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HEMK1 HemK methyltransferase 1, mitochondrial release factors N(5)-glutamine [ Homo sapiens (human) ]

Gene ID: 51409, updated on 9-Sep-2025
Official Symbol
HEMK1provided by HGNC
Official Full Name
HemK methyltransferase 1, mitochondrial release factors N(5)-glutamineprovided by HGNC
Primary source
HGNC:HGNC:24923
See related
Ensembl:ENSG00000114735 MIM:618609; AllianceGenome:HGNC:24923
Gene type
protein coding
RefSeq status
VALIDATED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
HEMK; MTQ1; MPRMC
Summary
Enables peptide chain release factor N(5)-glutamine methyltransferase activity. Predicted to be involved in translational termination. Located in mitochondrion. [provided by Alliance of Genome Resources, Jul 2025]
Expression
Ubiquitous expression in thyroid (RPKM 4.4), ovary (RPKM 4.1) and 25 other tissues See more
Orthologs
NEW
Try the new Gene table
Try the new Transcript table
See HEMK1 in Genome Data Viewer
Location:
3p21.31
Exon count:
13
Annotation release Status Assembly Chr Location
RS_2025_08 current GRCh38.p14 (GCF_000001405.40) 3 NC_000003.12 (50569180..50596166)
RS_2025_08 current T2T-CHM13v2.0 (GCF_009914755.1) 3 NC_060927.1 (50599066..50626049)
RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 3 NC_000003.11 (50606611..50633597)

Chromosome 3 - NC_000003.12Genomic Context describing neighboring genes Neighboring gene calcium voltage-gated channel auxiliary subunit alpha2delta 2 Neighboring gene uncharacterized LOC105377082 Neighboring gene uncharacterized LOC124909378 Neighboring gene ReSE screen-validated silencer GRCh37_chr3:50497326-50497515 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr3:50502013-50502514 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr3:50504841-50505342 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr3:50522331-50522892 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr3:50525585-50526085 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr3:50530681-50531336 Neighboring gene NANOG-H3K27ac-H3K4me1 hESC enhancer GRCh37_chr3:50533211-50534158 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr3:50541176-50541684 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr3:50541685-50542193 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr3:50549261-50550206 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr3:50553051-50553689 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr3:50560501-50561010 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr3:50562801-50563438 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr3:50569793-50570542 Neighboring gene uncharacterized LOC105377083 Neighboring gene ReSE screen-validated silencer GRCh37_chr3:50575146-50575387 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr3:50576885-50577561 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr3:50584920-50585829 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr3:50586902-50587840 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 14398 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 19907 Neighboring gene chromosome 3 open reading frame 18 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr3:50619223-50619724 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr3:50619725-50620224 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr3:50621581-50622099 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 19908 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 19909 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 19910 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 19911 Neighboring gene VISTA enhancer hs1747 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 14399 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr3:50648164-50648724 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 14400 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 19912 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 19913 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr3:50654302-50655255 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr3:50655256-50656208 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 14404 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 14405 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr3:50662917-50663693 Neighboring gene MAPK activated protein kinase 3 Neighboring gene cytokine inducible SH2 containing protein Neighboring gene H3K4me1 hESC enhancer GRCh37_chr3:50684509-50685008 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr3:50686500-50687053 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr3:50688509-50689442 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr3:50689443-50690376 Neighboring gene long intergenic non-protein coding RNA 2019

  • Project title: Tissue-specific circular RNA induction during human fetal development
  • Description: 35 human fetal samples from 6 tissues (3 - 7 replicates per tissue) collected between 10 and 20 weeks gestational time were sequenced using Illumina TruSeq Stranded Total RNA
  • BioProject: PRJNA270632
  • Publication: PMID 26076956
  • Analysis date: Mon Apr 2 22:54:59 2018

GeneRIFs: Gene References Into Functions

What's a GeneRIF?
Products Interactant Other Gene Complex Source Pubs Description

Markers

Clone Names

  • FLJ22320

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables DNA binding IEA
Inferred from Electronic Annotation
more info
 
enables N-methyltransferase activity IEA
Inferred from Electronic Annotation
more info
 
enables S-adenosylmethionine-dependent methyltransferase activity IEA
Inferred from Electronic Annotation
more info
 
enables methyltransferase activity IEA
Inferred from Electronic Annotation
more info
 
enables nucleic acid binding IEA
Inferred from Electronic Annotation
more info
 
enables peptide chain release factor N(5)-glutamine methyltransferase activity IDA
Inferred from Direct Assay
more info
PubMed 
enables peptide chain release factor N(5)-glutamine methyltransferase activity IEA
Inferred from Electronic Annotation
more info
 
enables protein binding IPI
Inferred from Physical Interaction
more info
PubMed 
enables protein methyltransferase activity IEA
Inferred from Electronic Annotation
more info
 
enables protein-glutamine N-methyltransferase activity IBA
Inferred from Biological aspect of Ancestor
more info
 
enables transferase activity IEA
Inferred from Electronic Annotation
more info
 
Process Evidence Code Pubs
involved_in methylation IEA
Inferred from Electronic Annotation
more info
 
involved_in translational termination IBA
Inferred from Biological aspect of Ancestor
more info
 
Component Evidence Code Pubs
located_in mitochondrion HTP PubMed 
located_in mitochondrion IEA
Inferred from Electronic Annotation
more info
 
Preferred Names
MTRF1L release factor glutamine methyltransferase
Names
HEMK homolog 7kb
HemK methyltransferase family member 1
m.HsaHemKP
testis secretory sperm-binding protein Li 225n
NP_001304780.1
NP_001364349.1
NP_001364350.1
NP_001364351.1
NP_001364352.1
NP_001364353.1
NP_001364354.1
NP_001364355.1
NP_001364356.1
NP_001364357.1
NP_001364358.1
NP_057257.1
XP_005265275.1
XP_011532108.1
XP_011532109.1
XP_011532110.1
XP_011532112.1
XP_011532114.1
XP_011532116.1
XP_047304235.1
XP_047304236.1
XP_047304237.1
XP_047304238.1
XP_047304239.1
XP_047304240.1
XP_047304241.1
XP_047304242.1
XP_047304243.1
XP_047304244.1
XP_047304245.1
XP_047304246.1
XP_054202759.1
XP_054202760.1
XP_054202761.1
XP_054202762.1
XP_054202763.1
XP_054202764.1
XP_054202765.1
XP_054202766.1
XP_054202767.1
XP_054202768.1
XP_054202769.1
XP_054202770.1
XP_054202771.1
XP_054202772.1

NEW Try the new Transcript table

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.

mRNA and Protein(s)

  1. NM_001317851.2NP_001304780.1  MTRF1L release factor glutamine methyltransferase isoform 1

    Status: VALIDATED

    Description
    Transcript Variant: This variant (2) uses an alternate splice site in the 5' UTR compared to variant 1. Variants 1 and 2 encode the same protein.
    Source sequence(s)
    AC096920, AF172244, AK025973, BQ183021, BX537562, DA404565, DB101409
    Consensus CDS
    CCDS2830.1
    UniProtKB/Swiss-Prot
    Q9Y5R4
    UniProtKB/TrEMBL
    A0A140VK98, B2RA37
    Related
    ENSP00000404843.1, ENST00000434410.5
    Conserved Domains (1) summary
    TIGR03534
    Location:63331
    RF_mod_PrmC; protein-(glutamine-N5) methyltransferase, release factor-specific
  2. NM_001377420.1NP_001364349.1  MTRF1L release factor glutamine methyltransferase isoform 1

    Status: VALIDATED

    Source sequence(s)
    AC096920
    Consensus CDS
    CCDS2830.1
    UniProtKB/Swiss-Prot
    Q9Y5R4
    UniProtKB/TrEMBL
    A0A140VK98, B2RA37
    Related
    ENSP00000574309.1, ENST00000904250.1
    Conserved Domains (1) summary
    TIGR03534
    Location:63331
    RF_mod_PrmC; protein-(glutamine-N5) methyltransferase, release factor-specific
  3. NM_001377421.1NP_001364350.1  MTRF1L release factor glutamine methyltransferase isoform 1

    Status: VALIDATED

    Source sequence(s)
    AC096920
    Consensus CDS
    CCDS2830.1
    UniProtKB/Swiss-Prot
    Q9Y5R4
    UniProtKB/TrEMBL
    A0A140VK98, B2RA37
    Related
    ENSP00000404334.1, ENST00000455834.5
    Conserved Domains (1) summary
    TIGR03534
    Location:63331
    RF_mod_PrmC; protein-(glutamine-N5) methyltransferase, release factor-specific
  4. NM_001377422.1NP_001364351.1  MTRF1L release factor glutamine methyltransferase isoform 1

    Status: VALIDATED

    Source sequence(s)
    AC096920
    Consensus CDS
    CCDS2830.1
    UniProtKB/Swiss-Prot
    Q9Y5R4
    UniProtKB/TrEMBL
    A0A140VK98, B2RA37
    Related
    ENSP00000574315.1, ENST00000904256.1
    Conserved Domains (1) summary
    TIGR03534
    Location:63331
    RF_mod_PrmC; protein-(glutamine-N5) methyltransferase, release factor-specific
  5. NM_001377423.1NP_001364352.1  MTRF1L release factor glutamine methyltransferase isoform 2

    Status: VALIDATED

    Source sequence(s)
    AC096920
    UniProtKB/TrEMBL
    B2RA37
    Conserved Domains (1) summary
    TIGR03534
    Location:63326
    RF_mod_PrmC; protein-(glutamine-N5) methyltransferase, release factor-specific
  6. NM_001377424.1NP_001364353.1  MTRF1L release factor glutamine methyltransferase isoform 3

    Status: VALIDATED

    Source sequence(s)
    AC096920
    UniProtKB/TrEMBL
    B2RA37
    Related
    ENSP00000574306.1, ENST00000904247.1
    Conserved Domains (1) summary
    TIGR03534
    Location:63330
    RF_mod_PrmC; protein-(glutamine-N5) methyltransferase, release factor-specific
  7. NM_001377425.1NP_001364354.1  MTRF1L release factor glutamine methyltransferase isoform 4

    Status: VALIDATED

    Source sequence(s)
    AC096920
    Conserved Domains (1) summary
    TIGR03534
    Location:1224
    RF_mod_PrmC; protein-(glutamine-N5) methyltransferase, release factor-specific
  8. NM_001377426.1NP_001364355.1  MTRF1L release factor glutamine methyltransferase isoform 4

    Status: VALIDATED

    Source sequence(s)
    AC096920
    Conserved Domains (1) summary
    TIGR03534
    Location:1224
    RF_mod_PrmC; protein-(glutamine-N5) methyltransferase, release factor-specific
  9. NM_001377427.1NP_001364356.1  MTRF1L release factor glutamine methyltransferase isoform 4

    Status: VALIDATED

    Source sequence(s)
    AC096920
    Conserved Domains (1) summary
    TIGR03534
    Location:1224
    RF_mod_PrmC; protein-(glutamine-N5) methyltransferase, release factor-specific
  10. NM_001377428.1NP_001364357.1  MTRF1L release factor glutamine methyltransferase isoform 4

    Status: VALIDATED

    Source sequence(s)
    AC096920
    Conserved Domains (1) summary
    TIGR03534
    Location:1224
    RF_mod_PrmC; protein-(glutamine-N5) methyltransferase, release factor-specific
  11. NM_001377429.1NP_001364358.1  MTRF1L release factor glutamine methyltransferase isoform 4

    Status: VALIDATED

    Source sequence(s)
    AC096920
    Conserved Domains (1) summary
    TIGR03534
    Location:1224
    RF_mod_PrmC; protein-(glutamine-N5) methyltransferase, release factor-specific
  12. NM_016173.5NP_057257.1  MTRF1L release factor glutamine methyltransferase isoform 1

    See identical proteins and their annotated locations for NP_057257.1

    Status: VALIDATED

    Description
    Transcript Variant: This variant (1) represents the longer transcript. Variants 1 and 2 encode the same protein.
    Source sequence(s)
    AC096920, AF172244, AK314023, BQ183021, BX537562, DA363235, DA404565, DB101409
    Consensus CDS
    CCDS2830.1
    UniProtKB/Swiss-Prot
    Q9Y5R4
    UniProtKB/TrEMBL
    A0A140VK98, B2RA37
    Related
    ENSP00000232854.4, ENST00000232854.9
    Conserved Domains (1) summary
    TIGR03534
    Location:63331
    RF_mod_PrmC; protein-(glutamine-N5) methyltransferase, release factor-specific

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2025_08

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

Reference GRCh38.p14 Primary Assembly

Genomic

  1. NC_000003.12 Reference GRCh38.p14 Primary Assembly

    Range
    50569180..50596166
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_047448287.1XP_047304243.1  MTRF1L release factor glutamine methyltransferase isoform X5

    UniProtKB/TrEMBL
    B2RA37
  2. XM_011533808.1XP_011532110.1  MTRF1L release factor glutamine methyltransferase isoform X1

    See identical proteins and their annotated locations for XP_011532110.1

    UniProtKB/TrEMBL
    B2RA37
    Conserved Domains (1) summary
    TIGR03534
    Location:63326
    RF_mod_PrmC; protein-(glutamine-N5) methyltransferase, release factor-specific
  3. XM_047448285.1XP_047304241.1  MTRF1L release factor glutamine methyltransferase isoform X3

    UniProtKB/Swiss-Prot
    Q9Y5R4
    UniProtKB/TrEMBL
    A0A140VK98, B2RA37
    Related
    ENSP00000574313.1, ENST00000904254.1
  4. XM_047448286.1XP_047304242.1  MTRF1L release factor glutamine methyltransferase isoform X3

    UniProtKB/Swiss-Prot
    Q9Y5R4
    UniProtKB/TrEMBL
    A0A140VK98, B2RA37
    Related
    ENSP00000630528.1, ENST00000960469.1
  5. XM_047448284.1XP_047304240.1  MTRF1L release factor glutamine methyltransferase isoform X3

    UniProtKB/Swiss-Prot
    Q9Y5R4
    UniProtKB/TrEMBL
    A0A140VK98, B2RA37
    Related
    ENSP00000574310.1, ENST00000904251.1
  6. XM_047448288.1XP_047304244.1  MTRF1L release factor glutamine methyltransferase isoform X5

    UniProtKB/TrEMBL
    B2RA37
  7. XM_005265218.4XP_005265275.1  MTRF1L release factor glutamine methyltransferase isoform X5

    UniProtKB/TrEMBL
    B2RA37
    Related
    ENSP00000630527.1, ENST00000960468.1
    Conserved Domains (1) summary
    TIGR03534
    Location:63279
    RF_mod_PrmC; protein-(glutamine-N5) methyltransferase, release factor-specific
  8. XM_047448281.1XP_047304237.1  MTRF1L release factor glutamine methyltransferase isoform X1

    UniProtKB/TrEMBL
    B2RA37
  9. XM_011533807.2XP_011532109.1  MTRF1L release factor glutamine methyltransferase isoform X1

    See identical proteins and their annotated locations for XP_011532109.1

    UniProtKB/TrEMBL
    B2RA37
    Conserved Domains (1) summary
    TIGR03534
    Location:63326
    RF_mod_PrmC; protein-(glutamine-N5) methyltransferase, release factor-specific
  10. XM_047448282.1XP_047304238.1  MTRF1L release factor glutamine methyltransferase isoform X1

    UniProtKB/TrEMBL
    B2RA37
  11. XM_047448280.1XP_047304236.1  MTRF1L release factor glutamine methyltransferase isoform X1

    UniProtKB/TrEMBL
    B2RA37
  12. XM_011533806.3XP_011532108.1  MTRF1L release factor glutamine methyltransferase isoform X1

    See identical proteins and their annotated locations for XP_011532108.1

    UniProtKB/TrEMBL
    B2RA37
    Conserved Domains (1) summary
    TIGR03534
    Location:63326
    RF_mod_PrmC; protein-(glutamine-N5) methyltransferase, release factor-specific
  13. XM_011533810.3XP_011532112.1  MTRF1L release factor glutamine methyltransferase isoform X2

    UniProtKB/TrEMBL
    B2RA37
    Conserved Domains (1) summary
    TIGR03534
    Location:63326
    RF_mod_PrmC; protein-(glutamine-N5) methyltransferase, release factor-specific
  14. XM_011533812.3XP_011532114.1  MTRF1L release factor glutamine methyltransferase isoform X4

    UniProtKB/TrEMBL
    B2RA37
    Conserved Domains (1) summary
    TIGR03534
    Location:63274
    RF_mod_PrmC; protein-(glutamine-N5) methyltransferase, release factor-specific
  15. XM_047448279.1XP_047304235.1  MTRF1L release factor glutamine methyltransferase isoform X1

    UniProtKB/TrEMBL
    B2RA37
  16. XM_047448283.1XP_047304239.1  MTRF1L release factor glutamine methyltransferase isoform X2

    UniProtKB/TrEMBL
    B2RA37
  17. XM_047448289.1XP_047304245.1  MTRF1L release factor glutamine methyltransferase isoform X6

  18. XM_047448290.1XP_047304246.1  MTRF1L release factor glutamine methyltransferase isoform X7

  19. XM_011533814.3XP_011532116.1  MTRF1L release factor glutamine methyltransferase isoform X7

    See identical proteins and their annotated locations for XP_011532116.1

    Conserved Domains (1) summary
    TIGR03534
    Location:1219
    RF_mod_PrmC; protein-(glutamine-N5) methyltransferase, release factor-specific

RNA

  1. XR_007095692.1 RNA Sequence

  2. XR_940453.3 RNA Sequence

  3. XR_940454.3 RNA Sequence

  4. XR_940451.3 RNA Sequence

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060927.1 Alternate T2T-CHM13v2.0

    Range
    50599066..50626049
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_054346787.1XP_054202762.1  MTRF1L release factor glutamine methyltransferase isoform X1

    UniProtKB/TrEMBL
    B2RA37
  2. XM_054346793.1XP_054202768.1  MTRF1L release factor glutamine methyltransferase isoform X5

    UniProtKB/TrEMBL
    B2RA37
  3. XM_054346788.1XP_054202763.1  MTRF1L release factor glutamine methyltransferase isoform X1

    UniProtKB/TrEMBL
    B2RA37
  4. XM_054346789.1XP_054202764.1  MTRF1L release factor glutamine methyltransferase isoform X1

    UniProtKB/TrEMBL
    B2RA37
  5. XM_054346786.1XP_054202761.1  MTRF1L release factor glutamine methyltransferase isoform X1

    UniProtKB/TrEMBL
    B2RA37
  6. XM_054346784.1XP_054202759.1  MTRF1L release factor glutamine methyltransferase isoform X1

    UniProtKB/TrEMBL
    B2RA37
  7. XM_054346790.1XP_054202765.1  MTRF1L release factor glutamine methyltransferase isoform X2

    UniProtKB/TrEMBL
    B2RA37
  8. XM_054346792.1XP_054202767.1  MTRF1L release factor glutamine methyltransferase isoform X4

    UniProtKB/TrEMBL
    B2RA37
  9. XM_054346785.1XP_054202760.1  MTRF1L release factor glutamine methyltransferase isoform X1

    UniProtKB/TrEMBL
    B2RA37
  10. XM_054346791.1XP_054202766.1  MTRF1L release factor glutamine methyltransferase isoform X2

    UniProtKB/TrEMBL
    B2RA37
  11. XM_054346794.1XP_054202769.1  MTRF1L release factor glutamine methyltransferase isoform X5

    UniProtKB/TrEMBL
    B2RA37
  12. XM_054346795.1XP_054202770.1  MTRF1L release factor glutamine methyltransferase isoform X6

  13. XM_054346797.1XP_054202772.1  MTRF1L release factor glutamine methyltransferase isoform X7

  14. XM_054346796.1XP_054202771.1  MTRF1L release factor glutamine methyltransferase isoform X7

RNA

  1. XR_008486734.1 RNA Sequence

  2. XR_008486731.1 RNA Sequence

  3. XR_008486732.1 RNA Sequence

  4. XR_008486733.1 RNA Sequence