rs2233518

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_002528.7(NTHL1):​c.116-17C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00188 in 1,598,958 control chromosomes in the GnomAD database, including 40 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). There are indicators that this mutation may affect the branch point..

Frequency

Genomes: 𝑓 0.0098 ( 21 hom., cov: 32)
Exomes 𝑓: 0.0010 ( 19 hom. )

Consequence

NTHL1
NM_002528.7 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: -0.802
Variant links:
Genes affected
NTHL1 (HGNC:8028): (nth like DNA glycosylase 1) The protein encoded by this gene is a DNA N-glycosylase of the endonuclease III family. Like a similar protein in E. coli, the encoded protein has DNA glycosylase activity on DNA substrates containing oxidized pyrimidine residues and has apurinic/apyrimidinic lyase activity. [provided by RefSeq, Oct 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
This position, referring to a specific DNA site, is a probable branch point but is likely benign (scored 2 / 10, using the threshold of <=3). The score ranges from 0 to 10, with values ≤3 considered benign and >5 classified as pathogenic. Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 16-2046383-G-A is Benign according to our data. Variant chr16-2046383-G-A is described in ClinVar as [Benign]. Clinvar id is 1284832.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-2046383-G-A is described in Lovd as [Benign].
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0098 (1493/152300) while in subpopulation AFR AF= 0.0341 (1417/41544). AF 95% confidence interval is 0.0326. There are 21 homozygotes in gnomad4. There are 722 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 21 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NTHL1NM_002528.7 linkc.116-17C>T intron_variant Intron 1 of 5 ENST00000651570.2 NP_002519.2 P78549-2E5KTI5
NTHL1XM_047434171.1 linkc.-181C>T 5_prime_UTR_variant Exon 2 of 6 XP_047290127.1
NTHL1NM_001318193.2 linkc.116-17C>T intron_variant Intron 1 of 4 NP_001305122.2 P78549
NTHL1NM_001318194.2 linkc.-63-17C>T intron_variant Intron 1 of 5 NP_001305123.1 P78549

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NTHL1ENST00000651570.2 linkc.116-17C>T intron_variant Intron 1 of 5 NM_002528.7 ENSP00000498421.1 P78549-2

Frequencies

GnomAD3 genomes
AF:
0.00978
AC:
1488
AN:
152182
Hom.:
21
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0341
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00327
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.00718
GnomAD3 exomes
AF:
0.00267
AC:
656
AN:
245272
Hom.:
10
AF XY:
0.00193
AC XY:
257
AN XY:
133456
show subpopulations
Gnomad AFR exome
AF:
0.0357
Gnomad AMR exome
AF:
0.00157
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000132
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000153
Gnomad OTH exome
AF:
0.00232
GnomAD4 exome
AF:
0.00105
AC:
1516
AN:
1446658
Hom.:
19
Cov.:
31
AF XY:
0.000906
AC XY:
650
AN XY:
717606
show subpopulations
Gnomad4 AFR exome
AF:
0.0347
Gnomad4 AMR exome
AF:
0.00173
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000140
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000131
Gnomad4 OTH exome
AF:
0.00202
GnomAD4 genome
AF:
0.00980
AC:
1493
AN:
152300
Hom.:
21
Cov.:
32
AF XY:
0.00969
AC XY:
722
AN XY:
74476
show subpopulations
Gnomad4 AFR
AF:
0.0341
Gnomad4 AMR
AF:
0.00327
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.00710
Alfa
AF:
0.00519
Hom.:
4
Bravo
AF:
0.0111
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:3
-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Mar 04, 2025
Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Clinical Genetics, Academic Medical Center
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

not provided Benign:2
Feb 04, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Familial adenomatous polyposis 3 Benign:1
Dec 08, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

NTHL1-related disorder Benign:1
Nov 13, 2023
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
3.1
DANN
Benign
0.81
BranchPoint Hunter
2.0

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs2233518; hg19: chr16-2096384; API