NM_014050.4:c.397C>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_014050.4(MRPL42):​c.397C>T​(p.Arg133Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000844 in 1,599,272 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000088 ( 0 hom. )

Consequence

MRPL42
NM_014050.4 missense

Scores

2
6
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.22

Publications

0 publications found
Variant links:
Genes affected
MRPL42 (HGNC:14493): (mitochondrial ribosomal protein L42) Mammalian mitochondrial ribosomal proteins are encoded by nuclear genes and help in protein synthesis within the mitochondrion. Mitochondrial ribosomes (mitoribosomes) consist of a small 28S subunit and a large 39S subunit. They have an estimated 75% protein to rRNA composition compared to prokaryotic ribosomes, where this ratio is reversed. Another difference between mammalian mitoribosomes and prokaryotic ribosomes is that the latter contain a 5S rRNA. Among different species, the proteins comprising the mitoribosome differ greatly in sequence, and sometimes in biochemical properties, which prevents easy recognition by sequence homology. This gene encodes a protein identified as belonging to both the 28S and the 39S subunits. Alternative splicing results in multiple transcript variants. Pseudogenes corresponding to this gene are found on chromosomes 4q, 6p, 6q, 7p, and 15q. [provided by RefSeq, May 2011]
SOCS2-AS1 (HGNC:27054): (SOCS2 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.23512563).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014050.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MRPL42
NM_014050.4
MANE Select
c.397C>Tp.Arg133Cys
missense
Exon 6 of 6NP_054769.1Q9Y6G3
MRPL42
NM_172177.5
c.397C>Tp.Arg133Cys
missense
Exon 6 of 6NP_751917.1Q9Y6G3
MRPL42
NR_038159.2
n.555C>T
non_coding_transcript_exon
Exon 7 of 7

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MRPL42
ENST00000549982.6
TSL:1 MANE Select
c.397C>Tp.Arg133Cys
missense
Exon 6 of 6ENSP00000449884.1Q9Y6G3
MRPL42
ENST00000358678.7
TSL:1
n.*346C>T
non_coding_transcript_exon
Exon 7 of 7ENSP00000351506.3J3KP21
MRPL42
ENST00000358678.7
TSL:1
n.*346C>T
3_prime_UTR
Exon 7 of 7ENSP00000351506.3J3KP21

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152032
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000656
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:
0.000103
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000582
AC:
14
AN:
240584
AF XY:
0.0000614
show subpopulations
Gnomad AFR exome
AF:
0.0000640
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000993
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000878
AC:
127
AN:
1447240
Hom.:
0
Cov.:
29
AF XY:
0.0000973
AC XY:
70
AN XY:
719650
show subpopulations
African (AFR)
AF:
0.0000306
AC:
1
AN:
32628
American (AMR)
AF:
0.00
AC:
0
AN:
42138
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25930
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39058
South Asian (SAS)
AF:
0.0000362
AC:
3
AN:
82972
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53218
Middle Eastern (MID)
AF:
0.000213
AC:
1
AN:
4690
European-Non Finnish (NFE)
AF:
0.000108
AC:
119
AN:
1106842
Other (OTH)
AF:
0.0000502
AC:
3
AN:
59764
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.448
Heterozygous variant carriers
0
6
12
18
24
30
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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
AF:
0.0000526
AC:
8
AN:
152032
Hom.:
0
Cov.:
33
AF XY:
0.0000539
AC XY:
4
AN XY:
74230
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41400
American (AMR)
AF:
0.0000656
AC:
1
AN:
15244
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10566
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000103
AC:
7
AN:
68012
Other (OTH)
AF:
0.00
AC:
0
AN:
2086
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.556
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000675
Hom.:
0
Bravo
AF:
0.0000227
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000577
AC:
7

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Uncertain
0.090
D
BayesDel_noAF
Uncertain
0.090
CADD
Benign
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.22
T
Eigen
Benign
0.091
Eigen_PC
Benign
0.15
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Benign
0.77
T
M_CAP
Benign
0.016
T
MetaRNN
Benign
0.24
T
MetaSVM
Benign
-0.42
T
MutationAssessor
Uncertain
2.1
M
PhyloP100
3.2
PrimateAI
Uncertain
0.51
T
PROVEAN
Pathogenic
-4.9
D
REVEL
Benign
0.27
Sift
Benign
0.030
D
Sift4G
Pathogenic
0.0
D
Polyphen
0.10
B
Vest4
0.42
MVP
0.30
MPC
0.13
ClinPred
0.39
T
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.63
gMVP
0.21
Mutation Taster
=51/49
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.12
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs138606792; hg19: chr12-93894965; COSMIC: COSV62356812; API