rs138047705

Positions:

• chr10-96645478-T-A
• chr10-96645478-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_152309.3(PIK3AP1):​c.1370A>T​(p.Asp457Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000658 in 152,044 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D457G) has been classified as Likely benign.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: PIK3AP1 NM_152309.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.13

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.765

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PIK3AP1	NM_152309.3	c.1370A>T	p.Asp457Val	missense_variant	8/17	ENST00000339364.10
PIK3AP1	XM_011539248.2	c.1370A>T	p.Asp457Val	missense_variant	8/16
PIK3AP1	XM_005269499.2	c.836A>T	p.Asp279Val	missense_variant	7/16
PIK3AP1	XM_047424566.1	c.836A>T	p.Asp279Val	missense_variant	9/18

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PIK3AP1	ENST00000339364.10	c.1370A>T	p.Asp457Val	missense_variant	8/17	1	NM_152309.3	P1
PIK3AP1	ENST00000371110.6	c.836A>T	p.Asp279Val	missense_variant	7/16	2
PIK3AP1	ENST00000468783.1	n.1016A>T		non_coding_transcript_exon_variant	7/8	5

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 152044 Hom.: 0 Cov.: 32

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

GnomAD4 exome Cov.: 31

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 152044 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74276

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000147

Gnomad4 OTH AF: 0.00

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.49
BayesDel_addAF	Uncertain	0.12	D
BayesDel_noAF	Uncertain	-0.060
CADD	Pathogenic	27
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.58	D;.
Eigen	Pathogenic	0.72
Eigen_PC	Pathogenic	0.73
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.94	D;D
M_CAP	Benign	0.035	D
MetaRNN	Pathogenic	0.77	D;D
MetaSVM	Benign	-0.97	T
MutationAssessor	Uncertain	2.3	M;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.54	T
PROVEAN	Pathogenic	-4.4	D;D
REVEL	Uncertain	0.37
Sift	Uncertain	0.0010	D;D
Sift4G	Uncertain	0.0050	D;D
Polyphen		1.0	D;.
Vest4		0.92
MutPred		0.44		Loss of solvent accessibility (P = 0.0544);.;
MVP		0.47
MPC		1.7
ClinPred		0.99	D
GERP RS		5.8
Varity_R		0.62
gMVP		0.68

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

Publications

LitVar

Other links and lift over

dbSNP: rs138047705; hg19: chr10-98405235;