chr18-62716225-A-G

Position:

• chr18-62716225-A-G

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_Moderate BS2

The NM_194449.4(PHLPP1):​c.542A>G​(p.His181Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000131 in 1,376,532 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.000013 (0 hom.)
• Consequence: PHLPP1 NM_194449.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.854

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]

ACMG classification

Verdict is Likely_benign. Variant got -6 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.11414334).
• BS2: High AC in GnomAdExome4 at 18 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PHLPP1	NM_194449.4	c.542A>G	p.His181Arg	missense_variant	1/17	ENST00000262719.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PHLPP1	ENST00000262719.10	c.542A>G	p.His181Arg	missense_variant	1/17	1	NM_194449.4	P1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 0.0000131 AC: 18 AN: 1376532 Hom.: 0 Cov.: 32 AF XY: 0.0000118 AC XY: 8 AN XY: 678862

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.0000401

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000158

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

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

Dec 19, 2022

The c.542A>G (p.H181R) alteration is located in exon 1 (coding exon 1) of the PHLPP1 gene. This alteration results from a A to G substitution at nucleotide position 542, causing the histidine (H) at amino acid position 181 to be replaced by an arginine (R). 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	Benign	0.15
BayesDel_addAF	Benign	-0.22	T
BayesDel_noAF	Benign	-0.55
CADD	Benign	17
DANN	Benign	0.93
DEOGEN2	Benign	0.092	T
Eigen	Benign	-0.21
Eigen_PC	Benign	-0.18
FATHMM_MKL	Benign	0.46	N
LIST_S2	Benign	0.46	T
M_CAP	Uncertain	0.18	D
MetaRNN	Benign	0.11	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.69	N
MutationTaster	Benign	0.57	D;D
PrimateAI	Pathogenic	0.93	D
PROVEAN	Benign	-0.53	N
REVEL	Benign	0.034
Sift	Uncertain	0.013	D
Sift4G	Benign	0.19	T
Vest4		0.091
MutPred		0.22		Gain of MoRF binding (P = 0.0215);
MVP		0.30
MPC		1.8
ClinPred		0.13	T
GERP RS		2.6
Varity_R		0.11
gMVP		0.45

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: chr18-60383458;