Genetic Variant POSTN:c.2432-33G>T (chr13-37564593-C-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_006475.3(POSTN):c.2432-33G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000485 in 1,443,050 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 30)

Exomes 𝑓: 0.0000039 ( 0 hom. )

Consequence

POSTN
NM_006475.3 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.0920

Publications

13 publications found

Variant links:

Genes affected

POSTN (HGNC:16953): (periostin) This gene encodes a secreted extracellular matrix protein that functions in tissue development and regeneration, including wound healing, and ventricular remodeling following myocardial infarction. The encoded protein binds to integrins to support adhesion and migration of epithelial cells. This protein plays a role in cancer stem cell maintenance and metastasis. Mice lacking this gene exhibit cardiac valve disease, and skeletal and dental defects. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Sep 2015]

POSTN links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.75).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006475.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
POSTN	NM_006475.3	MANE Select	c.2432-33G>T	intron	N/A	NP_006466.2	Q15063-1
POSTN	NM_001286665.2		c.2351-33G>T	intron	N/A	NP_001273594.1	Q15063-5
POSTN	NM_001330517.2		c.2348-33G>T	intron	N/A	NP_001317446.1	Q15063-8

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
POSTN	ENST00000379747.9	TSL:1 MANE Select	c.2432-33G>T	intron	N/A	ENSP00000369071.4	Q15063-1
POSTN	ENST00000379743.8	TSL:1	c.2351-33G>T	intron	N/A	ENSP00000369067.4	Q15063-5
POSTN	ENST00000541179.5	TSL:1	c.2267-33G>T	intron	N/A	ENSP00000437959.1	Q15063-3

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151574

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000818

AC:

AN:

244512

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000623

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:

0.00000387

AC:

AN:

1291476

Hom.:

Cov.:

AF XY:

0.00000307

AC XY:

AN XY:

650952

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

29602

American (AMR)

AF:

0.0000463

AC:

AN:

43158

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25018

East Asian (EAS)

AF:

0.00

AC:

AN:

38534

South Asian (SAS)

AF:

0.00

AC:

AN:

80994

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53034

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5424

European-Non Finnish (NFE)

AF:

0.00000104

AC:

AN:

960972

Other (OTH)

AF:

0.0000365

AC:

AN:

54740

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.435

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:

0.0000132

AC:

AN:

151574

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

73982

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41312

American (AMR)

AF:

0.000131

AC:

AN:

15238

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5152

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10540

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67730

Other (OTH)

AF:

0.00

AC:

AN:

2082

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

133132

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.75

CADD

Benign

7.6

(source)

DANN

Benign

0.73

PhyloP100

0.092

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

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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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over