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Protein

Chromodomain-helicase-DNA-binding protein Mi-2 homolog

Gene

Mi-2

Organism
Drosophila melanogaster (Fruit fly)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

Vital role in development. Protein binds to a portion of Hunchback (HB) protein that is critical for repression of bithorax complex (BXC) genes. May also function in polycomb group (PcG) repression of Hox genes.1 Publication

Catalytic activityi

ATP + H2O = ADP + phosphate.

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Zinc fingeri377 – 424PHD-type 1PROSITE-ProRule annotationAdd BLAST48
Zinc fingeri437 – 484PHD-type 2PROSITE-ProRule annotationAdd BLAST48
Nucleotide bindingi755 – 762ATPPROSITE-ProRule annotation8

GO - Molecular functioni

  • ATPase activity Source: FlyBase
  • ATP binding Source: UniProtKB-KW
  • chromatin binding Source: FlyBase
  • DNA binding Source: FlyBase
  • helicase activity Source: FlyBase
  • nucleosome binding Source: FlyBase
  • nucleosome-dependent ATPase activity Source: FlyBase
  • zinc ion binding Source: FlyBase

GO - Biological processi

  • ATP-dependent chromatin remodeling Source: CACAO
  • chromosome condensation Source: FlyBase
  • chromosome decondensation Source: CACAO
  • chromosome organization Source: CACAO
  • negative regulation of cohesin loading Source: FlyBase
  • negative regulation of transcription, DNA-templated Source: UniProtKB
  • negative regulation of transcription by RNA polymerase II Source: FlyBase
  • nucleosome mobilization Source: FlyBase
  • regulation of transcription by RNA polymerase II Source: FlyBase
  • spermatogenesis Source: FlyBase
  • transcription, DNA-templated Source: UniProtKB-KW

Keywordsi

Molecular functionDNA-binding, Helicase, Hydrolase, Repressor
Biological processTranscription, Transcription regulation
LigandATP-binding, Metal-binding, Nucleotide-binding, Zinc

Enzyme and pathway databases

ReactomeiR-DME-3214815 HDACs deacetylate histones
R-DME-8943724 Regulation of PTEN gene transcription

Names & Taxonomyi

Protein namesi
Recommended name:
Chromodomain-helicase-DNA-binding protein Mi-2 homolog (EC:3.6.4.12)
Alternative name(s):
ATP-dependent helicase Mi-2
Short name:
dMi-2
Gene namesi
Name:Mi-2
ORF Names:CG8103
OrganismiDrosophila melanogaster (Fruit fly)
Taxonomic identifieri7227 [NCBI]
Taxonomic lineageiEukaryotaMetazoaEcdysozoaArthropodaHexapodaInsectaPterygotaNeopteraHolometabolaDipteraBrachyceraMuscomorphaEphydroideaDrosophilidaeDrosophilaSophophora
Proteomesi
  • UP000000803 Componenti: Chromosome 3L

Organism-specific databases

FlyBaseiFBgn0262519 Mi-2

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Nucleus

Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Mutagenesisi737G → D in allele MI-2-5; larval lethal. 1 Publication1

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00000802361 – 1982Chromodomain-helicase-DNA-binding protein Mi-2 homologAdd BLAST1982

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei79Phosphoserine1 Publication1
Modified residuei83Phosphoserine1 Publication1
Modified residuei201Phosphoserine1 Publication1
Modified residuei204Phosphoserine1 Publication1
Modified residuei210Phosphoserine1 Publication1
Modified residuei221Phosphoserine1 Publication1
Modified residuei284Phosphoserine1 Publication1
Modified residuei285Phosphoserine1 Publication1
Modified residuei292Phosphoserine1 Publication1
Modified residuei295Phosphoserine1 Publication1
Modified residuei299Phosphoserine1 Publication1
Modified residuei310Phosphoserine1 Publication1
Modified residuei313Phosphoserine1 Publication1
Modified residuei701Phosphotyrosine1 Publication1
Modified residuei702Phosphothreonine1 Publication1
Modified residuei1691Phosphoserine1 Publication1
Modified residuei1694Phosphoserine1 Publication1

Keywords - PTMi

Phosphoprotein

Proteomic databases

PaxDbiO97159
PRIDEiO97159

PTM databases

iPTMnetiO97159

Expressioni

Gene expression databases

BgeeiFBgn0262519
ExpressionAtlasiO97159 baseline and differential
GenevisibleiO97159 DM

Interactioni

Binary interactionsi

Show more details

Protein-protein interaction databases

BioGridi65438, 41 interactors
DIPiDIP-22862N
IntActiO97159, 226 interactors
MINTiO97159
STRINGi7227.FBpp0099808

Structurei

3D structure databases

ProteinModelPortaliO97159
SMRiO97159
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini488 – 566Chromo 1PROSITE-ProRule annotationAdd BLAST79
Domaini612 – 673Chromo 2PROSITE-ProRule annotationAdd BLAST62
Domaini742 – 924Helicase ATP-bindingPROSITE-ProRule annotationAdd BLAST183
Domaini1056 – 1218Helicase C-terminalPROSITE-ProRule annotationAdd BLAST163

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Motifi875 – 878DEAH box4

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Compositional biasi13 – 16Poly-Glu4
Compositional biasi70 – 76Poly-Lys7
Compositional biasi239 – 248Poly-Glu10
Compositional biasi1279 – 1287Poly-Glu9
Compositional biasi1672 – 1677Poly-Asp6

Sequence similaritiesi

Belongs to the SNF2/RAD54 helicase family.Curated

Zinc finger

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Zinc fingeri377 – 424PHD-type 1PROSITE-ProRule annotationAdd BLAST48
Zinc fingeri437 – 484PHD-type 2PROSITE-ProRule annotationAdd BLAST48

Keywords - Domaini

Repeat, Zinc-finger

Phylogenomic databases

eggNOGiKOG0383 Eukaryota
COG0553 LUCA
GeneTreeiENSGT00760000119067
InParanoidiO97159
KOiK11643
OrthoDBiEOG091G00G4
PhylomeDBiO97159

Family and domain databases

CDDicd00024 CHROMO, 2 hits
cd00079 HELICc, 1 hit
Gene3Di3.30.40.10, 2 hits
3.40.50.10810, 1 hit
InterProiView protein in InterPro
IPR012957 CHD_C2
IPR012958 CHD_N
IPR016197 Chromo-like_dom_sf
IPR000953 Chromo/chromo_shadow_dom
IPR023780 Chromo_domain
IPR002464 DNA/RNA_helicase_DEAH_CS
IPR009462 DUF1086
IPR009463 DUF1087
IPR014001 Helicase_ATP-bd
IPR001650 Helicase_C
IPR027417 P-loop_NTPase
IPR038718 SNF2-like_sf
IPR000330 SNF2_N
IPR019786 Zinc_finger_PHD-type_CS
IPR011011 Znf_FYVE_PHD
IPR001965 Znf_PHD
IPR019787 Znf_PHD-finger
IPR013083 Znf_RING/FYVE/PHD
PfamiView protein in Pfam
PF08074 CHDCT2, 1 hit
PF08073 CHDNT, 1 hit
PF00385 Chromo, 2 hits
PF06461 DUF1086, 1 hit
PF06465 DUF1087, 1 hit
PF00271 Helicase_C, 1 hit
PF00628 PHD, 2 hits
PF00176 SNF2_N, 1 hit
SMARTiView protein in SMART
SM00298 CHROMO, 2 hits
SM00487 DEXDc, 1 hit
SM01146 DUF1086, 1 hit
SM01147 DUF1087, 1 hit
SM00490 HELICc, 1 hit
SM00249 PHD, 2 hits
SUPFAMiSSF52540 SSF52540, 2 hits
SSF54160 SSF54160, 2 hits
SSF57903 SSF57903, 1 hit
PROSITEiView protein in PROSITE
PS50013 CHROMO_2, 2 hits
PS00690 DEAH_ATP_HELICASE, 1 hit
PS51192 HELICASE_ATP_BIND_1, 1 hit
PS51194 HELICASE_CTER, 1 hit
PS01359 ZF_PHD_1, 2 hits
PS50016 ZF_PHD_2, 2 hits

Sequencei

Sequence statusi: Complete.

O97159-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MASEEENDDN FQEEEEAQED NAPAAELSND SDAPLKPNND EDDDYDPEDS
60 70 80 90 100
RRKKKGKKRK TRKGEEKGRK KKKRKKNESE EDSDFVQHDE EVEYPSTSKR
110 120 130 140 150
GRKRKEEKQA AKEKESASSG MPSVEDVCSA FSVCNVEIEY SEEELQSLTT
160 170 180 190 200
YKAFMHHVRP ILQKENPKIA APKLVMLVAA KWREFCESNP HIQQEGGAAG
210 220 230 240 250
SGGSAGQARS VTGDEPEEPR SSRSSRNEKP DDIYEEAVEE EEEEEEEEKK
260 270 280 290 300
PRRKRSGRGK KGRRPSGKVP TLKIKLLGKR KRDSSDEEQD ASGASERDSD
310 320 330 340 350
LEFERMLQKS DDSADEKEAP VSSKADNSAP AAQDDGSGAP VVRKKAKTKI
360 370 380 390 400
GNKFKKKNKL KKTKNFPEGE DGEHEHQDYC EVCQQGGEII LCDTCPRAYH
410 420 430 440 450
LVCLEPELDE PPEGKWSCPH CEADGGAAEE EDDDEHQEFC RVCKDGGELL
460 470 480 490 500
CCDSCPSAYH TFCLNPPLDT IPDGDWRCPR CSCPPLTGKA EKIITWRWAQ
510 520 530 540 550
RSNDDGPSTS KGSKNSNSRV REYFIKWHNM SYWHCEWVPE VQLDVHHPLM
560 570 580 590 600
IRSFQRKYDM EEPPKFEESL DEADTRYKRI QRHKDKVGMK ANDDAEVLEE
610 620 630 640 650
RFYKNGVKPE WLIVQRVINH RTARDGSTMY LVKWRELPYD KSTWEEEGDD
660 670 680 690 700
IQGLRQAIDY YQDLRAVCTS ETTQSRSKKS KKGRKSKLKV EDDEDRPVKH
710 720 730 740 750
YTPPPEKPTT DLKKKYEDQP AFLEGTGMQL HPYQIEGINW LRYSWGQGID
760 770 780 790 800
TILADEMGLG KTIQTVTFLY SLYKEGHCRG PFLVAVPLST LVNWEREFEL
810 820 830 840 850
WAPDFYCITY IGDKDSRAVI RENELSFEEG AIRGSKVSRL RTTQYKFNVL
860 870 880 890 900
LTSYELISMD AACLGSIDWA VLVVDEAHRL KSNQSKFFRI LNSYTIAYKL
910 920 930 940 950
LLTGTPLQNN LEELFHLLNF LSRDKFNDLQ AFQGEFADVS KEEQVKRLHE
960 970 980 990 1000
MLGPHMLRRL KTDVLKNMPS KSEFIVRVEL SAMQKKFYKF ILTKNYEALN
1010 1020 1030 1040 1050
SKSGGGSCSL INIMMDLKKC CNHPYLFPSA AEEATTAAGG LYEINSLTKA
1060 1070 1080 1090 1100
AGKLVLLSKM LKQLKAQNHR VLIFSQMTKM LDILEDFLEG EQYKYERIDG
1110 1120 1130 1140 1150
GITGTLRQEA IDRFNAPGAQ QFVFLLSTRA GGLGINLATA DTVIIYDSDW
1160 1170 1180 1190 1200
NPHNDIQAFS RAHRIGQANK VMIYRFVTRN SVEERVTQVA KRKMMLTHLV
1210 1220 1230 1240 1250
VRPGMGGKGA NFTKQELDDI LRFGTEDLFK EDDKEEAIHY DDKAVAELLD
1260 1270 1280 1290 1300
RTNRGIEEKE SWANEYLSSF KVASYATKEE EEEEETEIIK QDAENSDPAY
1310 1320 1330 1340 1350
WVKLLRHHYE QHQEDVGRSL GKGKRVRKQV NYTDGGVVAA DTTRDDSNWQ
1360 1370 1380 1390 1400
DNGSEYNSEY SAGSDEDGGD DDFDDQNGAE RKAKRRLERR DDRPLPPLLA
1410 1420 1430 1440 1450
RVGGNIEVLG FNARQRKSFL NAIMRYGMPP QDAFNSQWLV RDLRGKSERN
1460 1470 1480 1490 1500
FKAYVSLFMR HLCEPGADNA ETFADGVPRE GLSRQHVLTR IGVMSLIRKK
1510 1520 1530 1540 1550
VQEFEHINGY YSMPELILKP CEPVRSALKQ DVAALEAPPT GGNVDKSATT
1560 1570 1580 1590 1600
SNSVTPATSA APSPAPASEK GEDKDKDSEK EKDKTSAEKS EVKQEQEAEE
1610 1620 1630 1640 1650
DKKPGDVKQE NPVEEAAGDT KPSDAEVKTE VAKTEPKEET KDPEVKEEPK
1660 1670 1680 1690 1700
TEEKEKEKVD DKKPIPPTTV IDDDDDDVMI VKEDGELEKP SASSPKDQKA
1710 1720 1730 1740 1750
VAAATSAATG ATGKGAEDSL EVLKRKFMFN IADGGFTELH TLWLNEEKAA
1760 1770 1780 1790 1800
VPGREYEIWH RRHDYWLLAG IVTHGYGRWQ DIQNDIRFAI INEPFKMDVG
1810 1820 1830 1840 1850
KGNFLEIKNK FLARRFKLLE QALVIEEQLR RAAYLNLAQD PSHPAMSLNA
1860 1870 1880 1890 1900
RFAEVECLAE SHQHLSKESL AGNKPANAVL HKVLNQLEEL LSDMKSDVSR
1910 1920 1930 1940 1950
LPATLARIPP VAQRLQMSER SILSRLAATA GNASNAAQLM AQFPAGFQGT
1960 1970 1980
TLPAFTSGPA GNFANFRPQF SVPGQLSNNS GV
Length:1,982
Mass (Da):224,201
Last modified:June 1, 2000 - v2
Checksum:iED8E256D1AD0AC2F
GO

Sequence cautioni

The sequence AAM29373 differs from that shown. Reason: Erroneous initiation.Curated

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti101G → A in AAD17276 (PubMed:9836641).Curated1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF119716 mRNA Translation: AAD17276.1
AE014296 Genomic DNA Translation: AAF49099.2
AY113368 mRNA Translation: AAM29373.1 Different initiation.
RefSeqiNP_001163476.1, NM_001170005.2
NP_649154.2, NM_140897.4
UniGeneiDm.28317

Genome annotation databases

EnsemblMetazoaiFBtr0074919; FBpp0074688; FBgn0262519
FBtr0302046; FBpp0291256; FBgn0262519
GeneIDi40170
KEGGidme:Dmel_CG8103

Similar proteinsi

Entry informationi

Entry nameiCHDM_DROME
AccessioniPrimary (citable) accession number: O97159
Secondary accession number(s): Q8MZ43, Q9VW50
Entry historyiIntegrated into UniProtKB/Swiss-Prot: February 21, 2001
Last sequence update: June 1, 2000
Last modified: May 23, 2018
This is version 173 of the entry and version 2 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programDrosophila annotation project

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

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