NM_018150.4:c.461G>A

Variant names:

• chr1-44412558-G-A
• rs1291731673
• NM_018150.4:c.461G>A

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP2

The NM_018150.4(RNF220):​c.461G>A​(p.Arg154His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000889 in 1,461,894 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R154C) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000089 (0 hom.)
• Consequence: RNF220 NM_018150.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 9.60
• Publications: 0 publications found

Genes affected

RNF220 (HGNC:25552): (ring finger protein 220) Predicted to enable ubiquitin protein ligase activity. Involved in positive regulation of canonical Wnt signaling pathway. Part of protein-containing complex. [provided by Alliance of Genome Resources, Apr 2022]

RNF220 Gene-Disease associations (from GenCC):

• leukodystrophy, hypomyelinating, 23, with ataxia, deafness, liver dysfunction, and dilated cardiomyopathy

  Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 2 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Gene score misZ: 2.2243 (below the threshold of 3.09). Trascript score misZ: 2.8161 (below the threshold of 3.09). GenCC associations: The gene is linked to leukodystrophy, hypomyelinating, 23, with ataxia, deafness, liver dysfunction, and dilated cardiomyopathy.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018150.4. 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
	RNF220	NM_018150.4	MANE Select	c.461G>A	p.Arg154His	missense	Exon 2 of 15	NP_060620.2
	RNF220	NM_001376486.1		c.461G>A	p.Arg154His	missense	Exon 2 of 15	NP_001363415.1
	RNF220	NM_001376487.1		c.461G>A	p.Arg154His	missense	Exon 2 of 15	NP_001363416.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RNF220	ENST00000361799.7	TSL:1 MANE Select	c.461G>A	p.Arg154His	missense	Exon 2 of 15	ENSP00000354872.2	Q5VTB9-1
	RNF220	ENST00000355387.6	TSL:1	c.461G>A	p.Arg154His	missense	Exon 2 of 15	ENSP00000347548.2	Q5VTB9-1
	RNF220	ENST00000925767.1		c.461G>A	p.Arg154His	missense	Exon 2 of 15	ENSP00000595826.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251474 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS 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: 0.00000889 AC: 13 AN: 1461894 Hom.: 0 Cov.: 31 AF XY: 0.00000963 AC XY: 7 AN XY: 727248

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.0000108 AC: 12 AN: 1112012

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000935 Hom.: 0

ClinVar

ClinVar submissions as Germline

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	Benign	0.11
BayesDel_addAF	Pathogenic	0.29	D
BayesDel_noAF	Pathogenic	0.28
CADD	Pathogenic	33
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.048	T
Eigen	Pathogenic	0.76
Eigen_PC	Pathogenic	0.81
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.94	D
M_CAP	Benign	0.010	T
MetaRNN	Uncertain	0.73	D
MetaSVM	Benign	-0.50	T
MutationAssessor	Benign	0.69	N
PhyloP100		9.6
PrimateAI	Pathogenic	0.89	D
PROVEAN	Benign	-1.1	N
REVEL	Uncertain	0.31
Sift	Uncertain	0.0070	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.84
MutPred		0.26		Loss of phosphorylation at S156 (P = 0.0686)
MVP		0.49
MPC		2.0
ClinPred		0.71	D
GERP RS		5.7
Varity_R		0.10
gMVP		0.57
Mutation Taster		=37/63	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		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: rs1291731673; hg19: chr1-44878230; COSMIC: COSV100698566; COSMIC: COSV100698566;