Genetic Variant KHK:p.Asp295Asp (chr2-27099738-T-C) – ACMG Classification: Benign (-11 pts)

Variant summary

Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4_StrongBP6_ModerateBP7BS2

The NM_006488.3(KHK):c.885T>C(p.Asp295Asp) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000159 in 1,614,054 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00096 ( 3 hom., cov: 32)

Exomes 𝑓: 0.000076 ( 0 hom. )

Consequence

KHK
NM_006488.3 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.85

Publications

0 publications found

Variant links:

Genes affected

KHK (HGNC:6315): (ketohexokinase) This gene encodes ketohexokinase that catalyzes conversion of fructose to fructose-1-phosphate. The product of this gene is the first enzyme with a specialized pathway that catabolizes dietary fructose. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]

KHK links:

CGREF1 (HGNC:16962): (cell growth regulator with EF-hand domain 1) Predicted to enable calcium ion binding activity. Predicted to be involved in negative regulation of cell population proliferation. Predicted to be located in extracellular region. [provided by Alliance of Genome Resources, Apr 2022]

CGREF1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -11 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.62).

BP6

Variant 2-27099738-T-C is Benign according to our data. Variant chr2-27099738-T-C is described in ClinVar as Likely_benign. ClinVar VariationId is 896779.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=-1.85 with no splicing effect.

BS2

High Homozygotes in GnomAd4 at 3 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006488.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KHK	NM_006488.3	MANE Select	c.885T>C	p.Asp295Asp	synonymous	Exon 8 of 8	NP_006479.1	P50053-1
KHK	NM_000221.3		c.885T>C	p.Asp295Asp	synonymous	Exon 8 of 8	NP_000212.1	P50053-2
CGREF1	NM_001166240.2		c.*46A>G		3_prime_UTR	Exon 6 of 6	NP_001159712.1	Q99674-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KHK	ENST00000260598.10	TSL:2 MANE Select	c.885T>C	p.Asp295Asp	synonymous	Exon 8 of 8	ENSP00000260598.5	P50053-1
KHK	ENST00000260599.11	TSL:1	c.885T>C	p.Asp295Asp	synonymous	Exon 8 of 8	ENSP00000260599.6	P50053-2
KHK	ENST00000464371.1	TSL:1	n.811T>C		non_coding_transcript_exon	Exon 6 of 6

Frequencies

GnomAD3 genomes

AF:

0.000914

AC:

139

AN:

152128

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00297

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00105

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000273

AC:

AN:

248866

AF XY:

0.000215

show subpopulations

Gnomad AFR exome

AF:

0.00321

Gnomad AMR exome

AF:

0.000434

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000759

AC:

111

AN:

1461808

Hom.:

Cov.:

AF XY:

0.0000674

AC XY:

AN XY:

727202

show subpopulations

African (AFR)

AF:

0.00239

AC:

AN:

33480

American (AMR)

AF:

0.000380

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53410

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1111968

Other (OTH)

AF:

0.000182

AC:

AN:

60386

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000959

AC:

146

AN:

152246

Hom.:

Cov.:

AF XY:

0.000900

AC XY:

AN XY:

74452

show subpopulations

African (AFR)

AF:

0.00313

AC:

130

AN:

41568

American (AMR)

AF:

0.00105

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5162

South Asian (SAS)

AF:

0.00

AC:

AN:

4816

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67996

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.504

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000559

Hom.:

Bravo

AF:

0.00105

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Likely benign

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Essential fructosuria (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.62

CADD

Benign

1.2

(source)

DANN

Benign

0.59

PhyloP100

-1.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=96/4

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over