rs753945728

Variant names:

• chr7-128849379-C-G
• rs753945728
• NM_001458.5:c.5000C>G

Your query was ambiguous. Multiple possible variants found:

• chr7-128849379-C-G
• chr7-128849379-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001458.5(FLNC):​c.5000C>G​(p.Thr1667Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T1667M) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: FLNC NM_001458.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.72
• Publications: 0 publications found

Genes affected

FLNC (HGNC:3756): (filamin C) This gene encodes one of three related filamin genes, specifically gamma filamin. These filamin proteins crosslink actin filaments into orthogonal networks in cortical cytoplasm and participate in the anchoring of membrane proteins for the actin cytoskeleton. Three functional domains exist in filamin: an N-terminal filamentous actin-binding domain, a C-terminal self-association domain, and a membrane glycoprotein-binding domain. Mutations in this gene are a cause of cardiopathy. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2022]

FLNC Gene-Disease associations (from GenCC):

• dilated cardiomyopathy

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen, Ambry Genetics, G2P
• myofibrillar myopathy 5

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, ClinGen, G2P
• hypertrophic cardiomyopathy 26

  Inheritance: AD Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, PanelApp Australia
• distal myopathy with posterior leg and anterior hand involvement

  Inheritance: AD Classification: MODERATE, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics
• familial isolated restrictive cardiomyopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• heart conduction disease

  Inheritance: AD Classification: LIMITED Submitted by: Genomics England PanelApp

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001458.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FLNC	NM_001458.5	MANE Select	c.5000C>G	p.Thr1667Arg	missense	Exon 30 of 48	NP_001449.3
	FLNC	NM_001127487.2		c.5000C>G	p.Thr1667Arg	missense	Exon 30 of 47	NP_001120959.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FLNC	ENST00000325888.13	TSL:1 MANE Select	c.5000C>G	p.Thr1667Arg	missense	Exon 30 of 48	ENSP00000327145.8
	FLNC	ENST00000346177.6	TSL:1	c.5000C>G	p.Thr1667Arg	missense	Exon 30 of 47	ENSP00000344002.6
	FLNC	ENST00000714183.1		c.5000C>G	p.Thr1667Arg	missense	Exon 30 of 47	ENSP00000519472.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 36

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Myofibrillar myopathy 5;C3279722:Distal myopathy with posterior leg and anterior hand involvement;C4310749:Hypertrophic cardiomyopathy 26;CN239310:Dilated Cardiomyopathy, Dominant (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.45
BayesDel_addAF	Pathogenic	0.23	D
BayesDel_noAF	Uncertain	0.090
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.73	D
Eigen	Uncertain	0.64
Eigen_PC	Uncertain	0.59
FATHMM_MKL	Uncertain	0.89	D
LIST_S2	Uncertain	0.95	D
M_CAP	Uncertain	0.16	D
MetaRNN	Uncertain	0.74	D
MetaSVM	Uncertain	0.61	D
MutationAssessor	Uncertain	2.7	M
PhyloP100		1.7
PrimateAI	Uncertain	0.79	T
PROVEAN	Uncertain	-4.0	D
REVEL	Uncertain	0.56
Sift	Uncertain	0.0020	D
Sift4G	Uncertain	0.0080	D
Polyphen		0.99	D
Vest4		0.66
MutPred		0.62		Loss of glycosylation at T1667 (P = 0.0766)
MVP		0.76
MPC		1.0
ClinPred		0.99	D
GERP RS		5.7
Varity_R		0.75
gMVP		0.77
Mutation Taster		=56/44	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: rs753945728; hg19: chr7-128489433;