Genetic Variant MAF:p.Pro98Arg (chr16-79599610-G-C) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP2

The NM_005360.5(MAF):c.293C>G(p.Pro98Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000206 in 1,458,202 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. P98Q) has been classified as Benign.

Frequency

Genomes: not found (cov: 30)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

MAF
NM_005360.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.77

Publications

1 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: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

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.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MAF	NM_005360.5 link	c.293C>G	p.Pro98Arg	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.293C>G	p.Pro98Arg	missense_variant	Exon 1 of 2	1	NM_005360.5	ENSP00000327048.4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000206

AC:

AN:

1458202

Hom.:

Cov.:

AF XY:

0.00000276

AC XY:

AN XY:

725196

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33450

American (AMR)

AF:

0.00

AC:

AN:

44460

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26024

East Asian (EAS)

AF:

0.00

AC:

AN:

39606

South Asian (SAS)

AF:

0.0000117

AC:

AN:

85714

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51906

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5756

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1111054

Other (OTH)

AF:

0.00

AC:

AN:

60232

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.64

BayesDel_addAF

Uncertain

0.014

BayesDel_noAF

Benign

-0.22

CADD

Uncertain

(source)

DANN

Benign

0.90

DEOGEN2

Benign

0.0

.;.;T

Eigen

Benign

0.18

Eigen_PC

Benign

0.18

FATHMM_MKL

Benign

0.71

LIST_S2

Uncertain

0.87

D;D;D

M_CAP

Pathogenic

0.86

MetaRNN

Uncertain

0.49

T;T;T

MetaSVM

Benign

-0.39

MutationAssessor

Benign

0.0

.;L;L

PhyloP100

1.8

PrimateAI

Pathogenic

0.89

PROVEAN

Benign

-1.5

N;N;N

REVEL

Benign

0.0

Sift

Benign

0.43

T;T;T

Sift4G

Benign

0.37

T;T;T

Vest4

0.33

ClinPred

0.49

GERP RS

3.8

PromoterAI

0.018

Neutral

(source)

Varity_R

0.20

gMVP

0.79

Mutation Taster

=76/24

polymorphism

(source)

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over