11-4119902-C-G

Variant names:

• chr11-4119902-C-G
• rs183484
• NM_001033.5:c.850C>G

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_001033.5(RRM1):​c.850C>G​(p.Arg284Gly) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: RRM1 NM_001033.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.82
• Publications: 0 publications found

Genes affected

RRM1 (HGNC:10451): (ribonucleotide reductase catalytic subunit M1) This gene encodes the large and catalytic subunit of ribonucleotide reductase, an enzyme essential for the conversion of ribonucleotides into deoxyribonucleotides. A pool of available deoxyribonucleotides is important for DNA replication during S phase of the cell cycle as well as multiple DNA repair processes. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2015]

RRM1 Gene-Disease associations (from GenCC):

• progressive external ophthalmoplegia with mitochondrial DNA deletions

  Inheritance: AR, AD Classification: LIMITED Submitted by: Ambry Genetics
• progressive external ophthalmoplegia with mitochondrial dna deletions, autosomal recessive 6

  Inheritance: AR, AD Classification: LIMITED Submitted by: G2P

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.915

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RRM1	NM_001033.5	c.850C>G	p.Arg284Gly	missense_variant	Exon 9 of 19	ENST00000300738.10	NP_001024.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RRM1	ENST00000300738.10	c.850C>G	p.Arg284Gly	missense_variant	Exon 9 of 19	1	NM_001033.5	ENSP00000300738.5

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1447964 Hom.: 0 Cov.: 28 AF XY: 0.00 AC XY: 0 AN XY: 721162

African (AFR) AF: 0.00 AC: 0 AN: 33374

American (AMR) AF: 0.00 AC: 0 AN: 44230

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26026

East Asian (EAS) AF: 0.00 AC: 0 AN: 39590

South Asian (SAS) AF: 0.00 AC: 0 AN: 85692

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53390

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5732

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1099968

Other (OTH) AF: 0.00 AC: 0 AN: 59962

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Pathogenic	0.28	D
BayesDel_noAF	Pathogenic	0.16
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Benign	0.36	T;.
Eigen	Uncertain	0.66
Eigen_PC	Pathogenic	0.69
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.99	D;D
M_CAP	Uncertain	0.17	D
MetaRNN	Pathogenic	0.91	D;D
MetaSVM	Benign	-0.64	T
MutationAssessor	Pathogenic	3.0	M;.
PhyloP100		5.8
PrimateAI	Pathogenic	0.84	D
PROVEAN	Pathogenic	-6.9	D;D
REVEL	Uncertain	0.50
Sift	Pathogenic	0.0	D;D
Sift4G	Benign	0.11	T;T
Polyphen		0.97	D;.
Vest4		0.84
MutPred		0.64		Loss of MoRF binding (P = 0.0156);.;
MVP		0.85
MPC		2.2
ClinPred		1.0	D
GERP RS		5.7
Varity_R		0.92
gMVP		0.93
Mutation Taster		=8/92	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs183484; hg19: chr11-4141132;