NM_001256613.2:c.304T>C

Variant names:

• chr3-184104206-T-C
• rs1293335443
• NM_001256613.2:c.304T>C

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_001256613.2(HTR3E):​c.304T>C​(p.Trp102Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,612,224 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 Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 30)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: HTR3E NM_001256613.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.40
• Publications: 0 publications found

Genes affected

HTR3E (HGNC:24005): (5-hydroxytryptamine receptor 3E) This locus encodes a 5-hydroxytryptamine (serotonin) receptor subunit. The encoded protein, subunit E, may play a role in neurotransmission in myenteric neurons. Genes encoding subunits C, D and E form a cluster on chromosome 3. Alternatively spliced transcript variants encoding distinct isoforms have been described. [provided by RefSeq, Feb 2012]

HTR3E-AS1 (HGNC:41032): (HTR3E antisense RNA 1)

ACMG classification

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.981

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001256613.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HTR3E	NM_001256613.2	MANE Select	c.304T>C	p.Trp102Arg	missense	Exon 4 of 9	NP_001243542.1	A5X5Y0-1
	HTR3E	NM_001256614.1		c.304T>C	p.Trp102Arg	missense	Exon 2 of 7	NP_001243543.1	A5X5Y0-6
	HTR3E	NM_182589.2		c.349T>C	p.Trp117Arg	missense	Exon 3 of 8	NP_872395.2	A5X5Y0-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HTR3E	ENST00000415389.6	TSL:1 MANE Select	c.304T>C	p.Trp102Arg	missense	Exon 4 of 9	ENSP00000401444.2	A5X5Y0-1
	HTR3E	ENST00000440596.2	TSL:1	c.304T>C	p.Trp102Arg	missense	Exon 2 of 7	ENSP00000406050.2	A5X5Y0-6
	HTR3E	ENST00000335304.6	TSL:1	c.349T>C	p.Trp117Arg	missense	Exon 3 of 8	ENSP00000335511.2	A5X5Y0-3

Frequencies

GnomAD3 genomes AF: 0.0000132 AC: 2 AN: 152044 Hom.: 0 Cov.: 30

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460180 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 726410

African (AFR) AF: 0.00 AC: 0 AN: 33352

American (AMR) AF: 0.00 AC: 0 AN: 44570

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26072

East Asian (EAS) AF: 0.00 AC: 0 AN: 39554

South Asian (SAS) AF: 0.00 AC: 0 AN: 86052

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53320

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5726

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111252

Other (OTH) AF: 0.0000166 AC: 1 AN: 60282

GnomAD4 genome AF: 0.0000132 AC: 2 AN: 152044 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 74242

African (AFR) AF: 0.00 AC: 0 AN: 41398

American (AMR) AF: 0.0000656 AC: 1 AN: 15252

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5188

South Asian (SAS) AF: 0.00 AC: 0 AN: 4820

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10592

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68004

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000378

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.86
BayesDel_addAF	Pathogenic	0.35	D
BayesDel_noAF	Pathogenic	0.26
CADD	Benign	22
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.71	D
Eigen	Uncertain	0.62
Eigen_PC	Uncertain	0.50
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Benign	0.81	T
M_CAP	Benign	0.029	D
MetaRNN	Pathogenic	0.98	D
MetaSVM	Uncertain	0.71	D
MutationAssessor	Pathogenic	3.9	H
PhyloP100		3.4
PrimateAI	Benign	0.40	T
PROVEAN	Pathogenic	-12	D
REVEL	Pathogenic	0.74
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.045	D
Polyphen		1.0	D
Vest4		0.63
MutPred		0.89		Gain of disorder (P = 0.0052)
MVP		0.95
MPC		0.47
ClinPred		1.0	D
GERP RS		3.5
Varity_R		0.75
gMVP		0.51
Mutation Taster		=83/17	polymorphism

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: rs1293335443; hg19: chr3-183821994;