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LRTOMT leucine rich transmembrane and O-methyltransferase domain containing [ Homo sapiens (human) ]

Gene ID: 220074, updated on 2-Nov-2024

Summary

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Official Symbol
LRTOMTprovided by HGNC
Official Full Name
leucine rich transmembrane and O-methyltransferase domain containingprovided by HGNC
Primary source
HGNC:HGNC:25033
See related
Ensembl:ENSG00000284922 MIM:612414; AllianceGenome:HGNC:25033
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
TOMT; DFNB63; LRRC51; CFAP111; LRRC51-TOMT
Summary
This locus represents naturally occurring readthrough transcription between the neighboring LRRC51 (leucine-rich repeat containing 51) and TOMT (transmembrane O-methyltransferase) genes on chromosome 11. The readthrough transcript encodes a fusion protein that shares sequence identity with each individual gene product. Multiple reports implicate mutations in this gene in nonsyndromic deafness.[provided by RefSeq, Feb 2021]
Expression
Broad expression in testis (RPKM 6.2), thyroid (RPKM 2.2) and 25 other tissues See more
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Genomic context

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See LRTOMT in Genome Data Viewer
Location:
11q13.4
Exon count:
9
Annotation release Status Assembly Chr Location
RS_2024_08 current GRCh38.p14 (GCF_000001405.40) 11 NC_000011.10 (72080850..72110782)
RS_2024_08 current T2T-CHM13v2.0 (GCF_009914755.1) 11 NC_060935.1 (72007754..72037672)
RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 11 NC_000011.9 (71791896..71821828)

Chromosome 11 - NC_000011.10Genomic Context describing neighboring genes Neighboring gene nuclear mitotic apparatus protein 1 Neighboring gene uncharacterized LOC124902815 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr11:71790999-71791954 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr11:71791955-71792909 Neighboring gene microRNA 3165 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 5180 Neighboring gene leucine rich repeat containing 51 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 5181 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 3713 Neighboring gene H3K27ac hESC enhancer GRCh37_chr11:71814909-71815429 Neighboring gene uncharacterized LOC124902837 Neighboring gene late endosomal/lysosomal adaptor, MAPK and MTOR activator 1 Neighboring gene H3K27ac hESC enhancer GRCh37_chr11:71823011-71823548 Neighboring gene H3K27ac hESC enhancer GRCh37_chr11:71823549-71824086 Neighboring gene H3K27ac hESC enhancer GRCh37_chr11:71824087-71824624 Neighboring gene anaphase promoting complex subunit 15 Neighboring gene transmembrane O-methyltransferase Neighboring gene H3K4me1 hESC enhancer GRCh37_chr11:71849877-71850378 Neighboring gene ribulose-5-phosphate-3-epimerase pseudogene 6 Neighboring gene folate receptor gamma

Genomic regions, transcripts, and products

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Go to nucleotide: Graphics FASTA GenBank

Expression

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  • Project title: HPA RNA-seq normal tissues HPA RNA-seq normal tissues
  • Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
  • BioProject: PRJEB4337
  • Publication: PMID 24309898
  • Analysis date: Wed Apr 4 07:08:55 2018

Bibliography

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Related articles in PubMed

  1. Identification a novel pathogenic LRTOMT mutation in Mauritanian families with nonsyndromic deafness. Salame M, et al. Eur Arch Otorhinolaryngol, 2023 Sep. PMID 36928321
  2. Deep analysis of the LRTOMTc.242G>A variant in non-syndromic hearing loss North African patients and the Berber population: Implications for genetic diagnosis and genealogical studies. Mosrati MA, et al. Mol Genet Genomic Med, 2021 Oct. PMID 34514748, Free PMC Article
  3. A 1 bp deletion in the dual reading frame deafness gene LRTOMT causes a frameshift from the first into the second reading frame. Vanwesemael M, et al. Am J Med Genet A, 2011 Aug. PMID 21739586
  4. Autosomal recessive nonsyndromic deafness locus DFNB63 at chromosome 11q13.2-q13.3. Khan SY, et al. Hum Genet, 2007 Feb. PMID 17066295
  5. Localization of a novel autosomal recessive non-syndromic hearing impairment locus DFNB63 to chromosome 11q13.3-q13.4. Tlili A, et al. Ann Hum Genet, 2007 Mar. PMID 17166180

See all (21) citations in PubMed

GeneRIFs: Gene References Into Functions

What's a GeneRIF?
  1. Identification a novel pathogenic LRTOMT mutation in Mauritanian families with nonsyndromic deafness.
    Title: Identification a novel pathogenic LRTOMT mutation in Mauritanian families with nonsyndromic deafness.
  2. Deep analysis of the LRTOMTc.242G>A variant in non-syndromic hearing loss North African patients and the Berber population: Implications for genetic diagnosis and genealogical studies.
    Title: Deep analysis of the LRTOMTc.242G>A variant in non-syndromic hearing loss North African patients and the Berber population: Implications for genetic diagnosis and genealogical studies.
  3. A novel pathogenic variant in the LRTOMT gene causes autosomal recessive non-syndromic hearing loss in an Iranian family.
    Title: A novel pathogenic variant in the LRTOMT gene causes autosomal recessive non-syndromic hearing loss in an Iranian family.
  4. Results indicate that mutations in the LRT)MT gene lead to alterations in the LRTOMT2 protein and might be involved in progressive sensorineural hearing loss.
    Title: Novel mutations in LRTOMT associated with moderate progressive hearing loss in autosomal recessive inheritance.
  5. LRTOMT gene is the second cause of congenital hearing impairment in Moroccan patients.
    Title: The c.242G>A mutation in LRTOMT gene is responsible for a high prevalence of deafness in the Moroccan population.
  6. A 1 bp deletion in the dual reading frame deafness gene LRTOMT causes a frameshift from the first into the second reading frame.
    Title: A 1 bp deletion in the dual reading frame deafness gene LRTOMT causes a frameshift from the first into the second reading frame.
  7. A genome wide linkage analysis of nonsyndromic deafness segregating in a consanguineous Pakistani family (PKDF537) was used to identify DFNB63, a new locus for congenital profound sensorineural hearing loss.
    Title: Autosomal recessive nonsyndromic deafness locus DFNB63 at chromosome 11q13.2-q13.3.
  8. The locus associated with ARNSHI
    Title: A novel locus for autosomal recessive nonsyndromic hearing impairment, DFNB63, maps to chromosome 11q13.2-q13.4.
  9. Haplotype analysis defined a 5.55 Mb critical region between microsatellite markers D11S4136 and D11S4081.
    Title: Localization of a novel autosomal recessive non-syndromic hearing impairment locus DFNB63 to chromosome 11q13.3-q13.4.
  10. nonsense mutation in the human ortholog of the murine Comt2 gene that causes nonsyndromic deafness
    Title: A catechol-O-methyltransferase that is essential for auditory function in mice and humans.
Submit: New GeneRIF Correction See all GeneRIFs (11)

Phenotypes

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Find tests for this gene in the NIH Genetic Testing Registry (GTR)

Review eQTL and phenotype association data in this region using PheGenI

Associated conditions

Description Tests
Autosomal recessive nonsyndromic hearing loss 63
MedGen: C1969621 OMIM: 611451 GeneReviews: Genetic Hearing Loss Overview
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Variation

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See variants in ClinVar

See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

See Variation Viewer (GRCh38)

Genotypes

Pathways from PubChem

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Interactions

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Products Interactant Other Gene Complex Source Pubs Description

General gene information

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Markers

Potential readthrough

Included genes: LRRC51, TOMT

Homology

Clone Names

  • FLJ52451

General protein information

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Preferred Names
transmembrane O-methyltransferase
Names
leucine rich transmembrane and 0-methyltransferase domain containing
NP_001138780.1
NP_001138781.1
NP_001138782.1

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

Genomic

  1. NG_021423.1 RefSeqGene

    Range
    4996..35447
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_001145308.5 → NP_001138780.1  transmembrane O-methyltransferase isoform LRTOMT2a

    See identical proteins and their annotated locations for NP_001138780.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (4) represents the long transcript form. It has multiple differences from variant 1. This variant lacks the upstream open reading frame as seen in the other variants of the long transcript form. The encoded isoform (LRTOMT2a) is a transmembrane catechol-O-methyltransferase. This protein is supported by Western blot as reported in PMID:18953341. Variants 4 and 5 encode the same isoform LRTOMT2a.
    Source sequence(s)
    AK302772, BX115135, EU627069
    Consensus CDS
    CCDS44668.1
    UniProtKB/Swiss-Prot
    B7Z816, Q8WZ04
    Related
    ENSP00000305742.7, ENST00000307198.11
    Conserved Domains (1) summary
    cl17173
    Location:88 → 249
    AdoMet_MTases; S-adenosylmethionine-dependent methyltransferases (SAM or AdoMet-MTase), class I; AdoMet-MTases are enzymes that use S-adenosyl-L-methionine (SAM or AdoMet) as a substrate for methyltransfer, creating the product S-adenosyl-L-homocysteine (AdoHcy). ...

  2. NM_001145309.4 → NP_001138781.1  transmembrane O-methyltransferase isoform LRTOMT2a

    See identical proteins and their annotated locations for NP_001138781.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (5), also known as D', represents the long transcript form. It lacks the 3' terminal exon and includes several alternate exons, compared to variant 1. This variant encodes isoform LRTOMT2a, which is a transmembrane catechol-O-methyltransferase and is supported by Western blot as reported in PMID: 18953341. Variants 4 and 5 encode the same isoform LRTOMT2a.
    Source sequence(s)
    AP000812, AP002490
    UniProtKB/Swiss-Prot
    B7Z816, Q8WZ04
    Conserved Domains (1) summary
    cl17173
    Location:88 → 249
    AdoMet_MTases; S-adenosylmethionine-dependent methyltransferases (SAM or AdoMet-MTase), class I; AdoMet-MTases are enzymes that use S-adenosyl-L-methionine (SAM or AdoMet) as a substrate for methyltransfer, creating the product S-adenosyl-L-homocysteine (AdoHcy). ...

  3. NM_001145310.4 → NP_001138782.1  transmembrane O-methyltransferase isoform LRTOMT2b

    See identical proteins and their annotated locations for NP_001138782.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (6), also known as E', represents the long transcript form. It lacks the 3' terminal exon and includes several alternate exons, compared to variant 1. This variant encodes isoform LRTOMT2b, which lacks an internal segment including the transmembrane region, compared to isoform LRTOMT2a. Isoform LRTOMT2b is a catechol-O-methyltransferase, which is supported by Western blot as reported in PMID: 18953341.
    Source sequence(s)
    AP000812, AP002490
    UniProtKB/Swiss-Prot
    Q8WZ04
    Conserved Domains (1) summary
    cl17173
    Location:48 → 209
    AdoMet_MTases; S-adenosylmethionine-dependent methyltransferases (SAM or AdoMet-MTase), class I; AdoMet-MTases are enzymes that use S-adenosyl-L-methionine (SAM or AdoMet) as a substrate for methyltransfer, creating the product S-adenosyl-L-homocysteine (AdoHcy). ...

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2024_08

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p14 Primary Assembly

Genomic

  1. NC_000011.10 Reference GRCh38.p14 Primary Assembly

    Range
    72080850..72110782
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060935.1 Alternate T2T-CHM13v2.0

    Range
    72007754..72037672
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Suppressed Reference Sequence(s)

The following Reference Sequences have been suppressed. Explain

  1. NR_073187.2: Suppressed sequence

    Description
    NR_073187.2: This RefSeq was permanently suppressed because this transcript has been represented by NM_001145309.3.

  2. NR_073188.2: Suppressed sequence

    Description
    NR_073188.2: This RefSeq was permanently suppressed because this transcript has been represented by NM_001145310.3.
Nucleotide Protein
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