chr2-88691710-C-T

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 2P and 9B. PM2BP4_ModerateBP6_ModerateBP7BS1

The NM_144563.3(RPIA):​c.12C>T​(p.Pro4Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000139 in 1,578,814 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. P4P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

RPIA
NM_144563.3 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.133

Publications

0 publications found
Variant links:
Genes affected
RPIA (HGNC:10297): (ribose 5-phosphate isomerase A) The protein encoded by this gene is an enzyme, which catalyzes the reversible conversion between ribose-5-phosphate and ribulose-5-phosphate in the pentose-phosphate pathway. This gene is highly conserved in most organisms. The enzyme plays an essential role in the carbohydrate metabolism. Mutations in this gene cause ribose 5-phosphate isomerase deficiency. A pseudogene is found on chromosome 18. [provided by RefSeq, Mar 2010]
EIF2AK3 (HGNC:3255): (eukaryotic translation initiation factor 2 alpha kinase 3) The protein encoded by this gene phosphorylates the alpha subunit of eukaryotic translation-initiation factor 2, leading to its inactivation, and thus to a rapid reduction of translational initiation and repression of global protein synthesis. This protein is thought to modulate mitochondrial function. It is a type I membrane protein located in the endoplasmic reticulum (ER), where it is induced by ER stress caused by malfolded proteins. Mutations in this gene are associated with Wolcott-Rallison syndrome. [provided by RefSeq, Sep 2015]
EIF2AK3 Gene-Disease associations (from GenCC):
  • Wolcott-Rallison syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Genomics England PanelApp, G2P, Labcorp Genetics (formerly Invitae)

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.37).
BP6
Variant 2-88691710-C-T is Benign according to our data. Variant chr2-88691710-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 748412.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-0.133 with no splicing effect.
BS1
Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.0000263 (4/152356) while in subpopulation SAS AF = 0.000414 (2/4834). AF 95% confidence interval is 0.0000728. There are 0 homozygotes in GnomAd4. There are 3 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_144563.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RPIA
NM_144563.3
MANE Select
c.12C>Tp.Pro4Pro
synonymous
Exon 1 of 9NP_653164.2P49247

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RPIA
ENST00000283646.5
TSL:1 MANE Select
c.12C>Tp.Pro4Pro
synonymous
Exon 1 of 9ENSP00000283646.3P49247
RPIA
ENST00000871060.1
c.12C>Tp.Pro4Pro
synonymous
Exon 1 of 9ENSP00000541119.1
RPIA
ENST00000871058.1
c.12C>Tp.Pro4Pro
synonymous
Exon 1 of 8ENSP00000541117.1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152238
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:
0.000413
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000340
AC:
7
AN:
206178
AF XY:
0.0000174
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000130
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000107
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000126
AC:
18
AN:
1426458
Hom.:
0
Cov.:
32
AF XY:
0.0000141
AC XY:
10
AN XY:
708448
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32448
American (AMR)
AF:
0.0000971
AC:
4
AN:
41178
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24302
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39334
South Asian (SAS)
AF:
0.000121
AC:
10
AN:
82908
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
41684
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4034
European-Non Finnish (NFE)
AF:
0.00000272
AC:
3
AN:
1101658
Other (OTH)
AF:
0.0000170
AC:
1
AN:
58912
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.550
Heterozygous variant carriers
0
1
2
4
5
6
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:
0.0000263
AC:
4
AN:
152356
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74516
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41590
American (AMR)
AF:
0.000131
AC:
2
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.000414
AC:
2
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.0000189

ClinVar

ClinVar submissions
Significance:Likely benign
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
BayesDel_noAF
Benign
-0.37
CADD
Benign
13
DANN
Benign
0.96
PhyloP100
-0.13
PromoterAI
0.048
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Mutation Taster
=100/0
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: rs776563928; hg19: chr2-88991228; API