rs772751581

Variant names:

• chr14-22769791-G-A
• rs772751581
• NM_005015.5:c.440G>A

Your query was ambiguous. Multiple possible variants found:

• chr14-22769791-G-A
• chr14-22769791-G-T

Variant summary

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

The NM_005015.5(OXA1L):​c.440G>A​(p.Cys147Tyr) variant causes a missense, splice region change. The variant was absent in control chromosomes in GnomAD project. 2/3 splice prediction tools predicting alterations to normal splicing. 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. C147F) has been classified as Pathogenic.

• Frequency: Genomes: not found (cov: 32)
• Consequence: OXA1L NM_005015.5 missense, splice_region
• Scores: Splicing: ADA: 0.9989
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.10
• Publications: 6 publications found

Genes affected

OXA1L (HGNC:8526): (OXA1L mitochondrial inner membrane protein) This gene encodes an evolutionarily conserved protein that is localized to the inner mitochondrial membrane. The encoded protein is essential for the translocation of the N-terminal tail of subunit 2 of cytochrome c oxidase, and is involved in the assembly of the cytochrome c oxidase and ATPase complexes of the mitochondrial respiratory chain. [provided by RefSeq, Jul 2016]

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 chr14-22769791-G-T is described in ClinVar as Pathogenic. ClinVar VariationId is 560160.Status of the report is no_assertion_criteria_provided, 0 stars.
• PP3: Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005015.5. 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
	OXA1L	NM_005015.5	MANE Select	c.440G>A	p.Cys147Tyr	missense splice_region	Exon 4 of 10	NP_005006.4

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	OXA1L	ENST00000612549.6	TSL:1 MANE Select	c.440G>A	p.Cys147Tyr	missense splice_region	Exon 4 of 10	ENSP00000483491.2
	OXA1L	ENST00000285848.9	TSL:1	c.620G>A	p.Cys207Tyr	missense splice_region	Exon 4 of 10	ENSP00000285848.5
	OXA1L	ENST00000358043.5	TSL:2	c.392G>A	p.Cys131Tyr	missense splice_region	Exon 4 of 10	ENSP00000350740.5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.78
BayesDel_addAF	Uncertain	0.013	T
BayesDel_noAF	Benign	-0.22
CADD	Pathogenic	27
DANN	Uncertain	0.99
DEOGEN2	Benign	0.11	T
Eigen	Pathogenic	0.73
Eigen_PC	Pathogenic	0.75
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Uncertain	0.91	D
M_CAP	Benign	0.0097	T
MetaRNN	Uncertain	0.52	D
MetaSVM	Benign	-1.0	T
PhyloP100		5.1
PrimateAI	Uncertain	0.62	T
PROVEAN	Uncertain	-3.4	D
REVEL	Benign	0.22
Sift	Uncertain	0.028	D
Sift4G	Uncertain	0.040	D
Polyphen		1.0	D
Vest4		0.69
MutPred		0.42		Loss of stability (P = 0.1342)
MVP		0.79
MPC		0.12
ClinPred		0.97	D
GERP RS		6.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
gMVP		0.74
Mutation Taster		=26/74	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Pathogenic	1.0
dbscSNV1_RF	Pathogenic	0.89
SpliceAI score (max)		0.050		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: rs772751581; hg19: chr14-23239000;