2-86206195-C-T

Variant names:

• chr2-86206195-C-T
• rs778165948
• NM_016622.4:c.133C>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_016622.4(MRPL35):​c.133C>T​(p.Arg45Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,613,536 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000055 (0 hom.)
• Consequence: MRPL35 NM_016622.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.958
• Publications: 0 publications found

Genes affected

MRPL35 (HGNC:14489): (mitochondrial ribosomal protein L35) 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 39S subunit protein. Sequence analysis identified three transcript variants. Pseudogenes corresponding to this gene are found on chromosomes 6p, 10q, and Xp. [provided by RefSeq, Jul 2008]

ACMG classification

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=0.1049411).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016622.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MRPL35	NM_016622.4	MANE Select	c.133C>T	p.Arg45Cys	missense	Exon 2 of 4	NP_057706.2
	MRPL35	NM_001363782.1		c.133C>T	p.Arg45Cys	missense	Exon 2 of 5	NP_001350711.1	D3YTC1
	MRPL35	NM_145644.3		c.133C>T	p.Arg45Cys	missense	Exon 2 of 5	NP_663619.1	Q9NZE8-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MRPL35	ENST00000337109.9	TSL:1 MANE Select	c.133C>T	p.Arg45Cys	missense	Exon 2 of 4	ENSP00000338389.4	Q9NZE8-1
	MRPL35	ENST00000254644.12	TSL:1	c.133C>T	p.Arg45Cys	missense	Exon 2 of 5	ENSP00000254644.7	Q9NZE8-2
	MRPL35	ENST00000409180.1	TSL:3	c.133C>T	p.Arg45Cys	missense	Exon 2 of 5	ENSP00000386255.1	D3YTC1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152196 Hom.: 0 Cov.: 32

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000119 AC: 3 AN: 251264 AF XY: 0.0000147

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 FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000881

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000547 AC: 8 AN: 1461340 Hom.: 0 Cov.: 33 AF XY: 0.00000550 AC XY: 4 AN XY: 727022

African (AFR) AF: 0.00 AC: 0 AN: 33470

American (AMR) AF: 0.00 AC: 0 AN: 44716

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26126

East Asian (EAS) AF: 0.00 AC: 0 AN: 39696

South Asian (SAS) AF: 0.0000464 AC: 4 AN: 86236

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 0.00000270 AC: 3 AN: 1111546

Other (OTH) AF: 0.0000166 AC: 1 AN: 60366

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152196 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74344

African (AFR) AF: 0.00 AC: 0 AN: 41444

American (AMR) AF: 0.00 AC: 0 AN: 15288

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5200

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

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: 0.0000147 AC: 1 AN: 68030

Other (OTH) AF: 0.00 AC: 0 AN: 2094

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ExAC AF: 0.00000824 AC: 1

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.079
BayesDel_addAF	Benign	-0.35	T
BayesDel_noAF	Benign	-0.56
CADD	Benign	18
DANN	Benign	0.96
DEOGEN2	Benign	0.0011	T
Eigen	Benign	-0.30
Eigen_PC	Benign	-0.34
FATHMM_MKL	Benign	0.071	N
LIST_S2	Benign	0.80	T
M_CAP	Benign	0.0070	T
MetaRNN	Benign	0.10	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.69	N
PhyloP100		0.96
PrimateAI	Benign	0.20	T
PROVEAN	Benign	-0.28	N
REVEL	Benign	0.11
Sift	Benign	0.17	T
Sift4G	Benign	0.15	T
Polyphen		0.98	D
Vest4		0.13
MutPred		0.36		Loss of methylation at R45 (P = 0.0262)
MVP		0.22
MPC		0.19
ClinPred		0.22	T
GERP RS		4.6
Varity_R		0.071
gMVP		0.28
Mutation Taster		=85/15	polymorphism

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

Other links and lift over

dbSNP: rs778165948; hg19: chr2-86433318; COSMIC: COSV54491887;