10-69227269-G-C

Variant names:

• chr10-69227269-G-C
• rs750989819
• NM_025130.4:c.126G>C

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_025130.4(HKDC1):​c.126G>C​(p.Arg42Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. R42R) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 31)
• Consequence: HKDC1 NM_025130.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.17
• Publications: 0 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

ENSG00000229261 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.63).
• BP7: Synonymous conserved (PhyloP=-1.16 with no splicing effect.

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.126G>C	p.Arg42Arg	synonymous	Exon 2 of 18	NP_079406.4
	LOC101928994	NR_120648.1		n.121-1283C>G		intron	N/A

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HKDC1	ENST00000354624.6	TSL:1 MANE Select	c.126G>C	p.Arg42Arg	synonymous	Exon 2 of 18	ENSP00000346643.5	Q2TB90-1
	HKDC1	ENST00000953956.1		c.126G>C	p.Arg42Arg	synonymous	Exon 2 of 17	ENSP00000624015.1
	HKDC1	ENST00000953957.1		c.126G>C	p.Arg42Arg	synonymous	Exon 2 of 10	ENSP00000624016.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 31

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.63
CADD	Benign	1.9
DANN	Benign	0.56
PhyloP100		-1.2

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

Other links and lift over

dbSNP: rs750989819; hg19: chr10-70987025;