rs16836477

chr2-200988734-A-G

Variant summary

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

The NM_001321623.1(HYCC2):c.832-313T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.217 in 152,142 control chromosomes in the GnomAD database, including 4,439 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 0.22 (4439 hom., cov: 32)
• Consequence: HYCC2 NM_001321623.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.713

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]

(HGNC:):

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.369 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HYCC2	NM_001321623.1	c.832-313T>C		intron_variant		ENST00000681958.1
LOC105373835	XR_007088050.1	n.200-20252A>G		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HYCC2	ENST00000681958.1	c.832-313T>C		intron_variant			NM_001321623.1	P3
HYCC2	ENST00000418596.7	c.832-313T>C		intron_variant		1		A1
HYCC2	ENST00000286181.7	c.*585-313T>C		intron_variant, NMD_transcript_variant		1
	ENST00000413848.1	n.369-20252A>G		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes AF: 0.217 AC: 32957 AN: 152022 Hom.: 4431 Cov.: 32

Gnomad AFR AF: 0.374

Gnomad AMI AF: 0.139

Gnomad AMR AF: 0.165

Gnomad ASJ AF: 0.215

Gnomad EAS AF: 0.00846

Gnomad SAS AF: 0.0709

Gnomad FIN AF: 0.164

Gnomad MID AF: 0.124

Gnomad NFE AF: 0.169

Gnomad OTH AF: 0.209

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

GnomAD4 genome AF: 0.217 AC: 33001 AN: 152142 Hom.: 4439 Cov.: 32 AF XY: 0.212 AC XY: 15805 AN XY: 74410

Gnomad4 AFR AF: 0.374

Gnomad4 AMR AF: 0.164

Gnomad4 ASJ AF: 0.215

Gnomad4 EAS AF: 0.00848

Gnomad4 SAS AF: 0.0710

Gnomad4 FIN AF: 0.164

Gnomad4 NFE AF: 0.169

Gnomad4 OTH AF: 0.207

Alfa AF: 0.189 Hom.: 1058

Bravo AF: 0.226

Asia WGS AF: 0.0670 AC: 233 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
Cadd	Benign	7.9
Dann	Benign	0.81

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: rs16836477; hg19: chr2-201853457;