5-34929851-GG-AA

Variant names:

• chr5-34929851-GG-AA
• NM_001012339.3:c.32_33delGGinsAA
• DNAJC21 p.Arg11Gln

Variant summary

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

The NM_001012339.3(DNAJC21):​c.32_33delGGinsAA​(p.Arg11Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. It is difficult to determine the true allele frequency of this variant because it is of type MNV, 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. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R11L) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 29)
• Consequence: DNAJC21 NM_001012339.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.12
• Publications: 0 publications found

Genes affected

DNAJC21 (HGNC:27030): (DnaJ heat shock protein family (Hsp40) member C21) This gene encodes a member of the DNAJ heat shock protein 40 family of proteins that is characterized by two N-terminal tetratricopeptide repeat domains and a C-terminal DNAJ domain. This protein binds the precursor 45S ribosomal RNA and may be involved in early nuclear ribosomal RNA biogenesis and maturation of the 60S ribosomal subunit. Mutations in this gene result in Bone marrow failure syndrome 3. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Feb 2017]

DNAJC21 Gene-Disease associations (from GenCC):

• bone marrow failure syndrome 3

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), Ambry Genetics
• Shwachman-Diamond syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

LOC124900961 (HGNC:):

ACMG classification

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

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001012339.3. 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
	DNAJC21	NM_001012339.3	MANE Select	c.32_33delGGinsAA	p.Arg11Gln	missense	N/A	NP_001012339.2	Q5F1R6-1
	DNAJC21	NM_194283.4		c.32_33delGGinsAA	p.Arg11Gln	missense	N/A	NP_919259.3	Q5F1R6-2
	DNAJC21	NM_001348420.2		c.32_33delGGinsAA	p.Arg11Gln	missense	N/A	NP_001335349.1	Q5F1R6-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNAJC21	ENST00000648817.1	MANE Select	c.32_33delGGinsAA	p.Arg11Gln	missense	N/A	ENSP00000497410.1	Q5F1R6-1
	DNAJC21	ENST00000966889.1		c.32_33delGGinsAA	p.Arg11Gln	missense	N/A	ENSP00000636948.1
	DNAJC21	ENST00000382021.2	TSL:2	c.32_33delGGinsAA	p.Arg11Gln	missense	N/A	ENSP00000371451.2	Q5F1R6-2

Frequencies

GnomAD3 genomes Cov.: 29

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 29

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		1.1

Splicing

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr5-34929956;