Genetic Variant NM_005022.4:c.327G>A (chr17-4945996-C-T) – ACMG Classification: Benign (-9 pts)

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_ModerateBP6_ModerateBP7BS2

The NM_005022.4(PFN1):c.327G>A(p.Thr109Thr) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000615 in 1,608,854 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000065 ( 0 hom. )

Consequence

PFN1
NM_005022.4 splice_region, synonymous

Scores

Splicing: ADA: 0.002395

Clinical Significance

Likely benign criteria provided, single submitter B:2

Conservation

PhyloP100: 0.459

Publications

2 publications found

Variant links:

Genes affected

PFN1 (HGNC:8881): (profilin 1) This gene encodes a member of the profilin family of small actin-binding proteins. The encoded protein plays an important role in actin dynamics by regulating actin polymerization in response to extracellular signals. Deletion of this gene is associated with Miller-Dieker syndrome, and the encoded protein may also play a role in Huntington disease. Multiple pseudogenes of this gene are located on chromosome 1. [provided by RefSeq, Jul 2012]

PFN1 Gene-Disease associations (from GenCC):

amyotrophic lateral sclerosis type 18
Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: ClinGen, Genomics England PanelApp, Ambry Genetics, Labcorp Genetics (formerly Invitae)
amyotrophic lateral sclerosis
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

PFN1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.33).

BP6

Variant 17-4945996-C-T is Benign according to our data. Variant chr17-4945996-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 772741.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=0.459 with no splicing effect.

BS2

High AC in GnomAdExome4 at 95 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005022.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PFN1	NM_005022.4	MANE Select	c.327G>A	p.Thr109Thr	splice_region synonymous	Exon 3 of 3	NP_005013.1	P07737
	PFN1	NM_001375991.1		c.*411G>A		3_prime_UTR	Exon 2 of 2	NP_001362920.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PFN1	ENST00000225655.6	TSL:1 MANE Select	c.327G>A	p.Thr109Thr	splice_region synonymous	Exon 3 of 3	ENSP00000225655.5	P07737
PFN1	ENST00000896490.1		c.327G>A	p.Thr109Thr	splice_region synonymous	Exon 4 of 4	ENSP00000566549.1
PFN1	ENST00000896491.1		c.327G>A	p.Thr109Thr	splice_region synonymous	Exon 4 of 4	ENSP00000566550.1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

151988

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000597

AC:

AN:

251450

AF XY:

0.0000221

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000114

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000652

AC:

AN:

1456866

Hom.:

Cov.:

AF XY:

0.0000565

AC XY:

AN XY:

725156

show subpopulations

African (AFR)

AF:

0.0000898

AC:

AN:

33390

American (AMR)

AF:

0.0000224

AC:

AN:

44712

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26106

East Asian (EAS)

AF:

0.00

AC:

AN:

39668

South Asian (SAS)

AF:

0.00

AC:

AN:

86114

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53408

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

0.0000822

AC:

AN:

1107490

Other (OTH)

AF:

0.00

AC:

AN:

60218

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.449

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:

0.0000263

AC:

AN:

151988

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74214

show subpopulations

African (AFR)

AF:

0.0000242

AC:

AN:

41374

American (AMR)

AF:

0.00

AC:

AN:

15248

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4816

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10584

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68010

Other (OTH)

AF:

0.00

AC:

AN:

2078

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.463

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:

0.000101

Hom.:

Bravo

AF:

0.0000642

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000593

ClinVar

ClinVar submissions as Germline

Significance:Likely benign

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

PFN1-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.33

CADD

Benign

(source)

DANN

Benign

0.87

PhyloP100

0.46

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.0024

dbscSNV1_RF

Benign

0.074

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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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