rs785467

Variant names:

• chr1-46055887-A-G
• rs785467
• NM_003629.4:c.849T>C

Your query was ambiguous. Multiple possible variants found:

• chr1-46055887-A-G
• chr1-46055887-A-T

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_003629.4(PIK3R3):​c.849T>C​(p.Asn283Asn) variant causes a synonymous 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: 29)
• Consequence: PIK3R3 NM_003629.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.16
• Publications: 43 publications found

Genes affected

PIK3R3 (HGNC:8981): (phosphoinositide-3-kinase regulatory subunit 3) Phosphatidylinositol 3-kinase (PI3K) phosphorylates phosphatidylinositol and similar compounds, which then serve as second messengers in growth signaling pathways. PI3K is composed of a catalytic and a regulatory subunit. The protein encoded by this gene represents a regulatory subunit of PI3K. The encoded protein contains two SH2 domains through which it binds activated protein tyrosine kinases to regulate their activity. [provided by RefSeq, Jun 2016]

P3R3URF-PIK3R3 (HGNC:54999): (P3R3URF-PIK3R3 readthrough) This locus represents naturally occurring readthrough transcription between the neighboring genes LOC110117498 and PIK3R3. The readthrough transcript encodes a fusion protein that shares sequence identity with each individual gene product. [provided by RefSeq, Apr 2017]

ACMG classification

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

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.51).
• BP7: Synonymous conserved (PhyloP=1.16 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003629.4. 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
	PIK3R3	NM_003629.4	MANE Select	c.849T>C	p.Asn283Asn	synonymous	Exon 7 of 10	NP_003620.3
	P3R3URF-PIK3R3	NM_001303427.2		c.987T>C	p.Asn329Asn	synonymous	Exon 7 of 10	NP_001290356.1
	PIK3R3	NM_001303428.1		c.900T>C	p.Asn300Asn	synonymous	Exon 8 of 11	NP_001290357.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PIK3R3	ENST00000262741.10	TSL:1 MANE Select	c.849T>C	p.Asn283Asn	synonymous	Exon 7 of 10	ENSP00000262741.5
	P3R3URF-PIK3R3	ENST00000540385.2	TSL:2	c.987T>C	p.Asn329Asn	synonymous	Exon 7 of 10	ENSP00000439913.1
	PIK3R3	ENST00000372006.5	TSL:1	c.849T>C	p.Asn283Asn	synonymous	Exon 8 of 11	ENSP00000361075.1

Frequencies

GnomAD3 genomes Cov.: 29

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 29

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.51
CADD	Benign	11
DANN	Benign	0.62
PhyloP100		1.2
Mutation Taster		=100/0	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs785467; hg19: chr1-46521559;