chr3-131468063-GAA-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_007208.4(MRPL3):​c.894+26_894+27delTT variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000201 in 994,204 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 29)
Exomes 𝑓: 0.0000020 ( 0 hom. )

Consequence

MRPL3
NM_007208.4 intron

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.90
Variant links:
Genes affected
MRPL3 (HGNC:10379): (mitochondrial ribosomal protein L3) 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 that belongs to the L3P ribosomal protein family. A pseudogene corresponding to this gene is found on chromosome 13q. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MRPL3NM_007208.4 linkc.894+26_894+27delTT intron_variant Intron 9 of 9 ENST00000264995.8 NP_009139.1 P09001

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MRPL3ENST00000264995.8 linkc.894+26_894+27delTT intron_variant Intron 9 of 9 1 NM_007208.4 ENSP00000264995.2 P09001
MRPL3ENST00000425847.6 linkc.975+26_975+27delTT intron_variant Intron 10 of 10 2 ENSP00000398536.2 E7ETU7
MRPL3ENST00000511168.5 linkc.936+26_936+27delTT intron_variant Intron 9 of 9 2 ENSP00000424107.1 H0Y9G6
MRPL3ENST00000510043.1 linkn.318+26_318+27delTT intron_variant Intron 3 of 3 2

Frequencies

GnomAD3 genomes
Cov.:
29
GnomAD4 exome
AF:
0.00000201
AC:
2
AN:
994204
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
502630
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000263
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
29
Bravo
AF:
0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs374998359; hg19: chr3-131186907; API