NM_031220.4:c.*3453_*3454insAA

Variant names:

• chr17-6451884-C-CTT
• rs879195140
• NM_031220.4:c.*3453_*3454insAA

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_031220.4(PITPNM3):​c.*3453_*3454insAA variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.00014 (2 hom., cov: 0)
• Consequence: PITPNM3 NM_031220.4 3_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.00
• Publications: 1 publications found

Genes affected

PITPNM3 (HGNC:21043): (PITPNM family member 3) This gene encodes a member of a family of membrane-associated phosphatidylinositol transfer domain-containing proteins. The calcium-binding protein has phosphatidylinositol (PI) transfer activity and interacts with the protein tyrosine kinase PTK2B (also known as PYK2). The protein is homologous to a Drosophila protein that is implicated in the visual transduction pathway in flies. Mutations in this gene result in autosomal dominant cone dystrophy. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Sep 2009]

PITPNM3 Gene-Disease associations (from GenCC):

• cone-rod dystrophy 5

  Inheritance: AD Classification: STRONG, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae)
• cone-rod dystrophy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• BS2: High AC in GnomAd4 at 11 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_031220.4. 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
	PITPNM3	NM_031220.4	MANE Select	c.*3453_*3454insAA		3_prime_UTR	Exon 20 of 20	NP_112497.2	Q9BZ71-1
	PITPNM3	NM_001165966.2		c.*3453_*3454insAA		3_prime_UTR	Exon 19 of 19	NP_001159438.1	Q9BZ71-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PITPNM3	ENST00000262483.13	TSL:1 MANE Select	c.*3453_*3454insAA		3_prime_UTR	Exon 20 of 20	ENSP00000262483.8	Q9BZ71-1
	PITPNM3	ENST00000421306.7	TSL:2	c.*3453_*3454insAA		3_prime_UTR	Exon 19 of 19	ENSP00000407882.3	Q9BZ71-3

Frequencies

GnomAD3 genomes AF: 0.000140 AC: 11 AN: 78564 Hom.: 2 Cov.: 0

Gnomad AFR AF: 0.000536

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000137

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000267

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

GnomAD4 exome Cov.: 0

GnomAD4 genome AF: 0.000140 AC: 11 AN: 78618 Hom.: 2 Cov.: 0 AF XY: 0.000104 AC XY: 4 AN XY: 38346

African (AFR) AF: 0.000535 AC: 9 AN: 16824

American (AMR) AF: 0.000136 AC: 1 AN: 7340

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 1920

East Asian (EAS) AF: 0.000268 AC: 1 AN: 3738

South Asian (SAS) AF: 0.00 AC: 0 AN: 2838

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 5796

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 174

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 38494

Other (OTH) AF: 0.00 AC: 0 AN: 1006

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.0

Splicing

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs879195140; hg19: chr17-6355204;