chr10-58196487-T-G

Position:

• chr10-58196487-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_152230.5(IPMK):​c.840A>C​(p.Lys280Asn) variant causes a missense 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. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: IPMK NM_152230.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.93

Genes affected

IPMK (HGNC:20739): (inositol polyphosphate multikinase) This gene encodes a member of the inositol phosphokinase family. The encoded protein has 3-kinase, 5-kinase and 6-kinase activities on phosphorylated inositol substrates. The encoded protein plays an important role in the biosynthesis of inositol 1,3,4,5,6-pentakisphosphate, and has a preferred 5-kinase activity. This gene may play a role in nuclear mRNA export. Pseudogenes of this gene are located on the long arm of chromosome 13 and the short arm of chromosome 19. [provided by RefSeq, Dec 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.108082056).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
IPMK	NM_152230.5	c.840A>C	p.Lys280Asn	missense_variant	6/6	ENST00000373935.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
IPMK	ENST00000373935.4	c.840A>C	p.Lys280Asn	missense_variant	6/6	1	NM_152230.5	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

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

Aug 08, 2023

The c.840A>C (p.K280N) alteration is located in exon 6 (coding exon 6) of the IPMK gene. This alteration results from a A to C substitution at nucleotide position 840, causing the lysine (K) at amino acid position 280 to be replaced by an asparagine (N). 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	Benign	0.22
BayesDel_addAF	Benign	-0.21	T
BayesDel_noAF	Benign	-0.54
CADD	Benign	17
DANN	Uncertain	1.0
DEOGEN2	Benign	0.053	T
Eigen	Benign	-0.18
Eigen_PC	Benign	-0.015
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Benign	0.66	T
M_CAP	Benign	0.015	T
MetaRNN	Benign	0.11	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.0	L
MutationTaster	Benign	0.80	D
PrimateAI	Uncertain	0.52	T
PROVEAN	Benign	-0.91	N
REVEL	Benign	0.055
Sift	Benign	0.070	T
Sift4G	Benign	0.25	T
Polyphen		0.012	B
Vest4		0.096
MutPred		0.40		Gain of helix (P = 0.0082);
MVP		0.19
MPC		0.19
ClinPred		0.52	D
GERP RS		4.7
Varity_R		0.16
gMVP		0.37

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: chr10-59956248;