chr15-86674322-G-T

Variant names:

• chr15-86674322-G-T
• rs181958589
• NM_001386094.1:c.3044G>T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001386094.1(AGBL1):​c.3044G>T​(p.Cys1015Phe) variant causes a missense change. The variant allele was found at a frequency of 0.00000657 in 152,322 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. C1015S) has been classified as Likely benign.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
• Consequence: AGBL1 NM_001386094.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.91
• Publications: 0 publications found

Genes affected

AGBL1 (HGNC:26504): (AGBL carboxypeptidase 1) Polyglutamylation is a reversible posttranslational modification catalyzed by polyglutamylases that results in the addition of glutamate side chains on the modified protein. This gene encodes a glutamate decarboxylase that catalyzes the deglutamylation of polyglutamylated proteins. Mutations in this gene result in dominant late-onset Fuchs corneal dystrophy. [provided by RefSeq, Nov 2013]

AGBL1 Gene-Disease associations (from GenCC):

• Fuchs' endothelial dystrophy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• corneal dystrophy, Fuchs endothelial, 8

  Inheritance: AD Classification: LIMITED Submitted by: G2P

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001386094.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	AGBL1	NM_001386094.1	MANE Select	c.3044G>T	p.Cys1015Phe	missense	Exon 22 of 23	NP_001373023.1
	AGBL1	NM_152336.4		c.3107G>T	p.Cys1036Phe	missense	Exon 23 of 25	NP_689549.3

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	AGBL1	ENST00000614907.3	TSL:5 MANE Select	c.3044G>T	p.Cys1015Phe	missense	Exon 22 of 23	ENSP00000490608.2
	AGBL1	ENST00000441037.7	TSL:5	c.3107G>T	p.Cys1036Phe	missense	Exon 23 of 25	ENSP00000413001.3
	AGBL1	ENST00000681381.1		n.203G>T		non_coding_transcript_exon	Exon 2 of 4

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152204 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 42

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152322 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 74488

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 41564

American (AMR) AF: 0.00 AC: 0 AN: 15306

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5174

South Asian (SAS) AF: 0.000207 AC: 1 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10616

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68036

Other (OTH) AF: 0.00 AC: 0 AN: 2116

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.84
BayesDel_addAF	Benign	-0.079	T
BayesDel_noAF	Benign	-0.35
CADD	Pathogenic	28
DANN	Uncertain	0.99
DEOGEN2	Benign	0.21	T
Eigen	Uncertain	0.65
Eigen_PC	Pathogenic	0.67
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.97	D
M_CAP	Pathogenic	0.32	D
MetaRNN	Uncertain	0.72	D
MetaSVM	Benign	-0.97	T
MutationAssessor	Benign	1.4	L
PhyloP100		5.9
PrimateAI	Uncertain	0.55	T
Polyphen		1.0	D
MutPred		0.67		Loss of catalytic residue at M988 (P = 0.0389)
MVP		0.37
MPC		0.061
ClinPred		1.0	D
GERP RS		5.5
Varity_R		0.43
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

Other links and lift over

dbSNP: rs181958589; hg19: chr15-87217553; COSMIC: COSV66851076;