NM_138477.4:c.2352+8C>G

Variant names:

• chr15-42729788-G-C
• rs12594483
• NM_138477.4:c.2352+8C>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_138477.4(CDAN1):​c.2352+8C>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 31)
• Consequence: CDAN1 NM_138477.4 splice_region, intron
• Scores: Splicing: ADA: 0.00006289
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.299
• Publications: 25 publications found

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

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CDAN1	NM_138477.4	c.2352+8C>G		splice_region_variant, intron_variant	Intron 16 of 27	ENST00000356231.4	NP_612486.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CDAN1	ENST00000356231.4	c.2352+8C>G		splice_region_variant, intron_variant	Intron 16 of 27	1	NM_138477.4	ENSP00000348564.3
CDAN1	ENST00000562465.5	n.345+8C>G		splice_region_variant, intron_variant	Intron 3 of 14	1		ENSP00000454246.1
CDAN1	ENST00000643434.1	n.*1530+8C>G		splice_region_variant, intron_variant	Intron 14 of 24			ENSP00000494699.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 31

Alfa AF: 0.00 Hom.: 14743

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	0.62
DANN	Benign	0.54
PhyloP100		-0.30

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.000063
dbscSNV1_RF	Benign	0.0
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs12594483; hg19: chr15-43021986;