chr11-1988665-T-C

Position:

• chr11-1988665-T-C

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001400176.1(MRPL23):​c.497+15907T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. 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 0.041 (104 hom., cov: 18)
  • Failed GnomAD Quality Control
• Consequence: MRPL23 NM_001400176.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.356

Genes affected

MRPL23 (HGNC:10322): (mitochondrial ribosomal protein L23) 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. The gene is biallelically expressed, despite its location within a region of imprinted genes on chromosome 11. [provided by RefSeq, Jul 2008]

MRPL23-AS1 (HGNC:):

ACMG classification

Verdict is Likely_benign. Variant got -4 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.99).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MRPL23	NM_001400176.1	c.497+15907T>C		intron_variant			NP_001387105.1
MRPL23	XM_011520273.2	c.497+15907T>C		intron_variant			XP_011518575.1
MRPL23-AS1	NR_024471.1	n.95+1161A>G		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MRPL23-AS1	ENST00000419080.3	n.168+1161A>G		intron_variant		3

Frequencies

GnomAD3 genomes AF: 0.00 AC: 3989 AN: 96842 Hom.: 103 Cov.: 18 FAILED QC

Gnomad AFR AF: 0.0592

Gnomad AMI AF: 0.0356

Gnomad AMR AF: 0.0616

Gnomad ASJ AF: 0.0311

Gnomad EAS AF: 0.0480

Gnomad SAS AF: 0.0374

Gnomad FIN AF: 0.0326

Gnomad MID AF: 0.0450

Gnomad NFE AF: 0.0302

Gnomad OTH AF: 0.0355

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

GnomAD4 genome Data not reliable, filtered out with message: AS_VQSR AF: 0.0413 AC: 3998 AN: 96904 Hom.: 104 Cov.: 18 AF XY: 0.0411 AC XY: 1941 AN XY: 47180

Gnomad4 AFR AF: 0.0592

Gnomad4 AMR AF: 0.0619

Gnomad4 ASJ AF: 0.0311

Gnomad4 EAS AF: 0.0481

Gnomad4 SAS AF: 0.0377

Gnomad4 FIN AF: 0.0326

Gnomad4 NFE AF: 0.0302

Gnomad4 OTH AF: 0.0349

Alfa AF: 0.348 Hom.: 8560

Asia WGS AF: 0.459 AC: 1595 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.99
CADD	Benign	5.8
DANN	Benign	0.59

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs1706879; hg19: chr11-2009895;