7-87878147-G-C

Position:

• chr7-87878147-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_006716.4(DBF4):​c.141G>C​(p.Trp47Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: DBF4 NM_006716.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.84

Genes affected

DBF4 (HGNC:17364): (DBF4-CDC7 kinase regulatory subunit) Predicted to enable protein serine/threonine kinase activator activity. Predicted to be involved in positive regulation of nuclear cell cycle DNA replication and regulation of cell cycle phase transition. Located in nuclear body. [provided by Alliance of Genome Resources, Apr 2022]

DBF4 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.28736353).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DBF4	NM_006716.4	c.141G>C	p.Trp47Cys	missense_variant	2/12	ENST00000265728.6	NP_006707.1
DBF4	NM_001318060.2	c.-452G>C		5_prime_UTR_variant	2/11		NP_001304989.1
DBF4	NM_001318062.2	c.-579G>C		5_prime_UTR_variant	2/12		NP_001304991.1
DBF4	NM_001318061.2	c.-454+14G>C		intron_variant			NP_001304990.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DBF4	ENST00000265728.6	c.141G>C	p.Trp47Cys	missense_variant	2/12	1	NM_006716.4	ENSP00000265728.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 06, 2022

The c.141G>C (p.W47C) alteration is located in exon 2 (coding exon 2) of the DBF4 gene. This alteration results from a G to C substitution at nucleotide position 141, causing the tryptophan (W) at amino acid position 47 to be replaced by a cysteine (C). 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	0.31
BayesDel_addAF	Benign	-0.10	T
BayesDel_noAF	Benign	-0.39
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.023	T
Eigen	Uncertain	0.55
Eigen_PC	Uncertain	0.55
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Benign	0.70	T
M_CAP	Benign	0.011	T
MetaRNN	Benign	0.29	T
MetaSVM	Benign	-0.91	T
MutationAssessor	Benign	1.8	L
PrimateAI	Benign	0.42	T
PROVEAN	Benign	-2.0	N
REVEL	Benign	0.12
Sift	Benign	0.060	T
Sift4G	Uncertain	0.043	D
Polyphen		1.0	D
Vest4		0.34
MutPred		0.31		Gain of disorder (P = 0.0113);
MVP		0.22
MPC		0.25
ClinPred		0.88	D
GERP RS		5.3
Varity_R		0.18
gMVP		0.53

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr7-87507462;