4-169393800-T-C

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BA1

The NM_001199397.3(NEK1):c.*710A>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.176 in 152,208 control chromosomes in the GnomAD database, including 2,933 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency:
  • Genomes: 𝑓 0.18 (2933 hom., cov: 33)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: NEK1 NM_001199397.3 3_prime_UTR
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.0540

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]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.87).
• BP6: Variant 4-169393800-T-C is Benign according to our data. Variant chr4-169393800-T-C is described in ClinVar as [Benign]. Clinvar id is 348081.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.298 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NEK1	NM_001199397.3	c.*710A>G		3_prime_UTR_variant	36/36	ENST00000507142.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NEK1	ENST00000507142.6	c.*710A>G		3_prime_UTR_variant	36/36	1	NM_001199397.3	A2

Frequencies

GnomAD3 genomes AF: 0.176 AC: 26797 AN: 152090 Hom.: 2931 Cov.: 33

Gnomad AFR AF: 0.0574

Gnomad AMI AF: 0.298

Gnomad AMR AF: 0.206

Gnomad ASJ AF: 0.183

Gnomad EAS AF: 0.0375

Gnomad SAS AF: 0.313

Gnomad FIN AF: 0.165

Gnomad MID AF: 0.187

Gnomad NFE AF: 0.242

Gnomad OTH AF: 0.188

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 2 Hom.: 0 Cov.: 0 AF XY: 0.00 AC XY: 0 AN XY: 2

GnomAD4 genome AF: 0.176 AC: 26795 AN: 152208 Hom.: 2933 Cov.: 33 AF XY: 0.176 AC XY: 13084 AN XY: 74428

Gnomad4 AFR AF: 0.0573

Gnomad4 AMR AF: 0.206

Gnomad4 ASJ AF: 0.183

Gnomad4 EAS AF: 0.0374

Gnomad4 SAS AF: 0.311

Gnomad4 FIN AF: 0.165

Gnomad4 NFE AF: 0.242

Gnomad4 OTH AF: 0.185

Alfa AF: 0.220 Hom.: 4015

Bravo AF: 0.167

Asia WGS AF: 0.179 AC: 619 AN: 3472

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

Short-rib thoracic dysplasia 6 with or without polydactyly Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.87
Cadd	Benign	2.4
Dann	Benign	0.48

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

LitVar

Other links and lift over

dbSNP: rs13212; hg19: chr4-170314951;