rs10935317

chr3-139307683-A-Cchr3-139307683-A-Gchr3-139307683-A-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The ENST00000495075.5(MRPS22):c.-71-36273A>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.428 in 151,902 control chromosomes in the GnomAD database, including 14,422 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.43 (14422 hom., cov: 32)
• Consequence: MRPS22 ENST00000495075.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.249

Genes affected

MRPS22 (HGNC:14508): (mitochondrial ribosomal protein S22) 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 28S subunit protein that does not seem to have a counterpart in prokaryotic and fungal-mitochondrial ribosomes. This gene lies telomeric of and is transcribed in the opposite direction from the forkhead box L2 gene. A pseudogene corresponding to this gene is found on chromosome Xq. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).
• BA1: GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.563 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MRPS22	ENST00000495075.5	c.-71-36273A>C		intron_variant		1		P4
MRPS22	ENST00000684961.1	c.-43+24787A>C		intron_variant
MRPS22	ENST00000687538.1	c.-39+24787A>C		intron_variant

Frequencies

GnomAD3 genomes AF: 0.428 AC: 64918 AN: 151784 Hom.: 14405 Cov.: 32

Gnomad AFR AF: 0.384

Gnomad AMI AF: 0.407

Gnomad AMR AF: 0.572

Gnomad ASJ AF: 0.408

Gnomad EAS AF: 0.565

Gnomad SAS AF: 0.449

Gnomad FIN AF: 0.454

Gnomad MID AF: 0.369

Gnomad NFE AF: 0.407

Gnomad OTH AF: 0.446

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.428 AC: 64966 AN: 151902 Hom.: 14422 Cov.: 32 AF XY: 0.434 AC XY: 32199 AN XY: 74232

Gnomad4 AFR AF: 0.383

Gnomad4 AMR AF: 0.573

Gnomad4 ASJ AF: 0.408

Gnomad4 EAS AF: 0.565

Gnomad4 SAS AF: 0.450

Gnomad4 FIN AF: 0.454

Gnomad4 NFE AF: 0.407

Gnomad4 OTH AF: 0.450

Alfa AF: 0.417 Hom.: 17856

Bravo AF: 0.442

Asia WGS AF: 0.513 AC: 1779 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
Cadd	Benign	1.1
Dann	Benign	0.39

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

Publications

LitVar

Other links and lift over

dbSNP: rs10935317; hg19: chr3-139026525;