chr4-169585461-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PP3_ModeratePP5

The NM_001199397.3(NEK1):​c.695G>A​(p.Arg232His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000192 in 1,613,140 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R232C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000019 ( 1 hom. )

Consequence

NEK1
NM_001199397.3 missense

Scores

6
10
3

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:2

Conservation

PhyloP100: 7.80

Publications

0 publications found
Variant links:
Genes affected
NEK1 (HGNC:7744): (NIMA related kinase 1) The protein encoded by this gene is a serine/threonine kinase involved in cell cycle regulation. The encoded protein is found in a centrosomal complex with FEZ1, a neuronal protein that plays a role in axonal development. Defects in this gene are a cause of polycystic kidney disease (PKD). Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2010]
NEK1 Gene-Disease associations (from GenCC):
  • amyotrophic lateral sclerosis, susceptibility to, 24
    Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, ClinGen
  • short-rib thoracic dysplasia 6 with or without polydactyly
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
  • orofaciodigital syndrome type II
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • short rib-polydactyly syndrome, Majewski type
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.848
PP5
Variant 4-169585461-C-T is Pathogenic according to our data. Variant chr4-169585461-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 266044.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NEK1NM_001199397.3 linkc.695G>A p.Arg232His missense_variant Exon 10 of 36 ENST00000507142.6 NP_001186326.1 Q96PY6-3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NEK1ENST00000507142.6 linkc.695G>A p.Arg232His missense_variant Exon 10 of 36 1 NM_001199397.3 ENSP00000424757.2 Q96PY6-3

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152066
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000201
AC:
5
AN:
248896
AF XY:
0.0000296
show subpopulations
Gnomad AFR exome
AF:
0.0000646
Gnomad AMR exome
AF:
0.0000291
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000192
AC:
28
AN:
1461074
Hom.:
1
Cov.:
30
AF XY:
0.0000261
AC XY:
19
AN XY:
726842
show subpopulations
African (AFR)
AF:
0.000299
AC:
10
AN:
33464
American (AMR)
AF:
0.0000224
AC:
1
AN:
44674
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26128
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39674
South Asian (SAS)
AF:
0.0000928
AC:
8
AN:
86224
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53384
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
0.00000720
AC:
8
AN:
1111408
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60356
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.440
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
2
4
6
8
10
<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
AF:
0.0000197
AC:
3
AN:
152066
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74282
show subpopulations
African (AFR)
AF:
0.0000242
AC:
1
AN:
41388
American (AMR)
AF:
0.00
AC:
0
AN:
15264
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10594
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68014
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000108
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.00000828
AC:
1

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Motor neuron disease Pathogenic:1
Aug 31, 2016
Centre for Genomic and Experimental Medicine, University of Edinburgh
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:case-control

- -

not specified Uncertain:1
Sep 02, 2016
Genetic Services Laboratory, University of Chicago
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Short-rib thoracic dysplasia 6 with or without polydactyly Uncertain:1
Aug 16, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant has not been reported in the literature in individuals affected with NEK1-related conditions. This variant is present in population databases (rs772747361, gnomAD 0.01%). This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 232 of the NEK1 protein (p.Arg232His). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt NEK1 protein function. ClinVar contains an entry for this variant (Variation ID: 266044). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.75
BayesDel_addAF
Uncertain
0.042
T
BayesDel_noAF
Uncertain
0.030
CADD
Pathogenic
31
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.27
T;.;.;.;.
Eigen
Pathogenic
0.79
Eigen_PC
Pathogenic
0.80
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.93
D;D;D;D;D
M_CAP
Benign
0.054
D
MetaRNN
Pathogenic
0.85
D;D;D;D;D
MetaSVM
Uncertain
-0.25
T
MutationAssessor
Uncertain
2.1
M;M;M;M;M
PhyloP100
7.8
PrimateAI
Uncertain
0.60
T
PROVEAN
Uncertain
-3.6
D;D;D;D;D
REVEL
Uncertain
0.52
Sift
Uncertain
0.015
D;D;D;D;T
Sift4G
Uncertain
0.038
D;D;D;D;D
Polyphen
1.0
D;.;D;D;D
Vest4
0.80
MutPred
0.69
Loss of MoRF binding (P = 0.0483);Loss of MoRF binding (P = 0.0483);Loss of MoRF binding (P = 0.0483);Loss of MoRF binding (P = 0.0483);Loss of MoRF binding (P = 0.0483);
MVP
0.82
MPC
0.38
ClinPred
0.78
D
GERP RS
5.7
Varity_R
0.61
gMVP
0.74
Mutation Taster
=40/60
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs772747361; hg19: chr4-170506612; API