8-52116294-T-C

Position:

• chr8-52116294-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001352837.2(ST18):​c.2984A>G​(p.Asp995Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,374 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: ST18 NM_001352837.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.95

Genes affected

ST18 (HGNC:18695): (ST18 C2H2C-type zinc finger transcription factor) Enables RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Involved in cytokine-mediated signaling pathway; negative regulation of cell population proliferation; and positive regulation of nitrogen compound metabolic process. Located in nucleus. Part of protein-DNA complex. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ST18	NM_001352837.2	c.2984A>G	p.Asp995Gly	missense_variant	25/26	ENST00000689386.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ST18	ENST00000689386.1	c.2984A>G	p.Asp995Gly	missense_variant	25/26		NM_001352837.2	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461374 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 726992

Gnomad4 AFR exome AF: 0.00

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: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 26, 2022

The c.2984A>G (p.D995G) alteration is located in exon 25 (coding exon 19) of the ST18 gene. This alteration results from a A to G substitution at nucleotide position 2984, causing the aspartic acid (D) at amino acid position 995 to be replaced by a glycine (G). 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	0.41
BayesDel_addAF	Uncertain	0.10	D
BayesDel_noAF	Benign	-0.090
CADD	Pathogenic	29
DANN	Uncertain	1.0
DEOGEN2	Benign	0.087	T
Eigen	Uncertain	0.67
Eigen_PC	Pathogenic	0.67
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.97	D
M_CAP	Benign	0.049	D
MetaRNN	Uncertain	0.65	D
MetaSVM	Benign	-0.77	T
MutationAssessor	Benign	1.4	L
MutationTaster	Benign	1.0	D
PrimateAI	Pathogenic	0.80	T
PROVEAN	Benign	-2.3	N
REVEL	Benign	0.24
Sift	Uncertain	0.011	D
Sift4G	Uncertain	0.032	D
Polyphen		1.0	D
Vest4		0.84
MVP		0.19
MPC		0.48
ClinPred		0.98	D
GERP RS		5.8
Varity_R		0.43
gMVP		0.79

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr8-53028854;