NM_006475.3:c.*638G>A

Variant names:

• chr13-37562695-C-T
• rs6750
• NM_006475.3:c.*638G>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_006475.3(POSTN):​c.*638G>A variant causes a 3 prime UTR 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: POSTN NM_006475.3 3_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.144
• Publications: 7 publications found

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]

ACMG classification

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=-0.82).

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

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	POSTN	NM_006475.3	MANE Select	c.*638G>A		3_prime_UTR	Exon 23 of 23	NP_006466.2
	POSTN	NM_001286665.2		c.*638G>A		3_prime_UTR	Exon 22 of 22	NP_001273594.1
	POSTN	NM_001330517.2		c.*638G>A		3_prime_UTR	Exon 22 of 22	NP_001317446.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	POSTN	ENST00000379747.9	TSL:1 MANE Select	c.*638G>A		3_prime_UTR	Exon 23 of 23	ENSP00000369071.4
	POSTN	ENST00000379743.8	TSL:1	c.*638G>A		3_prime_UTR	Exon 22 of 22	ENSP00000369067.4
	POSTN	ENST00000541179.5	TSL:1	c.*638G>A		3_prime_UTR	Exon 21 of 21	ENSP00000437959.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 0

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 47

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
CADD	Benign	2.1
DANN	Benign	0.56
PhyloP100		0.14

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: rs6750; hg19: chr13-38136832;