Genetic Variant ZNF407:p.Leu643Val (chr18-74632946-T-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_017757.3(ZNF407):c.1927T>G(p.Leu643Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,002 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. L643L) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ZNF407
NM_017757.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.212

Publications

1 publications found

Variant links:

Genes affected

ZNF407 (HGNC:19904): (zinc finger protein 407) This gene encodes a zinc finger protein whose exact function is not known. It may be involved in transcriptional regulation. Several alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]

ZNF407 Gene-Disease associations (from GenCC):

short stature, impaired intellectual development, microcephaly, hypotonia, and ocular anomalies
Inheritance: AR Classification: STRONG, LIMITED Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
intellectual disability
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
neurodevelopmental disorder
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
complex neurodevelopmental disorder
Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

ZNF407 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.038900197).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ZNF407	NM_017757.3 link	c.1927T>G	p.Leu643Val	missense_variant	Exon 2 of 9	ENST00000299687.10	NP_060227.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein
ZNF407	ENST00000299687.10 link	c.1927T>G	p.Leu643Val	missense_variant	Exon 2 of 9	1	NM_017757.3	ENSP00000299687.4
ZNF407	ENST00000577538.5 link	c.1927T>G	p.Leu643Val	missense_variant	Exon 1 of 7	2		ENSP00000463270.1
ZNF407	ENST00000309902.10 link	c.1927T>G	p.Leu643Val	missense_variant	Exon 1 of 4	2		ENSP00000310359.5
ZNF407	ENST00000582337.5 link	c.1927T>G	p.Leu643Val	missense_variant	Exon 2 of 5	5		ENSP00000462348.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000403

AC:

AN:

248376

AF XY:

0.00000742

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000100

Gnomad EAS 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:

6.84e-7

AC:

AN:

1461002

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726846

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33376

American (AMR)

AF:

0.00

AC:

AN:

44560

Ashkenazi Jewish (ASJ)

AF:

0.0000384

AC:

AN:

26074

East Asian (EAS)

AF:

0.00

AC:

AN:

39686

South Asian (SAS)

AF:

0.00

AC:

AN:

86230

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53322

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5756

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111668

Other (OTH)

AF:

0.00

AC:

AN:

60330

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.066

BayesDel_addAF

Benign

-0.37

BayesDel_noAF

Benign

-0.77

CADD

Benign

9.7

(source)

DANN

Benign

0.95

DEOGEN2

Benign

0.0

.;.;.;T

Eigen

Benign

-0.78

Eigen_PC

Benign

-0.78

FATHMM_MKL

Benign

0.11

LIST_S2

Benign

0.0

.;T;T;T

M_CAP

Benign

0.0055

MetaRNN

Benign

0.039

T;T;T;T

MetaSVM

Benign

-0.98

MutationAssessor

Benign

1.8

L;L;L;L

PhyloP100

0.21

PrimateAI

Benign

0.24

PROVEAN

Benign

0.0

.;N;.;N

REVEL

Benign

0.0

Sift

Pathogenic

0.0

.;T;.;T

Sift4G

Benign

0.14

T;T;T;T

Vest4

0.030

ClinPred

0.050

GERP RS

0.56

Varity_R

0.051

gMVP

0.13

Mutation Taster

=96/4

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over