rs104894212
Positions:
Variant summary
Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2PP3_StrongPP5
The NM_001360.3(DHCR7):c.744G>T(p.Trp248Cys) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).
Frequency
Genomes: not found (cov: 34)
Consequence
DHCR7
NM_001360.3 missense
NM_001360.3 missense
Scores
17
1
1
Clinical Significance
Conservation
PhyloP100: 6.84
Genes affected
DHCR7 (HGNC:2860): (7-dehydrocholesterol reductase) This gene encodes an enzyme that removes the C(7-8) double bond in the B ring of sterols and catalyzes the conversion of 7-dehydrocholesterol to cholesterol. This gene is ubiquitously expressed and its transmembrane protein localizes to the endoplasmic reticulum membrane and nuclear outer membrane. Mutations in this gene cause Smith-Lemli-Opitz syndrome (SLOS); a syndrome that is metabolically characterized by reduced serum cholesterol levels and elevated serum 7-dehydrocholesterol levels and phenotypically characterized by cognitive disability, facial dysmorphism, syndactyly of second and third toes, and holoprosencephaly in severe cases to minimal physical abnormalities and near-normal intelligence in mild cases. Alternative splicing results in multiple transcript variants that encode the same protein.[provided by RefSeq, Aug 2009]
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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, 0.987
PP5
Variant 11-71438966-C-A is Pathogenic according to our data. Variant chr11-71438966-C-A is described in ClinVar as [Pathogenic]. Clinvar id is 6782.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr11-71438966-C-A is described in Lovd as [Likely_pathogenic].
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
DHCR7 | NM_001360.3 | c.744G>T | p.Trp248Cys | missense_variant | 7/9 | ENST00000355527.8 | NP_001351.2 | |
DHCR7 | NM_001163817.2 | c.744G>T | p.Trp248Cys | missense_variant | 7/9 | NP_001157289.1 | ||
DHCR7 | XM_011544777.3 | c.744G>T | p.Trp248Cys | missense_variant | 7/9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
DHCR7 | ENST00000355527.8 | c.744G>T | p.Trp248Cys | missense_variant | 7/9 | 1 | NM_001360.3 | ENSP00000347717.4 | ||
DHCR7 | ENST00000685320.1 | c.159G>T | p.Trp53Cys | missense_variant | 6/8 | ENSP00000509319.1 |
Frequencies
GnomAD3 genomes Cov.: 34
GnomAD3 genomes
Cov.:
34
GnomAD4 exome Cov.: 33
GnomAD4 exome
Cov.:
33
GnomAD4 genome Cov.: 34
GnomAD4 genome
Cov.:
34
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link
Submissions by phenotype
Smith-Lemli-Opitz syndrome Pathogenic:1
Pathogenic, no assertion criteria provided | literature only | OMIM | Feb 14, 2000 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Pathogenic
DANN
Uncertain
DEOGEN2
Pathogenic
D;D;D;.
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Pathogenic
.;D;D;D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D;D;D;D
MetaSVM
Pathogenic
D
MutationAssessor
Pathogenic
H;H;.;.
PrimateAI
Pathogenic
D
PROVEAN
Pathogenic
D;D;D;D
REVEL
Pathogenic
Sift
Pathogenic
D;D;D;D
Sift4G
Pathogenic
D;D;D;.
Polyphen
D;D;.;.
Vest4
MutPred
Loss of stability (P = 0.17);Loss of stability (P = 0.17);.;.;
MVP
MPC
0.71
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at