1-39748945-T-G

Position:

• chr1-39748945-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_006112.4(PPIE):​c.551T>G​(p.Phe184Cys) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: PPIE NM_006112.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.76

Genes affected

PPIE (HGNC:9258): (peptidylprolyl isomerase E) The protein encoded by this gene is a member of the peptidyl-prolyl cis-trans isomerase (PPIase) family. PPIases catalyze the cis-trans isomerization of proline imidic peptide bonds in oligopeptides and accelerate the folding of proteins. This protein contains a highly conserved cyclophilin (CYP) domain as well as an RNA-binding domain. It was shown to possess PPIase and protein folding activities, and it also exhibits RNA-binding activity. Alternative splicing results in multiple transcript variants. A related pseudogene, which is also located on chromosome 1, has been identified. [provided by RefSeq, Aug 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.874

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PPIE	NM_006112.4	c.551T>G	p.Phe184Cys	missense_variant	8/10	ENST00000324379.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PPIE	ENST00000324379.10	c.551T>G	p.Phe184Cys	missense_variant	8/10	1	NM_006112.4	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 10, 2022

The c.551T>G (p.F184C) alteration is located in exon 8 (coding exon 8) of the PPIE gene. This alteration results from a T to G substitution at nucleotide position 551, causing the phenylalanine (F) at amino acid position 184 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Uncertain	0.033	T
BayesDel_noAF	Benign	-0.19
CADD	Pathogenic	30
DANN	Uncertain	0.99
DEOGEN2	Benign	0.33	T;.;.;T;.
Eigen	Benign	0.0074
Eigen_PC	Benign	0.015
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Uncertain	0.89	D;D;D;D;D
M_CAP	Benign	0.0053	T
MetaRNN	Pathogenic	0.87	D;D;D;D;D
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.9	M;M;.;.;M
MutationTaster	Benign	1.0	D;D;D;D;N
PrimateAI	Uncertain	0.75	T
PROVEAN	Pathogenic	-5.6	D;D;D;D;D
REVEL	Uncertain	0.34
Sift	Pathogenic	0.0	D;D;D;D;D
Sift4G	Uncertain	0.022	D;D;D;D;D
Polyphen		1.0	D;D;.;.;.
Vest4		0.73
MutPred		0.86		Loss of ubiquitination at K180 (P = 0.0787);Loss of ubiquitination at K180 (P = 0.0787);.;.;Loss of ubiquitination at K180 (P = 0.0787);
MVP		0.47
MPC		1.6
ClinPred		0.99	D
GERP RS		2.5
Varity_R		0.89
gMVP		0.90

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-40214617;