Variant 22-40861075-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_145174.2(DNAJB7):c.920G>A(p.Arg307Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000139 in 1,434,058 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

DNAJB7
NM_145174.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.462

Variant links:

Genes affected

DNAJB7 (HGNC:24986): (DnaJ heat shock protein family (Hsp40) member B7) The protein encoded by this intronless gene belongs to the evolutionarily conserved DNAJ/HSP40 family of proteins, which regulate molecular chaperone activity by stimulating ATPase activity. DNAJ proteins may have up to 3 distinct domains: a conserved 70-amino acid J domain, usually at the N terminus; a glycine/phenylalanine (G/F)-rich region; and a cysteine-rich domain containing 4 motifs resembling a zinc finger domain.[provided by RefSeq, Mar 2011]

DNAJB7 links:

XPNPEP3 (HGNC:28052): (X-prolyl aminopeptidase 3) The protein encoded by this gene belongs to the family of X-pro-aminopeptidases that utilize a metal cofactor, and remove the N-terminal amino acid from peptides with a proline residue in the penultimate position. This protein has been shown to localize to the mitochondria of renal cells, and have a role in ciliary function. Mutations in this gene are associated with nephronophthisis-like nephropathy-1. Alternatively spliced transcript variants encoding different isoforms have been noted for this gene, however, expression of some of these isoforms in vivo is not known.[provided by RefSeq, Mar 2011]

XPNPEP3 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.099532634).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
DNAJB7	NM_145174.2 linkuse as main transcript	c.920G>A	p.Arg307Lys	missense_variant	1/1	ENST00000307221.5	NP_660157.1
XPNPEP3	NM_022098.4 linkuse as main transcript	c.64+3830C>T		intron_variant		ENST00000357137.9	NP_071381.1
XPNPEP3	NM_001204827.2 linkuse as main transcript	c.*12+282C>T		intron_variant			NP_001191756.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DNAJB7	ENST00000307221.5 linkuse as main transcript	c.920G>A	p.Arg307Lys	missense_variant	1/1		NM_145174.2	ENSP00000307197	P1
XPNPEP3	ENST00000357137.9 linkuse as main transcript	c.64+3830C>T		intron_variant		1	NM_022098.4	ENSP00000349658	P1	Q9NQH7-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000438

AC:

AN:

228448

Hom.:

AF XY:

0.00000810

AC XY:

AN XY:

123458

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000346

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000139

AC:

AN:

1434058

Hom.:

Cov.:

AF XY:

0.00000281

AC XY:

AN XY:

711796

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000261

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000123

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 03, 2022

The c.920G>A (p.R307K) alteration is located in exon 1 (coding exon 1) of the DNAJB7 gene. This alteration results from a G to A substitution at nucleotide position 920, causing the arginine (R) at amino acid position 307 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.090

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.52

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.019

Eigen

Benign

-0.34

Eigen_PC

Benign

-0.26

FATHMM_MKL

Benign

0.64

LIST_S2

Benign

0.34

M_CAP

Benign

0.019

MetaRNN

Benign

0.10

MetaSVM

Benign

-0.96

MutationAssessor

Benign

1.2

MutationTaster

Benign

1.0

D;D;D;N

PrimateAI

Benign

0.47

PROVEAN

Benign

-0.22

REVEL

Benign

0.13

Sift

Benign

0.030

Sift4G

Benign

0.87

Polyphen

0.053

Vest4

0.083

MutPred

0.11

Gain of methylation at R307 (P = 0.0062);

MVP

0.84

MPC

0.031

ClinPred

0.15

GERP RS

3.7

Varity_R

0.15

gMVP

0.066

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over