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UniProtKB - Q568P9 (HENMT_DANRE)
Protein
Small RNA 2'-O-methyltransferase
Gene
henmt1
Organism
Danio rerio (Zebrafish) (Brachydanio rerio)
Status
Functioni
Methyltransferase that adds a 2'-O-methyl group at the 3'-end of piRNAs, a class of 24 to 30 nucleotide RNAs that are generated by a Dicer-independent mechanism and are primarily derived from transposons and other repeated sequence elements. This probably protects the 3'-end of piRNAs from uridylation and adenylation activities and subsequent degradation. Stabilization of piRNAs is essential for oocyte development.
1 PublicationCatalytic activityi
- S-adenosyl-L-methionine + small RNA 3'-end nucleotide = H+ + S-adenosyl-L-homocysteine + small RNA 3'-end 2'-O-methylnucleotide1 PublicationEC:2.1.1.n81 Publication
Cofactori
Mg2+By similarityNote: Binds 1 Mg2+ ion per subunit.By similarity
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Binding sitei | 58 | S-adenosyl-L-methionineBy similarity | 1 | |
Binding sitei | 94 | S-adenosyl-L-methionineBy similarity | 1 | |
Metal bindingi | 112 | MagnesiumBy similarity | 1 | |
Metal bindingi | 115 | MagnesiumBy similarity | 1 | |
Metal bindingi | 116 | Magnesium; via tele nitrogenBy similarity | 1 | |
Metal bindingi | 162 | Magnesium; via tele nitrogenBy similarity | 1 |
GO - Molecular functioni
- metal ion binding Source: UniProtKB-KW
- O-methyltransferase activity Source: UniProtKB
- RNA binding Source: UniProtKB-KW
- RNA methyltransferase activity Source: UniProtKB
GO - Biological processi
- oocyte development Source: ZFIN
- piRNA metabolic process Source: ZFIN
- production of siRNA involved in RNA interference Source: GO_Central
- RNA methylation Source: UniProtKB
Keywordsi
Molecular function | Methyltransferase, RNA-binding, Transferase |
Biological process | Differentiation, Oogenesis, RNA-mediated gene silencing |
Ligand | Magnesium, Metal-binding, S-adenosyl-L-methionine |
Names & Taxonomyi
Protein namesi | Recommended name: Small RNA 2'-O-methyltransferase (EC:2.1.1.n81 Publication)Alternative name(s): HEN1 methyltransferase homolog 1 |
Gene namesi | Name:henmt1 ORF Names:si:ch211-199m3.6, zgc:110175 |
Organismi | Danio rerio (Zebrafish) (Brachydanio rerio) |
Taxonomic identifieri | 7955 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Actinopterygii › Neopterygii › Teleostei › Ostariophysi › Cypriniformes › Danionidae › Danioninae › Danio |
Proteomesi |
|
Organism-specific databases
ZFINi | ZDB-GENE-050417-387, henmt1 |
Subcellular locationi
Cytoplasm and Cytosol
- Cytoplasm 1 Publication
Note: Component of the meiotic nuage, also named P granule, a germ-cell-specific organelle required to repress transposon activity during meiosis.1 Publication
Keywords - Cellular componenti
CytoplasmPathology & Biotechi
Disruption phenotypei
Defects in germ cell development due to reduced piRNAs levels.1 Publication
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000304143 | 1 – 402 | Small RNA 2'-O-methyltransferaseAdd BLAST | 402 |
Proteomic databases
PaxDbi | Q568P9 |
Expressioni
Tissue specificityi
Gonad-specific.1 Publication
Developmental stagei
Expression in gonads starts around 3 weeks of age, which corresponds to the start of sex determination. Expression remains present in the adult gonads, both in males and females, although expression is weaker in testis.1 Publication
Gene expression databases
Bgeei | ENSDARG00000018871, Expressed in tail and 27 other tissues |
Family & Domainsi
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 348 – 402 | DisorderedSequence analysisAdd BLAST | 55 |
Compositional bias
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Compositional biasi | 354 – 374 | Acidic residuesSequence analysisAdd BLAST | 21 | |
Compositional biasi | 388 – 402 | Basic and acidic residuesSequence analysisAdd BLAST | 15 |
Sequence similaritiesi
Phylogenomic databases
eggNOGi | KOG1045, Eukaryota |
GeneTreei | ENSGT00390000004798 |
HOGENOMi | CLU_044646_0_0_1 |
InParanoidi | Q568P9 |
OMAi | QRHQFVV |
OrthoDBi | 789470at2759 |
PhylomeDBi | Q568P9 |
TreeFami | TF315178 |
Family and domain databases
Gene3Di | 3.40.50.150, 1 hit |
InterProi | View protein in InterPro IPR026610, Hen1 IPR029063, SAM-dependent_MTases |
PANTHERi | PTHR21404, PTHR21404, 1 hit |
SUPFAMi | SSF53335, SSF53335, 1 hit |
i Sequence
Sequence statusi: Complete.
Q568P9-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MTATPFSPPL YMQRYQFVID YVKTYRPRKV IDFGCAECCL LKKLKFHRNG
60 70 80 90 100
IQLLVGVDIN SVVLLKRMHS LAPLVSDYLQ PSDGPLTIEL YQGSVMEREP
110 120 130 140 150
CTKGFDLVTC VELIEHLELE EVERFSEVVF GYMAPGAVIV TTPNAEFNPL
160 170 180 190 200
LPGLRGFRNY DHKFEWTRAE FQTWAHRVCR EHGYSVQFTG VGEAAGHWRD
210 220 230 240 250
VGFCTQIAVF QRNFDGVNRS MSNAEHLEPS VYRLLYRVVY PSLCDNNIYQ
260 270 280 290 300
KTLINEVLYE AQHLRQQWLI RENMNNNAHF YSPPLMEALH HGAEGNACEQ
310 320 330 340 350
QPVYQQGGII CVPLARVWSC PRVQALCGSL QRLREKLLED ERVRMSADGS
360 370 380 390 400
ALNLPADDDD DNVEEEEEEE EEENQQNVKA VSGAVNNMEE DWDRELGSYG
DE
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sequence conflicti | 161 | D → G in AAH92772 (Ref. 2) Curated | 1 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | BX571790 Genomic DNA Translation: CAI11740.1 BC092772 mRNA Translation: AAH92772.1 |
RefSeqi | NP_001017842.1, NM_001017842.2 |
Genome annotation databases
Ensembli | ENSDART00000015000; ENSDARP00000004251; ENSDARG00000018871 |
GeneIDi | 550540 |
KEGGi | dre:550540 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | BX571790 Genomic DNA Translation: CAI11740.1 BC092772 mRNA Translation: AAH92772.1 |
RefSeqi | NP_001017842.1, NM_001017842.2 |
3D structure databases
AlphaFoldDBi | Q568P9 |
SMRi | Q568P9 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 7955.ENSDARP00000004251 |
Proteomic databases
PaxDbi | Q568P9 |
Genome annotation databases
Ensembli | ENSDART00000015000; ENSDARP00000004251; ENSDARG00000018871 |
GeneIDi | 550540 |
KEGGi | dre:550540 |
Organism-specific databases
CTDi | 113802 |
ZFINi | ZDB-GENE-050417-387, henmt1 |
Phylogenomic databases
eggNOGi | KOG1045, Eukaryota |
GeneTreei | ENSGT00390000004798 |
HOGENOMi | CLU_044646_0_0_1 |
InParanoidi | Q568P9 |
OMAi | QRHQFVV |
OrthoDBi | 789470at2759 |
PhylomeDBi | Q568P9 |
TreeFami | TF315178 |
Miscellaneous databases
PROi | PR:Q568P9 |
Gene expression databases
Bgeei | ENSDARG00000018871, Expressed in tail and 27 other tissues |
Family and domain databases
Gene3Di | 3.40.50.150, 1 hit |
InterProi | View protein in InterPro IPR026610, Hen1 IPR029063, SAM-dependent_MTases |
PANTHERi | PTHR21404, PTHR21404, 1 hit |
SUPFAMi | SSF53335, SSF53335, 1 hit |
MobiDBi | Search... |
Entry informationi
Entry namei | HENMT_DANRE | |
Accessioni | Q568P9Primary (citable) accession number: Q568P9 Secondary accession number(s): Q5RH79 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | September 11, 2007 |
Last sequence update: | September 11, 2007 | |
Last modified: | May 25, 2022 | |
This is version 80 of the entry and version 2 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Chordata Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- SIMILARITY comments
Index of protein domains and families