Genetic Variant AJAP1:p.Ala142Val (chr1-4712295-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_018836.4(AJAP1):c.425C>T(p.Ala142Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000936 in 1,495,912 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000097 ( 0 hom. )

Consequence

AJAP1
NM_018836.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.558

Publications

0 publications found

Variant links:

Genes affected

AJAP1 (HGNC:30801): (adherens junctions associated protein 1) Enables beta-catenin binding activity. Involved in negative regulation of cell-matrix adhesion; negative regulation of wound healing; and regulation of polarized epithelial cell differentiation. Located in several cellular components, including adherens junction; basolateral plasma membrane; and cell-cell contact zone. Is spanning component of plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

AJAP1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.055191517).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AJAP1	NM_018836.4 link	c.425C>T	p.Ala142Val	missense_variant	Exon 2 of 6	ENST00000378191.5	NP_061324.1	Q9UKB5
AJAP1	NM_001042478.2 link	c.425C>T	p.Ala142Val	missense_variant	Exon 2 of 6		NP_001035943.1	Q9UKB5
AJAP1	XM_011541786.3 link	c.425C>T	p.Ala142Val	missense_variant	Exon 2 of 7		XP_011540088.1	Q9UKB5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
AJAP1	ENST00000378191.5 link	c.425C>T	p.Ala142Val	missense_variant	Exon 2 of 6	1	NM_018836.4	ENSP00000367433.3	Q9UKB5
AJAP1	ENST00000378190.7 link	c.425C>T	p.Ala142Val	missense_variant	Exon 2 of 6	5		ENSP00000367432.3	Q9UKB5
AJAP1	ENST00000466761.1 link	n.*130C>T		downstream_gene_variant		5

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152098

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:

0.000195

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

GnomAD2 exomes

AF:

0.0000576

AC:

AN:

121442

AF XY:

0.0000309

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000529

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000967

AC:

AN:

1343696

Hom.:

Cov.:

AF XY:

0.00000609

AC XY:

AN XY:

656962

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

29718

American (AMR)

AF:

0.00

AC:

AN:

27584

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19922

East Asian (EAS)

AF:

0.000219

AC:

AN:

36596

South Asian (SAS)

AF:

0.0000296

AC:

AN:

67546

European-Finnish (FIN)

AF:

0.00

AC:

AN:

45192

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5308

European-Non Finnish (NFE)

AF:

9.47e-7

AC:

AN:

1056426

Other (OTH)

AF:

0.0000361

AC:

AN:

55404

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.479

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152216

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74422

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41574

American (AMR)

AF:

0.00

AC:

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000195

AC:

AN:

5120

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67990

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000302

ExAC

AF:

0.0000338

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 04, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.425C>T (p.A142V) alteration is located in exon 2 (coding exon 2) of the AJAP1 gene. This alteration results from a C to T substitution at nucleotide position 425, causing the alanine (A) at amino acid position 142 to be replaced by a valine (V). 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

0.10

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.71

CADD

Benign

(source)

DANN

Benign

0.94

DEOGEN2

Benign

0.022

T;T

Eigen

Benign

-0.97

Eigen_PC

Benign

-0.97

FATHMM_MKL

Benign

0.13

LIST_S2

Benign

0.49

.;T

M_CAP

Benign

0.013

MetaRNN

Benign

0.055

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

N;N

PhyloP100

0.56

PrimateAI

Uncertain

0.55

PROVEAN

Benign

-1.4

N;N

REVEL

Benign

0.017

Sift

Benign

0.20

T;T

Sift4G

Benign

0.26

T;T

Polyphen

0.16

B;B

Vest4

0.055

MutPred

0.11

Loss of helix (P = 0.1299);Loss of helix (P = 0.1299);

MVP

0.41

MPC

0.56

ClinPred

0.038

GERP RS

0.88

Varity_R

0.066

gMVP

0.18

Mutation Taster

=98/2

polymorphism

(source)

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

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chr1-4712295-C-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over