Genetic Variant PHLPP1:p.Ala135_Ala137dup (chr18-62716074-T-TCCGCGGCCG) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP3

The NM_194449.4(PHLPP1):c.403_411dupGCGGCCGCC(p.Ala135_Ala137dup) variant causes a conservative inframe insertion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000135 in 1,486,724 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000067 ( 0 hom., cov: 31)

Exomes 𝑓: 7.5e-7 ( 0 hom. )

Consequence

PHLPP1
NM_194449.4 conservative_inframe_insertion

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.77

Publications

0 publications found

Variant links:

Genes affected

PHLPP1 (HGNC:20610): (PH domain and leucine rich repeat protein phosphatase 1) This gene encodes a member of the serine/threonine phosphatase family. The encoded protein promotes apoptosis by dephosphorylating and inactivating the serine/threonine kinase Akt, and functions as a tumor suppressor in multiple types of cancer. Increased expression of this gene may also play a role in obesity and type 2 diabetes by interfering with Akt-mediated insulin signaling. [provided by RefSeq, Dec 2011]

PHLPP1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP3

Nonframeshift variant in repetitive region in NM_194449.4

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PHLPP1	NM_194449.4 link	c.403_411dupGCGGCCGCC	p.Ala135_Ala137dup	conservative_inframe_insertion	Exon 1 of 17	ENST00000262719.10	NP_919431.2	O60346-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PHLPP1	ENST00000262719.10 link	c.403_411dupGCGGCCGCC	p.Ala135_Ala137dup	conservative_inframe_insertion	Exon 1 of 17	1	NM_194449.4	ENSP00000262719.4		O60346-1

Frequencies

GnomAD3 genomes

AF:

0.00000671

AC:

AN:

148970

Hom.:

Cov.:

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:

0.000208

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

AF:

7.48e-7

AC:

AN:

1337754

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

658462

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

27092

American (AMR)

AF:

0.00

AC:

AN:

29360

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

22580

East Asian (EAS)

AF:

0.0000310

AC:

AN:

32306

South Asian (SAS)

AF:

0.00

AC:

AN:

72942

European-Finnish (FIN)

AF:

0.00

AC:

AN:

32492

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4304

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1060940

Other (OTH)

AF:

0.00

AC:

AN:

55738

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.325

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000671

AC:

AN:

148970

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

72720

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

40382

American (AMR)

AF:

0.00

AC:

AN:

15102

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3438

East Asian (EAS)

AF:

0.000208

AC:

AN:

4808

South Asian (SAS)

AF:

0.00

AC:

AN:

4654

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10326

Middle Eastern (MID)

AF:

0.00

AC:

AN:

282

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67028

Other (OTH)

AF:

0.00

AC:

AN:

2058

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

1.8

Mutation Taster

=77/23

polymorphism

(source)

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over