5-131171208-TTG-T

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP6_Moderate BA1

The NM_181705.4(LYRM7):c.18+173_18+174del variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.18 in 151,846 control chromosomes in the GnomAD database, including 6,231 homozygotes. Variant has been reported in ClinVar as Benign (★).

• Frequency: Genomes: 𝑓 0.18 (6231 hom., cov: 30)
• Consequence: LYRM7 NM_181705.4 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.356

Genes affected

LYRM7 (HGNC:28072): (LYR motif containing 7) Inner mitochondrial membrane complex III (CIII) is the main enzyme complex in the mitochondrial respiratory chain, and Rieske Fe-S protein (UQCRFS1) is the last catalytic subunit added to the complex. The protein encoded by this gene is a nuclear-encoded mitochondrial matrix protein that stabilizes UQCRFS1 and chaperones it to the CIII complex. Defects in this gene are a cause of mitochondrial complex III deficiency, nuclear type 8. Three transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Jun 2014]

HINT1 (HGNC:4912): (histidine triad nucleotide binding protein 1) This gene encodes a protein that hydrolyzes purine nucleotide phosphoramidates substrates, including AMP-morpholidate, AMP-N-alanine methyl ester, AMP-alpha-acetyl lysine methyl ester, and AMP-NH2. The encoded protein interacts with these substrates via a histidine triad motif. This gene is considered a tumor suppressor gene. In addition, mutations in this gene can cause autosomal recessive neuromyotonia and axonal neuropathy. There are several related pseudogenes on chromosome 7. Several transcript variants have been observed. [provided by RefSeq, Dec 2015]

ACMG classification

Verdict is Benign. Variant got -10 ACMG points.

• BP6: Variant 5-131171208-TTG-T is Benign according to our data. Variant chr5-131171208-TTG-T is described in ClinVar as [Benign]. Clinvar id is 1252214.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.531 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LYRM7	NM_181705.4	c.18+173_18+174del		intron_variant		ENST00000379380.9
LYRM7	NM_001293735.2	c.18+173_18+174del		intron_variant
LYRM7	NR_121658.2	n.95+173_95+174del		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LYRM7	ENST00000379380.9	c.18+173_18+174del		intron_variant		1	NM_181705.4	P1
LYRM7	ENST00000507584.1	c.18+173_18+174del		intron_variant		2
LYRM7	ENST00000510516.5	c.18+173_18+174del		intron_variant		2
HINT1	ENST00000506207.2	n.236+396_236+397del		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes AF: 0.180 AC: 27281 AN: 151728 Hom.: 6215 Cov.: 30

Gnomad AFR AF: 0.537

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0921

Gnomad ASJ AF: 0.111

Gnomad EAS AF: 0.000965

Gnomad SAS AF: 0.0484

Gnomad FIN AF: 0.00916

Gnomad MID AF: 0.175

Gnomad NFE AF: 0.0391

Gnomad OTH AF: 0.160

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.180 AC: 27334 AN: 151846 Hom.: 6231 Cov.: 30 AF XY: 0.174 AC XY: 12944 AN XY: 74266

Gnomad4 AFR AF: 0.537

Gnomad4 AMR AF: 0.0919

Gnomad4 ASJ AF: 0.111

Gnomad4 EAS AF: 0.000967

Gnomad4 SAS AF: 0.0485

Gnomad4 FIN AF: 0.00916

Gnomad4 NFE AF: 0.0391

Gnomad4 OTH AF: 0.158

Alfa AF: 0.122 Hom.: 458

Bravo AF: 0.203

Asia WGS AF: 0.0640 AC: 225 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Jun 19, 2018

- -

Computational scores

Source: dbNSFP v4.3

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

Other links and lift over

dbSNP: rs33949871; hg19: chr5-130506901;