Genetic Variant C21orf58:p.His298_His299del (chr21-46302071-ATGGTGG-A) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP3

The NM_058180.5(C21orf58):c.891_896delCCACCA(p.His298_His299del) variant causes a disruptive inframe deletion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000173 in 1,506,606 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 0)

Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

C21orf58
NM_058180.5 disruptive_inframe_deletion

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.512

Publications

12 publications found

Variant links:

Genes affected

C21orf58 (HGNC:1300): (chromosome 21 open reading frame 58)

C21orf58 links:

YBEY (HGNC:1299): (ybeY metalloendoribonuclease) This gene encodes a highly conserved metalloprotein. A similar protein in bacteria acts as an endoribonuclease, and is thought to function in ribosomal RNA maturation and ribosome assembly. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2015]

YBEY links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP3

Nonframeshift variant in repetitive region in NM_058180.5

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
C21orf58	NM_058180.5 link	c.891_896delCCACCA	p.His298_His299del	disruptive_inframe_deletion	Exon 8 of 8	ENST00000291691.12	NP_478060.2	P58505-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
C21orf58	ENST00000291691.12 link	c.891_896delCCACCA	p.His298_His299del	disruptive_inframe_deletion	Exon 8 of 8	2	NM_058180.5	ENSP00000291691.8		P58505-1

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151408

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000148

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00

AC:

AN:

111606

AF XY:

0.00

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:

0.0000177

AC:

AN:

1355198

Hom.:

AF XY:

0.0000135

AC XY:

AN XY:

667352

show subpopulations

African (AFR)

AF:

0.0000651

AC:

AN:

30738

American (AMR)

AF:

0.00

AC:

AN:

32370

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24368

East Asian (EAS)

AF:

0.00

AC:

AN:

34150

South Asian (SAS)

AF:

0.0000263

AC:

AN:

75950

European-Finnish (FIN)

AF:

0.0000237

AC:

AN:

42156

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5500

European-Non Finnish (NFE)

AF:

0.0000171

AC:

AN:

1053682

Other (OTH)

AF:

0.0000178

AC:

AN:

56284

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.404

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151408

Hom.:

Cov.:

AF XY:

0.0000271

AC XY:

AN XY:

73878

show subpopulations

African (AFR)

AF:

0.0000242

AC:

AN:

41270

American (AMR)

AF:

0.00

AC:

AN:

15204

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3464

East Asian (EAS)

AF:

0.00

AC:

AN:

5116

South Asian (SAS)

AF:

0.00

AC:

AN:

4794

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10506

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000148

AC:

AN:

67760

Other (OTH)

AF:

0.00

AC:

AN:

2072

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.550

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

491

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

0.51

Mutation Taster

=146/54

polymorphism

(source)

Splicing

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

Publications

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21-46302071-ATGGTGG-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over