Genetic Variant CFL2:c.*738A>G (chr14-34712127-T-C) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBS1_Supporting

The NM_138638.5(CFL2):c.*738A>G variant causes a 3 prime UTR change. The variant allele was found at a frequency of 0.000123 in 454,554 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00028 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000043 ( 0 hom. )

Consequence

CFL2
NM_138638.5 3_prime_UTR

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.17

Publications

0 publications found

Variant links:

Genes affected

CFL2 (HGNC:1875): (cofilin 2) This gene encodes an intracellular protein that is involved in the regulation of actin-filament dynamics. This protein is a major component of intranuclear and cytoplasmic actin rods. It can bind G- and F-actin in a 1:1 ratio of cofilin to actin, and it reversibly controls actin polymerization and depolymerization in a pH-dependent manner. Mutations in this gene cause nemaline myopathy type 7, a form of congenital myopathy. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2009]

CFL2 Gene-Disease associations (from GenCC):

nemaline myopathy 7
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, ClinGen, Labcorp Genetics (formerly Invitae), Ambry Genetics
typical nemaline myopathy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

CFL2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.46).

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000282 (43/152348) while in subpopulation AFR AF = 0.000986 (41/41592). AF 95% confidence interval is 0.000746. There are 0 homozygotes in GnomAd4. There are 21 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_138638.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
CFL2	NM_138638.5	MANE Select	c.*738A>G	3_prime_UTR	Exon 4 of 4	NP_619579.1	Q549N0
CFL2	NM_021914.8		c.*738A>G	3_prime_UTR	Exon 4 of 4	NP_068733.1	Q9Y281-1
CFL2	NM_001243645.2		c.*738A>G	3_prime_UTR	Exon 4 of 4	NP_001230574.1	Q9Y281-3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
CFL2	ENST00000298159.11	TSL:1 MANE Select	c.*738A>G	3_prime_UTR	Exon 4 of 4	ENSP00000298159.6	Q9Y281-1
CFL2	ENST00000341223.8	TSL:1	c.*738A>G	3_prime_UTR	Exon 4 of 4	ENSP00000340635.3	Q9Y281-1
CFL2	ENST00000554470.5	TSL:1	n.*919A>G	non_coding_transcript_exon	Exon 4 of 4	ENSP00000450862.1	G3V2U0

Frequencies

GnomAD3 genomes

AF:

0.000282

AC:

AN:

152230

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000989

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000586

AC:

AN:

136570

AF XY:

0.0000405

show subpopulations

Gnomad AFR exome

AF:

0.00124

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000430

AC:

AN:

302206

Hom.:

Cov.:

AF XY:

0.0000406

AC XY:

AN XY:

172242

show subpopulations

African (AFR)

AF:

0.00129

AC:

AN:

8554

American (AMR)

AF:

0.00

AC:

AN:

27274

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

10786

East Asian (EAS)

AF:

0.00

AC:

AN:

9210

South Asian (SAS)

AF:

0.00

AC:

AN:

59648

European-Finnish (FIN)

AF:

0.00

AC:

AN:

12790

Middle Eastern (MID)

AF:

0.00

AC:

AN:

1150

European-Non Finnish (NFE)

AF:

0.0000126

AC:

AN:

158748

Other (OTH)

AF:

0.00

AC:

AN:

14046

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000282

AC:

AN:

152348

Hom.:

Cov.:

AF XY:

0.000282

AC XY:

AN XY:

74508

show subpopulations

African (AFR)

AF:

0.000986

AC:

AN:

41592

American (AMR)

AF:

0.00

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5196

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68016

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.523

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000498

Hom.:

Bravo

AF:

0.000302

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Nemaline myopathy 7 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.46

CADD

Benign

(source)

DANN

Benign

0.89

PhyloP100

4.2

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over