320

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: other

Submissions summary: Other:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

FIBRINOGEN NAPLES

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

Benign

0.12

BayesDel_addAF

Pathogenic

0.19

BayesDel_noAF

Uncertain

0.030

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.37

Eigen

Uncertain

0.28

Eigen_PC

Uncertain

0.28

FATHMM_MKL

Uncertain

0.89

LIST_S2

Uncertain

0.87

M_CAP

Uncertain

0.11

MetaRNN

Uncertain

0.58

MetaSVM

Uncertain

0.0025

MutationAssessor

Uncertain

2.8

PhyloP100

3.5

PrimateAI

Uncertain

0.58

PROVEAN

Benign

-0.94

REVEL

Uncertain

0.52

Sift

Benign

0.13

Sift4G

Uncertain

0.026

Polyphen

0.86

Vest4

0.24

MutPred

0.86

Gain of phosphorylation at A98 (P = 0.0503);

MVP

0.91

MPC

0.23

ClinPred

0.93

GERP RS

5.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.23

gMVP

0.55

Mutation Taster

=33/67

disease causing

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

rs121909620

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over