chr17-8377660-GT-G

Variant names:

• chr17-8377660-GT-G
• NM_000987.5:c.341delA

Variant summary

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

The NM_000987.5(RPL26):​c.341delA​(p.Asp114AlafsTer15) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as not provided (no stars). Synonymous variant affecting the same amino acid position (i.e. D114D) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: RPL26 NM_000987.5 frameshift
• Clinical Significance: not provided no classification provided O:1
• Conservation: PhyloP100: 7.89
• Publications: 0 publications found

Genes affected

RPL26 (HGNC:10327): (ribosomal protein L26) 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 L24P family of ribosomal proteins. It is located in the cytoplasm. As is typical for genes encoding ribosomal proteins, there are multiple processed pseudogenes of this gene dispersed through the genome. Mutations in this gene result in Diamond-Blackfan anemia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2015]

RPL26 Gene-Disease associations (from GenCC):

• Diamond-Blackfan anemia 11

  Inheritance: AD Classification: STRONG, MODERATE, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics, PanelApp Australia
• Diamond-Blackfan anemia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000263809 (HGNC:):

ACMG classification

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

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.221 CDS is truncated, and there are 0 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000987.5. 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
	RPL26	NM_000987.5	MANE Select	c.341delA	p.Asp114AlafsTer15	frameshift	Exon 4 of 4	NP_000978.1	P61254
	RPL26	NM_001315530.2		c.341delA	p.Asp114AlafsTer15	frameshift	Exon 4 of 4	NP_001302459.1	P61254
	RPL26	NM_001315531.2		c.341delA	p.Asp114AlafsTer15	frameshift	Exon 4 of 4	NP_001302460.1	P61254

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RPL26	ENST00000648839.1	MANE Select	c.341delA	p.Asp114AlafsTer15	frameshift	Exon 4 of 4	ENSP00000498177.1	P61254
	ENSG00000263809	ENST00000582471.1	TSL:5	n.310-1557delA		intron	N/A	ENSP00000463847.1	J3QQQ9
	RPL26	ENST00000913691.1		c.365delA	p.Asp122AlafsTer15	frameshift	Exon 4 of 4	ENSP00000583750.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: not provided

Revision: no classification provided

Pathogenic	VUS	Benign	Condition
-	-	-	Diamond-Blackfan anemia 11 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		7.9

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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

hg19: chr17-8280978;