6-151436526-G-C

Variant names:

• chr6-151436526-G-C
• rs370863743
• NM_017909.4:c.533C>G

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2 PM5 PP3

The NM_017909.4(RMND1):​c.533C>G​(p.Thr178Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,542 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T178K) has been classified as Pathogenic.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: RMND1 NM_017909.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.59
• Publications: 0 publications found

Genes affected

RMND1 (HGNC:21176): (required for meiotic nuclear division 1 homolog) The protein encoded by this gene belongs to the evolutionary conserved sif2 family of proteins that share the DUF155 domain in common. This protein is thought to be localized in the mitochondria and involved in mitochondrial translation. Mutations in this gene are associated with combined oxidative phosphorylation deficiency-11. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Dec 2012]

RMND1 Gene-Disease associations (from GenCC):

• mitochondrial disease

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• combined oxidative phosphorylation defect type 11

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, G2P, Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr6-151436526-G-T is described in ClinVar as Pathogenic. ClinVar VariationId is 225258.Status of the report is no_assertion_criteria_provided, 0 stars.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.777

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017909.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RMND1	NM_017909.4	MANE Select	c.533C>G	p.Thr178Arg	missense	Exon 3 of 12	NP_060379.2
	RMND1	NM_001271937.2		c.23C>G	p.Thr8Arg	missense	Exon 2 of 11	NP_001258866.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RMND1	ENST00000444024.3	TSL:3 MANE Select	c.533C>G	p.Thr178Arg	missense	Exon 3 of 12	ENSP00000412708.2
	RMND1	ENST00000491268.2	TSL:1	c.533C>G	p.Thr178Arg	missense	Exon 3 of 3	ENSP00000494948.1
	RMND1	ENST00000682641.1		c.533C>G	p.Thr178Arg	missense	Exon 3 of 12	ENSP00000506793.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461542 Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1 AN XY: 727076

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26130

East Asian (EAS) AF: 0.00 AC: 0 AN: 39692

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53388

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5754

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111742

Other (OTH) AF: 0.00 AC: 0 AN: 60384

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.96
BayesDel_addAF	Pathogenic	0.33	D
BayesDel_noAF	Pathogenic	0.23
CADD	Pathogenic	27
DANN	Uncertain	0.99
DEOGEN2	Benign	0.33	T
Eigen	Uncertain	0.68
Eigen_PC	Pathogenic	0.68
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Uncertain	0.94	D
M_CAP	Benign	0.047	D
MetaRNN	Pathogenic	0.78	D
MetaSVM	Benign	-0.58	T
MutationAssessor	Benign	1.8	L
PhyloP100		7.6
PrimateAI	Uncertain	0.59	T
PROVEAN	Pathogenic	-5.2	D
REVEL	Uncertain	0.57
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.0020	D
Polyphen		1.0	D
Vest4		0.97
MutPred		0.58		Gain of solvent accessibility (P = 0.0171)
MVP		0.30
MPC		0.86
ClinPred		1.0	D
GERP RS		6.0
Varity_R		0.87
gMVP		0.90
Mutation Taster		=22/78	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.14		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: rs370863743; hg19: chr6-151757661;