Genetic Variant NM_001030.6:c.116-3C>A (chr1-153991563-C-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001030.6(RPS27):c.116-3C>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000275 in 1,455,554 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

RPS27
NM_001030.6 splice_region, intron

Scores

Splicing: ADA: 0.1554

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.35

Publications

0 publications found

Variant links:

Genes affected

RPS27 (HGNC:10416): (ribosomal protein S27) 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 S27e family of ribosomal proteins and component of the 40S subunit. The encoded protein contains a C4-type zinc finger domain that can bind to zinc and may bind to nucleic acid. Mutations in this gene have been identified in numerous melanoma patients and in at least one patient with Diamond-Blackfan anemia (DBA). Elevated expression of this gene has been observed in various human cancers. As is typical for genes encoding ribosomal proteins, there are multiple processed pseudogenes of this gene dispersed through the genome. [provided by RefSeq, Jul 2018]

RPS27 Gene-Disease associations (from GenCC):

Diamond-Blackfan anemia 17
Inheritance: Unknown, AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia

RPS27 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.56).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001030.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
RPS27	NM_001030.6	MANE Select	c.116-3C>A	splice_region intron	N/A	NP_001021.1	P42677
RPS27	NM_001349946.2		c.20-3C>A	splice_region intron	N/A	NP_001336875.1
RPS27	NM_001349947.2		c.20-3C>A	splice_region intron	N/A	NP_001336876.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
RPS27	ENST00000651669.1	MANE Select	c.116-3C>A	splice_region intron	N/A	ENSP00000499044.1	P42677
RPS27	ENST00000936806.1		c.239-3C>A	splice_region intron	N/A	ENSP00000606865.1
RPS27	ENST00000936804.1		c.237-31C>A	intron	N/A	ENSP00000606863.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251242

AF XY:

0.00000736

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000275

AC:

AN:

1455554

Hom.:

Cov.:

AF XY:

0.00000276

AC XY:

AN XY:

724506

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33368

American (AMR)

AF:

0.00

AC:

AN:

44654

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26100

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39662

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86042

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53414

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5360

European-Non Finnish (NFE)

AF:

9.04e-7

AC:

AN:

1106792

Other (OTH)

AF:

0.00

AC:

AN:

60162

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.56

CADD

Benign

(source)

DANN

Benign

0.85

PhyloP100

1.3

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.16

dbscSNV1_RF

Benign

0.25

SpliceAI score (max)

0.33

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.33

Position offset: 3

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over