chr6-61978074-G-T

Position:

• chr6-61978074-G-T

Variant summary

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

The NM_152688.4(KHDRBS2):​c.475C>A​(p.Leu159Met) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: KHDRBS2 NM_152688.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.65

Genes affected

KHDRBS2 (HGNC:18114): (KH RNA binding domain containing, signal transduction associated 2) Predicted to enable mRNA binding activity and poly(A) binding activity. Predicted to be involved in regulation of alternative mRNA splicing, via spliceosome. Predicted to be located in nucleoplasm. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

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	Protein	UniProt
KHDRBS2	NM_152688.4	c.475C>A	p.Leu159Met	missense_variant	4/9	ENST00000281156.5	NP_689901.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KHDRBS2	ENST00000281156.5	c.475C>A	p.Leu159Met	missense_variant	4/9	1	NM_152688.4	ENSP00000281156	P1
KHDRBS2	ENST00000675091.1	c.475C>A	p.Leu159Met	missense_variant, NMD_transcript_variant	4/10			ENSP00000502245

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 29

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

Jun 18, 2021

The c.475C>A (p.L159M) alteration is located in exon 4 (coding exon 4) of the KHDRBS2 gene. This alteration results from a C to A substitution at nucleotide position 475, causing the leucine (L) at amino acid position 159 to be replaced by a methionine (M). 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	0.92
BayesDel_addAF	Uncertain	0.022	T
BayesDel_noAF	Benign	-0.21
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.19	T
Eigen	Uncertain	0.58
Eigen_PC	Uncertain	0.54
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Uncertain	0.95	D
M_CAP	Benign	0.048	D
MetaRNN	Uncertain	0.72	D
MetaSVM	Benign	-0.96	T
MutationAssessor	Uncertain	2.3	M
MutationTaster	Benign	1.0	D
PrimateAI	Pathogenic	0.85	D
PROVEAN	Benign	-1.9	N
REVEL	Benign	0.28
Sift	Pathogenic	0.0	D
Sift4G	Benign	0.093	T
Polyphen		1.0	D
Vest4		0.73
MutPred		0.43		Gain of ubiquitination at K156 (P = 0.0564);
MVP		0.75
MPC		0.33
ClinPred		0.98	D
GERP RS		3.7
Varity_R		0.55
gMVP		0.61

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: chr6-62687979;