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GeneBe

7-23299440-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_138446.2(MALSU1):c.88G>A(p.Ala30Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000015 in 1,605,328 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 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. A30P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

MALSU1
NM_138446.2 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.835
Variant links:
Genes affected
MALSU1 (HGNC:21721): (mitochondrial assembly of ribosomal large subunit 1) Predicted to enable ribosomal large subunit binding activity. Involved in negative regulation of mitochondrial translation and ribosomal large subunit biogenesis. Located in cytosol and mitochondrion. Colocalizes with mitochondrial large ribosomal subunit. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.047331423).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MALSU1NM_138446.2 linkuse as main transcriptc.88G>A p.Ala30Thr missense_variant 1/4 ENST00000466681.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MALSU1ENST00000466681.2 linkuse as main transcriptc.88G>A p.Ala30Thr missense_variant 1/41 NM_138446.2 P1
MALSU1ENST00000287543.4 linkuse as main transcriptn.102G>A non_coding_transcript_exon_variant 1/32
MALSU1ENST00000481564.1 linkuse as main transcriptn.100G>A non_coding_transcript_exon_variant 1/22
MALSU1ENST00000479974.1 linkuse as main transcriptn.411+291G>A intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152262
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000175
AC:
4
AN:
229192
Hom.:
0
AF XY:
0.0000158
AC XY:
2
AN XY:
126638
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000392
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000138
AC:
20
AN:
1453066
Hom.:
0
Cov.:
31
AF XY:
0.0000138
AC XY:
10
AN XY:
722974
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000162
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152262
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74386
show subpopulations
Gnomad4 AFR
AF:
0.0000482
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:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000264
ExAC
AF:
0.0000167
AC:
2
EpiCase
AF:
0.000109
EpiControl
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 submitterclinical testingAmbry GeneticsOct 02, 2023The c.88G>A (p.A30T) alteration is located in exon 1 (coding exon 1) of the MALSU1 gene. This alteration results from a G to A substitution at nucleotide position 88, causing the alanine (A) at amino acid position 30 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
0.079
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.75
Cadd
Benign
0.43
Dann
Benign
0.95
DEOGEN2
Benign
0.014
T
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.6
FATHMM_MKL
Benign
0.065
N
LIST_S2
Benign
0.34
T
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.047
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.46
N
MutationTaster
Benign
1.0
N
PrimateAI
Uncertain
0.53
T
PROVEAN
Benign
0.10
N
REVEL
Benign
0.020
Sift
Uncertain
0.020
D
Sift4G
Uncertain
0.046
D
Polyphen
0.0
B
Vest4
0.071
MutPred
0.14
Gain of glycosylation at A30 (P = 0.0626);
MVP
0.15
MPC
0.061
ClinPred
0.037
T
GERP RS
-3.0
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.1
Varity_R
0.050
gMVP
0.28

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: rs374799777; hg19: chr7-23339059; API