Genetic Variant ZG16B:c.-24C>G (chr16-2830418-C-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_145252.3(ZG16B):c.-24C>G variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000312 in 1,603,954 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: 𝑓 0.000026 ( 0 hom., cov: 34)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

ZG16B
NM_145252.3 5_prime_UTR

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.114

Variant links:

Genes affected

ZG16B (HGNC:30456): (zymogen granule protein 16B) Predicted to enable carbohydrate binding activity. Involved in retina homeostasis. Located in extracellular exosome. [provided by Alliance of Genome Resources, Apr 2022]

ZG16B links:

Genome browser will be placed here

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=0.07412535).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ZG16B	NM_145252.3 link	c.-24C>G		5_prime_UTR_variant	Exon 2 of 4	ENST00000382280.8	NP_660295.3	Q96DA0G8H6I3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ZG16B	ENST00000382280 link	c.-24C>G		5_prime_UTR_variant	Exon 2 of 4	1	NM_145252.3	ENSP00000371715.4		Q96DA0

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152172

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000878

AC:

AN:

227844

Hom.:

AF XY:

0.00000806

AC XY:

AN XY:

124142

show subpopulations

Gnomad AFR exome

AF:

0.000146

Gnomad AMR exome

AF:

0.00

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:

6.89e-7

AC:

AN:

1451782

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

721566

show subpopulations

Gnomad4 AFR exome

AF:

0.0000301

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152172

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74322

show subpopulations

Gnomad4 AFR

AF:

0.0000965

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 10, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.85C>G (p.P29A) alteration is located in exon 2 (coding exon 2) of the ZG16B gene. This alteration results from a C to G substitution at nucleotide position 85, causing the proline (P) at amino acid position 29 to be replaced by an alanine (A). 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

0.069

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.47

CADD

Benign

6.3

DANN

Uncertain

0.99

DEOGEN2

Benign

0.0027

Eigen

Benign

-0.54

Eigen_PC

Benign

-0.73

FATHMM_MKL

Benign

0.10

M_CAP

Benign

0.0067

MetaRNN

Benign

0.074

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.81

PrimateAI

Benign

0.29

PROVEAN

Benign

0.060

REVEL

Benign

0.066

Sift

Benign

0.22

Sift4G

Benign

0.35

Polyphen

0.94

Vest4

0.093

MutPred

0.11

Loss of relative solvent accessibility (P = 0.0071);

MVP

0.088

MPC

0.045

ClinPred

0.066

GERP RS

1.1

Varity_R

0.027

gMVP

0.098

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