10-96602303-C-A

Variant names:

• chr10-96602303-C-A
• rs145459703
• NM_152309.3:c.2337G>T

Variant summary

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

The NM_152309.3(PIK3AP1):​c.2337G>T​(p.Val779Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000688 in 1,452,968 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. Synonymous variant affecting the same amino acid position (i.e. V779V) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: PIK3AP1 NM_152309.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.206
• Publications: 1 publications found

Genes affected

PIK3AP1 (HGNC:30034): (phosphoinositide-3-kinase adaptor protein 1) Predicted to enable phosphatidylinositol 3-kinase regulatory subunit binding activity and signaling receptor binding activity. Predicted to be involved in regulation of inflammatory response; regulation of signal transduction; and toll-like receptor signaling pathway. Predicted to be located in cytoplasm and membrane. Predicted to be active in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

LOC105378443 (HGNC:):

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=-0.48).
• BP7: Synonymous conserved (PhyloP=-0.206 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_152309.3. 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
	PIK3AP1	NM_152309.3	MANE Select	c.2337G>T	p.Val779Val	synonymous	Exon 16 of 17	NP_689522.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PIK3AP1	ENST00000339364.10	TSL:1 MANE Select	c.2337G>T	p.Val779Val	synonymous	Exon 16 of 17	ENSP00000339826.5	Q6ZUJ8-1
	PIK3AP1	ENST00000371109.3	TSL:1	c.1134G>T	p.Val378Val	synonymous	Exon 9 of 10	ENSP00000360150.3	Q6ZUJ8-3
	PIK3AP1	ENST00000866991.1		c.2430G>T	p.Val810Val	synonymous	Exon 16 of 17	ENSP00000537050.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.88e-7 AC: 1 AN: 1452968 Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1 AN XY: 722944

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.0000305 AC: 1 AN: 32770

American (AMR) AF: 0.00 AC: 0 AN: 41890

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25780

East Asian (EAS) AF: 0.00 AC: 0 AN: 39580

South Asian (SAS) AF: 0.00 AC: 0 AN: 84870

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53312

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5720

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1109044

Other (OTH) AF: 0.00 AC: 0 AN: 60002

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.48
CADD	Benign	3.0
DANN	Benign	0.61
PhyloP100		-0.21

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: rs145459703; hg19: chr10-98362060;