rs1805055

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_000621.5(HTR2A):​c.74C>T​(p.Thr25Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,792 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T25N) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

HTR2A
NM_000621.5 missense

Scores

2
17

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.85
Variant links:
Genes affected
HTR2A (HGNC:5293): (5-hydroxytryptamine receptor 2A) This gene encodes one of the receptors for serotonin, a neurotransmitter with many roles. Mutations in this gene are associated with susceptibility to schizophrenia and obsessive-compulsive disorder, and are also associated with response to the antidepressant citalopram in patients with major depressive disorder (MDD). MDD patients who also have a mutation in intron 2 of this gene show a significantly reduced response to citalopram as this antidepressant downregulates expression of this gene. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.083485425).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
HTR2ANM_000621.5 linkuse as main transcriptc.74C>T p.Thr25Ile missense_variant 2/4 ENST00000542664.4 NP_000612.1
HTR2ANM_001378924.1 linkuse as main transcriptc.74C>T p.Thr25Ile missense_variant 2/4 NP_001365853.1
HTR2ANM_001165947.5 linkuse as main transcriptc.-78+841C>T intron_variant NP_001159419.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
HTR2AENST00000542664.4 linkuse as main transcriptc.74C>T p.Thr25Ile missense_variant 2/41 NM_000621.5 ENSP00000437737 P1P28223-1
HTR2AENST00000543956.5 linkuse as main transcriptc.-78+841C>T intron_variant 1 ENSP00000441861
HTR2AENST00000612998.1 linkuse as main transcript upstream_gene_variant ENSP00000482708

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461792
Hom.:
0
Cov.:
33
AF XY:
0.00000138
AC XY:
1
AN XY:
727202
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.083
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Benign
-0.47
CADD
Benign
16
DANN
Uncertain
0.99
DEOGEN2
Benign
0.093
T;T
Eigen
Benign
-0.49
Eigen_PC
Benign
-0.31
FATHMM_MKL
Uncertain
0.76
D
LIST_S2
Benign
0.75
.;T
M_CAP
Benign
0.0098
T
MetaRNN
Benign
0.083
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.0
N;N
MutationTaster
Benign
1.0
D;N;N
PrimateAI
Benign
0.26
T
PROVEAN
Benign
-0.20
N;N
REVEL
Benign
0.018
Sift
Benign
0.059
T;T
Sift4G
Benign
0.41
T;T
Polyphen
0.037
B;B
Vest4
0.091
MutPred
0.22
Loss of phosphorylation at T25 (P = 0.0388);Loss of phosphorylation at T25 (P = 0.0388);
MVP
0.49
MPC
0.36
ClinPred
0.35
T
GERP RS
3.4
Varity_R
0.061
gMVP
0.54

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: rs1805055; hg19: chr13-47469968; COSMIC: COSV66328450; COSMIC: COSV66328450; API