Genetic Variant C21orf58:p.His298_His299dup (chr21-46302071-A-ATGGTGG) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP3BS2

The NM_058180.5(C21orf58):c.891_896dupCCACCA(p.His298_His299dup) variant causes a disruptive inframe insertion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00113 in 1,506,798 control chromosomes in the GnomAD database, including 3 homozygotes. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.00079 ( 0 hom., cov: 0)

Exomes 𝑓: 0.0012 ( 3 hom. )

Consequence

C21orf58
NM_058180.5 disruptive_inframe_insertion

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.565

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: Likely_benign. The variant received -5 ACMG points.

BP3

Nonframeshift variant in repetitive region in NM_058180.5

BS2

High Homozygotes in GnomAdExome4 at 3 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
C21orf58	NM_058180.5 link	c.891_896dupCCACCA	p.His298_His299dup	disruptive_inframe_insertion	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_896dupCCACCA	p.His298_His299dup	disruptive_inframe_insertion	Exon 8 of 8	2	NM_058180.5	ENSP00000291691.8		P58505-1

Frequencies

GnomAD3 genomes

AF:

0.000793

AC:

120

AN:

151408

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000267

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000329

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000417

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00149

Gnomad OTH

AF:

0.000483

GnomAD2 exomes

AF:

0.000609

AC:

AN:

111606

AF XY:

0.000677

show subpopulations

Gnomad AFR exome

AF:

0.000177

Gnomad AMR exome

AF:

0.000973

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000942

Gnomad OTH exome

AF:

0.000300

GnomAD4 exome

AF:

0.00117

AC:

1582

AN:

1355274

Hom.:

Cov.:

AF XY:

0.00117

AC XY:

778

AN XY:

667402

show subpopulations

African (AFR)

AF:

0.000293

AC:

AN:

30746

American (AMR)

AF:

0.00111

AC:

AN:

32380

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24368

East Asian (EAS)

AF:

0.0000585

AC:

AN:

34164

South Asian (SAS)

AF:

0.000461

AC:

AN:

75954

European-Finnish (FIN)

AF:

0.000142

AC:

AN:

42170

Middle Eastern (MID)

AF:

0.000182

AC:

AN:

5500

European-Non Finnish (NFE)

AF:

0.00138

AC:

1450

AN:

1053702

Other (OTH)

AF:

0.000764

AC:

AN:

56290

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.459

Heterozygous variant carriers

164

247

329

411

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.000792

AC:

120

AN:

151524

Hom.:

Cov.:

AF XY:

0.000730

AC XY:

AN XY:

74004

show subpopulations

African (AFR)

AF:

0.000266

AC:

AN:

41388

American (AMR)

AF:

0.000328

AC:

AN:

15224

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3464

East Asian (EAS)

AF:

0.00

AC:

AN:

5104

South Asian (SAS)

AF:

0.000418

AC:

AN:

4790

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10506

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00149

AC:

101

AN:

67752

Other (OTH)

AF:

0.000478

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.487

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000364

Hom.:

491

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

-0.56

Mutation Taster

=84/16

polymorphism

(source)

Splicing

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

Publications

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21-46302071-A-ATGGTGG

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