chr4-154604299-T-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_021870.3(FGG):​c.*535A>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000273 in 1,481,592 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

FGG
NM_021870.3 3_prime_UTR

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.93
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.25).
BP6
Variant 4-154604299-T-C is Benign according to our data. Variant chr4-154604299-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 902203.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FGGNM_021870.3 linkuse as main transcriptc.*535A>G 3_prime_UTR_variant 9/9 ENST00000336098.8
FGGNM_000509.6 linkuse as main transcriptc.*41A>G 3_prime_UTR_variant 10/10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FGGENST00000336098.8 linkuse as main transcriptc.*535A>G 3_prime_UTR_variant 9/92 NM_021870.3 P02679-1

Frequencies

GnomAD3 genomes
AF:
0.00128
AC:
195
AN:
152218
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00429
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000524
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:
0.0000588
Gnomad OTH
AF:
0.00239
GnomAD3 exomes
AF:
0.000334
AC:
43
AN:
128684
Hom.:
0
AF XY:
0.000264
AC XY:
18
AN XY:
68158
show subpopulations
Gnomad AFR exome
AF:
0.00468
Gnomad AMR exome
AF:
0.000370
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000749
Gnomad OTH exome
AF:
0.000839
GnomAD4 exome
AF:
0.000156
AC:
208
AN:
1329256
Hom.:
0
Cov.:
22
AF XY:
0.000143
AC XY:
94
AN XY:
656664
show subpopulations
Gnomad4 AFR exome
AF:
0.00441
Gnomad4 AMR exome
AF:
0.000446
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000357
Gnomad4 OTH exome
AF:
0.000542
GnomAD4 genome
AF:
0.00129
AC:
196
AN:
152336
Hom.:
0
Cov.:
32
AF XY:
0.00132
AC XY:
98
AN XY:
74486
show subpopulations
Gnomad4 AFR
AF:
0.00431
Gnomad4 AMR
AF:
0.000523
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00236
Alfa
AF:
0.00119
Hom.:
0
Bravo
AF:
0.00156
Asia WGS
AF:
0.000289
AC:
1
AN:
3470

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Congenital afibrinogenemia Benign:1
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This 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 likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.25
CADD
Benign
17
DANN
Benign
0.88
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
0.97

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs146143405; hg19: chr4-155525451; API