NM_018150.4:c.216G>A

Variant names:

• chr1-44412313-G-A
• NM_018150.4:c.216G>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.216G>A​(p.Met72Ile) 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M72V) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• 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.216G>A	p.Met72Ile	missense	Exon 2 of 15	NP_060620.2
	RNF220	NM_001376486.1		c.216G>A	p.Met72Ile	missense	Exon 2 of 15	NP_001363415.1
	RNF220	NM_001376487.1		c.216G>A	p.Met72Ile	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.216G>A	p.Met72Ile	missense	Exon 2 of 15	ENSP00000354872.2	Q5VTB9-1
	RNF220	ENST00000355387.6	TSL:1	c.216G>A	p.Met72Ile	missense	Exon 2 of 15	ENSP00000347548.2	Q5VTB9-1
	RNF220	ENST00000925767.1		c.216G>A	p.Met72Ile	missense	Exon 2 of 15	ENSP00000595826.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

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	0.73
BayesDel_addAF	Pathogenic	0.42	D
BayesDel_noAF	Pathogenic	0.36
CADD	Pathogenic	26
DANN	Uncertain	0.99
DEOGEN2	Benign	0.088	T
Eigen	Uncertain	0.50
Eigen_PC	Uncertain	0.65
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.94	D
M_CAP	Benign	0.0029	T
MetaRNN	Uncertain	0.62	D
MetaSVM	Benign	-0.82	T
MutationAssessor	Benign	0.81	L
PhyloP100		9.6
PrimateAI	Pathogenic	0.83	D
PROVEAN	Benign	-0.95	N
REVEL	Uncertain	0.39
Sift	Uncertain	0.011	D
Sift4G	Uncertain	0.021	D
Polyphen		0.68	P
Vest4		0.90
MutPred		0.31		Gain of catalytic residue at M72 (P = 0.007)
MVP		0.70
MPC		1.8
ClinPred		0.78	D
GERP RS		6.0
Varity_R		0.38
gMVP		0.64
Mutation Taster		=45/55	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: chr1-44877985;