4-15527560-T-TGGCATGTTTTGGCAGCGA

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2PM4PP3PP5_Moderate

The NM_001378615.1(CC2D2A):​c.1263_1264insGGCATGTTTTGGCAGCGA​(p.Phe421_Ser422insGlyMetPheTrpGlnArg) variant causes a conservative inframe insertion change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (★).

Frequency

Genomes: not found (cov: 33)

Consequence

CC2D2A
NM_001378615.1 conservative_inframe_insertion

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 8.60
Variant links:
Genes affected
CC2D2A (HGNC:29253): (coiled-coil and C2 domain containing 2A) This gene encodes a coiled-coil and calcium binding domain protein that appears to play a critical role in cilia formation. Mutations in this gene cause Meckel syndrome type 6, as well as Joubert syndrome type 9. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2009]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM4
Nonframeshift variant in NON repetitive region in NM_001378615.1.
PP3
No computational evidence supports a deleterious effect, but strongly conserved according to phyloP
PP5
Variant 4-15527560-T-TGGCATGTTTTGGCAGCGA is Pathogenic according to our data. Variant chr4-15527560-T-TGGCATGTTTTGGCAGCGA is described in ClinVar as [Pathogenic]. Clinvar id is 217611.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CC2D2ANM_001378615.1 linkuse as main transcriptc.1263_1264insGGCATGTTTTGGCAGCGA p.Phe421_Ser422insGlyMetPheTrpGlnArg conservative_inframe_insertion 12/37 ENST00000424120.6 NP_001365544.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CC2D2AENST00000424120.6 linkuse as main transcriptc.1263_1264insGGCATGTTTTGGCAGCGA p.Phe421_Ser422insGlyMetPheTrpGlnArg conservative_inframe_insertion 12/375 NM_001378615.1 ENSP00000403465.1 Q9P2K1-4

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Cov.:
31
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Joubert syndrome 9 Pathogenic:1
Pathogenic, criteria provided, single submitterresearchUW Hindbrain Malformation Research Program, University of WashingtonFeb 23, 2015- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

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.

Other links and lift over

dbSNP: rs762998472; hg19: chr4-15529183; API