rs374059459

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_000308.4(CTSA):​c.1009G>C​(p.Ala337Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000328 in 1,614,178 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. A337A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

CTSA
NM_000308.4 missense

Scores

1
17

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: -0.890

Publications

1 publications found
Variant links:
Genes affected
CTSA (HGNC:9251): (cathepsin A) This gene encodes a member of the peptidase S10 family of serine carboxypeptidases. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed to generate two chains that comprise the heterodimeric active enzyme. This enzyme possesses deamidase, esterase and carboxypeptidase activities and acts as a scaffold in the lysosomal multienzyme complex. Mutations in this gene are associated with galactosialidosis. [provided by RefSeq, Nov 2015]
CTSA Gene-Disease associations (from GenCC):
  • galactosialidosis
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp, Illumina, G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.019384235).
BP6
Variant 20-45895054-G-C is Benign according to our data. Variant chr20-45895054-G-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 529231.
BS1
Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.0000919 (14/152296) while in subpopulation SAS AF = 0.00124 (6/4830). AF 95% confidence interval is 0.000541. There are 0 homozygotes in GnomAd4. There are 8 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000308.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CTSA
NM_000308.4
MANE Select
c.1009G>Cp.Ala337Pro
missense
Exon 11 of 15NP_000299.3P10619-1
CTSA
NM_001127695.3
c.1009G>Cp.Ala337Pro
missense
Exon 11 of 15NP_001121167.1P10619-1
CTSA
NM_001167594.3
c.958G>Cp.Ala320Pro
missense
Exon 10 of 14NP_001161066.2P10619-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CTSA
ENST00000646241.3
MANE Select
c.1009G>Cp.Ala337Pro
missense
Exon 11 of 15ENSP00000493613.2P10619-1
CTSA
ENST00000372484.8
TSL:1
c.1063G>Cp.Ala355Pro
missense
Exon 11 of 15ENSP00000361562.3X6R8A1
CTSA
ENST00000191018.9
TSL:1
c.1009G>Cp.Ala337Pro
missense
Exon 11 of 15ENSP00000191018.5P10619-1

Frequencies

GnomAD3 genomes
AF:
0.0000920
AC:
14
AN:
152178
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000577
Gnomad SAS
AF:
0.00124
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000103
AC:
26
AN:
251322
AF XY:
0.000125
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000761
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000267
AC:
39
AN:
1461882
Hom.:
0
Cov.:
68
AF XY:
0.0000289
AC XY:
21
AN XY:
727242
show subpopulations
African (AFR)
AF:
0.000329
AC:
11
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.000227
AC:
9
AN:
39698
South Asian (SAS)
AF:
0.000104
AC:
9
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1112006
Other (OTH)
AF:
0.000166
AC:
10
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
4
7
11
14
18
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000919
AC:
14
AN:
152296
Hom.:
0
Cov.:
32
AF XY:
0.000107
AC XY:
8
AN XY:
74466
show subpopulations
African (AFR)
AF:
0.000120
AC:
5
AN:
41572
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000578
AC:
3
AN:
5186
South Asian (SAS)
AF:
0.00124
AC:
6
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68010
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.511
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000718
ESP6500AA
AF:
0.000681
AC:
3
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000115
AC:
14
Asia WGS
AF:
0.00260
AC:
9
AN:
3478

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Combined deficiency of sialidase AND beta galactosidase (1)
-
-
1
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.27
CADD
Benign
5.4
DANN
Benign
0.85
DEOGEN2
Benign
0.31
T
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.6
FATHMM_MKL
Benign
0.068
N
LIST_S2
Benign
0.77
T
M_CAP
Benign
0.026
D
MetaRNN
Benign
0.019
T
MetaSVM
Benign
-0.82
T
MutationAssessor
Benign
0.32
N
PhyloP100
-0.89
PrimateAI
Benign
0.25
T
PROVEAN
Benign
-0.54
N
REVEL
Uncertain
0.35
Sift
Benign
0.32
T
Sift4G
Benign
0.28
T
Polyphen
0.0050
B
Vest4
0.22
MVP
0.70
MPC
0.53
ClinPred
0.77
D
GERP RS
-11
Varity_R
0.42
gMVP
0.69
Mutation Taster
=77/23
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

Publications

Other links and lift over

dbSNP: rs374059459; hg19: chr20-44523693; API