15-50244155-C-T

Variant names:

• chr15-50244155-C-T
• rs7164386
• NM_002112.4:c.1141-911G>A

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_002112.4(HDC):​c.1141-911G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0459 in 152,192 control chromosomes in the GnomAD database, including 479 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.046 (479 hom., cov: 32)
• Consequence: HDC NM_002112.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.276
• Publications: 2 publications found

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]

HDC Gene-Disease associations (from GenCC):

• Tourette syndrome

  Inheritance: Unknown, AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.98).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.146 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002112.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HDC	NM_002112.4	MANE Select	c.1141-911G>A		intron	N/A	NP_002103.2
	HDC	NM_001306146.2		c.1042-911G>A		intron	N/A	NP_001293075.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HDC	ENST00000267845.8	TSL:1 MANE Select	c.1141-911G>A		intron	N/A	ENSP00000267845.3
	HDC	ENST00000543581.5	TSL:1	c.1042-911G>A		intron	N/A	ENSP00000440252.1
	HDC	ENST00000559816.1	TSL:2	n.885-911G>A		intron	N/A

Frequencies

GnomAD3 genomes AF: 0.0458 AC: 6964 AN: 152074 Hom.: 475 Cov.: 32

Gnomad AFR AF: 0.149

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0108

Gnomad ASJ AF: 0.000577

Gnomad EAS AF: 0.0922

Gnomad SAS AF: 0.00311

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.0127

Gnomad NFE AF: 0.00123

Gnomad OTH AF: 0.0320

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0459 AC: 6989 AN: 152192 Hom.: 479 Cov.: 32 AF XY: 0.0438 AC XY: 3260 AN XY: 74412

African (AFR) AF: 0.149 AC: 6180 AN: 41508

American (AMR) AF: 0.0109 AC: 166 AN: 15282

Ashkenazi Jewish (ASJ) AF: 0.000577 AC: 2 AN: 3468

East Asian (EAS) AF: 0.0909 AC: 471 AN: 5184

South Asian (SAS) AF: 0.00311 AC: 15 AN: 4820

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10596

Middle Eastern (MID) AF: 0.0136 AC: 4 AN: 294

European-Non Finnish (NFE) AF: 0.00124 AC: 84 AN: 68012

Other (OTH) AF: 0.0317 AC: 67 AN: 2116

Alfa AF: 0.0337 Hom.: 61

Bravo AF: 0.0516

Asia WGS AF: 0.0530 AC: 188 AN: 3476

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.98
CADD	Benign	2.6
DANN	Benign	0.28
PhyloP100		-0.28
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs7164386; hg19: chr15-50536352;