16-20924009-C-A

Variant names:

• chr16-20924009-C-A
• rs527277718
• NM_001128302.3:c.262C>A
• LYRM1 p.Pro88Thr

Variant summary

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

The NM_001128302.3(LYRM1):​c.262C>A​(p.Pro88Thr) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. 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. P88S) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: LYRM1 NM_001128302.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.09
• Publications: 1 publications found

Genes affected

LYRM1 (HGNC:25074): (LYR motif containing 1) The protein encoded by this gene belongs to the mitochondrial leucine/tyrosine/arginine motif family of proteins. Proteins of this family are short polypeptides that contain a leucine/tyrosine/arginine motif near the N-terminus. This gene is widely expressed with high levels in omental adipose tissue of obese individuals. In adipose tissue, the protein is localized to the nucleus where it promotes preadipocyte proliferation and lowers the rate of apoptosis to regulate adipose tissue homeostasis. Overexpression of this gene in adipocytes causes abnormal mitochondrial morphology and mitochondrial dysfunction. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2014]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001128302.3. 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
	LYRM1	NM_001128302.3	MANE Select	c.262C>A	p.Pro88Thr	missense	Exon 4 of 4	NP_001121774.1	O43325
	LYRM1	NM_001369631.1		c.277C>A	p.Pro93Thr	missense	Exon 6 of 6	NP_001356560.1
	LYRM1	NM_001128301.3		c.262C>A	p.Pro88Thr	missense	Exon 5 of 5	NP_001121773.1	O43325

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LYRM1	ENST00000567954.6	TSL:1 MANE Select	c.262C>A	p.Pro88Thr	missense	Exon 4 of 4	ENSP00000457333.1	O43325
	LYRM1	ENST00000396052.3	TSL:1	c.262C>A	p.Pro88Thr	missense	Exon 6 of 6	ENSP00000379367.2	O43325
	LYRM1	ENST00000412082.6	TSL:1	c.-6C>A		5_prime_UTR	Exon 3 of 3	ENSP00000396868.2	H3BNA8

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1434748 Hom.: 0 Cov.: 27 AF XY: 0.00 AC XY: 0 AN XY: 715126

African (AFR) AF: 0.00 AC: 0 AN: 32516

American (AMR) AF: 0.00 AC: 0 AN: 41698

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25618

East Asian (EAS) AF: 0.00 AC: 0 AN: 39608

South Asian (SAS) AF: 0.00 AC: 0 AN: 83892

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53336

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5690

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1092900

Other (OTH) AF: 0.00 AC: 0 AN: 59490

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.51
BayesDel_addAF	Pathogenic	0.34	D
BayesDel_noAF	Pathogenic	0.25
CADD	Uncertain	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.14	T
Eigen	Pathogenic	0.84
Eigen_PC	Pathogenic	0.82
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.93	D
M_CAP	Benign	0.018	T
MetaRNN	Uncertain	0.62	D
MetaSVM	Uncertain	0.061	D
MutationAssessor	Uncertain	2.7	M
PhyloP100		6.1
PrimateAI	Uncertain	0.70	T
PROVEAN	Pathogenic	-5.2	D
REVEL	Uncertain	0.54
Sift	Uncertain	0.0030	D
Sift4G	Uncertain	0.012	D
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.63
gMVP		0.68

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs527277718;

hg19: chr16-20935331;