Genetic Variant AFAP1L2:p.Arg724Trp (chr10-114297357-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001001936.3(AFAP1L2):c.2170C>T(p.Arg724Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000217 in 1,613,516 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

AFAP1L2
NM_001001936.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.33

Variant links:

Genes affected

AFAP1L2 (HGNC:25901): (actin filament associated protein 1 like 2) Enables SH2 domain binding activity; SH3 domain binding activity; and protein tyrosine kinase activator activity. Involved in several processes, including positive regulation of epidermal growth factor receptor signaling pathway; regulation of gene expression; and regulation of mitotic cell cycle. Located in cytosol and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

AFAP1L2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AFAP1L2	NM_001001936.3 link	c.2170C>T	p.Arg724Trp	missense_variant	Exon 17 of 19	ENST00000304129.9	NP_001001936.1	Q8N4X5-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
AFAP1L2	ENST00000304129.9 link	c.2170C>T	p.Arg724Trp	missense_variant	Exon 17 of 19	1	NM_001001936.3	ENSP00000303042.4	Q8N4X5-1
AFAP1L2	ENST00000369271.7 link	c.2170C>T	p.Arg724Trp	missense_variant	Exon 17 of 19	1		ENSP00000358276.3	Q8N4X5-2
AFAP1L2	ENST00000696688.1 link	c.2254C>T	p.Arg752Trp	missense_variant	Exon 18 of 20			ENSP00000512810.1	A0A8Q3SIY9
AFAP1L2	ENST00000491814.1 link	n.1292C>T		non_coding_transcript_exon_variant	Exon 5 of 6	2

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152156

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000239

AC:

AN:

250662

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135552

show subpopulations

Gnomad AFR exome

AF:

0.0000616

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000981

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000185

AC:

AN:

1461360

Hom.:

Cov.:

AF XY:

0.0000206

AC XY:

AN XY:

726994

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000104

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000144

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000526

AC:

AN:

152156

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74324

show subpopulations

Gnomad4 AFR

AF:

0.000121

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.0000642

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000577

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 22, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2170C>T (p.R724W) alteration is located in exon 17 (coding exon 17) of the AFAP1L2 gene. This alteration results from a C to T substitution at nucleotide position 2170, causing the arginine (R) at amino acid position 724 to be replaced by a tryptophan (W). 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

0.26

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.35

CADD

Benign

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.17

T;.

Eigen

Benign

0.17

Eigen_PC

Benign

0.046

FATHMM_MKL

Uncertain

0.86

LIST_S2

Uncertain

0.96

D;D

M_CAP

Benign

0.046

MetaRNN

Uncertain

0.61

D;D

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.3

M;M

PrimateAI

Benign

0.38

PROVEAN

Pathogenic

-6.3

D;D

REVEL

Benign

0.14

Sift

Pathogenic

0.0

D;D

Sift4G

Pathogenic

0.0010

D;D

Polyphen

1.0

D;D

Vest4

0.48

MVP

0.60

MPC

0.65

ClinPred

0.97

GERP RS

2.0

Varity_R

0.58

gMVP

0.10

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

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over