2-10123851-T-C

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001034.4(RRM2):ā€‹c.434T>Cā€‹(p.Leu145Ser) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 13/23 in silico tools predict a damaging outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

RRM2
NM_001034.4 missense, splice_region

Scores

16
2
1
Splicing: ADA: 0.9039
1
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.93
Variant links:
Genes affected
RRM2 (HGNC:10452): (ribonucleotide reductase regulatory subunit M2) This gene encodes one of two non-identical subunits for ribonucleotide reductase. This reductase catalyzes the formation of deoxyribonucleotides from ribonucleotides. Synthesis of the encoded protein (M2) is regulated in a cell-cycle dependent fashion. Transcription from this gene can initiate from alternative promoters, which results in two isoforms that differ in the lengths of their N-termini. Related pseudogenes have been identified on chromosomes 1 and X. [provided by RefSeq, Sep 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.983

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
RRM2NM_001034.4 linkuse as main transcriptc.434T>C p.Leu145Ser missense_variant, splice_region_variant 4/10 ENST00000304567.10
RRM2NM_001165931.1 linkuse as main transcriptc.614T>C p.Leu205Ser missense_variant, splice_region_variant 4/10
RRM2NR_164157.1 linkuse as main transcriptn.494T>C splice_region_variant, non_coding_transcript_exon_variant 4/13

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
RRM2ENST00000304567.10 linkuse as main transcriptc.434T>C p.Leu145Ser missense_variant, splice_region_variant 4/101 NM_001034.4 P1P31350-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1381042
Hom.:
0
Cov.:
22
AF XY:
0.00
AC XY:
0
AN XY:
691490
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

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 GeneticsJul 25, 2023The c.614T>C (p.L205S) alteration is located in exon 4 (coding exon 4) of the RRM2 gene. This alteration results from a T to C substitution at nucleotide position 614, causing the leucine (L) at amino acid position 205 to be replaced by a serine (S). 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
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.57
D
BayesDel_noAF
Pathogenic
0.59
CADD
Pathogenic
34
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.94
D;.;.;D;D
Eigen
Pathogenic
1.0
Eigen_PC
Pathogenic
0.90
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.96
.;.;D;D;D
M_CAP
Pathogenic
0.76
D
MetaRNN
Pathogenic
0.98
D;D;D;D;D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Pathogenic
4.4
H;.;.;H;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.80
D
PROVEAN
Pathogenic
-5.9
.;D;.;D;D
REVEL
Pathogenic
0.97
Sift
Pathogenic
0.0
.;D;.;D;D
Sift4G
Pathogenic
0.0
.;D;D;D;D
Polyphen
1.0
D;.;.;D;.
Vest4
0.98, 0.99, 0.98
MutPred
0.87
Gain of disorder (P = 0.0019);.;.;Gain of disorder (P = 0.0019);.;
MVP
0.93
MPC
2.0
ClinPred
1.0
D
GERP RS
5.3
Varity_R
0.91
gMVP
1.0

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.90
dbscSNV1_RF
Pathogenic
0.85
SpliceAI score (max)
0.030
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-10263978; API