chr20-54171644-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2PP3_StrongPP5

The NM_000782.5(CYP24A1):​c.476G>A​(p.Arg159Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000161 in 1,613,748 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

CYP24A1
NM_000782.5 missense

Scores

12
6
1

Clinical Significance

Likely pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 7.27
Variant links:
Genes affected
CYP24A1 (HGNC:2602): (cytochrome P450 family 24 subfamily A member 1) This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. This mitochondrial protein initiates the degradation of 1,25-dihydroxyvitamin D3, the physiologically active form of vitamin D3, by hydroxylation of the side chain. In regulating the level of vitamin D3, this enzyme plays a role in calcium homeostasis and the vitamin D endocrine system. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.989
PP5
Variant 20-54171644-C-T is Pathogenic according to our data. Variant chr20-54171644-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 29676.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CYP24A1NM_000782.5 linkuse as main transcriptc.476G>A p.Arg159Gln missense_variant 3/12 ENST00000216862.8 NP_000773.2 Q07973-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CYP24A1ENST00000216862.8 linkuse as main transcriptc.476G>A p.Arg159Gln missense_variant 3/121 NM_000782.5 ENSP00000216862.3 Q07973-1
CYP24A1ENST00000395955.7 linkuse as main transcriptc.476G>A p.Arg159Gln missense_variant 3/111 ENSP00000379285.3 Q07973-2
CYP24A1ENST00000395954.3 linkuse as main transcriptc.50G>A p.Arg17Gln missense_variant 1/101 ENSP00000379284.3 Q07973-3

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152044
Hom.:
0
Cov.:
32
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
GnomAD3 exomes
AF:
0.0000279
AC:
7
AN:
251260
Hom.:
0
AF XY:
0.0000295
AC XY:
4
AN XY:
135800
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.0000867
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000881
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000171
AC:
25
AN:
1461704
Hom.:
0
Cov.:
32
AF XY:
0.0000151
AC XY:
11
AN XY:
727164
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000126
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152044
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74242
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:
0.0000805
Hom.:
0
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Hypercalcemia, infantile, 1 Pathogenic:2
Likely pathogenic, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsApr 03, 2024- -
Pathogenic, no assertion criteria providedliterature onlyOMIMNov 03, 2011- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.74
BayesDel_addAF
Pathogenic
0.35
D
BayesDel_noAF
Pathogenic
0.47
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.82
D;.;.
Eigen
Pathogenic
0.73
Eigen_PC
Uncertain
0.61
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.97
D;D;D
M_CAP
Pathogenic
0.31
D
MetaRNN
Pathogenic
0.99
D;D;D
MetaSVM
Pathogenic
0.94
D
MutationAssessor
Pathogenic
3.5
M;M;.
PrimateAI
Uncertain
0.49
T
PROVEAN
Uncertain
-3.5
D;D;D
REVEL
Pathogenic
0.71
Sift
Uncertain
0.0040
D;D;D
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
1.0
D;.;.
Vest4
0.99
MutPred
0.95
Loss of MoRF binding (P = 0.0345);Loss of MoRF binding (P = 0.0345);.;
MVP
0.96
MPC
0.41
ClinPred
0.97
D
GERP RS
3.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.89
gMVP
0.93

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

LitVar

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

Other links and lift over

dbSNP: rs387907322; hg19: chr20-52788183; API