Genetic Variant NM_198535.3:c.1636C>G (chr19-9295768-G-C) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_198535.3(ZNF699):c.1636C>G(p.Leu546Val) 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 1,461,802 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ZNF699
NM_198535.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.56

Publications

0 publications found

Variant links:

Genes affected

ZNF699 (HGNC:24750): (zinc finger protein 699) Predicted to enable DNA-binding transcription factor activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Predicted to be involved in regulation of transcription by RNA polymerase II. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

ZNF699 Gene-Disease associations (from GenCC):

DEGCAGS syndrome
Inheritance: AR Classification: STRONG, MODERATE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics

ZNF699 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.4219802).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ZNF699	NM_198535.3 link	c.1636C>G	p.Leu546Val	missense_variant	Exon 6 of 6	ENST00000591998.6	NP_940937.1	Q32M78

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ZNF699	ENST00000591998.6 link	c.1636C>G	p.Leu546Val	missense_variant	Exon 6 of 6	5	NM_198535.3	ENSP00000467723.1		Q32M78
ZNF699	ENST00000308650.4 link	c.1636C>G	p.Leu546Val	missense_variant	Exon 5 of 5	1		ENSP00000311596.3		Q32M78

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461802

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727204

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:

33480

American (AMR)

AF:

0.00

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86246

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53410

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111954

Other (OTH)

AF:

0.0000166

AC:

AN:

60394

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.325

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

May 23, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1636C>G (p.L546V) alteration is located in exon 5 (coding exon 5) of the ZNF699 gene. This alteration results from a C to G substitution at nucleotide position 1636, causing the leucine (L) at amino acid position 546 to be replaced by a valine (V). 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

Uncertain

0.38

BayesDel_addAF

Benign

-0.030

BayesDel_noAF

Benign

-0.28

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.18

T;T

Eigen

Uncertain

0.42

Eigen_PC

Uncertain

0.28

FATHMM_MKL

Benign

0.45

LIST_S2

Benign

0.70

.;T

M_CAP

Benign

0.017

MetaRNN

Benign

0.42

T;T

MetaSVM

Benign

-0.75

MutationAssessor

Uncertain

2.4

M;M

PhyloP100

1.6

PrimateAI

Uncertain

0.61

PROVEAN

Uncertain

-2.4

.;N

REVEL

Uncertain

0.31

Sift

Uncertain

0.0040

.;D

Sift4G

Uncertain

0.036

D;D

Polyphen

1.0

D;D

Vest4

0.19

MutPred

0.73

Loss of stability (P = 0.0661);Loss of stability (P = 0.0661);

MVP

0.76

MPC

0.38

ClinPred

0.93

GERP RS

3.4

Varity_R

0.32

gMVP

0.065

Mutation Taster

=92/8

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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NM_198535.3:c.1636C>G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over