dbSNP rs2066877: FGG:c.1129+712G>A (chr4-154605993-C-T) – ACMG Classification: Benign (-14 pts)

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBA1

The NM_021870.3(FGG):c.1129+712G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0174 in 152,180 control chromosomes in the GnomAD database, including 76 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.017 ( 76 hom., cov: 32)

Consequence

FGG
NM_021870.3 intron

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.00200

Publications

0 publications found

Variant links:

Genes affected

FGG (HGNC:3694): (fibrinogen gamma chain) The protein encoded by this gene is the gamma 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. Mutations in this gene lead to several disorders, including dysfibrinogenemia, hypofibrinogenemia and thrombophilia. Alternative splicing results in transcript variants encoding different isoforms. [provided by RefSeq, Aug 2015]

FGG Gene-Disease associations (from GenCC):

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

FGG links:

ENSG00000287770 (HGNC:):

ENSG00000287770 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.92).

BP6

Variant 4-154605993-C-T is Benign according to our data. Variant chr4-154605993-C-T is described in ClinVar as [Benign]. Clinvar id is 1268953.Status of the report is criteria_provided_single_submitter, 1 stars.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0581 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FGG	NM_021870.3 link	c.1129+712G>A		intron_variant	Intron 8 of 8	ENST00000336098.8	NP_068656.2	P02679-1
FGG	NM_000509.6 link	c.1129+712G>A		intron_variant	Intron 8 of 9		NP_000500.2	P02679-2A0A140VJJ6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FGG	ENST00000336098.8 link	c.1129+712G>A		intron_variant	Intron 8 of 8	2	NM_021870.3	ENSP00000336829.3		P02679-1

Frequencies

GnomAD3 genomes

AF:

0.0173

AC:

2631

AN:

152062

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0599

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00550

Gnomad ASJ

AF:

0.000289

Gnomad EAS

AF:

0.00116

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.000426

Gnomad OTH

AF:

0.0148

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome

AF:

0.0174

AC:

2647

AN:

152180

Hom.:

Cov.:

AF XY:

0.0165

AC XY:

1226

AN XY:

74432

show subpopulations

African (AFR)

AF:

0.0601

AC:

2494

AN:

41512

American (AMR)

AF:

0.00549

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.000289

AC:

AN:

3466

East Asian (EAS)

AF:

0.00116

AC:

AN:

5166

South Asian (SAS)

AF:

0.00

AC:

AN:

4818

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00680

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000426

AC:

AN:

68000

Other (OTH)

AF:

0.0147

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

113

225

338

450

563

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

112

140

<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:

0.00762

Hom.:

Bravo

AF:

0.0198

Asia WGS

AF:

0.00693

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Jun 20, 2021

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.92

CADD

Benign

1.1

(source)

DANN

Benign

0.61

PhyloP100

0.0020

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

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over