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GeneBe

7-155071565-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_024012.4(HTR5A):c.666G>C(p.Lys222Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000031 in 1,614,086 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

HTR5A
NM_024012.4 missense

Scores

1
12
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.95
Variant links:
Genes affected
HTR5A (HGNC:5300): (5-hydroxytryptamine receptor 5A) The neurotransmitter serotonin (5-hydroxytryptamine, 5-HT) has been implicated in a wide range of psychiatric conditions and also has vasoconstrictive and vasodilatory effects. The gene described in this record is a member of 5-hydroxytryptamine (serotonin) receptor family and encodes a multi-pass membrane protein that functions as a receptor for 5-hydroxytryptamine and couples to G-proteins. This protein has been shown to function in part through the regulation of intracellular Ca2+ mobilization. [provided by RefSeq, Jul 2008]
HTR5A-AS1 (HGNC:48956): (HTR5A antisense RNA 1)

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HTR5ANM_024012.4 linkuse as main transcriptc.666G>C p.Lys222Asn missense_variant 1/2 ENST00000287907.3
HTR5A-AS1NR_038945.1 linkuse as main transcript upstream_gene_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HTR5AENST00000287907.3 linkuse as main transcriptc.666G>C p.Lys222Asn missense_variant 1/21 NM_024012.4 P1
HTR5A-AS1ENST00000671665.1 linkuse as main transcriptn.886C>G non_coding_transcript_exon_variant 1/2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152204
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461882
Hom.:
0
Cov.:
35
AF XY:
0.00000275
AC XY:
2
AN XY:
727242
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
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:
0.00
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152204
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74352
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJan 19, 2024The c.666G>C (p.K222N) alteration is located in exon 1 (coding exon 1) of the HTR5A gene. This alteration results from a G to C substitution at nucleotide position 666, causing the lysine (K) at amino acid position 222 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.73
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Benign
-0.40
Cadd
Uncertain
24
Dann
Uncertain
1.0
DEOGEN2
Uncertain
0.52
D;D
Eigen
Uncertain
0.63
Eigen_PC
Uncertain
0.55
FATHMM_MKL
Uncertain
0.89
D
M_CAP
Benign
0.028
D
MetaRNN
Uncertain
0.70
D;D
MetaSVM
Benign
-0.63
T
MutationAssessor
Uncertain
2.9
M;M
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.72
T
PROVEAN
Uncertain
-3.7
D;.
REVEL
Uncertain
0.29
Sift
Uncertain
0.0030
D;.
Sift4G
Uncertain
0.0040
D;.
Polyphen
1.0
D;D
Vest4
0.60
MutPred
0.67
Loss of ubiquitination at K222 (P = 0.0161);Loss of ubiquitination at K222 (P = 0.0161);
MVP
0.75
MPC
1.2
ClinPred
0.99
D
GERP RS
3.9
Varity_R
0.68
gMVP
0.76

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: rs1795295692; hg19: chr7-154863275; API