Genetic Variant NM_138477.4:c.386G>C (chr15-42736485-C-G) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_138477.4(CDAN1):c.386G>C(p.Arg129Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000772 in 1,295,712 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign 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. R129H) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 7.7e-7 ( 0 hom. )

Consequence

CDAN1
NM_138477.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.741

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: 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:

Genome browser will be placed here

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;

BP4

Computational evidence support a benign effect (MetaRNN=0.39364713).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CDAN1	NM_138477.4 link	c.386G>C	p.Arg129Pro	missense_variant	Exon 2 of 28	ENST00000356231.4	NP_612486.2	Q8IWY9-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CDAN1	ENST00000356231.4 link	c.386G>C	p.Arg129Pro	missense_variant	Exon 2 of 28	1	NM_138477.4	ENSP00000348564.3	Q8IWY9-2
CDAN1	ENST00000643434.1 link	n.91-404G>C		intron_variant	Intron 1 of 24			ENSP00000494699.1	A0A2R8Y5C2
CDAN1	ENST00000563260.1 link	c.*77G>C		downstream_gene_variant		3		ENSP00000455536.1	H3BPZ6

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

7.72e-7

AC:

AN:

1295712

Hom.:

Cov.:

AF XY:

0.00000157

AC XY:

AN XY:

636472

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

25926

American (AMR)

AF:

0.00

AC:

AN:

19834

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19634

East Asian (EAS)

AF:

0.00

AC:

AN:

30958

South Asian (SAS)

AF:

0.00

AC:

AN:

64736

European-Finnish (FIN)

AF:

0.00

AC:

AN:

37198

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4412

European-Non Finnish (NFE)

AF:

9.62e-7

AC:

AN:

1039698

Other (OTH)

AF:

0.00

AC:

AN:

53316

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Uncertain

0.049

BayesDel_noAF

Benign

-0.17

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.14

Eigen

Uncertain

0.48

Eigen_PC

Uncertain

0.45

FATHMM_MKL

Benign

0.52

LIST_S2

Benign

0.41

M_CAP

Pathogenic

0.84

MetaRNN

Benign

0.39

MetaSVM

Uncertain

-0.054

MutationAssessor

Benign

1.6

PhyloP100

0.74

PrimateAI

Pathogenic

0.93

PROVEAN

Benign

-0.19

REVEL

Uncertain

0.32

Sift

Benign

0.068

Sift4G

Benign

0.40

Polyphen

0.99

Vest4

0.26

MutPred

0.35

Loss of solvent accessibility (P = 0.0015);

MVP

0.34

MPC

2.3

ClinPred

0.92

GERP RS

4.2

Varity_R

0.25

gMVP

0.64

Mutation Taster

=78/22

polymorphism

(source)

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over