10-119810199-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_014937.4(INPP5F):c.1669T>C(p.Tyr557His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: INPP5F NM_014937.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.88

Genes affected

INPP5F (HGNC:17054): (inositol polyphosphate-5-phosphatase F) The protein encoded by this gene is an inositol 1,4,5-trisphosphate (InsP3) 5-phosphatase and contains a Sac domain. The activity of this protein is specific for phosphatidylinositol 4,5-bisphosphate and phosphatidylinositol 3,4,5-trisphosphate. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Aug 2011]

(HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
INPP5F	NM_014937.4	c.1669T>C	p.Tyr557His	missense_variant	14/20	ENST00000650623.2
LOC105378513	XR_946359.3	n.464+4289A>G		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
INPP5F	ENST00000650623.2	c.1669T>C	p.Tyr557His	missense_variant	14/20		NM_014937.4	P1
	ENST00000636592.1	n.744+4289A>G		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 26

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 27, 2024

The c.1669T>C (p.Y557H) alteration is located in exon 14 (coding exon 14) of the INPP5F gene. This alteration results from a T to C substitution at nucleotide position 1669, causing the tyrosine (Y) at amino acid position 557 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.93
BayesDel_addAF	Uncertain	0.14	D
BayesDel_noAF	Uncertain	-0.030
Cadd	Pathogenic	27
Dann	Uncertain	1.0
DEOGEN2	Uncertain	0.52	D;.;D;.;.;.;.
Eigen	Uncertain	0.65
Eigen_PC	Uncertain	0.65
FATHMM_MKL	Pathogenic	0.98	D
M_CAP	Benign	0.011	T
MetaRNN	Uncertain	0.65	D;D;D;D;D;D;D
MetaSVM	Benign	-0.93	T
MutationAssessor	Benign	1.8	L;.;L;.;.;.;.
MutationTaster	Benign	1.0	D
PrimateAI	Pathogenic	0.85	D
PROVEAN	Uncertain	-3.4	D;.;.;.;.;.;.
REVEL	Uncertain	0.42
Sift	Benign	0.031	D;.;.;.;.;.;.
Sift4G	Pathogenic	0.0010	D;.;.;.;.;.;.
Polyphen		1.0	D;.;D;.;.;.;.
Vest4		0.81
MutPred		0.45		Gain of relative solvent accessibility (P = 0.09);Gain of relative solvent accessibility (P = 0.09);Gain of relative solvent accessibility (P = 0.09);.;.;.;.;
MVP		0.41
MPC		0.67
ClinPred		0.99	D
GERP RS		5.0
Varity_R		0.58
gMVP		0.68

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr10-121569711;