1-212738436-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_015471.4(NSL1):​c.818G>A​(p.Arg273Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000936 in 1,612,714 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00010 ( 1 hom. )

Consequence

NSL1
NM_015471.4 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.639
Variant links:
Genes affected
NSL1 (HGNC:24548): (NSL1 component of MIS12 kinetochore complex) This gene encodes a protein with two coiled-coil domains that localizes to kinetochores, which are chromosome-associated structures that attach to microtubules and mediate chromosome movements during cell division. The encoded protein is part of a conserved protein complex that includes two chromodomain-containing proteins and a component of the outer plate of the kinetochore. This protein complex is proposed to bridge centromeric heterochromatin with the outer kinetochore structure. Multiple transcript variants encoding different isoforms have been found for this gene. There is a pseudogene of the 3' UTR region of this gene on chromosome X. [provided by RefSeq, Jul 2014]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.023917645).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NSL1NM_015471.4 linkuse as main transcriptc.818G>A p.Arg273Gln missense_variant 6/6 ENST00000366977.8 NP_056286.3 Q96IY1-1Q53FM2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NSL1ENST00000366977.8 linkuse as main transcriptc.818G>A p.Arg273Gln missense_variant 6/61 NM_015471.4 ENSP00000355944.3 Q96IY1-1
NSL1ENST00000366978.5 linkuse as main transcriptc.191-11257G>A intron_variant 2 ENSP00000355945.1 Q5SY76
NSL1ENST00000366976.3 linkuse as main transcriptc.*231G>A downstream_gene_variant 2 ENSP00000355943.1 Q5SY74

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152086
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000578
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
GnomAD3 exomes
AF:
0.0000519
AC:
13
AN:
250404
Hom.:
0
AF XY:
0.0000591
AC XY:
8
AN XY:
135378
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000600
Gnomad SAS exome
AF:
0.0000328
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000882
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000100
AC:
146
AN:
1460508
Hom.:
1
Cov.:
31
AF XY:
0.000103
AC XY:
75
AN XY:
726594
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00285
Gnomad4 SAS exome
AF:
0.0000581
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000216
Gnomad4 OTH exome
AF:
0.0000663
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152206
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74412
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000579
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151
ExAC
AF:
0.0000659
AC:
8

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 01, 2024The c.818G>A (p.R273Q) alteration is located in exon 6 (coding exon 6) of the NSL1 gene. This alteration results from a G to A substitution at nucleotide position 818, causing the arginine (R) at amino acid position 273 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.088
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.52
CADD
Benign
19
DANN
Uncertain
0.99
DEOGEN2
Benign
0.039
T
Eigen
Benign
-0.25
Eigen_PC
Benign
-0.23
FATHMM_MKL
Benign
0.52
D
LIST_S2
Benign
0.74
T
M_CAP
Benign
0.0086
T
MetaRNN
Benign
0.024
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.3
M
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-1.4
N
REVEL
Benign
0.045
Sift
Benign
0.084
T
Sift4G
Benign
0.13
T
Polyphen
0.85
P
Vest4
0.12
MVP
0.60
MPC
0.29
ClinPred
0.11
T
GERP RS
0.23
Varity_R
0.10
gMVP
0.28

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

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

Other links and lift over

dbSNP: rs199984145; hg19: chr1-212911778; API