rs151190839

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP2

The NM_001098272.3(HMGCS1):​c.1181C>T​(p.Pro394Leu) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000634 in 1,578,098 control chromosomes in the GnomAD database, with no homozygous occurrence. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P394T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000049 ( 0 hom. )

Consequence

HMGCS1
NM_001098272.3 missense, splice_region

Scores

5
11
2
Splicing: ADA: 0.9952
1
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.34

Publications

0 publications found
Variant links:
Genes affected
HMGCS1 (HGNC:5007): (3-hydroxy-3-methylglutaryl-CoA synthase 1) Enables protein homodimerization activity. Predicted to be involved in acetyl-CoA metabolic process and farnesyl diphosphate biosynthetic process, mevalonate pathway. Predicted to be located in cytoplasm. Predicted to be active in cytosol. [provided by Alliance of Genome Resources, Apr 2022]
HMGCS1 Gene-Disease associations (from GenCC):
  • rigid spine syndrome
    Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 6 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Gene score misZ: 3.0389 (below the threshold of 3.09). Trascript score misZ: 4.1249 (above the threshold of 3.09). GenCC associations: The gene is linked to rigid spine syndrome.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001098272.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
HMGCS1
NM_001098272.3
MANE Select
c.1181C>Tp.Pro394Leu
missense splice_region
Exon 8 of 11NP_001091742.1Q01581
HMGCS1
NM_001324219.2
c.1181C>Tp.Pro394Leu
missense splice_region
Exon 7 of 10NP_001311148.1Q01581
HMGCS1
NM_001324220.2
c.1181C>Tp.Pro394Leu
missense splice_region
Exon 8 of 11NP_001311149.1Q01581

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
HMGCS1
ENST00000325110.11
TSL:1 MANE Select
c.1181C>Tp.Pro394Leu
missense splice_region
Exon 8 of 11ENSP00000322706.6Q01581
HMGCS1
ENST00000715988.1
c.1232C>Tp.Pro411Leu
missense splice_region
Exon 8 of 11ENSP00000520550.1A0ABB0MV10
HMGCS1
ENST00000433297.2
TSL:5
c.1181C>Tp.Pro394Leu
missense splice_region
Exon 7 of 10ENSP00000399402.2Q01581

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152016
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000656
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000120
AC:
3
AN:
251036
AF XY:
0.00000737
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000491
AC:
7
AN:
1425964
Hom.:
0
Cov.:
25
AF XY:
0.00000562
AC XY:
4
AN XY:
711672
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32778
American (AMR)
AF:
0.0000224
AC:
1
AN:
44656
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25906
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39546
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85590
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53392
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5692
European-Non Finnish (NFE)
AF:
0.00000556
AC:
6
AN:
1079194
Other (OTH)
AF:
0.00
AC:
0
AN:
59210
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.454
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000197
AC:
3
AN:
152134
Hom.:
0
Cov.:
31
AF XY:
0.0000134
AC XY:
1
AN XY:
74380
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41506
American (AMR)
AF:
0.0000655
AC:
1
AN:
15266
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4814
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10582
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68006
Other (OTH)
AF:
0.00
AC:
0
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000282
Hom.:
0
ExAC
AF:
0.00000824
AC:
1

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Pathogenic
0.23
D
BayesDel_noAF
Pathogenic
0.17
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.71
D
Eigen
Uncertain
0.50
Eigen_PC
Uncertain
0.54
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.97
D
M_CAP
Uncertain
0.086
D
MetaRNN
Uncertain
0.69
D
MetaSVM
Uncertain
-0.18
T
MutationAssessor
Uncertain
2.6
M
PhyloP100
9.3
PrimateAI
Uncertain
0.70
T
PROVEAN
Pathogenic
-4.7
D
REVEL
Pathogenic
0.65
Sift
Benign
0.040
D
Sift4G
Uncertain
0.053
T
Polyphen
0.90
P
Vest4
0.78
MVP
0.73
MPC
1.3
ClinPred
0.96
D
GERP RS
5.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.9
Varity_R
0.46
gMVP
0.71
Mutation Taster
=60/40
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Benign
0.55
SpliceAI score (max)
0.040
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs151190839; hg19: chr5-43294160; API