NM_001033.5:c.131T>C

Variant names:

• chr11-4106068-T-C
• NM_001033.5:c.131T>C

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001033.5(RRM1):​c.131T>C​(p.Ile44Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 31)
• Consequence: RRM1 NM_001033.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.55
• 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, autosomal recessive 6

  Inheritance: AR, AD Classification: MODERATE, LIMITED Submitted by: PanelApp Australia, G2P
• progressive external ophthalmoplegia with mitochondrial DNA deletions

  Inheritance: AD, AR Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001033.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RRM1	NM_001033.5	MANE Select	c.131T>C	p.Ile44Thr	missense	Exon 3 of 19	NP_001024.1	P23921
	RRM1	NM_001318064.1		c.-5-1367T>C		intron	N/A	NP_001304993.1	B4E0I8

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RRM1	ENST00000300738.10	TSL:1 MANE Select	c.131T>C	p.Ile44Thr	missense	Exon 3 of 19	ENSP00000300738.5	P23921
	RRM1	ENST00000854928.1		c.131T>C	p.Ile44Thr	missense	Exon 3 of 19	ENSP00000524987.1
	RRM1	ENST00000854929.1		c.131T>C	p.Ile44Thr	missense	Exon 3 of 18	ENSP00000524988.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 31

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.80
BayesDel_addAF	Pathogenic	0.25	D
BayesDel_noAF	Uncertain	0.13
CADD	Pathogenic	26
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.56	D
Eigen	Uncertain	0.41
Eigen_PC	Uncertain	0.51
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Benign	0.082	D
MetaRNN	Uncertain	0.70	D
MetaSVM	Benign	-0.81	T
MutationAssessor	Uncertain	2.9	M
PhyloP100		7.5
PrimateAI	Pathogenic	0.92	D
PROVEAN	Uncertain	-4.2	D
REVEL	Uncertain	0.39
Sift	Uncertain	0.012	D
Sift4G	Uncertain	0.052	T
Polyphen		0.11	B
Vest4		0.83
MutPred		0.50		Loss of ubiquitination at K42 (P = 0.051)
MVP		0.57
MPC		2.1
ClinPred		0.98	D
GERP RS		5.8
Varity_R		0.80
gMVP		0.91
Mutation Taster		=20/80	disease causing

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

Other links and lift over

hg19: chr11-4127298;