chr16-87888178-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PP3_Strong

The NM_001739.2(CA5A):​c.869G>A​(p.Arg290Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000291 in 1,613,910 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R290W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

CA5A
NM_001739.2 missense

Scores

9
7
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.13

Publications

1 publications found
Variant links:
Genes affected
CA5A (HGNC:1377): (carbonic anhydrase 5A) Carbonic anhydrases (CAs) are a large family of zinc metalloenzymes that catalyze the reversible hydration of carbon dioxide. They participate in a variety of biological processes, including respiration, calcification, acid-base balance, bone resorption, and the formation of aqueous humor, cerebrospinal fluid, saliva, and gastric acid. They show extensive diversity in tissue distribution and in their subcellular localization. CA VA is localized in the mitochondria and expressed primarily in the liver. It may play an important role in ureagenesis and gluconeogenesis. CA5A gene maps to chromosome 16q24.3 and an unprocessed pseudogene has been assigned to 16p12-p11.2. [provided by RefSeq, Jul 2008]
CA5A Gene-Disease associations (from GenCC):
  • hyperammonemic encephalopathy due to carbonic anhydrase VA deficiency
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, G2P, ClinGen, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.979

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001739.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CA5A
NM_001739.2
MANE Select
c.869G>Ap.Arg290Gln
missense
Exon 7 of 7NP_001730.1P35218
CA5A
NM_001367225.1
c.774+3621G>A
intron
N/ANP_001354154.1A0A3B3IRX9
CA5A
NR_159798.1
n.1056G>A
non_coding_transcript_exon
Exon 8 of 8

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CA5A
ENST00000649794.3
MANE Select
c.869G>Ap.Arg290Gln
missense
Exon 7 of 7ENSP00000498065.2P35218
CA5A
ENST00000906212.1
c.1004G>Ap.Arg335Gln
missense
Exon 8 of 8ENSP00000576271.1
CA5A
ENST00000906206.1
c.965G>Ap.Arg322Gln
missense
Exon 8 of 8ENSP00000576265.1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152156
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000385
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000438
AC:
11
AN:
251132
AF XY:
0.0000442
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000217
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000287
AC:
42
AN:
1461636
Hom.:
0
Cov.:
31
AF XY:
0.0000371
AC XY:
27
AN XY:
727128
show subpopulations
African (AFR)
AF:
0.000120
AC:
4
AN:
33472
American (AMR)
AF:
0.0000447
AC:
2
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.000353
AC:
14
AN:
39698
South Asian (SAS)
AF:
0.0000928
AC:
8
AN:
86246
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5762
European-Non Finnish (NFE)
AF:
0.00000809
AC:
9
AN:
1111814
Other (OTH)
AF:
0.0000663
AC:
4
AN:
60376
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
3
6
8
11
14
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:
0.0000328
AC:
5
AN:
152274
Hom.:
0
Cov.:
32
AF XY:
0.0000537
AC XY:
4
AN XY:
74452
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41566
American (AMR)
AF:
0.0000654
AC:
1
AN:
15298
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000386
AC:
2
AN:
5180
South Asian (SAS)
AF:
0.000208
AC:
1
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10606
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68016
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.513
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.0000576
AC:
7
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.32
BayesDel_addAF
Uncertain
0.058
T
BayesDel_noAF
Pathogenic
0.14
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.53
D
Eigen
Uncertain
0.57
Eigen_PC
Uncertain
0.35
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Pathogenic
0.41
D
MetaRNN
Pathogenic
0.98
D
MetaSVM
Pathogenic
0.85
D
MutationAssessor
Pathogenic
4.4
H
PhyloP100
5.1
PrimateAI
Benign
0.32
T
PROVEAN
Uncertain
-3.7
D
REVEL
Pathogenic
0.71
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.86
MutPred
0.88
Loss of MoRF binding (P = 0.0258)
MVP
0.90
MPC
0.31
ClinPred
0.98
D
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.84
gMVP
0.78
Mutation Taster
=59/41
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.080
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: rs570682941; hg19: chr16-87921784; COSMIC: COSV99990605; COSMIC: COSV99990605; API