7-77196509-C-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_006682.3(FGL2):c.1090G>T(p.Asp364Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: FGL2 NM_006682.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.57

Genes affected

FGL2 (HGNC:3696): (fibrinogen like 2) The protein encoded by this gene is a secreted protein that is similar to the beta- and gamma-chains of fibrinogen. The carboxyl-terminus of the encoded protein consists of the fibrinogen-related domains (FRED). The encoded protein forms a tetrameric complex which is stabilized by interchain disulfide bonds. This protein may play a role in physiologic functions at mucosal sites. [provided by RefSeq, Jul 2008]

CCDC146 (HGNC:29296): (coiled-coil domain containing 146) Located in centriole. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.978

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FGL2	NM_006682.3	c.1090G>T	p.Asp364Tyr	missense_variant	2/2	ENST00000248598.6
CCDC146	NM_020879.3	c.156+28685C>A		intron_variant		ENST00000285871.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FGL2	ENST00000248598.6	c.1090G>T	p.Asp364Tyr	missense_variant	2/2	1	NM_006682.3	P1
CCDC146	ENST00000285871.5	c.156+28685C>A		intron_variant		1	NM_020879.3	P1
CCDC146	ENST00000415750.5	c.156+28685C>A		intron_variant		4
FGL2	ENST00000637771.2	n.3340G>T		non_coding_transcript_exon_variant	1/1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 29, 2022

The c.1090G>T (p.D364Y) alteration is located in exon 2 (coding exon 2) of the FGL2 gene. This alteration results from a G to T substitution at nucleotide position 1090, causing the aspartic acid (D) at amino acid position 364 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.97
BayesDel_addAF	Pathogenic	0.45	D
BayesDel_noAF	Pathogenic	0.41
Cadd	Pathogenic	30
Dann	Uncertain	1.0
DEOGEN2	Uncertain	0.54	D
Eigen	Pathogenic	1.1
Eigen_PC	Pathogenic	1.0
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Uncertain	0.22	D
MetaRNN	Pathogenic	0.98	D
MetaSVM	Pathogenic	0.89	D
MutationAssessor	Pathogenic	4.0	H
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Pathogenic	0.79	T
PROVEAN	Pathogenic	-8.8	D
REVEL	Pathogenic	0.90
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.92
MutPred		0.89		Loss of disorder (P = 0.0371);
MVP		0.96
MPC		0.73
ClinPred		1.0	D
GERP RS		6.0
Varity_R		0.90
gMVP		0.99

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr7-76825826;