rs774349922

Variant names:

• chr10-69239079-G-A
• rs774349922
• NM_025130.4:c.533G>A

Variant summary

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

The NM_025130.4(HKDC1):​c.533G>A​(p.Arg178Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000198 in 1,613,760 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000039 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000018 (0 hom.)
• Consequence: HKDC1 NM_025130.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.72
• Publications: 3 publications found

Genes affected

HKDC1 (HGNC:23302): (hexokinase domain containing 1) This gene encodes a member of the hexokinase protein family. The encoded protein is involved in glucose metabolism, and reduced expression may be associated with gestational diabetes mellitus. High expression of this gene may also be associated with poor prognosis in hepatocarcinoma. [provided by RefSeq, Sep 2016]

HKDC1 Gene-Disease associations (from GenCC):

• retinitis pigmentosa

  Inheritance: AR Classification: LIMITED Submitted by: G2P

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=0.27611747).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_025130.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HKDC1	NM_025130.4	MANE Select	c.533G>A	p.Arg178Gln	missense	Exon 5 of 18	NP_079406.4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HKDC1	ENST00000354624.6	TSL:1 MANE Select	c.533G>A	p.Arg178Gln	missense	Exon 5 of 18	ENSP00000346643.5	Q2TB90-1
	HKDC1	ENST00000953956.1		c.496-1573G>A		intron	N/A	ENSP00000624015.1
	HKDC1	ENST00000953957.1		c.495+5946G>A		intron	N/A	ENSP00000624016.1

Frequencies

GnomAD3 genomes AF: 0.0000394 AC: 6 AN: 152186 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000882

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000199 AC: 5 AN: 251360 AF XY: 0.00000736

Gnomad AFR exome AF: 0.0000615

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000352

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000178 AC: 26 AN: 1461574 Hom.: 0 Cov.: 30 AF XY: 0.0000179 AC XY: 13 AN XY: 727092

African (AFR) AF: 0.0000299 AC: 1 AN: 33468

American (AMR) AF: 0.00 AC: 0 AN: 44708

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26126

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86240

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53398

Middle Eastern (MID) AF: 0.000173 AC: 1 AN: 5766

European-Non Finnish (NFE) AF: 0.0000198 AC: 22 AN: 1111792

Other (OTH) AF: 0.0000331 AC: 2 AN: 60376

GnomAD4 genome AF: 0.0000394 AC: 6 AN: 152186 Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1 AN XY: 74350

African (AFR) AF: 0.00 AC: 0 AN: 41448

American (AMR) AF: 0.00 AC: 0 AN: 15276

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5192

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10610

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000882 AC: 6 AN: 68048

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.000135 Hom.: 0

Bravo AF: 0.0000340

ExAC AF: 0.0000165 AC: 2

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.020	T
BayesDel_noAF	Uncertain	-0.080
CADD	Uncertain	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.26	T
Eigen	Benign	-0.27
Eigen_PC	Benign	-0.18
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Uncertain	0.92	D
M_CAP	Uncertain	0.11	D
MetaRNN	Benign	0.28	T
MetaSVM	Uncertain	0.43	D
MutationAssessor	Benign	1.5	L
PhyloP100		4.7
PrimateAI	Benign	0.30	T
PROVEAN	Benign	-0.24	N
REVEL	Uncertain	0.36
Sift	Uncertain	0.0040	D
Sift4G	Uncertain	0.0080	D
Polyphen		0.011	B
Vest4		0.23
MVP		0.89
MPC		0.43
ClinPred		0.73	D
GERP RS		4.9
Varity_R		0.49
gMVP		0.61
Mutation Taster		=72/28	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

dbSNP: rs774349922; hg19: chr10-70998835; COSMIC: COSV100664546;