20-63895194-TGCCGCCGCCGCC-TGCCGCCGCCGCCGCCGCCGCCGCCGCC

Variant names:

• chr20-63895194-T-TGCCGCCGCCGCCGCC
• rs531246320
• NM_025219.3:c.-134_-120dupGCCGCCGCCGCCGCC

Variant summary

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

The NM_025219.3(DNAJC5):​c.-134_-120dupGCCGCCGCCGCCGCC variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000268 in 149,082 control chromosomes in the GnomAD database, with no homozygous occurrence. It is difficult to determine the true allele frequency of this variant because it is of type INS_BIG, and the frequency of such variant types in population databases may be underestimated and unreliable. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.000027 (0 hom., cov: 31)
• Consequence: DNAJC5 NM_025219.3 5_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.75
• Publications: 1 publications found

Genes affected

DNAJC5 (HGNC:16235): (DnaJ heat shock protein family (Hsp40) member C5) This gene is a member of the J protein family. J proteins function in many cellular processes by regulating the ATPase activity of 70 kDa heat shock proteins. The encoded protein plays a role in membrane trafficking and protein folding, and has been shown to have anti-neurodegenerative properties. The encoded protein is known to play a role in cystic fibrosis and Huntington's disease. A pseudogene of this gene is located on the short arm of chromosome 8. [provided by RefSeq, Nov 2010]

DNAJC5 Gene-Disease associations (from GenCC):

• ceroid lipofuscinosis, neuronal, 4 (Kufs type)

  Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
• adult neuronal ceroid lipofuscinosis

  Inheritance: AD Classification: MODERATE Submitted by: ClinGen

ENSG00000290226 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_025219.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNAJC5	NM_025219.3	MANE Select	c.-134_-120dupGCCGCCGCCGCCGCC		5_prime_UTR	Exon 1 of 5	NP_079495.1	Q9H3Z4-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNAJC5	ENST00000360864.9	TSL:1 MANE Select	c.-134_-120dupGCCGCCGCCGCCGCC		5_prime_UTR	Exon 1 of 5	ENSP00000354111.4	Q9H3Z4-1
	DNAJC5	ENST00000898575.1		c.-129_-115dupGCCGCCGCCGCCGCC		5_prime_UTR	Exon 1 of 5	ENSP00000568634.1
	DNAJC5	ENST00000921989.1		c.-46_-32dupGCCGCCGCCGCCGCC		5_prime_UTR	Exon 1 of 5	ENSP00000592048.1

Frequencies

GnomAD3 genomes AF: 0.0000268 AC: 4 AN: 149082 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.00

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: 0.0000599

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 0

GnomAD4 genome AF: 0.0000268 AC: 4 AN: 149082 Hom.: 0 Cov.: 31 AF XY: 0.0000275 AC XY: 2 AN XY: 72632

African (AFR) AF: 0.00 AC: 0 AN: 41042

American (AMR) AF: 0.00 AC: 0 AN: 15016

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3412

East Asian (EAS) AF: 0.00 AC: 0 AN: 5132

South Asian (SAS) AF: 0.00 AC: 0 AN: 4806

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 9594

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 314

European-Non Finnish (NFE) AF: 0.0000599 AC: 4 AN: 66802

Other (OTH) AF: 0.00 AC: 0 AN: 2060

Alfa AF: 0.00 Hom.: 12

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		2.7

Splicing

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

Other links and lift over

dbSNP: rs531246320; hg19: chr20-62526547;