rs765417912

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001134888.3(RTL1):​c.3724C>T​(p.Arg1242Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000268 in 1,602,876 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 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000028 ( 0 hom. )

Consequence

RTL1
NM_001134888.3 missense

Scores

3
3
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.986
Variant links:
Genes affected
RTL1 (HGNC:14665): (retrotransposon Gag like 1) This gene is a retrotransposon-derived, paternally expressed imprinted gene that is highly expressed at the late fetal stage in both the fetus and placenta. It has an overlapping maternally expressed antisense transcript, which contains several microRNAs targeting the transcripts of this gene through an RNA interference (RNAi) mechanism. This gene is essential for maintenance of the fetal capillaries. [provided by RefSeq, Jul 2009]
MIR431 (HGNC:32027): (microRNA 431) microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products. The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. The RefSeq represents the predicted microRNA stem-loop. [provided by RefSeq, Sep 2009]
MIR493HG (HGNC:55978): (MIR493 cluster host gene)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.26797602).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RTL1NM_001134888.3 linkc.3724C>T p.Arg1242Cys missense_variant Exon 4 of 4 ENST00000649591.1 NP_001128360.1 A6NKG5B9EK54

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RTL1ENST00000649591.1 linkc.3724C>T p.Arg1242Cys missense_variant Exon 4 of 4 NM_001134888.3 ENSP00000497482.1 A6NKG5
MIR431ENST00000385266.1 linkn.59G>A non_coding_transcript_exon_variant Exon 1 of 1 6
MIR493HGENST00000637474.1 linkn.109-8584G>A intron_variant Intron 2 of 18 5

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152176
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000430
AC:
10
AN:
232338
Hom.:
0
AF XY:
0.0000556
AC XY:
7
AN XY:
125954
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000121
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000705
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000387
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000283
AC:
41
AN:
1450700
Hom.:
0
Cov.:
88
AF XY:
0.0000333
AC XY:
24
AN XY:
720580
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000916
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000356
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000280
Gnomad4 OTH exome
AF:
0.0000333
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152176
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74346
show subpopulations
Gnomad4 AFR
AF:
0.00
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
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.00000831
AC:
1
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Aug 15, 2023
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.3724C>T (p.R1242C) alteration is located in exon 1 (coding exon 1) of the RTL1 gene. This alteration results from a C to T substitution at nucleotide position 3724, causing the arginine (R) at amino acid position 1242 to be replaced by a cysteine (C). 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
0.29
BayesDel_addAF
Benign
-0.25
T
BayesDel_noAF
Benign
-0.37
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Benign
0.21
T;T
Eigen
Uncertain
0.26
Eigen_PC
Benign
0.22
FATHMM_MKL
Benign
0.62
D
LIST_S2
Benign
0.72
.;T
M_CAP
Uncertain
0.096
D
MetaRNN
Benign
0.27
T;T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
1.7
L;L
PrimateAI
Pathogenic
0.86
D
PROVEAN
Benign
-2.2
.;N
REVEL
Benign
0.21
Sift
Pathogenic
0.0
.;D
Sift4G
Pathogenic
0.0
.;D
Vest4
0.70
MutPred
0.48
Loss of disorder (P = 0.0496);Loss of disorder (P = 0.0496);
MVP
0.45
MPC
1.8
ClinPred
0.44
T
GERP RS
2.5
Varity_R
0.27
gMVP
0.36

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: rs765417912; hg19: chr14-101347402; COSMIC: COSV66017009; COSMIC: COSV66017009; API