chr15-64156028-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate

The NM_000942.5(PPIB):​c.646G>A​(p.Glu216Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000657 in 152,190 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Consequence

PPIB
NM_000942.5 missense

Scores

2
5
11

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.73

Publications

0 publications found
Variant links:
Genes affected
PPIB (HGNC:9255): (peptidylprolyl isomerase B) The protein encoded by this gene is a cyclosporine-binding protein and is mainly located within the endoplasmic reticulum. It is associated with the secretory pathway and released in biological fluids. This protein can bind to cells derived from T- and B-lymphocytes, and may regulate cyclosporine A-mediated immunosuppression. Variants have been identified in this protein that give rise to recessive forms of osteogenesis imperfecta. [provided by RefSeq, Oct 2009]
SNX22 (HGNC:16315): (sorting nexin 22) The protein encoded by this gene is a sorting nexin that is found in the cytoplasm, where it interacts with membrane-bound phosphatidylinositol 3-phosphate. The encoded protein may play a role in intracellular trafficking. Two transcript variants, one protein-coding and the other not protein-coding, have been found for this gene. [provided by RefSeq, Dec 2012]

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM1
In a chain Peptidyl-prolyl cis-trans isomerase B (size 182) in uniprot entity PPIB_HUMAN there are 4 pathogenic changes around while only 1 benign (80%) in NM_000942.5
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.24268705).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000942.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PPIB
NM_000942.5
MANE Select
c.646G>Ap.Glu216Lys
missense
Exon 5 of 5NP_000933.1P23284
SNX22
NM_024798.3
MANE Select
c.*1520C>T
3_prime_UTR
Exon 7 of 7NP_079074.2Q96L94-1
SNX22
NR_073534.2
n.2194C>T
non_coding_transcript_exon
Exon 7 of 7

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PPIB
ENST00000300026.4
TSL:1 MANE Select
c.646G>Ap.Glu216Lys
missense
Exon 5 of 5ENSP00000300026.4P23284
SNX22
ENST00000325881.9
TSL:1 MANE Select
c.*1520C>T
3_prime_UTR
Exon 7 of 7ENSP00000323435.4Q96L94-1
SNX22
ENST00000560997.1
TSL:1
n.1915C>T
non_coding_transcript_exon
Exon 3 of 3

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152190
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
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
Cov.:
30
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152190
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74346
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41458
American (AMR)
AF:
0.00
AC:
0
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000192
AC:
1
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68024
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.53
BayesDel_addAF
Benign
-0.0025
T
BayesDel_noAF
Benign
-0.24
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.20
T
Eigen
Uncertain
0.20
Eigen_PC
Uncertain
0.35
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.94
D
M_CAP
Benign
0.028
D
MetaRNN
Benign
0.24
T
MetaSVM
Benign
-0.98
T
MutationAssessor
Benign
1.6
L
PhyloP100
5.7
PrimateAI
Pathogenic
0.79
T
PROVEAN
Benign
-2.0
N
REVEL
Benign
0.14
Sift
Benign
0.11
T
Sift4G
Benign
0.077
T
Polyphen
0.0050
B
Vest4
0.41
MutPred
0.34
Gain of methylation at E216 (P = 0.012)
MVP
0.71
MPC
0.50
ClinPred
0.88
D
GERP RS
5.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.58
gMVP
0.59
Mutation Taster
=34/66
disease causing

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: rs1036746834; hg19: chr15-64448227; API