dbSNP rs770473277: PIK3C3:c.1170+3G>A (chr18-42004544-G-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_002647.4(PIK3C3):c.1170+3G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000028 in 1,429,320 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000028 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

PIK3C3
NM_002647.4 splice_region, intron

Scores

Splicing: ADA: 0.00005506

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0720

Publications

0 publications found

Variant links:

Genes affected

PIK3C3 (HGNC:8974): (phosphatidylinositol 3-kinase catalytic subunit type 3) Enables 1-phosphatidylinositol-3-kinase activity. Involved in early endosome to late endosome transport and regulation of cytokinesis. Acts upstream of or within autophagy and protein lipidation. Located in autolysosome; late endosome; and midbody. [provided by Alliance of Genome Resources, Apr 2022]

PIK3C3 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=-0.84).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002647.4. 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
	PIK3C3	NM_002647.4	MANE Select	c.1170+3G>A		splice_region intron	N/A	NP_002638.2
	PIK3C3	NM_001308020.2		c.981+3G>A		splice_region intron	N/A	NP_001294949.1	A8MYT4

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
PIK3C3	ENST00000262039.9	TSL:1 MANE Select	c.1170+3G>A	splice_region intron	N/A	ENSP00000262039.3	Q8NEB9
PIK3C3	ENST00000858068.1		c.1170+3G>A	splice_region intron	N/A	ENSP00000528127.1
PIK3C3	ENST00000858070.1		c.1170+3G>A	splice_region intron	N/A	ENSP00000528129.1

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152046

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000451

AC:

AN:

221938

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000949

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000280

AC:

AN:

1429320

Hom.:

Cov.:

AF XY:

0.00000141

AC XY:

AN XY:

710234

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31312

American (AMR)

AF:

0.00

AC:

AN:

34764

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24198

East Asian (EAS)

AF:

0.00

AC:

AN:

39402

South Asian (SAS)

AF:

0.00

AC:

AN:

80912

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52842

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5570

European-Non Finnish (NFE)

AF:

0.00000363

AC:

AN:

1101378

Other (OTH)

AF:

0.00

AC:

AN:

58942

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.513

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

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00000658

AC:

AN:

152046

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74262

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41376

American (AMR)

AF:

0.00

AC:

AN:

15260

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10604

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68006

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.84

CADD

Benign

1.8

(source)

DANN

Benign

0.61

PhyloP100

0.072

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000055

dbscSNV1_RF

Benign

0.058

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

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