Genetic Variant NM_001379286.1:c.3061C>T (chr16-49636115-G-A) – ACMG Classification: Benign (-18 pts)

Variant summary

Our verdict is Benign. The variant received -18 ACMG points: 0P and 18B. BP4_ModerateBP6_Very_StrongBS1BS2

The NM_001379286.1(ZNF423):c.3061C>T(p.Leu1021Leu) variant causes a synonymous change. The variant allele was found at a frequency of 0.000939 in 1,613,940 control chromosomes in the GnomAD database, including 14 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0054 ( 9 hom., cov: 33)

Exomes 𝑓: 0.00048 ( 5 hom. )

Consequence

ZNF423
NM_001379286.1 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 5.66

Publications

2 publications found

Variant links:

Genes affected

ZNF423 (HGNC:16762): (zinc finger protein 423) The protein encoded by this gene is a nuclear protein that belongs to the family of Kruppel-like C2H2 zinc finger proteins. It functions as a DNA-binding transcription factor by using distinct zinc fingers in different signaling pathways. Thus, it is thought that this gene may have multiple roles in signal transduction during development. Mutations in this gene are associated with nephronophthisis-14 and Joubert syndrome-19. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2012]

ZNF423 Gene-Disease associations (from GenCC):

nephronophthisis 14
Inheritance: AD, Unknown, AR Classification: STRONG, LIMITED Submitted by: Ambry Genetics, Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae)
Joubert syndrome with oculorenal defect
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
nephronophthisis 2
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
nephronophthisis
Inheritance: AR Classification: LIMITED Submitted by: ClinGen

ZNF423 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -18 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.44).

BP6

Variant 16-49636115-G-A is Benign according to our data. Variant chr16-49636115-G-A is described in ClinVar as Benign. ClinVar VariationId is 473060.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00535 (815/152320) while in subpopulation AFR AF = 0.019 (788/41580). AF 95% confidence interval is 0.0179. There are 9 homozygotes in GnomAd4. There are 418 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 9 AD,Unknown,AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001379286.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
ZNF423	NM_001379286.1	MANE Select	c.3061C>T	p.Leu1021Leu	synonymous	Exon 4 of 8	NP_001366215.1
ZNF423	NM_015069.5		c.3037C>T	p.Leu1013Leu	synonymous	Exon 4 of 8	NP_055884.2
ZNF423	NM_001271620.2		c.2857C>T	p.Leu953Leu	synonymous	Exon 4 of 8	NP_001258549.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
ZNF423	ENST00000563137.7	TSL:5 MANE Select	c.3061C>T	p.Leu1021Leu	synonymous	Exon 4 of 8	ENSP00000455588.3
ZNF423	ENST00000562520.1	TSL:1	c.2857C>T	p.Leu953Leu	synonymous	Exon 4 of 8	ENSP00000457664.1
ZNF423	ENST00000567169.5	TSL:1	c.2686C>T	p.Leu896Leu	synonymous	Exon 2 of 6	ENSP00000455061.1

Frequencies

GnomAD3 genomes

AF:

0.00535

AC:

815

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0190

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00105

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00382

GnomAD2 exomes

AF:

0.00124

AC:

310

AN:

250232

AF XY:

0.000960

show subpopulations

Gnomad AFR exome

AF:

0.0170

Gnomad AMR exome

AF:

0.000782

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.000653

GnomAD4 exome

AF:

0.000480

AC:

701

AN:

1461620

Hom.:

Cov.:

AF XY:

0.000419

AC XY:

305

AN XY:

727076

show subpopulations

African (AFR)

AF:

0.0178

AC:

596

AN:

33480

American (AMR)

AF:

0.000805

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53164

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000809

AC:

AN:

1112000

Other (OTH)

AF:

0.000960

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.478

Heterozygous variant carriers

143

191

239

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00535

AC:

815

AN:

152320

Hom.:

Cov.:

AF XY:

0.00561

AC XY:

418

AN XY:

74476

show subpopulations

African (AFR)

AF:

0.0190

AC:

788

AN:

41580

American (AMR)

AF:

0.00105

AC:

AN:

15302

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5160

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68036

Other (OTH)

AF:

0.00378

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

115

154

192

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00248

Hom.:

Bravo

AF:

0.00624

Asia WGS

AF:

0.00173

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Nephronophthisis 14

Benign:1

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

not provided

Benign:1

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.44

CADD

Benign

8.0

(source)

DANN

Benign

0.73

PhyloP100

5.7

Mutation Taster

=99/1

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over