Genetic Variant MAF:p.Thr58Ser (chr16-79599731-T-A) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 7P and 1B. PM1PM2PM5PP2BP4

The NM_005360.5(MAF):c.172A>T(p.Thr58Ser) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 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. T58A) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 30)

Consequence

MAF
NM_005360.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.13

Publications

0 publications found

Variant links:

Genes affected

MAF (HGNC:6776): (MAF bZIP transcription factor) The protein encoded by this gene is a DNA-binding, leucine zipper-containing transcription factor that acts as a homodimer or as a heterodimer. Depending on the binding site and binding partner, the encoded protein can be a transcriptional activator or repressor. This protein plays a role in the regulation of several cellular processes, including embryonic lens fiber cell development, increased T-cell susceptibility to apoptosis, and chondrocyte terminal differentiation. Defects in this gene are a cause of juvenile-onset pulverulent cataract as well as congenital cerulean cataract 4 (CCA4). Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2010]

MAF Gene-Disease associations (from GenCC):

Ayme-Gripp syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
cataract 21 multiple types
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Ambry Genetics
cataract - microcornea syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
cerulean cataract
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
pulverulent cataract
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Fine-Lubinsky syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

MAF links:

ENSG00000278058 (HGNC:):

ENSG00000278058 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM1

In a hotspot region, there are 8 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 3 uncertain in NM_005360.5

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr16-79599731-T-C is described in ClinVar as Pathogenic. ClinVar VariationId is 162513.Status of the report is no_assertion_criteria_provided, 0 stars.

PP2

Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 22 curated pathogenic missense variants (we use a threshold of 10). The gene has 7 curated benign missense variants. Gene score misZ: 1.1779 (below the threshold of 3.09). Trascript score misZ: -0.24854 (below the threshold of 3.09). GenCC associations: The gene is linked to cerulean cataract, Fine-Lubinsky syndrome, cataract 21 multiple types, Ayme-Gripp syndrome, pulverulent cataract, cataract - microcornea syndrome.

BP4

Computational evidence support a benign effect (MetaRNN=0.42325094).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MAF	NM_005360.5 link	c.172A>T	p.Thr58Ser	missense_variant	Exon 1 of 2	ENST00000326043.5	NP_005351.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MAF	ENST00000326043.5 link	c.172A>T	p.Thr58Ser	missense_variant	Exon 1 of 2	1	NM_005360.5	ENSP00000327048.4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.86

BayesDel_addAF

Uncertain

0.11

BayesDel_noAF

Uncertain

-0.080

CADD

Pathogenic

(source)

DANN

Benign

0.95

DEOGEN2

Benign

0.0

.;.;T

Eigen

Uncertain

0.20

Eigen_PC

Benign

0.19

FATHMM_MKL

Uncertain

0.85

LIST_S2

Benign

0.78

T;T;T

M_CAP

Pathogenic

0.92

MetaRNN

Benign

0.42

T;T;T

MetaSVM

Uncertain

0.75

MutationAssessor

Benign

0.0

.;L;L

PhyloP100

7.1

PrimateAI

Pathogenic

0.95

PROVEAN

Benign

-1.8

N;N;N

REVEL

Benign

0.0

Sift

Benign

0.15

T;T;T

Sift4G

Benign

0.23

T;T;T

Vest4

0.43

ClinPred

0.84

GERP RS

2.9

PromoterAI

0.049

Neutral

(source)

Varity_R

0.30

gMVP

0.73

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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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over