chr15-50252520-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP5

The NM_002112.4(HDC):​c.951G>A​(p.Trp317Ter) variant causes a stop gained, splice region change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 32)

Consequence

HDC
NM_002112.4 stop_gained, splice_region

Scores

5
2
1
Splicing: ADA: 0.9996
2

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 5.97
Variant links:
Genes affected
HDC (HGNC:4855): (histidine decarboxylase) This gene encodes a member of the group II decarboxylase family and forms a homodimer that converts L-histidine to histamine in a pyridoxal phosphate dependent manner. Histamine regulates several physiologic processes, including neurotransmission, gastric acid secretion,inflamation, and smooth muscle tone.[provided by RefSeq, Aug 2010]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 15-50252520-C-T is Pathogenic according to our data. Variant chr15-50252520-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 14912.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HDCNM_002112.4 linkuse as main transcriptc.951G>A p.Trp317Ter stop_gained, splice_region_variant 9/12 ENST00000267845.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HDCENST00000267845.8 linkuse as main transcriptc.951G>A p.Trp317Ter stop_gained, splice_region_variant 9/121 NM_002112.4 P1P19113-1
HDCENST00000543581.5 linkuse as main transcriptc.951G>A p.Trp317Ter stop_gained, splice_region_variant 9/111 P19113-2
HDCENST00000559816.1 linkuse as main transcriptn.695G>A splice_region_variant, non_coding_transcript_exon_variant 2/52

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
32
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Tourette syndrome Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMJan 08, 2014- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.56
D
BayesDel_noAF
Pathogenic
0.57
CADD
Pathogenic
42
DANN
Uncertain
1.0
Eigen
Pathogenic
0.84
Eigen_PC
Pathogenic
0.70
FATHMM_MKL
Uncertain
0.96
D
M_CAP
Pathogenic
0.34
D
MutationTaster
Benign
1.0
A;A
Vest4
0.96
GERP RS
5.3

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.95
SpliceAI score (max)
0.030
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: rs267606861; hg19: chr15-50544717; API