UniProtKB - C7BKP9 (PATOX_PHOAA)
Toxin PAU_02230
PAU_02230
Functioni
Toxin that acts on host cells by modifying Rho proteins by tyrosine GlcNAcylation and heterotrimeric G alpha proteins by deamidation. Catalyzes the mono-O-GlcNAcylation of small GTPases of the Rho family (RhoA, RhoB, RhoC, Rac1, Rac2, Rac3, Cdc42) in eukaryotic host cells at the conserved tyrosine residue located in the switch I region (Tyr-32/34), using UDP-N-acetylglucosamine (UDP-GlcNAc) as the sugar donor; other GTPases of the Rho, Ras or Rab families are not substrates. Tyrosine glycosylation inhibits Rho activation and prevents interaction with downstream effectors, resulting in actin disassembly, inhibition of phagocytosis, cell rounding, and toxicity toward insects and mammalian cells. Also catalyzes the deamidation of the catalytic glutamine in heterotrimeric G alpha proteins (Gi, Gq/11), which blocks GTP hydrolysis and arrests the G proteins in a permanent active state leading to activation of Rho GTPases. Thus, PaTox hijacks host GTPase signaling in a bidirectional manner by deamidation-induced activation and glycosylation-induced inactivation of GTPases.
1 PublicationMiscellaneous
Catalytic activityi
- EC:3.5.1.441 Publication
Cofactori
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Metal bindingi | 2276 | Divalent metal cationCombined sources1 Publication | 1 | |
Metal bindingi | 2278 | Divalent metal cationCombined sources1 Publication | 1 | |
Binding sitei | 2312 | UDP-GlcNAc1 Publication | 1 | |
Active sitei | 2509 | For deamidase activity1 Publication | 1 | |
Active sitei | 2547 | For deamidase activity1 Publication | 1 | |
Active sitei | 2562 | For deamidase activity1 Publication | 1 |
GO - Molecular functioni
- calcium ion binding Source: UniProtKB
- protein-glutamine glutaminase activity Source: UniProtKB
- protein N-acetylglucosaminyltransferase activity Source: UniProtKB
- toxin activity Source: UniProtKB-KW
GO - Biological processi
- metabolic process Source: UniProtKB-KW
- protein modification process in another organism Source: UniProtKB
- regulation of GTPase activity Source: UniProtKB
Keywordsi
Molecular function | Glycosyltransferase, Hydrolase, Multifunctional enzyme, Toxin, Transferase |
Biological process | Virulence |
Ligand | Calcium, Metal-binding |
Names & Taxonomyi
Protein namesi | Recommended name: Toxin PAU_02230CuratedAlternative name(s): Photorhabdus asymbiotica toxin1 Publication Short name: PaTox1 Publication Including the following 2 domains: Protein N-acetylglucosaminyltransferase1 Publication (EC:2.4.1.-1 Publication) Short name: Protein O-GlcNAc transferase1 Publication Alternative name(s): PaToxG1 Publication Tyrosine glycosyltransferase1 Publication Alternative name(s): Glutamine deamidase1 Publication PaToxD1 Publication Protein-glutamine glutaminaseCurated |
Gene namesi | Ordered Locus Names:PAU_02230Imported |
Organismi | Photorhabdus asymbiotica subsp. asymbiotica (strain ATCC 43949 / 3105-77) (Xenorhabdus luminescens (strain 2))Imported |
Taxonomic identifieri | 553480 [NCBI] |
Taxonomic lineagei | Bacteria › Proteobacteria › Gammaproteobacteria › Enterobacterales › Morganellaceae › Photorhabdus › |
Proteomesi |
|
Subcellular locationi
Extracellular region or secreted
- Secreted Curated
Other locations
- Host cell membrane 1 Publication; Peripheral membrane protein 1 Publication; Cytoplasmic side 1 Publication
Note: Associates with the negatively charged inner leaflet of the plasma membrane via interaction with phosphatidylserine and phosphatidylinositolphosphates. Plasma membrane localization of PaTox is essential for cytotoxicity. The glycosyltransferase domain alone is sufficient to localize at the plasma membrane.1 Publication
Extracellular region or secreted
- extracellular region Source: UniProtKB-SubCell
Other locations
- host cell plasma membrane Source: UniProtKB-SubCell
- membrane Source: UniProtKB-KW
Keywords - Cellular componenti
Host cell membrane, Host membrane, Membrane, SecretedPathology & Biotechi
Mutagenesis
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Mutagenesisi | 2134 – 2135 | RK → EE: Abrogates plasma membrane localization, resulting in a cytosolic distribution of this mutant protein. Loss of toxic activity on host cells during the first hours of incubation. No effect on glycosyltransferase activity and interaction with RhoA. 1 Publication | 2 | |
Mutagenesisi | 2139 – 2140 | RK → EE: Abrogates plasma membrane localization, resulting in a cytosolic distribution of this mutant protein. Loss of toxic activity on host cells during the first hours of incubation. No effect on glycosyltransferase activity and interaction with RhoA. 1 Publication | 2 | |
Mutagenesisi | 2170 | W → A: 7-fold reduction in glycosyltransferase activity. 1 Publication | 1 | |
Mutagenesisi | 2260 | D → A: 10000-fold reduction in glycosyltransferase activity. Reduced cell toxicity. 1 Publication | 1 | |
Mutagenesisi | 2263 | R → A: 2000-fold reduction in glycosyltransferase activity. Reduced cell toxicity. 1 Publication | 1 | |
Mutagenesisi | 2276 – 2278 | DID → NIN: Loss of glycosyltransferase activity. Reduced toxicity in insect larvae. Loss of the ability to block phagocytosis in mammalian macrophages. Loss of effect on actin skeleton. 1 Publication | 3 | |
Mutagenesisi | 2276 | D → N: 16700-fold reduction in glycosyltransferase activity. 1 Publication | 1 | |
Mutagenesisi | 2278 | D → N: 333-fold reduction in glycosyltransferase activity. 1 Publication | 1 | |
Mutagenesisi | 2279 | D → N: 700-fold reduction in glycosyltransferase activity. 1 Publication | 1 | |
Mutagenesisi | 2312 | N → A: 1.3-fold reduction in glycosyltransferase activity. 1 Publication | 1 | |
Mutagenesisi | 2509 | C → S: Loss of deamidase activity. 1 Publication | 1 |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000434568 | 1 – 2957 | Toxin PAU_02230Add BLAST | 2957 |
Proteomic databases
PRIDEi | C7BKP9 |
Structurei
Secondary structure
3D structure databases
SMRi | C7BKP9 |
ModBasei | Search... |
PDBe-KBi | Search... |
Family & Domainsi
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 949 – 968 | DisorderedSequence analysisAdd BLAST | 20 | |
Regioni | 2115 – 2449 | Tyrosine glycosyltransferase PaToxG1 PublicationAdd BLAST | 335 | |
Regioni | 2115 – 2144 | Membrane localization domain that interacts with the inner leaflet of the plasma membrane1 PublicationAdd BLAST | 30 | |
Regioni | 2169 – 2171 | UDP-GlcNAc binding1 Publication | 3 | |
Regioni | 2259 – 2260 | UDP-GlcNAc binding1 Publication | 2 | |
Regioni | 2450 – 2672 | SseI-like deamidase PaToxD1 PublicationAdd BLAST | 223 | |
Regioni | 2667 – 2705 | DisorderedSequence analysisAdd BLAST | 39 |
Motif
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Motifi | 2276 – 2279 | DxDD motif1 Publication | 4 |
Compositional bias
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Compositional biasi | 2671 – 2702 | Pro residuesSequence analysisAdd BLAST | 32 |
Domaini
Phylogenomic databases
eggNOGi | COG3774, Bacteria COG5539, Bacteria |
Family and domain databases
InterProi | View protein in InterPro IPR007577, GlycoTrfase_DXD_sugar-bd_CS IPR029044, Nucleotide-diphossugar_trans IPR028907, Tox-PLDMTX_dom |
Pfami | View protein in Pfam PF04488, Gly_transf_sug, 1 hit PF15645, Tox-PLDMTX, 1 hit |
SUPFAMi | SSF53448, SSF53448, 1 hit |
i Sequence
Sequence statusi: Complete.
10 20 30 40 50
MKGIEGVIML SHDILPEKLL VSEKKHENVG SYFSDDIGEQ SEQTEVSHFN
60 70 80 90 100
LSLDDAFDIY ADISIENQQE LKNKDNNTNI WSSLGRGDDD HNLKKIINDA
110 120 130 140 150
FKEKLPQLME YRRKGYNVIG LDKEGIKKLE GMLKAVPPEI QQPTMKNLYS
160 170 180 190 200
AAQELLNTLK QHPLLPENQD MIQQSNLVIR NLSDALEAIN AVSKVNQVEW
210 220 230 240 250
WEEVHKTNKA QSDRLIAATL EELFFKVKDK RLPGSNDDYC QQEREETERK
260 270 280 290 300
IKDLLLYDGY QLTAEHFKFG RLRKSLLAES RVTRLKLAEY LEKKSVGILT
310 320 330 340 350
AARDAKMYAM KILLAQTRNN GFNAKDLINA GQVNDRLLSF QQYARHIRAV
360 370 380 390 400
DGEIDGIILS NPLVVACIKE TNDEPAHIKI ARAILPVSEE LGTVSKVLRE
410 420 430 440 450
TKEKVQPSKP KEELNHPHQD WWNRGDELWK YIKKTSWNIK ETSVHVTQMV
460 470 480 490 500
GYEASKTASR AKHKLKESSY SESINGAVKG TALLLLDEIQ QAENRIRQIP
510 520 530 540 550
QFAWDVQEAV EQHSSVIQRT AYPDELPELS ELLNEQLKHE EARWQAVKKQ
560 570 580 590 600
SRDKLQELIA PITRLAQEKW AQDLYFQLGE ELRKERQDRW KDIQQFDEIM
610 620 630 640 650
AEAVGQFAEM ARELDSEAVR LAEHGHSGGK ELQEKVAKWL RDLSKLKGKV
660 670 680 690 700
KAGVAKITGT SLDNFSRSGM LARGMSEWAE DLKQSYLQET LQEGSAVAAE
710 720 730 740 750
LFERTLMEVV EENRTHFAKE SDPEAERFLK RLALALKHAA ENTTVYPPTP
760 770 780 790 800
EEILAGSRSL PEDIRHWAEK KVVSGAISAA FRGGFKLVTG TFSLPVRVVI
810 820 830 840 850
RGAKTGGTLY RGVRAINRSV RLGQGPATQV KSKFINQELS KTAFRLTLSL
860 870 880 890 900
SPLVAWGMAA SITAGRLYNE KDYPEKIIKN IVIDLPEELL WIGGYAGINA
910 920 930 940 950
AIRAHAEKAI QQAIQHALDE QADKLALRIN KEIAGKSADV NVEIIPQETS
960 970 980 990 1000
VSPAETAQST PEPLSDFAST SQLTMPELID IQDNNSAQQP KVRRKRDVSV
1010 1020 1030 1040 1050
ESEISIDNLN IINANTREDK VNSEIKSELR SELKRFENSD ANSPMSDVER
1060 1070 1080 1090 1100
AIFIDLFLYK NKYEVSESQQ DYKNTWLKFR RELESQENKE IKEYLRFRSI
1110 1120 1130 1140 1150
IEAYEIYDKK RLDDDTIPEA GTIIKEVIDF FQKLKKENPI TFMKLAEAMV
1160 1170 1180 1190 1200
KFQYYYEEED ENEDRYFKMA EIYYFLNKTE NEKKSKTFHL DIIDKYPNEN
1210 1220 1230 1240 1250
NRLLDEFFLN KNNNNPDLDE IIYKLQSMQE KYRESYEMLS KVENIHQVLS
1260 1270 1280 1290 1300
DDSKNEENIF LDNRIIAAQV FDGSINISLQ DKKKWLNRYD QIRNEEGSDG
1310 1320 1330 1340 1350
WKLMHIESIL INLRRINTAI NLTAMKSESA LLLIDKLLNF QKKARENILH
1360 1370 1380 1390 1400
ISETPHEDFT SYSQFKTRKE LGNDDSKYYA QFDNYKDNHD AEKEAKEILS
1410 1420 1430 1440 1450
QVVARASLSF SELFDKVESI KLFSFVYKNR DGGAPLAAPG RTVVIKFPGK
1460 1470 1480 1490 1500
DTGGLVISNL FLRNHVKRIS TKEMEDLKPL TEGMYTRATQ HRSLGSYYHI
1510 1520 1530 1540 1550
GSQSEHTNAL EILSGMNKEE LKTHLKKQGI WFGEPALFSN EYPKQENTGH
1560 1570 1580 1590 1600
LENTTLKNAI IGVSTIQNNA AANYLRSTMY ESTGWEKLGD RFIPFYEIGR
1610 1620 1630 1640 1650
RKHYDREYEI NSEQLTLDII TSIAIAYPAA RGIVATIRSS AIPSILKSGL
1660 1670 1680 1690 1700
RGSALFKSLS LELGKMGFNA SKVFGGAVYE LIEPYPINSH LNRHNVFNKV
1710 1720 1730 1740 1750
KDTAWEFHTD VGLKGGGLKD FIDRFTKEPK EITISGYKFK RIKYNQENFD
1760 1770 1780 1790 1800
TMQRMALDYA YNPDSKGKIA QAQQAYKTGK EDYNAPQYDN FNGLSLDKKI
1810 1820 1830 1840 1850
ERYISPDTDA TTKGVLAGKM NESIKDINAF QTAKDAQSWK KSANKANKVV
1860 1870 1880 1890 1900
LTPQNLYLKG KPSECLPESV LMGWALQSSQ DAKLSKMLMG IYSSNDITSN
1910 1920 1930 1940 1950
PLYKSLKELH ANGNASKFNA SATSISNINV SNLATSETKL FPTEISSVRV
1960 1970 1980 1990 2000
DAPKHTMLIS KIKNRENKIK YVFYDPNYGM AYFDKHSDMA AFFQKKMQQY
2010 2020 2030 2040 2050
DFPDDSVSFH PLDYSNVSDI KISGRNLNEI IDGEIPLLYK QEGVQLEGIT
2060 2070 2080 2090 2100
PRDGIYRVPP KNTLGVQETK HYIIVNNDIY QVEWDQTNNT WRVFDPSNTN
2110 2120 2130 2140 2150
RSRPTVPVKQ DTNGEWFKHS ETGLKGGGPI DDIRKYIARK SAIKIFNQSI
2160 2170 2180 2190 2200
NYSATKWPPE PIDKNIHMIW IGTKNISEKN IKLSIDTAKK NPDYNTSIIY
2210 2220 2230 2240 2250
DSGISGHEGA KKFMLEKFQD SNVNIIDFRK KSYFSQLKQE PSFAYYEQVI
2260 2270 2280 2290 2300
AENKYAQASD ILRLLVLKYE GGIYKDIDDI QVKGFGSLTF PKGIGVMREY
2310 2320 2330 2340 2350
APEAGKATAF PNTPIAVTKN NPIINKTLDL AVSNYQRGEK NVLKLAGPDV
2360 2370 2380 2390 2400
FTQALYQEIP GLDSKVLNAQ LYQLELAKRQ ALGVPLEKPK NFADEQLTSA
2410 2420 2430 2440 2450
EKEKINRPYQ SIRGLSGYVE NGADHSWAVD TNIPSTSTQT STIVTPLAPK
2460 2470 2480 2490 2500
TEMLPPVPSS STKSSTSAPV LQEKISYNLA TDIDATDYLN QLKQKTNINN
2510 2520 2530 2540 2550
KISSPAGQCE SLMKPVSDFM RENGFTDIRY RGMFIWNNAT EQIPMNHFVV
2560 2570 2580 2590 2600
VGKKVGKDYV FDVSAHQFEN KGMPDLNGPL ILAAEDWAKK YRGATTRKLI
2610 2620 2630 2640 2650
YYSDFKNAST ATNTYNALPR ELVLESMEGK TFITSPNWYQ TFKRTHNIHP
2660 2670 2680 2690 2700
EVTVSDPATF SLNYSVNPTA ENLSPPPPPP IPSHGQVPKT VTPPPPPMRS
2710 2720 2730 2740 2750
PLSLSQPLER LPANKTKPIG FNPGENKASF SKLEEAGKHY YKDDKSRQAA
2760 2770 2780 2790 2800
PVNTMSDFDN RYLSHTTEAP APSNVAHLAP GNIYNTKVTA KGAEKPAYDI
2810 2820 2830 2840 2850
YISKDGESLI TSSSYKVDDI TTDSKFGKPL PYSEIMFNSL KKSGVDPKNL
2860 2870 2880 2890 2900
KRSVQASIEN KVTQDVISAI GTRIQRGQVI RVSPTENPDA FYTLLGTDNC
2910 2920 2930 2940 2950
KATLHMLNQH AEEFGHKVVT SIEFKGTGYL VMNIGTSTQT STIVTPPPMP
GTSQLVQ
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | FM162591 Genomic DNA Translation: CAQ84322.1 |
Genome annotation databases
EnsemblBacteriai | CAQ84322; CAQ84322; PAU_02230 |
KEGGi | pay:PAU_02230 |
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | FM162591 Genomic DNA Translation: CAQ84322.1 |
3D structure databases
Select the link destinations: PDBei RCSB PDBi PDBji Links Updated | PDB entry | Method | Resolution (Å) | Chain | Positions | PDBsum |
4MIX | X-ray | 1.80 | A/B | 2114-2449 | [»] | |
6HV6 | X-ray | 2.00 | A | 1701-2114 | [»] | |
SMRi | C7BKP9 | |||||
ModBasei | Search... | |||||
PDBe-KBi | Search... |
Protein-protein interaction databases
STRINGi | 291112.PAU_02230 |
Proteomic databases
PRIDEi | C7BKP9 |
Genome annotation databases
EnsemblBacteriai | CAQ84322; CAQ84322; PAU_02230 |
KEGGi | pay:PAU_02230 |
Phylogenomic databases
eggNOGi | COG3774, Bacteria COG5539, Bacteria |
Family and domain databases
InterProi | View protein in InterPro IPR007577, GlycoTrfase_DXD_sugar-bd_CS IPR029044, Nucleotide-diphossugar_trans IPR028907, Tox-PLDMTX_dom |
Pfami | View protein in Pfam PF04488, Gly_transf_sug, 1 hit PF15645, Tox-PLDMTX, 1 hit |
SUPFAMi | SSF53448, SSF53448, 1 hit |
MobiDBi | Search... |
Entry informationi
Entry namei | PATOX_PHOAA | |
Accessioni | C7BKP9Primary (citable) accession number: C7BKP9 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | November 11, 2015 |
Last sequence update: | September 22, 2009 | |
Last modified: | May 25, 2022 | |
This is version 51 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
3D-structureDocuments
- PDB cross-references
Index of Protein Data Bank (PDB) cross-references