NM_005141.5:c.843G>T

Variant names:

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_005141.5(FGB):c.843G>T(p.Val281Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00379 in 1,614,090 control chromosomes in the GnomAD database, including 180 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.020 ( 96 hom., cov: 32)

Exomes 𝑓: 0.0021 ( 84 hom. )

Consequence

FGB
NM_005141.5 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.291

Publications

3 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: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.69).

BP6

Variant 4-154569192-G-T is Benign according to our data. Variant chr4-154569192-G-T is described in ClinVar as Benign. ClinVar VariationId is 259649.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-0.291 with no splicing effect.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0663 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FGB	NM_005141.5 link	c.843G>T	p.Val281Val	synonymous_variant	Exon 6 of 8	ENST00000302068.9	NP_005132.2	P02675V9HVY1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
FGB	ENST00000302068.9 link	c.843G>T	p.Val281Val	synonymous_variant	Exon 6 of 8	1	NM_005141.5	ENSP00000306099.4	P02675
FGB	ENST00000509493.1 link	c.186G>T	p.Val62Val	synonymous_variant	Exon 4 of 6	5		ENSP00000426757.1	D6REL8
FGB	ENST00000502545.5 link	n.824G>T		non_coding_transcript_exon_variant	Exon 6 of 7	5

Frequencies

GnomAD3 genomes

AF:

0.0199

AC:

3029

AN:

152152

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0686

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00812

Gnomad ASJ

AF:

0.00144

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.0000941

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000279

Gnomad OTH

AF:

0.0168

GnomAD2 exomes

AF:

0.00521

AC:

1309

AN:

251364

AF XY:

0.00399

show subpopulations

Gnomad AFR exome

AF:

0.0677

Gnomad AMR exome

AF:

0.00376

Gnomad ASJ exome

AF:

0.00258

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000317

Gnomad OTH exome

AF:

0.00261

GnomAD4 exome

AF:

0.00211

AC:

3088

AN:

1461820

Hom.:

Cov.:

AF XY:

0.00182

AC XY:

1321

AN XY:

727220

show subpopulations

African (AFR)

AF:

0.0689

AC:

2305

AN:

33472

American (AMR)

AF:

0.00396

AC:

177

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00145

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39686

South Asian (SAS)

AF:

0.0000928

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00537

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000182

AC:

202

AN:

1111974

Other (OTH)

AF:

0.00541

AC:

327

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.468

Heterozygous variant carriers

160

320

480

640

800

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

164

246

328

410

<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:

0.0199

AC:

3030

AN:

152270

Hom.:

Cov.:

AF XY:

0.0190

AC XY:

1413

AN XY:

74456

show subpopulations

African (AFR)

AF:

0.0684

AC:

2843

AN:

41536

American (AMR)

AF:

0.00811

AC:

124

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00144

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.000415

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.0000941

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000279

AC:

AN:

68036

Other (OTH)

AF:

0.0166

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

145

290

434

579

724

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

128

160

<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:

0.0115

Hom.:

Bravo

AF:

0.0231

Asia WGS

AF:

0.00202

AC:

AN:

3478

EpiCase

AF:

0.000218

EpiControl

AF:

0.000474

ClinVar

Significance: Benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Jan 30, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Benign:1

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Congenital afibrinogenemia

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.69

CADD

Benign

6.4

(source)

DANN

Benign

0.69

PhyloP100

-0.29

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=100/0

polymorphism (auto)

(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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over