Variant 8-143429814-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_201589.4(MAFA):c.593C>A(p.Ala198Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000199 in 150,720 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

MAFA
NM_201589.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.191

Variant links:

Genes affected

MAFA (HGNC:23145): (MAF bZIP transcription factor A) MAFA is a transcription factor that binds RIPE3b, a conserved enhancer element that regulates pancreatic beta cell-specific expression of the insulin gene (INS; MIM 176730) (Olbrot et al., 2002 [PubMed 12011435]).[supplied by OMIM, Mar 2008]

MAFA links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.13459852).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MAFA	NM_201589.4 link	c.593C>A	p.Ala198Asp	missense_variant	1/1	ENST00000333480.3	NP_963883.2	Q8NHW3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MAFA	ENST00000333480.3 link	c.593C>A	p.Ala198Asp	missense_variant	1/1	6	NM_201589.4	ENSP00000328364.2		Q8NHW3
MAFA	ENST00000528185.1 link	n.85C>A		non_coding_transcript_exon_variant	1/2	3

Frequencies

GnomAD3 genomes

AF:

0.0000199

AC:

AN:

150720

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000731

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1332812

Hom.:

Cov.:

107

AF XY:

0.00

AC XY:

AN XY:

655580

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000199

AC:

AN:

150720

Hom.:

Cov.:

AF XY:

0.0000136

AC XY:

AN XY:

73554

show subpopulations

Gnomad4 AFR

AF:

0.0000731

Gnomad4 AMR

AF:

0.00

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

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 04, 2024

The c.593C>A (p.A198D) alteration is located in exon 1 (coding exon 1) of the MAFA gene. This alteration results from a C to A substitution at nucleotide position 593, causing the alanine (A) at amino acid position 198 to be replaced by an aspartic acid (D). 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

Uncertain

0.35

BayesDel_addAF

Uncertain

0.016

BayesDel_noAF

Benign

-0.21

CADD

Benign

DANN

Benign

0.92

DEOGEN2

Benign

0.15

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.20

LIST_S2

Benign

0.42

M_CAP

Pathogenic

0.81

MetaRNN

Benign

0.13

MetaSVM

Uncertain

0.15

MutationAssessor

Benign

0.0

PrimateAI

Pathogenic

0.84

PROVEAN

Benign

-0.61

REVEL

Benign

0.27

Sift

Benign

0.60

Sift4G

Benign

0.64

Polyphen

0.069

Vest4

0.12

MutPred

0.30

Loss of helix (P = 0.0167);

MVP

0.13

ClinPred

0.043

GERP RS

-3.1

Varity_R

0.23

gMVP

0.26

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