Genetic Variant NM_138477.4:c.3683A>G (chr15-42724492-T-C) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PM4

The NM_138477.4(CDAN1):c.3683A>G(p.Ter1228Trpext*?) variant causes a stop lost change. The variant allele was found at a frequency of 0.0000019 in 1,577,208 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

CDAN1
NM_138477.4 stop_lost

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 4.40

Publications

0 publications found

Variant links:

Genes affected

CDAN1 (HGNC:1713): (codanin 1) This gene encodes a protein that appears to play a role in nuclear envelope integrity, possibly related to microtubule attachments. Mutations in this gene cause congenital dyserythropoietic anemia type I, a disease resulting in morphological and functional abnormalities of erythropoiesis. [provided by RefSeq, Jul 2009]

CDAN1 Gene-Disease associations (from GenCC):

anemia, congenital dyserythropoietic, type 1a
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, ClinGen, Labcorp Genetics (formerly Invitae)
congenital dyserythropoietic anemia type 1
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
congenital dyserythropoietic anemia
Inheritance: AR Classification: LIMITED Submitted by: Genomics England PanelApp

CDAN1 links:

ENSG00000278769 (HGNC:):

ENSG00000278769 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PM4

Stoplost variant in NM_138477.4 Downstream stopcodon found after 47 codons.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_138477.4. 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
	CDAN1	NM_138477.4	MANE Select	c.3683A>G	p.Ter1228Trpext*?	stop_lost	Exon 28 of 28	NP_612486.2	Q8IWY9-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CDAN1	ENST00000356231.4	TSL:1 MANE Select	c.3683A>G	p.Ter1228Trpext*?	stop_lost	Exon 28 of 28	ENSP00000348564.3	Q8IWY9-2
CDAN1	ENST00000562465.5	TSL:1	n.*585A>G		non_coding_transcript_exon	Exon 15 of 15	ENSP00000454246.1	H3BM60
CDAN1	ENST00000562465.5	TSL:1	n.*585A>G		3_prime_UTR	Exon 15 of 15	ENSP00000454246.1	H3BM60

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152268

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000515

AC:

AN:

194148

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000345

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:

0.00000140

AC:

AN:

1424940

Hom.:

Cov.:

AF XY:

0.00000142

AC XY:

AN XY:

705236

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32722

American (AMR)

AF:

0.0000250

AC:

AN:

39956

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25400

East Asian (EAS)

AF:

0.00

AC:

AN:

37870

South Asian (SAS)

AF:

0.00

AC:

AN:

81264

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50902

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5616

European-Non Finnish (NFE)

AF:

9.16e-7

AC:

AN:

1092272

Other (OTH)

AF:

0.00

AC:

AN:

58938

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

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

AF:

0.00000657

AC:

AN:

152268

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74398

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41474

American (AMR)

AF:

0.00

AC:

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5202

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68048

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000189

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Anemia, congenital dyserythropoietic, type 1a (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Uncertain

0.10

BayesDel_noAF

Uncertain

0.010

CADD

Benign

(source)

DANN

Benign

0.83

Eigen

Pathogenic

1.1

Eigen_PC

Pathogenic

0.91

FATHMM_MKL

Uncertain

0.87

PhyloP100

4.4

Vest4

0.0050

GERP RS

5.8

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

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