4-112540939-C-T

Variant names:

• chr4-112540939-C-T
• rs1737444229
• NM_018392.5:c.5792G>A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_018392.5(ZGRF1):​c.5792G>A​(p.Ser1931Asn) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: ZGRF1 NM_018392.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.38

Genes affected

ZGRF1 (HGNC:25654): (zinc finger GRF-type containing 1) The encoded protein contains GRF zinc finger (zf-GRF) and transmembrane domains. GRF zinc fingers are found in a number of DNA-binding proteins. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Apr 2017]

NEUROG2-AS1 (HGNC:40656): (NEUROG2 and ZGRF1 antisense RNA 1)

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.77

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ZGRF1	NM_018392.5	c.5792G>A	p.Ser1931Asn	missense_variant	Exon 26 of 28	ENST00000505019.6	NP_060862.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ZGRF1	ENST00000505019.6	c.5792G>A	p.Ser1931Asn	missense_variant	Exon 26 of 28	5	NM_018392.5	ENSP00000424737.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Dec 21, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.5792G>A (p.S1931N) alteration is located in exon 26 (coding exon 25) of the ZGRF1 gene. This alteration results from a G to A substitution at nucleotide position 5792, causing the serine (S) at amino acid position 1931 to be replaced by an asparagine (N). 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	Pathogenic	0.83
BayesDel_addAF	Uncertain	0.12	D
BayesDel_noAF	Uncertain	-0.070
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.71	D;D;.
Eigen	Pathogenic	0.89
Eigen_PC	Pathogenic	0.85
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Benign	0.83	T;.;T
M_CAP	Uncertain	0.24	D
MetaRNN	Pathogenic	0.77	D;D;D
MetaSVM	Pathogenic	1.0	D
MutationAssessor	Pathogenic	3.9	H;H;.
PROVEAN	Benign	-2.1	.;N;.
REVEL	Pathogenic	0.66
Sift	Uncertain	0.0060	.;D;.
Sift4G	Uncertain	0.015	D;D;D
Vest4		0.76
MutPred		0.36		Loss of disorder (P = 0.1448);Loss of disorder (P = 0.1448);.;
MVP		0.81
MPC		0.39
ClinPred		0.99	D
GERP RS		5.8
Varity_R		0.50
gMVP		0.61

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

Other links and lift over

dbSNP: rs1737444229; hg19: chr4-113462095;