NM_016356.5:c.355C>T

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_016356.5(DCDC2):c.355C>T(p.Pro119Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000354 in 1,609,582 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P119L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

DCDC2
NM_016356.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 7.76

Publications

0 publications found

Variant links:

Genes affected

DCDC2 (HGNC:18141): (doublecortin domain containing 2) This gene encodes a doublecortin domain-containing family member. The doublecortin domain has been demonstrated to bind tubulin and enhance microtubule polymerization. This family member is thought to function in neuronal migration where it may affect the signaling of primary cilia. Mutations in this gene have been associated with reading disability (RD) type 2, also referred to as developmental dyslexia. Alternatively spliced transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Jan 2013]

DCDC2 Gene-Disease associations (from GenCC):

ciliopathy
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen, Ambry Genetics
isolated neonatal sclerosing cholangitis
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet
nephronophthisis 19
Inheritance: AR Classification: STRONG Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
hearing loss, autosomal recessive
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Senior-Boichis syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
nonsyndromic genetic hearing loss
Inheritance: AR Classification: LIMITED Submitted by: ClinGen
autosomal recessive nonsyndromic hearing loss 66
Inheritance: Unknown, AR Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Ambry Genetics

DCDC2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.816

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016356.5. 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
	DCDC2	NM_016356.5	MANE Select	c.355C>T	p.Pro119Ser	missense	Exon 3 of 10	NP_057440.2
	DCDC2	NM_001195610.2		c.355C>T	p.Pro119Ser	missense	Exon 4 of 11	NP_001182539.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DCDC2	ENST00000378454.8	TSL:1 MANE Select	c.355C>T	p.Pro119Ser	missense	Exon 3 of 10	ENSP00000367715.3
	DCDC2	ENST00000883243.1		c.355C>T	p.Pro119Ser	missense	Exon 4 of 11	ENSP00000553302.1

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

151996

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000484

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:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000162

AC:

AN:

247328

AF XY:

0.0000299

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000355

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000336

AC:

AN:

1457586

Hom.:

Cov.:

AF XY:

0.0000414

AC XY:

AN XY:

725138

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33050

American (AMR)

AF:

0.00

AC:

AN:

43298

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25942

East Asian (EAS)

AF:

0.00

AC:

AN:

39658

South Asian (SAS)

AF:

0.00

AC:

AN:

85746

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53378

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5728

European-Non Finnish (NFE)

AF:

0.0000432

AC:

AN:

1110656

Other (OTH)

AF:

0.0000166

AC:

AN:

60130

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.448

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:

0.0000526

AC:

AN:

151996

Hom.:

Cov.:

AF XY:

0.0000808

AC XY:

AN XY:

74238

show subpopulations

African (AFR)

AF:

0.0000484

AC:

AN:

41352

American (AMR)

AF:

0.00

AC:

AN:

15260

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10570

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000882

AC:

AN:

68010

Other (OTH)

AF:

0.00

AC:

AN:

2084

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.481

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.0000580

Hom.:

Bravo

AF:

0.0000340

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Autosomal recessive nonsyndromic hearing loss 66;C4015542:Nephronophthisis 19;C4479344:Isolated neonatal sclerosing cholangitis (1)

Autosomal recessive nonsyndromic hearing loss 66;C4479344:Isolated neonatal sclerosing cholangitis (1)

Inborn genetic diseases (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.81

BayesDel_addAF

Benign

-0.0064

BayesDel_noAF

Benign

-0.12

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.45

Eigen

Pathogenic

0.82

Eigen_PC

Pathogenic

0.84

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.84

M_CAP

Benign

0.029

MetaRNN

Pathogenic

0.82

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.3

PhyloP100

7.8

PrimateAI

Uncertain

0.61

PROVEAN

Pathogenic

-5.1

REVEL

Uncertain

0.37

Sift

Uncertain

0.021

Sift4G

Uncertain

0.038

Polyphen

1.0

Vest4

0.80

MVP

0.65

MPC

0.54

ClinPred

0.96

GERP RS

6.1

Varity_R

0.28

gMVP

0.71

Mutation Taster

=46/54

disease causing

(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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over