chr16-89562883-G-C

Variant names:

• chr16-89562883-G-C
• rs111631219
• NM_000977.4:c.478-1G>C

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PVS1_Strong PM2

The NM_000977.4(RPL13):​c.478-1G>C variant causes a splice acceptor, intron change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 3/3 splice prediction tools predicting alterations to normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: RPL13 NM_000977.4 splice_acceptor, intron
• Scores: Splicing: ADA: 0.9999
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 9.88
• Publications: 0 publications found

Genes affected

RPL13 (HGNC:10303): (ribosomal protein L13) Ribosomes, the organelles that catalyze protein synthesis, consist of a small 40S subunit and a large 60S subunit. Together these subunits are composed of 4 RNA species and approximately 80 structurally distinct proteins. This gene encodes a ribosomal protein that is a component of the 60S subunit. The protein belongs to the L13E family of ribosomal proteins. It is located in the cytoplasm. This gene is expressed at significantly higher levels in benign breast lesions than in breast carcinomas. Alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. As is typical for genes encoding ribosomal proteins, there are multiple processed pseudogenes of this gene dispersed through the genome. [provided by RefSeq, Jul 2011]

RPL13 Gene-Disease associations (from GenCC):

• spondyloepimetaphyseal dysplasia, Isidor-Toutain type

  Inheritance: AD Classification: STRONG, LIMITED Submitted by: Ambry Genetics, PanelApp Australia, G2P, Labcorp Genetics (formerly Invitae)
• spondyloepiphyseal dysplasia

  Inheritance: AD Classification: MODERATE Submitted by: Franklin by Genoox

ACMG classification

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

• PVS1: Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 2.6084905 fraction of the gene. No cryptic splice site detected. Exon removal is inframe change.
• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000977.4. 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
	RPL13	NM_000977.4	MANE Select	c.478-1G>C		splice_acceptor intron	N/A	NP_000968.2
	RPL13	NM_033251.2		c.478-1G>C		splice_acceptor intron	N/A	NP_150254.1	P26373-1
	RPL13	NM_001243131.1		c.337-1G>C		splice_acceptor intron	N/A	NP_001230060.1	P26373-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RPL13	ENST00000311528.10	TSL:1 MANE Select	c.478-1G>C		splice_acceptor intron	N/A	ENSP00000307889.5	P26373-1
	RPL13	ENST00000393099.4	TSL:1	c.478-1G>C		splice_acceptor intron	N/A	ENSP00000376811.3	P26373-1
	RPL13	ENST00000562879.5	TSL:1	n.*126-1G>C		splice_acceptor intron	N/A	ENSP00000457174.1	H3BTH3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Uncertain	0.031	T
BayesDel_noAF	Benign	-0.19
CADD	Pathogenic	35
DANN	Uncertain	0.98
Eigen	Pathogenic	0.87
Eigen_PC	Uncertain	0.62
FATHMM_MKL	Pathogenic	0.98	D
PhyloP100		9.9
GERP RS		3.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Pathogenic	1.0
dbscSNV1_RF	Pathogenic	0.78
SpliceAI score (max)		0.97		Details are displayed if max score is > 0.2
DS_AG_spliceai		0.97		Position offset: 10
DS_AL_spliceai		0.96		Position offset: 1

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

Other links and lift over

dbSNP: rs111631219; hg19: chr16-89629291;