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rs550921485

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_002143.3(HPCA):​c.568G>A​(p.Ala190Thr) variant causes a missense change. The variant allele was found at a frequency of 0.000203 in 1,570,368 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00021 ( 4 hom. )

Consequence

HPCA
NM_002143.3 missense

Scores

4
15

Clinical Significance

Likely benign criteria provided, single submitter P:1B:1

Conservation

PhyloP100: 4.03
Variant links:
Genes affected
HPCA (HGNC:5144): (hippocalcin) The protein encoded by this gene is a member of neuron-specific calcium-binding proteins family found in the retina and brain. This protein is associated with the plasma membrane. It has similarities to proteins located in the photoreceptor cells that regulate photosignal transduction in a calcium-sensitive manner. This protein displays recoverin activity and a calcium-dependent inhibition of rhodopsin kinase. It is identical to the rat and mouse hippocalcin proteins and thought to play an important role in neurons of the central nervous system in a number of species. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.005412847).
BP6
Variant 1-32893848-G-A is Benign according to our data. Variant chr1-32893848-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 190120.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Homozygotes in GnomAdExome4 at 4 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HPCANM_002143.3 linkuse as main transcriptc.568G>A p.Ala190Thr missense_variant 4/4 ENST00000373467.4
HPCAXM_005270792.4 linkuse as main transcriptc.568G>A p.Ala190Thr missense_variant 4/4
HPCAXM_017001118.3 linkuse as main transcriptc.568G>A p.Ala190Thr missense_variant 4/4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HPCAENST00000373467.4 linkuse as main transcriptc.568G>A p.Ala190Thr missense_variant 4/41 NM_002143.3 P1
HPCAENST00000459874.5 linkuse as main transcriptn.244G>A non_coding_transcript_exon_variant 3/32
HPCAENST00000470166.5 linkuse as main transcriptn.316G>A non_coding_transcript_exon_variant 3/32
HPCAENST00000470896.1 linkuse as main transcriptn.106+219G>A intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
AF:
0.0000986
AC:
15
AN:
152166
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00269
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000495
AC:
89
AN:
179930
Hom.:
3
AF XY:
0.000658
AC XY:
63
AN XY:
95816
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000226
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00353
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000408
GnomAD4 exome
AF:
0.000214
AC:
303
AN:
1418084
Hom.:
4
Cov.:
31
AF XY:
0.000288
AC XY:
202
AN XY:
701576
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.000118
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00352
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.17e-7
Gnomad4 OTH exome
AF:
0.000255
GnomAD4 genome
AF:
0.0000985
AC:
15
AN:
152284
Hom.:
0
Cov.:
32
AF XY:
0.000107
AC XY:
8
AN XY:
74464
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00269
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000868
Hom.:
0
Bravo
AF:
0.0000453
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.000345
AC:
41
Asia WGS
AF:
0.00115
AC:
4
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Pathogenic:1Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Torsion dystonia 2 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMApr 02, 2015- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeDec 07, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.40
T
BayesDel_noAF
Benign
-0.35
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Benign
0.12
T
Eigen
Benign
-0.18
Eigen_PC
Benign
0.018
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Uncertain
0.88
D
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.0054
T
MetaSVM
Benign
-0.90
T
MutationAssessor
Benign
1.1
L
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.67
T
PROVEAN
Benign
-0.28
N
REVEL
Benign
0.10
Sift
Benign
0.18
T
Sift4G
Benign
0.098
T
Polyphen
0.0030
B
Vest4
0.12
MutPred
0.14
Loss of helix (P = 0.0558);
MVP
0.66
MPC
0.90
ClinPred
0.071
T
GERP RS
3.5
Varity_R
0.41
gMVP
0.79

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: rs550921485; hg19: chr1-33359449; COSMIC: COSV104411802; COSMIC: COSV104411802; API