13-99965516-G-C

Variant names:

• chr13-99965516-G-C
• NM_033132.5:c.1781C>G

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_033132.5(ZIC5):​c.1781C>G​(p.Thr594Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: ZIC5 NM_033132.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 9.33
• Publications: 0 publications found

Genes affected

ZIC5 (HGNC:20322): (Zic family member 5) This gene encodes a member of the ZIC family of C2H2-type zinc finger proteins. The encoded protein may act as a transcriptional repressor. Studies in mouse and Xenopus support a role for this gene in neural crest development. Elevated expression of this gene has been observed in various human cancers and may contribute to cancer progression. This gene is closely linked to a related family member on chromosome 13. [provided by RefSeq, Mar 2017]

ACMG classification

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=0.32181463).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ZIC5	NM_033132.5	c.1781C>G	p.Thr594Ser	missense_variant	Exon 2 of 2	ENST00000267294.5	NP_149123.3
ZIC5	NR_146224.1	n.2248C>G		non_coding_transcript_exon_variant	Exon 3 of 3
ZIC5	NR_146225.2	n.517C>G		non_coding_transcript_exon_variant	Exon 2 of 2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ZIC5	ENST00000267294.5	c.1781C>G	p.Thr594Ser	missense_variant	Exon 2 of 2	1	NM_033132.5	ENSP00000267294.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Apr 08, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1853C>G (p.T618S) alteration is located in exon 2 (coding exon 2) of the ZIC5 gene. This alteration results from a C to G substitution at nucleotide position 1853, causing the threonine (T) at amino acid position 618 to be replaced by a serine (S). 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	0.25
BayesDel_addAF	Uncertain	0.040	T
BayesDel_noAF	Benign	-0.18
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Benign	0.22	T
Eigen	Pathogenic	0.70
Eigen_PC	Pathogenic	0.75
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Benign	0.71	T
M_CAP	Benign	0.0061	T
MetaRNN	Benign	0.32	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.8	L
PhyloP100		9.3
PrimateAI	Uncertain	0.68	T
PROVEAN	Benign	-1.7	N
REVEL	Benign	0.27
Sift	Benign	0.23	T
Sift4G	Benign	0.33	T
Polyphen		1.0	D
Vest4		0.33
MutPred		0.35		Gain of catalytic residue at Q616 (P = 8e-04);
MVP		0.31
ClinPred		0.92	D
GERP RS		6.1
Varity_R		0.11
gMVP		0.27
Mutation Taster		=85/15	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

hg19: chr13-100617770;