13-35475922-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate

The NM_005584.5(MAB21L1):​c.217G>A​(p.Glu73Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000821 in 1,461,884 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

MAB21L1
NM_005584.5 missense

Scores

4
10
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.91
Variant links:
Genes affected
MAB21L1 (HGNC:6757): (mab-21 like 1) This gene is similar to the MAB-21 cell fate-determining gene found in C. elegans. It may be involved in eye and cerebellum development, and it has been proposed that expansion of a trinucleotide repeat region in the 5' UTR may play a role in a variety of psychiatric disorders. [provided by RefSeq, Oct 2008]
NBEA (HGNC:7648): (neurobeachin) This gene encodes a member of a large, diverse group of A-kinase anchor proteins that target the activity of protein kinase A to specific subcellular sites by binding to its type II regulatory subunits. Brain-specific expression and coat protein-like membrane recruitment of a highly similar protein in mouse suggest an involvement in neuronal post-Golgi membrane traffic. Mutations in this gene may be associated with a form of autism. This gene and its expression are frequently disrupted in patients with multiple myeloma. Alternative splicing results in multiple transcript variants encoding distinct isoforms. Additional transcript variants may exist, but their full-length nature has not been determined.[provided by RefSeq, Feb 2011]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM1
In a binding_site (size 0) in uniprot entity MB211_HUMAN
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.86

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MAB21L1NM_005584.5 linkuse as main transcriptc.217G>A p.Glu73Lys missense_variant 1/1 ENST00000379919.6 NP_005575.1
NBEANM_001385012.1 linkuse as main transcriptc.6585+3386C>T intron_variant ENST00000379939.7 NP_001371941.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MAB21L1ENST00000379919.6 linkuse as main transcriptc.217G>A p.Glu73Lys missense_variant 1/1 NM_005584.5 ENSP00000369251 P1
NBEAENST00000379939.7 linkuse as main transcriptc.6585+3386C>T intron_variant 5 NM_001385012.1 ENSP00000369271

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.00000795
AC:
2
AN:
251490
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135918
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000821
AC:
12
AN:
1461884
Hom.:
0
Cov.:
32
AF XY:
0.0000138
AC XY:
10
AN XY:
727242
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000128
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 13, 2023The c.217G>A (p.E73K) alteration is located in exon 1 (coding exon 1) of the MAB21L1 gene. This alteration results from a G to A substitution at nucleotide position 217, causing the glutamic acid (E) at amino acid position 73 to be replaced by a lysine (K). 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
Pathogenic
0.83
BayesDel_addAF
Uncertain
0.10
D
BayesDel_noAF
Uncertain
0.090
CADD
Pathogenic
33
DANN
Uncertain
1.0
DEOGEN2
Benign
0.37
T
Eigen
Pathogenic
0.74
Eigen_PC
Pathogenic
0.76
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.97
D
M_CAP
Benign
0.034
D
MetaRNN
Pathogenic
0.86
D
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.5
M
MutationTaster
Benign
1.0
D;D;D;D;D
PROVEAN
Uncertain
-2.4
N
REVEL
Uncertain
0.49
Sift
Uncertain
0.0080
D
Sift4G
Uncertain
0.042
D
Polyphen
0.91
P
Vest4
0.87
MutPred
0.77
Gain of methylation at E73 (P = 0.0118);
MVP
0.55
MPC
1.5
ClinPred
0.91
D
GERP RS
5.7
Varity_R
0.71
gMVP
0.91

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: rs764024059; hg19: chr13-36050059; COSMIC: COSV59771328; COSMIC: COSV59771328; API