NM_012459.4:c.85-56A>T

Variant names:

• chr11-112085518-T-A
• NM_012459.4:c.85-56A>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_012459.4(TIMM8B):​c.85-56A>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: TIMM8B NM_012459.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.623
• Publications: 0 publications found

Genes affected

TIMM8B (HGNC:11818): (translocase of inner mitochondrial membrane 8 homolog B) This gene encodes a member of a well-conserved family of proteins with similarity to yeast Tim mitochondrial import proteins. This gene is encoded by a nuclear gene and is transported into the intermembrane space of the mitochondrion. When formed into complexes, these proteins guide membrane-spanning proteins across the mitochondrial intermembrane space before they are added into the mitochondrial inner membrane. This gene is adjacent to succinate dehydrogenase, subunit D (SDHD), in which mutations have been found in affected members of families with hereditary paraganglioma.[provided by RefSeq, Aug 2009]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.74).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_012459.4. 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
	TIMM8B	NM_012459.4	MANE Select	c.85-56A>T		intron	N/A	NP_036591.3
	TIMM8B	NR_028383.2		n.451-56A>T		intron	N/A
	TIMM8B	NR_160400.1		n.462-56A>T		intron	N/A

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TIMM8B	ENST00000504148.3	TSL:1 MANE Select	c.85-56A>T		intron	N/A	ENSP00000422122.2
	TIMM8B	ENST00000541231.1	TSL:1	c.130-56A>T		intron	N/A	ENSP00000438455.1
	TIMM8B	ENST00000509359.6	TSL:1	n.*319-56A>T		intron	N/A	ENSP00000421964.2

Frequencies

GnomAD3 genomes Cov.: 32

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

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.74
CADD	Benign	3.7
DANN	Benign	0.82
PhyloP100		0.62

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

hg19: chr11-111956242;