2-74472168-C-T

Variant names:

• chr2-74472168-C-T
• rs369319739
• NM_053050.5:c.290G>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_053050.5(MRPL53):​c.290G>A​(p.Arg97Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000041 in 1,461,862 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000041 (0 hom.)
• Consequence: MRPL53 NM_053050.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.89
• Publications: 0 publications found

Genes affected

MRPL53 (HGNC:16684): (mitochondrial ribosomal protein L53) Mammalian mitochondrial ribosomal proteins are encoded by nuclear genes and help in protein synthesis within the mitochondrion. Mitochondrial ribosomes (mitoribosomes) consist of a small 28S subunit and a large 39S subunit. They have an estimated 75% protein to rRNA composition compared to prokaryotic ribosomes, where this ratio is reversed. Another difference between mammalian mitoribosomes and prokaryotic ribosomes is that the latter contain a 5S rRNA. Among different species, the proteins comprising the mitoribosome differ greatly in sequence, and sometimes in biochemical properties, which prevents easy recognition by sequence homology. This gene encodes a 39S subunit protein. A pseudogene corresponding to this gene is found on chromosome 1p. [provided by RefSeq, Jul 2008]

CCDC142 (HGNC:25889): (coiled-coil domain containing 142)

ENSG00000286883 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.04299).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_053050.5. 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
	MRPL53	NM_053050.5	MANE Select	c.290G>A	p.Arg97Lys	missense	Exon 3 of 3	NP_444278.1	Q96EL3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MRPL53	ENST00000258105.8	TSL:1 MANE Select	c.290G>A	p.Arg97Lys	missense	Exon 3 of 3	ENSP00000258105.7	Q96EL3
	MRPL53	ENST00000906488.1		c.287G>A	p.Arg96Lys	missense	Exon 3 of 3	ENSP00000576547.1
	MRPL53	ENST00000409710.1	TSL:2	c.177G>A	p.Gln59Gln	synonymous	Exon 2 of 2	ENSP00000386920.1	B9A051

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000410 AC: 6 AN: 1461862 Hom.: 0 Cov.: 32 AF XY: 0.00000413 AC XY: 3 AN XY: 727236

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: 26132

East Asian (EAS) AF: 0.0000504 AC: 2 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53402

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

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1112010

Other (OTH) AF: 0.0000497 AC: 3 AN: 60390

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

Asia WGS AF: 0.000289 AC: 1 AN: 3478

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	Benign	0.12
BayesDel_addAF	Benign	-0.27	T
BayesDel_noAF	Benign	-0.63
CADD	Benign	19
DANN	Benign	0.79
DEOGEN2	Benign	0.0023	T
Eigen	Benign	-1.0
Eigen_PC	Benign	-0.95
FATHMM_MKL	Benign	0.012	N
LIST_S2	Benign	0.44	T
M_CAP	Benign	0.0055	T
MetaRNN	Benign	0.043	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.76	N
PhyloP100		1.9
PrimateAI	Uncertain	0.52	T
PROVEAN	Benign	1.1	N
REVEL	Benign	0.096
Sift	Benign	1.0	T
Sift4G	Benign	1.0	T
Polyphen		0.0010	B
Vest4		0.14
MutPred		0.35		Gain of ubiquitination at R97 (P = 0.0066)
MVP		0.23
MPC		0.47
ClinPred		0.095	T
GERP RS		3.0
Varity_R		0.12
gMVP		0.20
Mutation Taster		=94/6	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: rs369319739; hg19: chr2-74699295;