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UniProtKB/Swiss-Prot entry Q9BYX4


[Entry info] [Name and origin] [References] [Comments] [Cross-references] [Keywords] [Features] [Sequence] [Tools]

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Entry information
Entry name IFIH1_HUMAN
Primary accession number Q9BYX4
Secondary accession numbers Q2NKL6 Q6DC96 Q86X56 Q96MX8 Q9H3G6
Integrated into Swiss-Prot on April 12, 2005
Sequence was last modified on March 20, 2007 (Sequence version 3)
Annotations were last modified on    June 16, 2009 (Entry version 70)
Name and origin of the protein
Protein name Interferon-induced helicase C domain-containing protein 1
Synonyms EC 3.6.1.-
Interferon-induced with helicase C domain protein 1
Helicase with 2 CARD domains
Helicard
Melanoma differentiation-associated protein 5
MDA-5
RNA helicase-DEAD box protein 116
Murabutide down-regulated protein
Gene name
Name: IFIH1
Synonyms: MDA5, RH116
From
Homo sapiens (Human) [TaxID: 9606] 
Taxonomy Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.
Protein existence 1: Evidence at protein level;
References
[1]
NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), INDUCTION, SUBCELLULAR LOCATION, AND TISSUE SPECIFICITY.
TISSUE=Melanoma;
DOI=10.1073/pnas.022637199; PubMed=11805321 [NCBI, ExPASy, EBI, Israel, Japan]
Kang D.-C., Gopalkrishnan R.V., Wu Q., Jankowsky E., Pyle A.M., Fisher P.B.;
"mda-5: an interferon-inducible putative RNA helicase with double-stranded RNA-dependent ATPase activity and melanoma growth-suppressive properties.";
Proc. Natl. Acad. Sci. U.S.A. 99:637-642(2002).
[2]
NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), FUNCTION, SUBCELLULAR LOCATION, TISSUE SPECIFICITY, AND VARIANT ARG-843.
TISSUE=Spleen;
DOI=10.1099/vir.0.19300-0; PubMed=14645903 [NCBI, ExPASy, EBI, Israel, Japan]
Cocude C., Truong M.-J., Billaut-Mulot O., Delsart V., Darcissac E., Capron A., Mouton Y., Bahr G.M.;
"A novel cellular RNA helicase, RH116, differentially regulates cell growth, programmed cell death and human immunodeficiency virus type 1 replication.";
J. Gen. Virol. 84:3215-3225(2003).
[3]
NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS 1 AND 2), AND VARIANTS ARG-843 AND THR-946.
TISSUE=Uterus;
DOI=10.1101/gr.2596504; PubMed=15489334 [NCBI, ExPASy, EBI, Israel, Japan]
The MGC Project Team;
"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).";
Genome Res. 14:2121-2127(2004).
[4]
NUCLEOTIDE SEQUENCE [MRNA] OF 475-1025 (ISOFORM 1), AND VARIANTS ARG-843 AND THR-946.
DOI=10.1038/ng1285; PubMed=14702039 [NCBI, ExPASy, EBI, Israel, Japan]
Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S., Yamamoto J., Saito K., Kawai Y., Isono Y., Nakamura Y., Nagahari K., Murakami K., Yasuda T., Iwayanagi T., Wagatsuma M., Shiratori A., Sudo H., Hosoiri T., Kaku Y., Kodaira H., Kondo H., Sugawara M., Takahashi M., Kanda K., Yokoi T., Furuya T., Kikkawa E., Omura Y., Abe K., Kamihara K., Katsuta N., Sato K., Tanikawa M., Yamazaki M., Ninomiya K., Ishibashi T., Yamashita H., Murakawa K., Fujimori K., Tanai H., Kimata M., Watanabe M., Hiraoka S., Chiba Y., Ishida S., Ono Y., Takiguchi S., Watanabe S., Yosida M., Hotuta T., Kusano J., Kanehori K., Takahashi-Fujii A., Hara H., Tanase T.-O., Nomura Y., Togiya S., Komai F., Hara R., Takeuchi K., Arita M., Imose N., Musashino K., Yuuki H., Oshima A., Sasaki N., Aotsuka S., Yoshikawa Y., Matsunawa H., Ichihara T., Shiohata N., Sano S., Moriya S., Momiyama H., Satoh N., Takami S., Terashima Y., Suzuki O., Nakagawa S., Senoh A., Mizoguchi H., Goto Y., Shimizu F., Wakebe H., Hishigaki H., Watanabe T., Sugiyama A., Takemoto M., Kawakami B., Yamazaki M., Watanabe K., Kumagai A., Itakura S., Fukuzumi Y., Fujimori Y., Komiyama M., Tashiro H., Tanigami A., Fujiwara T., Ono T., Yamada K., Fujii Y., Ozaki K., Hirao M., Ohmori Y., Kawabata A., Hikiji T., Kobatake N., Inagaki H., Ikema Y., Okamoto S., Okitani R., Kawakami T., Noguchi S., Itoh T., Shigeta K., Senba T., Matsumura K., Nakajima Y., Mizuno T., Morinaga M., Sasaki M., Togashi T., Oyama M., Hata H., Watanabe M., Komatsu T., Mizushima-Sugano J., Satoh T., Shirai Y., Takahashi Y., Nakagawa K., Okumura K., Nagase T., Nomura N., Kikuchi H., Masuho Y., Yamashita R., Nakai K., Yada T., Nakamura Y., Ohara O., Isogai T., Sugano S.;
"Complete sequencing and characterization of 21,243 full-length human cDNAs.";
Nat. Genet. 36:40-45(2004).
[5]
MUTAGENESIS OF ASP-251 AND GLU-444, AND TISSUE SPECIFICITY.
DOI=10.1016/S0960-9822(02)00842-4; PubMed=12015121 [NCBI, ExPASy, EBI, Israel, Japan]
Kovacsovics M., Martinon F., Micheau O., Bodmer J.-L., Hofmann K., Tschopp J.;
"Overexpression of Helicard, a CARD-containing helicase cleaved during apoptosis, accelerates DNA degradation.";
Curr. Biol. 12:838-843(2002).
[6]
ERRATUM.
Kovacsovics M., Martinon F., Micheau O., Bodmer J.-L., Hofmann K., Tschopp J.;
Curr. Biol. 12:1633-1633(2002).
[7]
INTERACTION WITH PARAMYXOVIRUSES V PROTEIN.
DOI=10.1073/pnas.0407639101; PubMed=15563593 [NCBI, ExPASy, EBI, Israel, Japan]
Andrejeva J., Childs K.S., Young D.F., Carlos T.S., Stock N., Goodbourn S., Randall R.E.;
"The V proteins of paramyxoviruses bind the IFN-inducible RNA helicase, mda-5, and inhibit its activation of the IFN-beta promoter.";
Proc. Natl. Acad. Sci. U.S.A. 101:17264-17269(2004).
[8]
INTERACTION WITH MAVS.
DOI=10.1038/ni1243; PubMed=16127453 [NCBI, ExPASy, EBI, Israel, Japan]
Kawai T., Takahashi K., Sato S., Coban C., Kumar H., Kato H., Ishii K.J., Takeuchi O., Akira S.;
"IPS-1, an adaptor triggering RIG-I- and Mda5-mediated type I interferon induction.";
Nat. Immunol. 6:981-988(2005).
[9]
INTERACTION WITH MAVS.
DOI=10.1038/nature04193; PubMed=16177806 [NCBI, ExPASy, EBI, Israel, Japan]
Meylan E., Curran J., Hofmann K., Moradpour D., Binder M., Bartenschlager R., Tschopp J.;
"Cardif is an adaptor protein in the RIG-I antiviral pathway and is targeted by hepatitis C virus.";
Nature 437:1167-1172(2005).
[10]
IDENTIFICATION [LARGE SCALE ANALYSIS], AND MASS SPECTROMETRY.
Colinge J., Superti-Furga G., Bennett K.L.;
Submitted (OCT-2008) to UniProtKB.
[11]
VARIANT THR-946, AND ASSOCIATION WITH INSULIN-DEPENDENT DIABETES MELLITUS 19.
DOI=10.1038/ng1800; PubMed=16699517 [NCBI, ExPASy, EBI, Israel, Japan]
Smyth D.J., Cooper J.D., Bailey R., Field S., Burren O., Smink L.J., Guja C., Ionescu-Tirgoviste C., Widmer B., Dunger D.B., Savage D.A., Walker N.M., Clayton D.G., Todd J.A.;
"A genome-wide association study of nonsynonymous SNPs identifies a type 1 diabetes locus in the interferon-induced helicase (IFIH1) region.";
Nat. Genet. 38:617-619(2006).
Comments
  • FUNCTION: RNA helicase that, through its ATP-dependent unwinding of RNA, may function to promote message degradation by specific RNases. Seems to have growth suppressive properties. Involved in innate immune defense against viruses. Upon interaction with intracellular dsRNA produced during viral replication, triggers a transduction cascade involving MAVS/IPS1, which results in the activation of NF-kappa-B, IRF3 and IRF7 and the induction of the expression of antiviral cytokines such as IFN-beta and RANTES (CCL5). ATPase activity is specifically induced by dsRNA. Essential for the production of interferons in response to picornaviruses.
  • SUBUNIT: Interacts with MAVS. Interacts with V protein of Simian virus 5, Human parainfluenza virus 2, Mumps virus, Sendai virus and Hendra virus. Binding to paramyxoviruses V proteins prevents IFN-beta induction, and the further establishment of an antiviral state.
  • SUBCELLULAR LOCATION: Cytoplasm. Nucleus (Potential). Note=May be found in the nucleus, during apoptosis.
  • ALTERNATIVE PRODUCTS: 2 named isoforms [FASTA] produced by alternative splicing.
    Name1
    Isoform IDQ9BYX4-1
    This is the isoform sequence displayed in this entry.
    Name2
    Isoform IDQ9BYX4-2
    Note: No experimental confirmation available.
    Features which should be applied to build the isoform sequence: VSP_013337, VSP_013338.
  • TISSUE SPECIFICITY: Widely expressed, at a low level. Expression is detected at slightly highest levels in placenta, pancreas and spleen and at barely levels in detectable brain, testis and lung.
  • INDUCTION: By IFN-beta and TNF-alpha.
  • PTM: During apoptosis, processed into 3 cleavage products. The helicase-containing fragment, once liberated from the CARD domains, translocate from the cytoplasm to the nucleus. The processed protein significantly sensitizes cells to DNA degradation (By similarity).
  • DISEASE: Genetic variation in IFIH1 is associated with insulin-dependent diabetes mellitus 19 (IDDM19) [MIM:610155].
  • MISCELLANEOUS: In HIV-1 infected HeLa-CD4 cells, overexpression of IFIH1 results in a great increase in the level of secreted viral p24 protein.
  • SIMILARITY: Belongs to the helicase family.
  • SIMILARITY: Contains 2 CARD domains.
  • SIMILARITY: Contains 1 helicase ATP-binding domain.
  • SIMILARITY: Contains 1 helicase C-terminal domain.
  • SEQUENCE CAUTION:
    • Sequence=AAH78180.1; Type=Miscellaneous discrepancy; Note=Contaminating sequence. Potential poly-A sequence
Copyright
Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms. Distributed under the Creative Commons Attribution-NoDerivs License.
Cross-references
Sequence databases
EMBL
AF095844; AAG34368.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AY017378; AAG54076.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC046208; AAH46208.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC078180; AAH78180.1; ALT_SEQ; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC111750; AAI11751.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AK056293; BAB71141.1; ALT_INIT; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
IPI IPI00005577; -.
IPI00556546; -.
RefSeq NP_071451.2; -.
UniGene Hs.163173
3D structure databases
PDB
2RQB; NMR; -; A=896-1025.[ExPASy / RCSB / EBI]
3B6E; X-ray; 1.60 A; A=277-490.[ExPASy / RCSB / EBI]
3GA3; X-ray; 1.45 A; A=893-1017.[ExPASy / RCSB / EBI]
Detailed list of linked structures.
PDBsum 2RQB; -.
3B6E; -.
3GA3; -.
ModBase Q9BYX4.
PTM databases
PhosphoSite Q9BYX4; -.
Organism-specific databases
GeneCards GC02M162831; -.
H-InvDB HIX0002549; -.
HGNC HGNC:18873; IFIH1.
GenAtlas IFIH1.
HPA HPA002656; -.
MIM 606951; gene. [NCBI / EBI]
610155; phenotype. [NCBI / EBI]
PharmGKB PA134889215; -.
Gene expression databases
ArrayExpress Q9BYX4; -.
Bgee Q9BYX4; -.
CleanEx HS_IFIH1; -.
GermOnline ENSG00000115267; Homo sapiens.
Ontologies
GO
GO:0005737; Cellular component: cytoplasm (inferred from direct assay from HPA).
GO:0005634; Cellular component: nucleus (inferred from electronic annotation from UniProtKB-SubCell).
GO:0005524; Molecular function: ATP binding (inferred from electronic annotation from UniProtKB-KW).
GO:0003677; Molecular function: DNA binding (inferred from electronic annotation from InterPro).
GO:0004386; Molecular function: helicase activity (inferred from electronic annotation from UniProtKB-KW).
GO:0005515; Molecular function: protein binding (inferred from electronic annotation from InterPro).
GO:0003723; Molecular function: RNA binding (inferred from electronic annotation from UniProtKB-KW).
GO:0045087; Biological process: innate immune response (inferred from electronic annotation from UniProtKB-KW).
GO:0044419; Biological process: interspecies interaction between organisms (inferred from electronic annotation from UniProtKB-KW).
GO:0042981; Biological process: regulation of apoptosis (inferred from electronic annotation from InterPro).
GO:0009615; Biological process: response to virus (inferred from electronic annotation from UniProtKB-KW).
QuickGo view.
Family and domain databases
InterPro IPR001315; CARD.
IPR014001; DEAD-like_N.
IPR001650; DNA/RNA_helicase_C.
IPR014021; Helicase_SF1/SF2_ATP-bd.
IPR006935; Restrct_endonuc_I_R/III_Res.
Graphical view of domain structure.
Pfam PF00619; CARD; 1.
PF00271; Helicase_C; 1.
PF04851; ResIII; 1.
Pfam graphical view of domain structure.
SMART SM00487; DEXDc; 1.
SM00490; HELICc; 1.
SMART graphical view of domain structure.
PROSITE PS50209; CARD; FALSE_NEG.
PS51192; HELICASE_ATP_BIND_1; 1.
PS51194; HELICASE_CTER; 1.
PROSITE graphical view of domain structure (profiles).
Genome annotation databases
Ensembl ENSG00000115267; Homo sapiens. [Contig view]
GeneID 64135; -.
KEGG hsa:64135; -.
Phylogenomic databases
HOGENOM Q9BYX4; -.
HOVERGEN Q9BYX4; -.
OMA Q9BYX4; ENEKFAE.
Other
NextBio 66034; -.
SOURCE IFIH1; Homo sapiens.
ProtoNet Q9BYX4.
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
3D-structure; Alternative splicing; Antiviral defense; ATP-binding; Cytoplasm; Diabetes mellitus; Helicase; Host-virus interaction; Hydrolase; Immune response; Innate immunity; Nucleotide-binding; Nucleus; Phosphoprotein; Polymorphism; Repeat; RNA-binding.
Features
SEVIEWER logo Feature table viewer FT aligner logo Feature aligner
KeyFrom   To Length Description FTId
CHAIN   1   1025  1025     Interferon-induced helicase C domain-containing protein 1. PRO_0000102012
DOMAIN   7     97  91     CARD 1. 
DOMAIN   110    190  81     CARD 2. 
DOMAIN   316    509  194     Helicase ATP-binding. 
DOMAIN   700    882  183     Helicase C-terminal. 
SITE   208    209  2     Cleavage (By similarity). 
SITE   216    217  2     Cleavage (By similarity). 
SITE   251    252  2     Cleavage (By similarity). 
MOD_RES   289    289        Phosphoserine (By similarity). 
MOD_RES   301    301        Phosphoserine (By similarity). 
MOD_RES   645    645        Phosphoserine (By similarity). 
VAR_SEQ   208    221        EIENLSQVDGPQVE -> GICNFTEEDSSNSA (in isoform 2). VSP_013337
VAR_SEQ   222   1025        Missing (in isoform 2). VSP_013338
VARIANT   460    460  1     H -> R (in dbSNP:rs10930046 [NCBI]). VAR_031226 
VARIANT   843    843  1     H -> R (in dbSNP:rs3747517 [NCBI]). VAR_021594 
VARIANT   946    946  1     A -> T (associated with susceptibility to insulin-dependent diabetes mellitus; dbSNP:rs1990760 [NCBI]). VAR_021595 
MUTAGEN   251    251        D->A: No cleavage and no acceleration of DNA degradation. 
MUTAGEN   444    444        E->A: No acceleration of DNA degradation, no binding to ATP, and no helicase activity. 
CONFLICT   439    439        L -> F (in Ref. 2; AAG54076). 
CONFLICT   475    475        N -> H (in Ref. 4; BAB71141). 
CONFLICT   592    592        E -> K (in Ref. 1; AAG34368). 
CONFLICT   598    598        R -> S (in Ref. 2; AAG54076). 
CONFLICT   609    609        E -> K (in Ref. 2; AAG54076). 
CONFLICT   782    782        K -> R (in Ref. 4; BAB71141). 
HELIX   293    299  7      
HELIX   310    320  11      
STRAND   325    328  4      
HELIX   332    352  21      
STRAND   359    365  7      
HELIX   366    375  10      
HELIX   377    381  5      
TURN   382    384  3      
STRAND   387    389  3      
HELIX   400    406  7      
STRAND   408    413  6      
HELIX   414    422  9      
HELIX   434    436  3      
STRAND   438    442  5      
HELIX   454    473  20      
STRAND   483    488  6      
Sequence information
Length: 1025 AA [This is the length of the unprocessed precursor] Molecular weight: 116689 Da [This is the MW of the unprocessed precursor] CRC64: 789CFB4824B92DC9 [This is a checksum on the sequence]
        10         20         30         40         50         60 
MSNGYSTDEN FRYLISCFRA RVKMYIQVEP VLDYLTFLPA EVKEQIQRTV ATSGNMQAVE 

        70         80         90        100        110        120 
LLLSTLEKGV WHLGWTREFV EALRRTGSPL AARYMNPELT DLPSPSFENA HDEYLQLLNL 

       130        140        150        160        170        180 
LQPTLVDKLL VRDVLDKCME EELLTIEDRN RIAAAENNGN ESGVRELLKR IVQKENWFSA 

       190        200        210        220        230        240 
FLNVLRQTGN NELVQELTGS DCSESNAEIE NLSQVDGPQV EEQLLSTTVQ PNLEKEVWGM 

       250        260        270        280        290        300 
ENNSSESSFA DSSVVSESDT SLAEGSVSCL DESLGHNSNM GSDSGTMGSD SDEENVAARA 

       310        320        330        340        350        360 
SPEPELQLRP YQMEVAQPAL EGKNIIICLP TGSGKTRVAV YIAKDHLDKK KKASEPGKVI 

       370        380        390        400        410        420 
VLVNKVLLVE QLFRKEFQPF LKKWYRVIGL SGDTQLKISF PEVVKSCDII ISTAQILENS 

       430        440        450        460        470        480 
LLNLENGEDA GVQLSDFSLI IIDECHHTNK EAVYNNIMRH YLMQKLKNNR LKKENKPVIP 

       490        500        510        520        530        540 
LPQILGLTAS PGVGGATKQA KAEEHILKLC ANLDAFTIKT VKENLDQLKN QIQEPCKKFA 

       550        560        570        580        590        600 
IADATREDPF KEKLLEIMTR IQTYCQMSPM SDFGTQPYEQ WAIQMEKKAA KEGNRKERVC 

       610        620        630        640        650        660 
AEHLRKYNEA LQINDTIRMI DAYTHLETFY NEEKDKKFAV IEDDSDEGGD DEYCDGDEDE 

       670        680        690        700        710        720 
DDLKKPLKLD ETDRFLMTLF FENNKMLKRL AENPEYENEK LTKLRNTIME QYTRTEESAR 

       730        740        750        760        770        780 
GIIFTKTRQS AYALSQWITE NEKFAEVGVK AHHLIGAGHS SEFKPMTQNE QKEVISKFRT 

       790        800        810        820        830        840 
GKINLLIATT VAEEGLDIKE CNIVIRYGLV TNEIAMVQAR GRARADESTY VLVAHSGSGV 

       850        860        870        880        890        900 
IEHETVNDFR EKMMYKAIHC VQNMKPEEYA HKILELQMQS IMEKKMKTKR NIAKHYKNNP 

       910        920        930        940        950        960 
SLITFLCKNC SVLACSGEDI HVIEKMHHVN MTPEFKELYI VRENKALQKK CADYQINGEI 

       970        980        990       1000       1010       1020 
ICKCGQAWGT MMVHKGLDLP CLKIRNFVVV FKNNSTKKQY KKWVELPITF PNLDYSECCL 


FSDED 

Q9BYX4 in FASTA format

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