5-75355435-G-A

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 1P and 2B. PP2BP4_Moderate

The NM_000859.3(HMGCR):​c.1793G>A​(p.Arg598His) variant causes a missense change. The variant allele was found at a frequency of 0.0000142 in 1,614,058 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

HMGCR
NM_000859.3 missense

Scores

2
4
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.87
Variant links:
Genes affected
HMGCR (HGNC:5006): (3-hydroxy-3-methylglutaryl-CoA reductase) HMG-CoA reductase is the rate-limiting enzyme for cholesterol synthesis and is regulated via a negative feedback mechanism mediated by sterols and non-sterol metabolites derived from mevalonate, the product of the reaction catalyzed by reductase. Normally in mammalian cells this enzyme is suppressed by cholesterol derived from the internalization and degradation of low density lipoprotein (LDL) via the LDL receptor. Competitive inhibitors of the reductase induce the expression of LDL receptors in the liver, which in turn increases the catabolism of plasma LDL and lowers the plasma concentration of cholesterol, an important determinant of atherosclerosis. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), HMGCR. . Gene score misZ 3.7591 (greater than the threshold 3.09). Trascript score misZ 4.2252 (greater than threshold 3.09). GenCC has associacion of gene with muscular dystrophy, limb-girdle, autosomal recessive 28.
BP4
Computational evidence support a benign effect (MetaRNN=0.25866723).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HMGCRNM_000859.3 linkuse as main transcriptc.1793G>A p.Arg598His missense_variant 14/20 ENST00000287936.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HMGCRENST00000287936.9 linkuse as main transcriptc.1793G>A p.Arg598His missense_variant 14/201 NM_000859.3 P1P04035-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152174
Hom.:
0
Cov.:
33
show subpopulations
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000150
AC:
22
AN:
1461884
Hom.:
0
Cov.:
32
AF XY:
0.0000138
AC XY:
10
AN XY:
727240
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000180
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152174
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000564
Hom.:
0
Bravo
AF:
0.0000151

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJun 12, 2023The c.1793G>A (p.R598H) alteration is located in exon 14 (coding exon 13) of the HMGCR gene. This alteration results from a G to A substitution at nucleotide position 1793, causing the arginine (R) at amino acid position 598 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.081
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.44
CADD
Pathogenic
30
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.17
T;T;.
Eigen
Benign
0.11
Eigen_PC
Uncertain
0.28
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.95
.;D;D
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.26
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.90
L;L;.
MutationTaster
Benign
0.96
D;D;D
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-0.52
N;N;N
REVEL
Benign
0.12
Sift
Uncertain
0.013
D;D;D
Sift4G
Uncertain
0.0080
D;D;D
Polyphen
0.53
P;P;P
Vest4
0.23
MutPred
0.59
Loss of MoRF binding (P = 0.061);Loss of MoRF binding (P = 0.061);.;
MVP
0.42
MPC
1.3
ClinPred
0.73
D
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.45
gMVP
0.68

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1228694899; hg19: chr5-74651260; COSMIC: COSV55316374; COSMIC: COSV55316374; API