rs755927285

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001130009.3(GEN1):​c.1202G>A​(p.Arg401Gln) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000554 in 1,445,262 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

GEN1
NM_001130009.3 missense, splice_region

Scores

2
5
12
Splicing: ADA: 1.000
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.38
Variant links:
Genes affected
GEN1 (HGNC:26881): (GEN1 Holliday junction 5' flap endonuclease) This gene encodes a member of the Rad2/xeroderma pigmentosum group G nuclease family, whose members are characterized by N-terminal and internal xeroderma pigmentosum group G nuclease domains followed by helix-hairpin-helix domains and disordered C-terminal domains. The protein encoded by this gene is involved in resolution of Holliday junctions, which are intermediate four-way structures that covalently link DNA during homologous recombination and double-strand break repair. The protein resolves Holliday junctions by creating dual incisions across the junction to produce nicked duplex products that can be ligated. In addition, this protein has been found to localize to centrosomes where it has been implicated in regulation of centrosome integrity. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2016]
SMC6 (HGNC:20466): (structural maintenance of chromosomes 6) Enables ubiquitin protein ligase binding activity. Involved in several processes, including cellular senescence; positive regulation of chromosome segregation; and telomere maintenance via recombination. Located in chromosome and nuclear body. Part of Smc5-Smc6 complex. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GEN1NM_001130009.3 linkuse as main transcriptc.1202G>A p.Arg401Gln missense_variant, splice_region_variant 11/14 ENST00000381254.7 NP_001123481.3
LOC105373449XR_939762.3 linkuse as main transcriptn.409-9754C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GEN1ENST00000381254.7 linkuse as main transcriptc.1202G>A p.Arg401Gln missense_variant, splice_region_variant 11/145 NM_001130009.3 ENSP00000370653 P1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000828
AC:
2
AN:
241418
Hom.:
0
AF XY:
0.00000767
AC XY:
1
AN XY:
130414
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000310
Gnomad ASJ exome
AF:
0.000104
Gnomad EAS exome
AF:
0.00
Gnomad SAS 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:
0.00000554
AC:
8
AN:
1445262
Hom.:
0
Cov.:
29
AF XY:
0.00000557
AC XY:
4
AN XY:
718728
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000467
Gnomad4 ASJ exome
AF:
0.0000390
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000241
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.06e-7
Gnomad4 OTH exome
AF:
0.0000336
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000624
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.00000824
AC:
1

ClinVar

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

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingUniversity of Washington Department of Laboratory Medicine, University of WashingtonNov 20, 2015- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.094
T
BayesDel_noAF
Benign
-0.28
CADD
Pathogenic
34
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.0084
T;T;.
Eigen
Uncertain
0.55
Eigen_PC
Uncertain
0.58
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.93
.;D;D
M_CAP
Benign
0.032
D
MetaRNN
Benign
0.30
T;T;T
MetaSVM
Benign
-0.78
T
MutationAssessor
Uncertain
2.7
M;M;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-0.78
N;N;.
REVEL
Benign
0.15
Sift
Benign
0.055
T;T;.
Sift4G
Uncertain
0.016
D;D;D
Polyphen
0.93
P;P;.
Vest4
0.59
MutPred
0.39
Loss of MoRF binding (P = 0.0283);Loss of MoRF binding (P = 0.0283);.;
MVP
0.77
MPC
0.20
ClinPred
0.80
D
GERP RS
5.3
Varity_R
0.32
gMVP
0.53

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
1.0
SpliceAI score (max)
0.71
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.71
Position offset: 0

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: rs755927285; hg19: chr2-17955668; COSMIC: COSV58055149; API