Genetic Variant CDAN1:p.Thr1222Thr (chr15-42724509-A-G) – ACMG Classification: Benign (-17 pts)

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS1

The NM_138477.4(CDAN1):c.3666T>C(p.Thr1222Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00061 in 1,575,848 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0034 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00031 ( 1 hom. )

Consequence

CDAN1
NM_138477.4 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.255

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 links:

ENSG00000278769 (HGNC:):

ENSG00000278769 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -17 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.74).

BP6

Variant 15-42724509-A-G is Benign according to our data. Variant chr15-42724509-A-G is described in ClinVar as [Benign]. Clinvar id is 784317.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-0.255 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00339 (516/152382) while in subpopulation AFR AF= 0.0119 (494/41602). AF 95% confidence interval is 0.011. There are 1 homozygotes in gnomad4. There are 237 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CDAN1	NM_138477.4 link	c.3666T>C	p.Thr1222Thr	synonymous_variant	Exon 28 of 28	ENST00000356231.4	NP_612486.2	Q8IWY9-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CDAN1	ENST00000356231.4 link	c.3666T>C	p.Thr1222Thr	synonymous_variant	Exon 28 of 28	1	NM_138477.4	ENSP00000348564.3		Q8IWY9-2

Frequencies

GnomAD3 genomes

AF:

0.00339

AC:

516

AN:

152264

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0119

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00118

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:

0.0000294

Gnomad OTH

AF:

0.000955

GnomAD3 exomes

AF:

0.000683

AC:

131

AN:

191772

Hom.:

AF XY:

0.000450

AC XY:

AN XY:

102130

show subpopulations

Gnomad AFR exome

AF:

0.0104

Gnomad AMR exome

AF:

0.000278

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000250

Gnomad OTH exome

AF:

0.000202

GnomAD4 exome

AF:

0.000313

AC:

446

AN:

1423466

Hom.:

Cov.:

AF XY:

0.000256

AC XY:

180

AN XY:

704334

show subpopulations

Gnomad4 AFR exome

AF:

0.0113

Gnomad4 AMR exome

AF:

0.000328

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000641

Gnomad4 OTH exome

AF:

0.000951

GnomAD4 genome

AF:

0.00339

AC:

516

AN:

152382

Hom.:

Cov.:

AF XY:

0.00318

AC XY:

237

AN XY:

74520

show subpopulations

Gnomad4 AFR

AF:

0.0119

Gnomad4 AMR

AF:

0.00118

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.000945

Alfa

AF:

0.00129

Hom.:

Bravo

AF:

0.00386

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:1

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Anemia, congenital dyserythropoietic, type 1a

Benign:1

Oct 02, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.74

CADD

Benign

DANN

Benign

0.47

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over