UniProtKB - Q6NXA4 (ILF3_DANRE)
Protein
Interleukin enhancer-binding factor 3 homolog
Gene
ilf3
Organism
Danio rerio (Zebrafish) (Brachydanio rerio)
Status
Functioni
RNA-binding protein that plays an essential role in the biogenesis of circular RNAs (circRNAs) which are produced by back-splicing circularization of pre-mRNAs. Within the nucleus, promotes circRNAs processing by stabilizing the regulatory elements residing in the flanking introns of the circularized exons. Plays thereby a role in the back-splicing of a subset of circRNAs. As a consequence, participates in a wide range of transcriptional and post-transcriptional processes. Binds to poly-U elements and AU-rich elements (AREs) in the 3'-UTR of target mRNAs (By similarity). Upon viral infection, ILF3 accumulates in the cytoplasm and participates in the innate antiviral response. Mechanistically, ILF3 becomes phosphorylated and activated by the double-stranded RNA-activated protein kinase/PKR which releases ILF3 from cellular mature circRNAs. In turn, unbound ILF3 molecules are able to interact with and thus inhibit viral mRNAs.By similarity
GO - Molecular functioni
- DNA binding Source: UniProtKB-KW
- double-stranded RNA binding Source: GO_Central
- mRNA 3'-UTR AU-rich region binding Source: GO_Central
- single-stranded RNA binding Source: GO_Central
GO - Biological processi
- defense response to virus Source: UniProtKB-KW
Keywordsi
Molecular function | DNA-binding, RNA-binding |
Biological process | Antiviral defense, Transcription, Transcription regulation |
Names & Taxonomyi
Protein namesi | Recommended name: Interleukin enhancer-binding factor 3 homolog |
Gene namesi | Name:ilf3 ORF Names:zgc:77030 |
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-030131-587, ilf3b |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000126073 | 1 – 833 | Interleukin enhancer-binding factor 3 homologAdd BLAST | 833 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Modified residuei | 70 | Phosphothreonine1 Publication | 1 |
Keywords - PTMi
PhosphoproteinProteomic databases
PaxDbi | Q6NXA4 |
PTM databases
iPTMneti | Q6NXA4 |
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 11 – 379 | DZFPROSITE-ProRule annotationAdd BLAST | 369 | |
Domaini | 402 – 471 | DRBM 1PROSITE-ProRule annotationAdd BLAST | 70 | |
Domaini | 527 – 593 | DRBM 2PROSITE-ProRule annotationAdd BLAST | 67 |
Compositional bias
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Compositional biasi | 387 – 391 | Poly-Lys | 5 | |
Compositional biasi | 602 – 605 | Poly-Lys | 4 | |
Compositional biasi | 612 – 824 | Gly-richAdd BLAST | 213 | |
Compositional biasi | 758 – 761 | Poly-Gly | 4 | |
Compositional biasi | 765 – 768 | Poly-Gly | 4 |
Keywords - Domaini
RepeatPhylogenomic databases
eggNOGi | KOG3792, Eukaryota |
InParanoidi | Q6NXA4 |
OrthoDBi | 612611at2759 |
PhylomeDBi | Q6NXA4 |
Family and domain databases
Gene3Di | 3.30.460.10, 2 hits |
InterProi | View protein in InterPro IPR014720, dsRBD_dom IPR006561, DZF_dom IPR033099, ILF3/NF90 IPR043519, NT_sf |
PANTHERi | PTHR45762:SF4, PTHR45762:SF4, 3 hits |
Pfami | View protein in Pfam PF00035, dsrm, 2 hits PF07528, DZF, 1 hit |
SMARTi | View protein in SMART SM00358, DSRM, 2 hits SM00572, DZF, 1 hit |
PROSITEi | View protein in PROSITE PS50137, DS_RBD, 2 hits PS51703, DZF, 1 hit |
(1+)i Sequence
Sequence statusi: Complete.
This entry has 1 described isoform and 6 potential isoforms that are computationally mapped.Show allAlign All
Q6NXA4-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MPPPLRHRSM RIFVNDDRHV MAKHSAIYPT QEELEGVQNM VSHTERALKL
60 70 80 90 100
VSDWLDDQEK GNAKVNALDT DGEGDKETEP STGEQATRSL RGVMRVGLVA
110 120 130 140 150
KGLLLKGDLD LELVLLCKEK PTITLLKKVS DNLAVQLKQL VTEEKYDVKP
160 170 180 190 200
CIRDATIVIK NAKEPPLTLT IHLTSPLVRE EVEKQAAGET LSVIDPPDVL
210 220 230 240 250
DRQKCLTALA SLRHAKWFQA RANGLRSCVI VIRILRDLCA RVPTWSPLRG
260 270 280 290 300
WPLELLCEKA IGTGNRPMGA GEALRRVLEC LASGILMADG SGICDPCEKE
310 320 330 340 350
LTDAISHVDR QQREDITQSA QHALRLSAFG QLHKVLGMDP LPSKMPRKPR
360 370 380 390 400
SDTPIDYTVQ IPPSTTYVPP MKRPIEEEST DEKNPNKKKK KLQKKSPDEK
410 420 430 440 450
AEPAQAMNAL MRLNQLKPGL QYKLISQTGP VHVPVFTMSV EVDGKNFEAS
460 470 480 490 500
GPSKRTAKLH VAVKVLQDMG LPTGMDQKTT ELMKVDEPVS TQETLPPVIK
510 520 530 540 550
MEPEPVPITE TPTDENARQQ GPILTKHGKN PVMELNEKRR GLKYELISET
560 570 580 590 600
GGSHDKRFVM EVEIDGQKFQ GTGSNKKVAK AYAALAALEK LFPEGSNSEV
610 620 630 640 650
NKKKKMPPMH TGFGMVSGPP SDMMPNPRGR GRGRGRGRGR GFNNGGGFNQ
660 670 680 690 700
GGYGTYGYGG NNSGYNFYNN GGSNGGSVAS NQGTNQSSGG AAATGGFGSY
710 720 730 740 750
YQSDSSYTSP APTPKPVGKK PPMHQNTKPQ APGVGQGGSY GQYNQGYGQK
760 770 780 790 800
KNFGQTQGGG GAAAGGGGNF NYSTAYPSQV TGGQEYNYEG YSNQSNYNSQ
810 820 830
GGANQNFGGN SAPYNSGQAG YGRGDPNMNY QYR
Computationally mapped potential isoform sequencesi
There are 6 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basketA0A0R4IUQ9 | A0A0R4IUQ9_DANRE | Interleukin enhancer-binding factor... | ilf3b | 833 | Annotation score: | ||
A0A0R4IPU4 | A0A0R4IPU4_DANRE | Interleukin enhancer-binding factor... | ilf3b | 243 | Annotation score: | ||
A0A0R4IBM8 | A0A0R4IBM8_DANRE | Interleukin enhancer-binding factor... | ilf3b | 218 | Annotation score: | ||
A0A0R4IBR5 | A0A0R4IBR5_DANRE | Interleukin enhancer-binding factor... | ilf3b | 191 | Annotation score: | ||
A0A0R4IHG8 | A0A0R4IHG8_DANRE | Interleukin enhancer-binding factor... | ilf3b | 308 | Annotation score: | ||
A0A0R4IRK1 | A0A0R4IRK1_DANRE | Interleukin enhancer-binding factor... | ilf3b | 214 | Annotation score: |
Sequence cautioni
The sequence AAH47175 differs from that shown. Contaminating sequence. Potential poly-A sequence.Curated
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sequence conflicti | 218 | F → Y in AAH47175 (Ref. 1) Curated | 1 | |
Sequence conflicti | 262 | G → V in AAH47175 (Ref. 1) Curated | 1 | |
Sequence conflicti | 491 | T → A in AAH67172 (Ref. 1) Curated | 1 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | BC047175 mRNA Translation: AAH47175.1 Sequence problems. BC067172 mRNA Translation: AAH67172.1 |
RefSeqi | NP_997764.1, NM_212599.1 |
Genome annotation databases
GeneIDi | 321868 |
KEGGi | dre:321868 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | BC047175 mRNA Translation: AAH47175.1 Sequence problems. BC067172 mRNA Translation: AAH67172.1 |
RefSeqi | NP_997764.1, NM_212599.1 |
3D structure databases
SMRi | Q6NXA4 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 7955.ENSDARP00000019087 |
PTM databases
iPTMneti | Q6NXA4 |
Proteomic databases
PaxDbi | Q6NXA4 |
Genome annotation databases
GeneIDi | 321868 |
KEGGi | dre:321868 |
Organism-specific databases
CTDi | 321868 |
ZFINi | ZDB-GENE-030131-587, ilf3b |
Phylogenomic databases
eggNOGi | KOG3792, Eukaryota |
InParanoidi | Q6NXA4 |
OrthoDBi | 612611at2759 |
PhylomeDBi | Q6NXA4 |
Miscellaneous databases
PROi | PR:Q6NXA4 |
Family and domain databases
Gene3Di | 3.30.460.10, 2 hits |
InterProi | View protein in InterPro IPR014720, dsRBD_dom IPR006561, DZF_dom IPR033099, ILF3/NF90 IPR043519, NT_sf |
PANTHERi | PTHR45762:SF4, PTHR45762:SF4, 3 hits |
Pfami | View protein in Pfam PF00035, dsrm, 2 hits PF07528, DZF, 1 hit |
SMARTi | View protein in SMART SM00358, DSRM, 2 hits SM00572, DZF, 1 hit |
PROSITEi | View protein in PROSITE PS50137, DS_RBD, 2 hits PS51703, DZF, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | ILF3_DANRE | |
Accessioni | Q6NXA4Primary (citable) accession number: Q6NXA4 Secondary accession number(s): Q802W3 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | April 12, 2005 |
Last sequence update: | April 12, 2005 | |
Last modified: | April 7, 2021 | |
This is version 101 of the entry and version 2 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Chordata Protein Annotation Program |