17-42998748-G-A

Variant names:

• chr17-42998748-G-A
• rs1085307119
• ENST00000589913.6:c.-3G>A

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM2 PP3_Strong PP5

The ENST00000589913.6(RPL27):​c.-3G>A variant causes a 5 prime UTR change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 33)
• Consequence: RPL27 ENST00000589913.6 5_prime_UTR
• Scores: Splicing: ADA: 1.000
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 7.86
• Publications: 1 publications found

Genes affected

RPL27 (HGNC:10328): (ribosomal protein L27) Ribosomes, the organelles that catalyze protein synthesis, consist of a small 40S subunit and a large 60S subunit. Together these subunits are composed of four RNA species and approximately 80 structurally distinct proteins. This gene encodes a member of the L27e family of ribosomal proteins and a component of the 60S subunit. A splice site mutation in this gene has been identified in a Diamond-Blackfan anemia (DBA) patient. As is typical for genes encoding ribosomal proteins, there are multiple processed pseudogenes of this gene dispersed through the genome. [provided by RefSeq, Mar 2017]

RPL27 Gene-Disease associations (from GenCC):

• Diamond-Blackfan anemia 16

  Inheritance: AD, Unknown Classification: MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), PanelApp Australia

LOC124904006 (HGNC:):

ACMG classification

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF, max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
• PP5: Variant 17-42998748-G-A is Pathogenic according to our data. Variant chr17-42998748-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 417776.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000589913.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RPL27	NM_000988.5	MANE Select	c.-2-1G>A		splice_acceptor intron	N/A	NP_000979.1
	RPL27	NM_001349922.2		c.-3G>A		5_prime_UTR	Exon 1 of 4	NP_001336851.1
	RPL27	NM_001349921.2		c.-2-1G>A		splice_acceptor intron	N/A	NP_001336850.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RPL27	ENST00000589913.6	TSL:1	c.-3G>A		5_prime_UTR	Exon 1 of 4	ENSP00000464813.1
	RPL27	ENST00000253788.12	TSL:1 MANE Select	c.-2-1G>A		splice_acceptor intron	N/A	ENSP00000253788.5
	RPL27	ENST00000590864.2	TSL:2	n.-3G>A		non_coding_transcript_exon	Exon 1 of 5	ENSP00000467939.2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 33

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Diamond-Blackfan anemia 16 Pathogenic:1

Mar 28, 2017

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.34
CADD	Pathogenic	34
DANN	Uncertain	0.99
PhyloP100		7.9
PromoterAI		0.042	Neutral
Mutation Taster		=67/233	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Pathogenic	1.0
dbscSNV1_RF	Pathogenic	0.92
SpliceAI score (max)		0.99		Details are displayed if max score is > 0.2
DS_AL_spliceai		0.99		Position offset: 1

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

Other links and lift over

dbSNP: rs1085307119; hg19: chr17-41150765;