Genetic Variant CDAN1:p.Pro1130Arg (chr15-42725550-G-C) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PM5PP3_Moderate

The NM_138477.4(CDAN1):c.3389C>G(p.Pro1130Arg) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P1130L) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CDAN1
NM_138477.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.58

Publications

11 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: Labcorp Genetics (formerly Invitae), Ambry Genetics
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:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr15-42725550-G-A is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 3177.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.904

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

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CDAN1	NM_138477.4	MANE Select	c.3389C>G	p.Pro1130Arg	missense	Exon 26 of 28	NP_612486.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
CDAN1	ENST00000356231.4	TSL:1 MANE Select	c.3389C>G	p.Pro1130Arg	missense	Exon 26 of 28	ENSP00000348564.3
CDAN1	ENST00000562465.5	TSL:1	n.*291C>G		non_coding_transcript_exon	Exon 13 of 15	ENSP00000454246.1
CDAN1	ENST00000562465.5	TSL:1	n.*291C>G		3_prime_UTR	Exon 13 of 15	ENSP00000454246.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461886

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727246

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1112012

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.62

BayesDel_addAF

Pathogenic

0.38

BayesDel_noAF

Pathogenic

0.32

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.73

Eigen

Uncertain

0.65

Eigen_PC

Uncertain

0.57

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.78

M_CAP

Uncertain

0.19

MetaRNN

Pathogenic

0.90

MetaSVM

Pathogenic

0.91

MutationAssessor

Uncertain

2.4

PhyloP100

6.6

PrimateAI

Uncertain

0.76

PROVEAN

Pathogenic

-4.7

REVEL

Pathogenic

0.79

Sift

Uncertain

0.014

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.82

MutPred

0.68

Gain of sheet (P = 0.0149)

MVP

0.70

MPC

0.47

ClinPred

1.0

GERP RS

5.7

Varity_R

0.59

gMVP

0.62

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over