2-201028465-T-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001321623.1(HYCC2):c.-30-4426A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.317 in 152,074 control chromosomes in the GnomAD database, including 10,129 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.32 (10129 hom., cov: 32)
• Consequence: HYCC2 NM_001321623.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.33

Genes affected

HYCC2 (HGNC:28593): (hyccin PI4KA lipid kinase complex subunit 2) Predicted to be involved in phosphatidylinositol phosphate biosynthetic process and protein localization to plasma membrane. Predicted to be located in cytosol. Predicted to be active in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.02).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.591 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HYCC2	NM_001321623.1	c.-30-4426A>G		intron_variant		ENST00000681958.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HYCC2	ENST00000681958.1	c.-30-4426A>G		intron_variant			NM_001321623.1	P3

Frequencies

GnomAD3 genomes AF: 0.317 AC: 48172 AN: 151956 Hom.: 10104 Cov.: 32

Gnomad AFR AF: 0.597

Gnomad AMI AF: 0.178

Gnomad AMR AF: 0.208

Gnomad ASJ AF: 0.335

Gnomad EAS AF: 0.0127

Gnomad SAS AF: 0.158

Gnomad FIN AF: 0.206

Gnomad MID AF: 0.218

Gnomad NFE AF: 0.225

Gnomad OTH AF: 0.286

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.317 AC: 48254 AN: 152074 Hom.: 10129 Cov.: 32 AF XY: 0.312 AC XY: 23201 AN XY: 74332

Gnomad4 AFR AF: 0.597

Gnomad4 AMR AF: 0.208

Gnomad4 ASJ AF: 0.335

Gnomad4 EAS AF: 0.0127

Gnomad4 SAS AF: 0.157

Gnomad4 FIN AF: 0.206

Gnomad4 NFE AF: 0.225

Gnomad4 OTH AF: 0.291

Alfa AF: 0.276 Hom.: 878

Bravo AF: 0.328

Asia WGS AF: 0.139 AC: 487 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.0
Cadd	Benign	0.71
Dann	Benign	0.37

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: rs7597409; hg19: chr2-201893188;