NM_001199397.3:c.3830A>G

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PM5PP3_Moderate

The NM_001199397.3(NEK1):​c.3830A>G​(p.Asp1277Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000019 in 1,580,360 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D1277A) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

NEK1
NM_001199397.3 missense

Scores

9
9
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.54

Publications

2 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: Likely_pathogenic. The variant received 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr4-169400242-T-G is described in ClinVar as Pathogenic. ClinVar VariationId is 545536.Status of the report is no_assertion_criteria_provided, 0 stars.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.855

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NEK1NM_001199397.3 linkc.3830A>G p.Asp1277Gly missense_variant Exon 35 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.3830A>G p.Asp1277Gly missense_variant Exon 35 of 36 1 NM_001199397.3 ENSP00000424757.2 Q96PY6-3

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152228
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000492
AC:
1
AN:
203350
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000116
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000140
AC:
2
AN:
1428132
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
706818
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33030
American (AMR)
AF:
0.00
AC:
0
AN:
40706
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25482
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38828
South Asian (SAS)
AF:
0.00
AC:
0
AN:
81372
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51304
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5694
European-Non Finnish (NFE)
AF:
0.00000183
AC:
2
AN:
1092638
Other (OTH)
AF:
0.00
AC:
0
AN:
59078
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152228
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74374
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41468
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5204
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68038
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Short-rib thoracic dysplasia 6 with or without polydactyly Uncertain:1
Apr 13, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces aspartic acid with glycine at codon 1249 of the NEK1 protein (p.Asp1249Gly). The aspartic acid residue is highly conserved and there is a moderate physicochemical difference between aspartic acid and glycine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with NEK1-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site, but this prediction has not been confirmed by published transcriptional studies. 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.93
BayesDel_addAF
Pathogenic
0.42
D
BayesDel_noAF
Pathogenic
0.36
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.50
T;.;.;.;.
Eigen
Pathogenic
0.81
Eigen_PC
Pathogenic
0.80
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Pathogenic
0.98
D;D;D;D;D
M_CAP
Uncertain
0.27
D
MetaRNN
Pathogenic
0.86
D;D;D;D;D
MetaSVM
Uncertain
0.52
D
MutationAssessor
Uncertain
2.3
M;.;.;.;.
PhyloP100
7.5
PrimateAI
Uncertain
0.76
T
PROVEAN
Uncertain
-4.0
D;D;D;D;D
REVEL
Pathogenic
0.84
Sift
Pathogenic
0.0
D;D;D;D;D
Sift4G
Uncertain
0.0080
D;D;D;D;D
Polyphen
1.0
D;.;D;D;D
Vest4
0.86
MutPred
0.48
Gain of relative solvent accessibility (P = 0.0215);.;.;.;.;
MVP
0.95
MPC
0.40
ClinPred
1.0
D
GERP RS
5.8
Varity_R
0.75
gMVP
0.75
Mutation Taster
=44/56
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
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: rs1157065841; hg19: chr4-170321393; API