1-152309716-C-T

Variant names:

• chr1-152309716-C-T
• rs747301529
• NM_002016.2:c.5170G>A

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_002016.2(FLG):​c.5170G>A​(p.Gly1724Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 30)
• Consequence: FLG NM_002016.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.247
• Publications: 2 publications found

Genes affected

FLG (HGNC:3748): (filaggrin) The protein encoded by this gene is an intermediate filament-associated protein that aggregates keratin intermediate filaments in mammalian epidermis. It is initially synthesized as a polyprotein precursor, profilaggrin (consisting of multiple filaggrin units of 324 aa each), which is localized in keratohyalin granules, and is subsequently proteolytically processed into individual functional filaggrin molecules. Mutations in this gene are associated with ichthyosis vulgaris.[provided by RefSeq, Dec 2009]

CCDST (HGNC:55988): (cervical cancer associated DHX9 suppressive transcript)

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.3951769).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FLG	NM_002016.2	c.5170G>A	p.Gly1724Arg	missense_variant	Exon 3 of 3	ENST00000368799.2	NP_002007.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FLG	ENST00000368799.2	c.5170G>A	p.Gly1724Arg	missense_variant	Exon 3 of 3	1	NM_002016.2	ENSP00000357789.1

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Cov.: 107

GnomAD4 genome Cov.: 30

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.33
BayesDel_addAF	Benign	-0.27	T
BayesDel_noAF	Benign	-0.63
CADD	Benign	14
DANN	Benign	0.96
DEOGEN2	Benign	0.028	T
Eigen	Benign	-0.24
Eigen_PC	Benign	-0.47
FATHMM_MKL	Benign	0.031	N
LIST_S2	Benign	0.66	T
M_CAP	Benign	0.0036	T
MetaRNN	Benign	0.40	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.1	M
PhyloP100		0.25
PrimateAI	Benign	0.25	T
PROVEAN	Benign	-1.1	N
REVEL	Benign	0.14
Sift	Benign	0.19	T
Polyphen		1.0	D
Vest4		0.33
MutPred		0.69		Gain of solvent accessibility (P = 0.1319);
MVP		0.30
ClinPred		0.50	D
GERP RS		3.1
Varity_R		0.15
gMVP		0.011
Mutation Taster		=99/1	polymorphism

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

Other links and lift over

dbSNP: rs747301529; hg19: chr1-152282192; COSMIC: COSV64240140; COSMIC: COSV64240140;