Genetic Variant NM_032785.4:c.1042C>T (chr1-48590895-G-A) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_032785.4(AGBL4):c.1042C>T(p.Arg348Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000249 in 1,608,334 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R348Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

AGBL4
NM_032785.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.81

Variant links:

Genes affected

AGBL4 (HGNC:25892): (AGBL carboxypeptidase 4) Predicted to enable metallocarboxypeptidase activity and tubulin binding activity. Predicted to be involved in C-terminal protein deglutamylation; defense response to virus; and protein side chain deglutamylation. Predicted to act upstream of or within several processes, including axonal transport of mitochondrion; positive regulation of ubiquitin-dependent protein catabolic process; and regulation of blastocyst development. Located in Golgi apparatus; centriole; and ciliary basal body. [provided by Alliance of Genome Resources, Apr 2022]

AGBL4 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.3485186).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AGBL4	NM_032785.4 link	c.1042C>T	p.Arg348Trp	missense_variant	Exon 10 of 14	ENST00000371839.6	NP_116174.3	Q5VU57-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AGBL4	ENST00000371839.6 link	c.1042C>T	p.Arg348Trp	missense_variant	Exon 10 of 14	2	NM_032785.4	ENSP00000360905.1		Q5VU57-1
AGBL4	ENST00000416121.5 link	c.577C>T	p.Arg193Trp	missense_variant	Exon 6 of 7	1		ENSP00000401622.1		H0Y5X4

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152040

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

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

GnomAD3 exomes

AF:

0.0000375

AC:

AN:

240192

Hom.:

AF XY:

0.0000154

AC XY:

AN XY:

129834

show subpopulations

Gnomad AFR exome

AF:

0.000342

Gnomad AMR exome

AF:

0.0000297

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000275

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000199

AC:

AN:

1456294

Hom.:

Cov.:

AF XY:

0.0000111

AC XY:

AN XY:

723566

show subpopulations

Gnomad4 AFR exome

AF:

0.000209

Gnomad4 AMR exome

AF:

0.0000227

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000253

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000144

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152040

Hom.:

Cov.:

AF XY:

0.0000539

AC XY:

AN XY:

74274

show subpopulations

Gnomad4 AFR

AF:

0.000242

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000579

Hom.:

Bravo

AF:

0.0000907

ESP6500AA

AF:

0.000511

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000497

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 13, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1042C>T (p.R348W) alteration is located in exon 10 (coding exon 10) of the AGBL4 gene. This alteration results from a C to T substitution at nucleotide position 1042, causing the arginine (R) at amino acid position 348 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

Pathogenic

0.68

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.23

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.075

T;.

Eigen

Uncertain

0.25

Eigen_PC

Uncertain

0.25

FATHMM_MKL

Uncertain

0.83

LIST_S2

Uncertain

0.94

D;D

M_CAP

Benign

0.038

MetaRNN

Benign

0.35

T;T

MetaSVM

Uncertain

0.14

MutationAssessor

Pathogenic

3.1

M;.

PrimateAI

Uncertain

0.60

PROVEAN

Pathogenic

-5.5

D;.

REVEL

Benign

0.28

Sift

Uncertain

0.0010

D;.

Sift4G

Pathogenic

0.0010

D;D

Polyphen

1.0

D;.

Vest4

0.56

MVP

0.16

MPC

0.61

ClinPred

0.83

GERP RS

2.7

Varity_R

0.69

gMVP

0.68

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