rs74992920

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_014161.5(MRPL18):​c.470C>T​(p.Ser157Leu) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000992 in 1,613,006 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

MRPL18
NM_014161.5 missense, splice_region

Scores

6
12
Splicing: ADA: 0.3917
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.05

Publications

0 publications found
Variant links:
Genes affected
MRPL18 (HGNC:14477): (mitochondrial ribosomal protein L18) This nuclear gene encodes a protein component of the larger 39S subunit of mitochondrial ribosome. This protein may also aid in the import of nuclear-encoded 5S rRNA into mitochondria. Alternative splicing results in multiple transcript variants, most of which are not predicted to encode a protein. A pseudogene of this gene is found on chromosome 16. [provided by RefSeq, Jan 2016]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.29119742).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014161.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MRPL18
NM_014161.5
MANE Select
c.470C>Tp.Ser157Leu
missense splice_region
Exon 3 of 4NP_054880.2
MRPL18
NM_001318817.2
c.322+148C>T
intron
N/ANP_001305746.1
MRPL18
NR_134860.1
n.732C>T
splice_region non_coding_transcript_exon
Exon 4 of 5

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MRPL18
ENST00000367034.5
TSL:1 MANE Select
c.470C>Tp.Ser157Leu
missense splice_region
Exon 3 of 4ENSP00000356001.4Q9H0U6
MRPL18
ENST00000953331.1
c.497C>Tp.Ser166Leu
missense splice_region
Exon 3 of 4ENSP00000623390.1
MRPL18
ENST00000857674.1
c.300+170C>T
intron
N/AENSP00000527733.1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152154
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000120
AC:
3
AN:
250770
AF XY:
0.00000737
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000579
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000890
AC:
13
AN:
1460852
Hom.:
0
Cov.:
31
AF XY:
0.00000963
AC XY:
7
AN XY:
726628
show subpopulations
African (AFR)
AF:
0.0000598
AC:
2
AN:
33468
American (AMR)
AF:
0.0000671
AC:
3
AN:
44714
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26122
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39684
South Asian (SAS)
AF:
0.0000580
AC:
5
AN:
86244
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53174
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.00000180
AC:
2
AN:
1111316
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60364
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.456
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152154
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74318
show subpopulations
African (AFR)
AF:
0.0000483
AC:
2
AN:
41432
American (AMR)
AF:
0.0000655
AC:
1
AN:
15266
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10608
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68040
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.00
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.0000247
AC:
3

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
0.26
BayesDel_addAF
Benign
-0.082
T
BayesDel_noAF
Benign
-0.18
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Benign
0.14
T
Eigen
Uncertain
0.47
Eigen_PC
Uncertain
0.42
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Benign
0.86
D
M_CAP
Benign
0.021
T
MetaRNN
Benign
0.29
T
MetaSVM
Benign
-0.79
T
MutationAssessor
Uncertain
2.1
M
PhyloP100
3.0
PrimateAI
Benign
0.43
T
PROVEAN
Uncertain
-2.6
D
REVEL
Benign
0.18
Sift
Benign
0.11
T
Sift4G
Benign
0.23
T
Polyphen
0.99
D
Vest4
0.44
MutPred
0.34
Loss of disorder (P = 0.0134)
MVP
0.58
MPC
0.58
ClinPred
0.93
D
GERP RS
4.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.57
gMVP
0.64
Mutation Taster
=30/70
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.39
dbscSNV1_RF
Benign
0.50
SpliceAI score (max)
0.25
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.25
Position offset: 1

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

Publications

Other links and lift over

dbSNP: rs74992920; hg19: chr6-160218549; COSMIC: COSV105109020; COSMIC: COSV105109020; API