chr7-55953299-T-G

Position:

chr7-55953299-T-G

Variant summary

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

The NM_015969.3(MRPS17):c.104T>G(p.Leu35Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000985 in 1,613,846 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000097 ( 1 hom. )

Consequence

MRPS17
NM_015969.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.55

Variant links:

Genes affected

MRPS17 (HGNC:14047): (mitochondrial ribosomal protein S17) 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 28S subunit protein that belongs to the ribosomal protein S17P family. The encoded protein is moderately conserved between human mitochondrial and prokaryotic ribosomal proteins. Pseudogenes corresponding to this gene are found on chromosomes 1p, 3p, 6q, 14p, 18q, and Xq. [provided by RefSeq, Jul 2008]

MRPS17 links:

ENSG00000249773 (HGNC:):

ENSG00000249773 links:

NIPSNAP2 (HGNC:4179): (nipsnap homolog 2) This gene encodes a member of the NipSnap family of proteins that may be involved in vesicular transport. The encoded protein is localized to mitochondria and plays a role in oxidative phosphorylation. A pseudogene of this gene is located on the long arm of chromosome 2. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Feb 2011]

NIPSNAP2 links:

Genome browser will be placed here

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=0.032083094).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MRPS17	NM_015969.3 link	c.104T>G	p.Leu35Arg	missense_variant	2/3	ENST00000285298.9	NP_057053.1	Q9Y2R5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
MRPS17	ENST00000285298.9 link	c.104T>G	p.Leu35Arg	missense_variant	2/3	1	NM_015969.3	ENSP00000285298.4	Q9Y2R5
ENSG00000249773	ENST00000426595.1 link	c.389T>G	p.Leu130Arg	missense_variant	7/8	5		ENSP00000390331.1	I3L0E3
MRPS17	ENST00000443449.1 link	c.104T>G	p.Leu35Arg	missense_variant	2/3	2		ENSP00000401349.1	E9PE17
NIPSNAP2	ENST00000446692.5 link	c.-329+1369T>G		intron_variant		4		ENSP00000406336.1	C9J7B1

Frequencies

GnomAD3 genomes

AF:

0.000112

AC:

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00403

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000227

AC:

AN:

250930

Hom.:

AF XY:

0.000221

AC XY:

AN XY:

135606

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000291

Gnomad ASJ exome

AF:

0.00457

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000704

Gnomad OTH exome

AF:

0.000327

GnomAD4 exome

AF:

0.0000972

AC:

142

AN:

1461644

Hom.:

Cov.:

AF XY:

0.000102

AC XY:

AN XY:

727112

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00310

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000306

Gnomad4 OTH exome

AF:

0.000431

GnomAD4 genome

AF:

0.000112

AC:

AN:

152202

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74352

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00403

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000241

Hom.:

Bravo

AF:

0.000132

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.000165

AC:

EpiCase

AF:

0.000383

EpiControl

AF:

0.000178

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 submitter

clinical testing

Ambry Genetics

Oct 18, 2021

The c.104T>G (p.L35R) alteration is located in exon 2 (coding exon 1) of the MRPS17 gene. This alteration results from a T to G substitution at nucleotide position 104, causing the leucine (L) at amino acid position 35 to be replaced by an arginine (R). 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

Uncertain

0.41

BayesDel_addAF

Uncertain

0.095

BayesDel_noAF

Uncertain

0.090

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.18

.;T;.

Eigen

Uncertain

0.59

Eigen_PC

Uncertain

0.61

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.88

D;D;D

M_CAP

Uncertain

0.086

MetaRNN

Benign

0.032

T;T;T

MetaSVM

Benign

-0.64

MutationAssessor

Benign

0.82

.;L;.

PrimateAI

Pathogenic

0.84

PROVEAN

Benign

-2.1

N;D;D

REVEL

Uncertain

0.42

Sift

Uncertain

0.0010

D;D;D

Sift4G

Benign

0.10

T;D;D

Polyphen

1.0

.;D;.

Vest4

0.77

MVP

0.33

MPC

0.25

ClinPred

0.26

GERP RS

5.0

Varity_R

0.95

gMVP

0.74

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over