Genetic Variant APLP1:p.Pro233Leu (chr19-35871884-C-T) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001024807.3(APLP1):c.698C>T(p.Pro233Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000378 in 1,613,920 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P233R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000085 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000033 ( 0 hom. )

Consequence

APLP1
NM_001024807.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.288

Variant links:

Genes affected

APLP1 (HGNC:597): (amyloid beta precursor like protein 1) This gene encodes a member of the highly conserved amyloid precursor protein gene family. The encoded protein is a membrane-associated glycoprotein that is cleaved by secretases in a manner similar to amyloid beta A4 precursor protein cleavage. This cleavage liberates an intracellular cytoplasmic fragment that may act as a transcriptional activator. The encoded protein may also play a role in synaptic maturation during cortical development. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008]

APLP1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.026880205).

BS2

High AC in GnomAd4 at 13 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
APLP1	NM_001024807.3 link	c.698C>T	p.Pro233Leu	missense_variant	Exon 6 of 17	ENST00000221891.9	NP_001019978.1	P51693-2
APLP1	NM_005166.5 link	c.698C>T	p.Pro233Leu	missense_variant	Exon 6 of 17		NP_005157.1	P51693-1
APLP1	XM_017026737.3 link	c.698C>T	p.Pro233Leu	missense_variant	Exon 6 of 16		XP_016882226.1
APLP1	XM_017026738.3 link	c.698C>T	p.Pro233Leu	missense_variant	Exon 6 of 16		XP_016882227.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
APLP1	ENST00000221891.9 link	c.698C>T	p.Pro233Leu	missense_variant	Exon 6 of 17	1	NM_001024807.3	ENSP00000221891.4		P51693-2

Frequencies

GnomAD3 genomes

AF:

0.0000855

AC:

AN:

152108

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000217

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.000288

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000399

AC:

AN:

250394

Hom.:

AF XY:

0.0000295

AC XY:

AN XY:

135550

show subpopulations

Gnomad AFR exome

AF:

0.000312

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.0000997

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000354

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000328

AC:

AN:

1461812

Hom.:

Cov.:

AF XY:

0.0000330

AC XY:

AN XY:

727224

show subpopulations

Gnomad4 AFR exome

AF:

0.000508

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.000421

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000144

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000855

AC:

AN:

152108

Hom.:

Cov.:

AF XY:

0.0000808

AC XY:

AN XY:

74300

show subpopulations

Gnomad4 AFR

AF:

0.000217

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.000288

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000148

Hom.:

Bravo

AF:

0.000113

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000412

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.060

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.33

CADD

Benign

2.7

DANN

Benign

0.78

DEOGEN2

Benign

0.019

T;.;.;.;T

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.012

LIST_S2

Benign

0.75

T;T;T;T;T

M_CAP

Benign

0.025

MetaRNN

Benign

0.027

T;T;T;T;T

MetaSVM

Benign

-0.60

MutationAssessor

Benign

-0.34

.;N;.;.;.

PrimateAI

Benign

0.43

PROVEAN

Benign

-0.52

N;N;.;.;.

REVEL

Benign

0.27

Sift

Benign

0.15

T;T;.;.;.

Sift4G

Benign

0.38

T;T;T;T;T

Polyphen

0.0

B;B;B;.;.

Vest4

0.10

MVP

0.53

MPC

0.35

ClinPred

0.0057

GERP RS

-4.7

gMVP

0.14

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

LitVar

Other links and lift over