16-29807227-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_ModerateBS2

The ENST00000322945.11(MAZ):​c.442G>A​(p.Ala148Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000431 in 1,160,690 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict 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. A148S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000043 ( 0 hom. )

Consequence

MAZ
ENST00000322945.11 missense

Scores

1
2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.368
Variant links:
Genes affected
MAZ (HGNC:6914): (MYC associated zinc finger protein) Enables DNA-binding transcription factor activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Involved in several processes, including regulation of gene expression; regulation of signal transduction; and transcription by RNA polymerase II. Predicted to be located in cytoplasm and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.13238496).
BS2
High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MAZNM_002383.4 linkuse as main transcriptc.442G>A p.Ala148Thr missense_variant 2/5 ENST00000322945.11 NP_002374.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MAZENST00000322945.11 linkuse as main transcriptc.442G>A p.Ala148Thr missense_variant 2/51 NM_002383.4 ENSP00000313362 P56270-1
ENST00000566537.1 linkuse as main transcriptn.502+4C>T splice_donor_region_variant, intron_variant, non_coding_transcript_variant 4

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
AF:
0.00000431
AC:
5
AN:
1160690
Hom.:
0
Cov.:
25
AF XY:
0.00000355
AC XY:
2
AN XY:
563028
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000374
Gnomad4 SAS exome
AF:
0.0000544
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000208
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31
Bravo
AF:
0.00000378

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 submitterclinical testingAmbry GeneticsJan 17, 2024The c.442G>A (p.A148T) alteration is located in exon 2 (coding exon 2) of the MAZ gene. This alteration results from a G to A substitution at nucleotide position 442, causing the alanine (A) at amino acid position 148 to be replaced by a threonine (T). 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
Benign
0.11
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.64
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.10
.;T;.
Eigen
Benign
-0.49
Eigen_PC
Benign
-0.50
FATHMM_MKL
Benign
0.45
N
LIST_S2
Benign
0.72
T;T;T
M_CAP
Uncertain
0.27
D
MetaRNN
Benign
0.13
T;T;T
MetaSVM
Benign
-0.88
T
MutationAssessor
Benign
0.0
.;N;N
MutationTaster
Benign
0.70
D;D;D;D;D;D
PrimateAI
Pathogenic
0.89
D
PROVEAN
Benign
-0.27
N;N;N
REVEL
Benign
0.055
Sift
Benign
0.13
T;T;T
Sift4G
Benign
0.53
T;T;T
Polyphen
0.96
.;D;.
Vest4
0.13
MutPred
0.31
.;Gain of glycosylation at A148 (P = 9e-04);Gain of glycosylation at A148 (P = 9e-04);
MVP
0.27
MPC
1.0
ClinPred
0.19
T
GERP RS
2.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.081
gMVP
0.31

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.

Other links and lift over

dbSNP: rs1369324219; hg19: chr16-29818548; API