MT-TH

Chr MT

tRNA-His

Also known as: MTTH

Predicted to enable triplet codon-amino acid adaptor activity. Predicted to be involved in translation. [provided by Alliance of Genome Resources, Jul 2025]

GeneReviewsOMIMResearchGenerating clinical summary…

Clinical highlights

0
Active trials
1
Pubs (1 yr)
—
P/LP submissions
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P/LP missense
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LOEUF
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Mechanism
📖
GeneReview available — MT-TH
Authoritative clinical overview · Recommended first read
Open GeneReview ↗
Nuclear-gene analyses omitted

MT-TH is a mitochondrial tRNA gene. gnomAD constraint, carrier burden and exome coverage, the ClinVar type breakdown, the protein lollipop, AlphaFold and transcript-architecture views are built for nuclear genes and are not shown. Population data for mtDNA variants (gnomAD v3.1, homoplasmy and heteroplasmy) is on each variant page.

Where it sits in the mitochondrial genome

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012345678910111213141516F12SV16SL1ND1IQMND2WANCYCO1S1DCO2KATP8ATP6CO3GND3RND4LND4HS2L2ND5ND6ECYBTPOHOLHSPLSPMT-TH

tRNA · m.12138–12206

proteinrRNAtRNAouter ring H-strand · inner L-strandMITOMAP confirmedreported (as of 2026-10-07)

37 genes from Ensembl (rCRS numbering, matched to MITOMAP’s Gene Loci); landmarks and disease alleles from MITOMAP (CC BY 3.0). Circular layout after MitoWheel.

ClinVar Variant Classifications

0 submitted variants in ClinVar

MITOMAP Disease Variants — MT-TH

Live table ↗
VariantDiseaseStatusGenBank seqs
m.12141A>GReported in tic disorder patientReported9
m.12146A>GMELASReported0
m.12147G>AMERRF-MELAS / EncephalopathyLikely pathogenic · confirmed0
m.12148T>CDevelopmental delay, optic atrophy, cataract, hearing loss, myopathyUncertain significance · reported1
m.12158A>GMELASReported0
m.12167T>CHearing loss patientReported2
m.12182A>GSclerosis-like symptoms + white matter alterationsAuthor considered as VUS2
m.12183G>ARP + DEAFUncertain significance · reported1
m.12187C>AAsthenozoospermiaReported0
m.12188T>CHearing loss patientReported69
m.12192G>AMICM / possible G15927A deafness modulatorReported159
m.12197C>TCongenital sideroblastic anemia (CSA) +SNHL +motor delayReported0
m.12198T>CCongenital sideroblastic anemia (CSA)Reported0
m.12201T>CMaternally inherited non-syndromic deafnessLikely pathogenic · confirmed1
m.12206C>TMELAS-like encephalopathy+bilateral optic atrophyReported0

As of 2026-10-07 — a dated copy; MITOMAP can’t be fetched live, and the live table may be newer.

Source: MITOMAP (mitomap.org), CC BY 3.0

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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Trials that enrol by condition rarely name the gene: mitochondrial disease