NM_016183.4:c.558G>T

Variant names:

• chr1-19258541-G-T
• rs1446031002
• NM_016183.4:c.558G>T

Variant summary

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

The NM_016183.4(MRTO4):​c.558G>T​(p.Gln186His) 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. 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. Q186P) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: MRTO4 NM_016183.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.61
• Publications: 0 publications found

Genes affected

MRTO4 (HGNC:18477): (MRT4 homolog, ribosome maturation factor) This gene encodes a protein sharing a low level of sequence similarity with ribosomal protein P0. While the precise function of the encoded protein is currently unknown, it appears to be involved in mRNA turnover and ribosome assembly. [provided by RefSeq, Jul 2008]

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, 0.859

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016183.4. 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
	MRTO4	NM_016183.4	MANE Select	c.558G>T	p.Gln186His	missense	Exon 7 of 8	NP_057267.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MRTO4	ENST00000330263.5	TSL:1 MANE Select	c.558G>T	p.Gln186His	missense	Exon 7 of 8	ENSP00000364320.3	Q9UKD2
	MRTO4	ENST00000857508.1		c.558G>T	p.Gln186His	missense	Exon 7 of 8	ENSP00000527567.1
	MRTO4	ENST00000933910.1		c.531G>T	p.Gln177His	missense	Exon 7 of 8	ENSP00000603969.1

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	0.98
BayesDel_addAF	Pathogenic	0.43	D
BayesDel_noAF	Pathogenic	0.38
CADD	Uncertain	26
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.49	T
Eigen	Pathogenic	0.81
Eigen_PC	Pathogenic	0.74
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Uncertain	0.96	D
M_CAP	Benign	0.037	D
MetaRNN	Pathogenic	0.86	D
MetaSVM	Uncertain	0.019	D
MutationAssessor	Pathogenic	3.3	M
PhyloP100		3.6
PrimateAI	Uncertain	0.71	T
PROVEAN	Pathogenic	-4.7	D
REVEL	Uncertain	0.39
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.0020	D
Polyphen		1.0	D
Vest4		0.88
MutPred		0.65		Gain of helix (P = 0.0854)
MVP		0.75
MPC		0.30
ClinPred		0.99	D
GERP RS		5.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.69
gMVP		0.73
Mutation Taster		=55/45	polymorphism

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

dbSNP: rs1446031002; hg19: chr1-19585035;