Genetic Variant NEK8:p.Arg326Leu (chr17-28737906-G-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_178170.3(NEK8):c.977G>T(p.Arg326Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000342 in 1,461,508 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R326W) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

NEK8
NM_178170.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.66

Publications

0 publications found

Variant links:

Genes affected

NEK8 (HGNC:13387): (NIMA related kinase 8) This gene encodes a member of the serine/threionine protein kinase family related to NIMA (never in mitosis, gene A) of Aspergillus nidulans. The encoded protein may play a role in cell cycle progression from G2 to M phase. Mutations in the related mouse gene are associated with a disease phenotype that closely parallels the juvenile autosomal recessive form of polycystic kidney disease in humans. [provided by RefSeq, Jul 2008]

NEK8 Gene-Disease associations (from GenCC):

renal-hepatic-pancreatic dysplasia 2
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, G2P, Ambry Genetics
autosomal dominant polycystic kidney disease
Inheritance: AD Classification: STRONG Submitted by: ClinGen
nephronophthisis 9
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
polycystic kidney disease 8
Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
nephronophthisis 2
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
renal-hepatic-pancreatic dysplasia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

NEK8 links:

ENSG00000265073 (HGNC:):

ENSG00000265073 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NEK8	NM_178170.3 link	c.977G>T	p.Arg326Leu	missense_variant	Exon 7 of 15	ENST00000268766.11	NP_835464.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein
NEK8	ENST00000268766.11 link	c.977G>T	p.Arg326Leu	missense_variant	Exon 7 of 15	1	NM_178170.3	ENSP00000268766.6
NEK8	ENST00000592510.1 link	c.536G>T	p.Arg179Leu	missense_variant	Exon 4 of 5	3		ENSP00000466476.1
NEK8	ENST00000543014.1 link	n.1137G>T		non_coding_transcript_exon_variant	Exon 6 of 11	2		ENSP00000465859.1
ENSG00000265073	ENST00000584779.1 link	n.417+4443C>A		intron_variant	Intron 1 of 1	5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461508

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727062

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86252

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53082

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00000450

AC:

AN:

1111988

Other (OTH)

AF:

0.00

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.455

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.22

BayesDel_addAF

Pathogenic

0.19

BayesDel_noAF

Uncertain

0.040

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.51

Eigen

Benign

-0.044

Eigen_PC

Benign

0.021

FATHMM_MKL

Uncertain

0.92

LIST_S2

Uncertain

0.91

M_CAP

Uncertain

0.24

MetaRNN

Uncertain

0.47

MetaSVM

Benign

-0.50

MutationAssessor

Benign

1.2

PhyloP100

6.7

PrimateAI

Uncertain

0.61

PROVEAN

Uncertain

-2.8

REVEL

Uncertain

0.54

Sift

Benign

0.18

Sift4G

Benign

0.13

Polyphen

0.56

Vest4

0.56

MutPred

0.43

Loss of loop (P = 0.0288);

MVP

0.88

MPC

0.36

ClinPred

0.95

GERP RS

4.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.29

Mutation Taster

=78/22

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over