Multi-tiered actions of Legionella effectors to modulate host Rab10 dynamics

  1. Tomoko Kubori  Is a corresponding author
  2. Kohei Arasaki
  3. Hiromu Oide
  4. Tomoe Kitao
  5. Hiroki Nagai  Is a corresponding author
  1. Department of Microbiology, Graduate School of Medicine, Gifu University, Japan
  2. School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Japan
  3. Center for One Medicine Innovative Translational Research (COMIT), Gifu University, Japan
7 figures, 1 table and 3 additional files

Figures

Figure 1 with 1 supplement
The SidE- and SidC-family proteins differentially contribute toward ubiquitination of Rab10.

HEK293T-FcγRII cells transiently expressing 3xFLAG-Rab10 and HA-Ub were infected with the indicated L. pneumophila strains for 1 hr at a multiplicity of infection (MOI) of 20. Rab10 was isolated …

Figure 1—source data 1

Original files for the western blot analysis in Figure 1a (anti-FLAG and anti-HA).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig1-data1-v1.zip
Figure 1—source data 2

PDF containing Figure 1a and original scans of the relevant western blot analysis (anti-FLAG and anti-HA), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig1-data2-v1.pdf
Figure 1—source data 3

Original files for the western blot analysis in Figure 1b (anti-FLAG, anti-HA, and anti-Myc).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig1-data3-v1.zip
Figure 1—source data 4

PDF containing Figure 1b and original scans of the relevant western blot analysis (anti-FLAG, anti-HA, and anti-Myc), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig1-data4-v1.pdf
Figure 1—source data 5

Original files for the western blot analysis in Figure 1c (anti-FLAG and anti-HA).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig1-data5-v1.zip
Figure 1—source data 6

PDF containing Figure 1c and original scans of the relevant western blot analysis (anti-FLAG and anti-HA), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig1-data6-v1.pdf
Figure 1—figure supplement 1
Mutation of Lys102, Lys136, and Lys154 on Rab10 did not eliminate ubiquitination of Rab10 upon infection.

HEK293T-FcγRII cells transiently expressing 3xFLAG-Rab10 or 3xFLAG-Rab10 K102A K136A L154A (KKK) (a) with HA-Ub were infected with the indicated L. pneumophila strains for 1 hr (a) or 7 hr (b) at an …

Figure 1—figure supplement 1—source data 1

Original files for the western blot analysis in Figure 1—figure supplement 1a (anti-FLAG and anti-HA).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig1-figsupp1-data1-v1.zip
Figure 1—figure supplement 1—source data 2

PDF containing Figure 1—figure supplement 1a and original scans of the relevant western blot analysis (anti-FLAG and anti-HA), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig1-figsupp1-data2-v1.pdf
Figure 1—figure supplement 1—source data 3

Original files for the western blot analysis in Figure 1—figure supplement 1b (anti-FLAG and anti-HA).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig1-figsupp1-data3-v1.zip
Figure 1—figure supplement 1—source data 4

PDF containing Figure 1—figure supplement 1b and original scans of the relevant western blot analysis (anti-FLAG and anti-HA), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig1-figsupp1-data4-v1.pdf
The SidE- and SidC-family proteins differentially contribute toward recruitment of Rab10 to the Legionella-containing vacuole (LCV).

HeLa-FcγRII cells transiently expressing RFP-Rab10 were infected with the indicated L. pneumophila strains at an MOI of 5 for 4 hr (a) and for the indicated time (b). (a) Representative images of …

SdcB associates with the Legionella-containing vacuole (LCV) and plays a major role in Ub recruitment to the LCV at late stages of infection.

HeLa-FcγRII cells were infected with the indicated L. pneumophila strains at an MOI of 2 for 1 hr (a, b) and for 7 hr (c, d). (a, c) Representative images of infected cells. Fixed cells were stained …

Figure 4 with 2 supplements
The catalytic activity of SdcB enhances retention of Rab10 on the Legionella-containing vacuole (LCV).

(a) HEK293T-FcγRII cells transiently expressing 3xFLAG-Rab10 Q68L (QL) or Rab10 T23N (TN) with HA-Ub were infected with the indicated L. pneumophila strains for 1 hr at an MOI of 50. Rab10 was …

Figure 4—source data 1

Original files for the western blot analysis in Figure 4a (anti-FLAG).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig4-data1-v1.zip
Figure 4—source data 2

PDF containing Figure 4a and an original scan of the relevant western blot analysis (anti-FLAG), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig4-data2-v1.pdf
Figure 4—source data 3

Original files for the western blot analysis in Figure 4c (anti-FLAG, anti-HA, and anti-Myc).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig4-data3-v1.zip
Figure 4—source data 4

PDF containing Figure 4c and original scans of the relevant western blot analysis (anti-FLAG, anti-HA, and anti-Myc), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig4-data4-v1.pdf
Figure 4—source data 5

Raw images of micrographs in Figure 4d.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig4-data5-v1.zip
Figure 4—source data 6

Counting data in Figure 4b, e.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig4-data6-v1.zip
Figure 4—figure supplement 1
Active Rab10 is preferentially targeted for infection-induced ubiquitination.

HEK293T-FcγRII cells transiently expressing 3xFLAG-Rab10 Q68L (QL) or Rab10 T23N (TN) with HA-Ub were infected with the wild-type L. pneumophila strain or treated with media containing anti-Legionell…

Figure 4—figure supplement 1—source data 1

Original files for the western blot analysis in Figure 4—figure supplement 1 (anti-FLAG and anti-HA).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig4-figsupp1-data1-v1.zip
Figure 4—figure supplement 1—source data 2

PDF containing Figure 4—figure supplement 1 and original scans of the relevant western blot analysis (anti-FLAG and anti-HA), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig4-figsupp1-data2-v1.pdf
Figure 4—figure supplement 2
The SidE- and SidC-family proteins contribute toward retaining active Rab10 to the Legionella-containing vacuole (LCV).

HeLa-FcγRII cells transiently expressing RFP-Rab10QL were infected with the indicated L. pneumophila strains at an MOI of 10 for 1 hr. Cells were fixed and stained with anti-Legionella antiserum …

Figure 5 with 2 supplements
The transglutaminase activity of MavC can mediate a unique Ub conjugation to SdcB.

(a) 3xFLAG-SdcB, HA-Ub, and GFP-MavC were coexpressed in HEK293T-FcγRII cells. SdcB was isolated from cell lysates by immunoprecipitation using anti-FLAG magnetic beads and was probed with the …

Figure 5—source data 1

Original files for the western blot analysis in Figure 5a (anti-FLAG, anti-HA, and anti-GFP).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig5-data1-v1.zip
Figure 5—source data 2

PDF containing Figure 5a and original scans of the relevant western blot analysis (anti-FLAG, anti-HA, and anti-GFP), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig5-data2-v1.pdf
Figure 5—source data 3

Original files for the western blot analysis in Figure 5b (anti-FLAG, anti-FK2, and anti-GFP).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig5-data3-v1.zip
Figure 5—source data 4

PDF containing Figure 5b and original scans of the relevant western blot analysis (anti-FLAG, anti-FK2, and anti-GFP), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig5-data4-v1.pdf
Figure 5—source data 5

Original files for the silver stained gel and western blot analysis in Figure 5c (anti-FK2 and anti-His).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig5-data5-v1.zip
Figure 5—source data 6

PDF containing Figure 5c and original scans of the relevant silver stained gel and western blot analysis (anti-FK2 and anti-His), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig5-data6-v1.pdf
Figure 5—source data 7

Original files for the western blot analysis in Figure 5d (anti-FLAG, anti-HA, and anti-GFP).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig5-data7-v1.zip
Figure 5—source data 8

PDF containing Figure 5d and original scans of the relevant western blot analysis (anti-FLAG, anti-HA, and anti-GFP), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig5-data8-v1.pdf
Figure 5—source data 9

Original files for the western blot analysis in Figure 5e (anti-FLAG, anti-HA, and anti-GFP).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig5-data9-v1.zip
Figure 5—source data 10

PDF containing Figure 5e and original scans of the relevant western blot analysis (anti-FLAG, anti-HA, and anti-GFP), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig5-data10-v1.pdf
Figure 5—source data 11

Original files for the western blot analysis in Figure 5f (anti-FLAG, anti-HA, anti-P4D1, and anti-GFP).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig5-data11-v1.zip
Figure 5—source data 12

PDF containing Figure 5f and original scans of the relevant western blot analysis (anti-FLAG, anti-HA, anti-P4D1, and anti-GFP), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig5-data12-v1.pdf
Figure 5—figure supplement 1
SdcB has a catalytic activity of self-ubiquitination with preference of various E2 enzymes.

Ub, E1 enzyme, indicated E2 enzymes, and purified His-SdcB or His-SidC were mixed in the reaction buffer in the presence of ATP and incubated at 30°C for 120 min. The samples were analyzed by sodium …

Figure 5—figure supplement 1—source data 1

Original files for the silver staining and the western blot analysis in Figure 5—figure supplement 1 (silver staining and anti-FK2).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig5-figsupp1-data1-v1.zip
Figure 5—figure supplement 1—source data 2

PDF containing original scans of the silver stained gel and the western blot analysis in Figure 5—figure supplement 1 (anti-FK2) with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig5-figsupp1-data2-v1.pdf
Figure 5—figure supplement 2
The catalytic activity of MavC negatively impacts on auto-ubiquitination of SdcB.

(a) 3xFLAG-SdcB, HA-Ub and GFP-MavC were coexpressed in HEK293T-FcγRII cells. After 24 hr transfection, cell media was replaced with media containing 10 μM of MG132 or equivalent amount of …

Figure 5—figure supplement 2—source data 1

Original files for the western blot analysis in Figure 5—figure supplement 2a (anti-FLAG, anti-GFP and anti-GAPDH).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig5-figsupp2-data1-v1.zip
Figure 5—figure supplement 2—source data 2

PDF containing Figure 5—figure supplement 2a and original scans of the relevant western blot analysis (anti-FLAG, anti-GFP, and anti-GAPDH), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig5-figsupp2-data2-v1.pdf
Figure 5—figure supplement 2—source data 3

Original files for the western blot analysis in Figure 5—figure supplement 2b (anti-FK2).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig5-figsupp2-data3-v1.zip
Figure 5—figure supplement 2—source data 4

PDF containing Figure 5—figure supplement 2b and original scans of the relevant western blot analysis (anti-FK2), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig5-figsupp2-data4-v1.pdf
Figure 6 with 2 supplements
Identification of residues on Ub and SdcB between which MavC can crosslink.

(a) MavC catalyzes the formation of an isopeptide bond between the Gln41 of Ub and the Lys518 of SdcB. The indicated proteins were expressed in HEK293T-FcγRII cells and SdcB was isolated from cell …

Figure 6—source data 1

Original files for the CBB stained gel and western blot analysis in Figure 6a (anti-HA).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig6-data1-v1.zip
Figure 6—source data 2

PDF containing Figure 6a and original scans of the relevant CBB stained gel and western blot analysis (anti-HA), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig6-data2-v1.pdf
Figure 6—source data 3

Original files for the western blot analysis in Figure 6b (anti-FLAG, anti-HA, and anti-GFP).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig6-data3-v1.zip
Figure 6—source data 4

PDF containing Figure 6b and original scans of the relevant western blot analysis (anti-FLAG, anti-HA, and anti-GFP), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig6-data4-v1.pdf
Figure 6—source data 5

Original files for the western blot analysis in Figure 6c (anti-FLAG, anti-HA, and anti-GFP).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig6-data5-v1.zip
Figure 6—source data 6

PDF containing Figure 6c and original scans of the relevant western blot analysis (anti-FLAG, anti-HA, and anti-GFP), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig6-data6-v1.pdf
Figure 6—figure supplement 1
Mass spectrometry analysis identified additional residues forming a covalent linkage between Ub and SdcB.

Product ion spectrum was shown for Ub peptide – IQDKEGIPPDQQR crosslinked with SdcB peptide – GYVGVFFSGKENIK.

Figure 6—figure supplement 2
Mutations on Lys518 and Lys891 of SdcB did not affect ubiquitination of Rab10.

HEK293T-FcγRII cells transiently expressing 3xFLAG-Rab10QL and HA-Ub were infected with the L. pneumophila ΔsidCΔsdcAΔsdcB strain expressing Myc-tagged SdcB, its catalytic mutant (SdcB C57A) or SdcB …

Figure 6—figure supplement 2—source data 1

Original files for the western blot analysis in Figure 6—figure supplement 2 (anti-FLAG, anti-HA, and anti-Myc).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig6-figsupp2-data1-v1.zip
Figure 6—figure supplement 2—source data 2

PDF containing Figure 6—figure supplement 2 and original scans of the relevant western blot analysis (anti-FLAG, anti-HA, and anti-Myc), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig6-figsupp2-data2-v1.pdf
Figure 7 with 2 supplements
Catalytic activity of MavC negatively regulates the Rab10 localization to the Legionella-containing vacuole (LCV).

(a, b) HeLa-FcγRII cells transiently expressing RFP-Rab10 and HA-MavC or its catalytic mutant were infected with the Lp01 ΔsidCΔsdcAΔsdcB strain complemented with the plasmid expressing 3xFLAG-SdcB …

Figure 7—figure supplement 1
Bacterially delivered MavC mediates elimination of Rab10 from the Legionella-containing vacuole (LCV).

Representative images of cells infected with the indicated Lp01 strains at an MOI of 2 for 9 hr (Rab10-positive LCVs (%) were quantified in Figure 7c). Fixed cells were stained for L. pneumophila

Figure 7—figure supplement 2
Ectopic expression of SdcB does not proceed Rab10 polyubiquitination even in the presence of SdeA.

Indicated proteins were coexpressed in HEK293T-FcγRII cells. Rab10 was isolated from cell lysates by immunoprecipitation using anti-RFP magnetic beads and was probed with the indicated antibodies. …

Figure 7—figure supplement 2—source data 1

Original files for the western blot analysis in Figure 7—figure supplement 2 (anti-GFP, anti-RFP, and anti-HA).

https://cdn.elifesciences.org/articles/89002/elife-89002-fig7-figsupp2-data1-v1.zip
Figure 7—figure supplement 2—source data 2

PDF containing Figure 7—figure supplement 2 and original scans of the relevant western blot analysis (anti-GFP, anti-RFP, and anti-HA), with cropped areas.

https://cdn.elifesciences.org/articles/89002/elife-89002-fig7-figsupp2-data2-v1.pdf

Tables

Key resources table
Reagent type (species) or resourceDesignationSource or referenceIdentifiersAdditional information
Strain, strain background (Legionella pneumophila)Philadelphia-1 (Lp01)Berger and Isberg, 1993NC_002942.5
Strain, strain background (Legionella pneumophila)Lp01ΔicmV ΔdotAdotA)Zuckman et al., 1999N/A
Strain, strain background (Legionella pneumophila)Lp01 ΔsidCΔsdcAThis studyN/AConstructed in Nagai lab
Strain, strain background (Legionella pneumophila)Lp01 ΔsidCΔsdcAΔsdcBThis studyN/AConstructed in Nagai lab
Strain, strain background (Legionella pneumophila)Lp01 ΔsidEΔsdeAΔsdeBΔsdeCsidEs)This studyN/AConstructed in Nagai lab
Strain, strain background (Legionella pneumophila)Lp01 ΔdupAΔdupBThis studyN/AConstructed in Nagai lab
Strain, strain background (Legionella pneumophila)Lp01 ΔdupAΔsidJΔdupBΔsdjAThis studyN/AConstructed in Nagai lab
Strain, strain background (Legionella pneumophila)Lp01 Δlpg2149This studyN/AConstructed in Nagai lab
Strain, strain background (Legionella pneumophila)Lp01 ΔmavCΔmvcAThis studyN/AConstructed in Nagai lab
Strain, strain background (Escherichia coli)DH5αTOYOBOCat# DNA-903Competent cells
Strain, strain background (Escherichia coli)DH5αλpirZuckman et al., 1999N/ACompetent cells
Strain, strain background (Escherichia coli)BL21(DE3)NOVAGEN-MERKCat# 69450Competent cells
Cell line (Homo sapiens)HeLa‐FcγRIIArasaki et al., 2017Established from
ATCC CCL-2
Cell line (Homo sapiens)HEK293T‐FcγRIIArasaki and Roy, 2010Established from ATCC CRL-3216
Antibodyanti-FLAG (M2) (Mouse monoclonal)SigmaCat# F1804WB (1:1000)
Antibodyanti-HA (Mouse monoclonal)MBLCat# M132-3WB (1:1000)
Antibodyanti-HA (Rabbit monoclonal)MBLCat# 561WB (1:1000)
Antibodyanti-Ub (FK2) (Mouse monoclonal)EnzoCat# BML-PW8810WB (1:1000)
Antibodyanti-Ub (P4D1) (Mouse monoclonal)Santa CruzCat# sc-8017WB (1:200)
Antibodyanti-GFP (Rabbit polyclonal)MBLCat# 598WB (1:2000)
Antibodyanti-His (Mouse monoclonal)NovagenCat# 70796-3WB (1:1000)
Antibodyanti-Myc (Mouse monoclonal)RocheCat# 11 667 203 001WB (1:1000)
Antibodyanti-RFP (Rabbit polyclonal)MBLCat# PM005WB (1:1000)
AntibodyAnti-GAPDH (Mouse monoclonal)ProteintecCat# 60004-1-IgWB (1:5000)
Antibodyanti-Legionella pneumophila (Rabbit polyclonal)BioAcademiaCat# 64-100IF (1:5000)
Opsonization (1:3000)
AntibodyGoat anti-mouse IgG (H+L) secondary, HRPThermo FisherCat# 62-6520WB (1:10,000)
AntibodyGoat anti-rabbit IgG (H+L) secondary, HRPThermo FisherCat# 65-6120WB (1:10,000)
AntibodyAlexa Fluor 488 goat anti-mouseThermo FisherCat#A-11029IF (1:500)
AntibodyAlexa Fluor 488 goat anti-rabbitThermo FisherCat#A-11034IF (1:500)
AntibodyRhodamine RedX goat anti-rabbitThermo FisherCat# R6349IF (1:1000)
Peptide, recombinant proteinUbiquitin, human recombinantBoston BiochemCat# U-100H
Peptide, recombinant proteinUbiquitin K63R, human recombinantBoston BiochemCat# UM-K63R
Peptide, recombinant proteinUbiquitin mutant with K63 only, human recombinantBoston BiochemCat# UM-K630
Peptide, recombinant proteinUBE1, human recombinantBoston BiochemCat# E-305
Peptide, recombinant proteinUbc (E2) Enzyme KitBoston BiochemCat# K-980B
Chemical compound, drugN-(2-Acetamido)-2-aminoethanesulfonic acid (ACES)SigmaCat# 7365-82-4
Chemical compound, drugN-Ethylmaleimide (NEM)SigmaCat# E3876
Chemical compound, drugcOmplete protease inhibitor Cocktail (EDTA free)Roche (Merk)Cat# 11873580001
Chemical compound, drugSigmaFast Protease Inhibitor CocktailSigmaCat# S8830
Chemical compound, drugPhenylmethylsulfonyl fluoride (PMSF)NacaraiCat# 27327-94
Chemical compound, drugMG132CalbiochemCat# 474791
Commercial assay kitSilver Stain MS KitFUJIFILM WakoCat# 299-58901
Commercial assay kitQuickChange II site-directed mutagenesis kitAgilentCat# 200523
Commercial assay kitGibson assembly kitNew England BiolabsCat# E2611
Commercial assay kitEndoFree Plasmid MAXI prep kitsQIAGENCat# 12362
Other4,6-Diamidino-2-phenylindole (DAPI)DOJINDOCat# GW0941:10,000
OtherLipofectamine 2000InvitrogenCat# 11668-019Transfection reagent
OtherPolyethylenimine (PEI)PolysciencesCat# 24765-2Transfection reagent
OtherPoly-L-lysineSigmaCat# P47070.01%
OtherParaformaldehyde (PFA)SigmaCat# 4412444%
OtherProLongTM Diamond Antifade MountantThermo FisherCat# P36961Antifade moutant
OtherNi-nitrilotriacetic acid (NTA) agaroseQIAGENCat# 30210Affinity matrix
OtherFLAG M2 magnetic beadsSigmaCat# M8823Affinity beads
OtherMyc-Trap magnetic beadschromotekCat# ytmaAffinity beads
OtherRFP-Trap magnetic beadschromotekCat# rtmaAffinity beads
OtherMinimum essential medium α (MEMα)GibcoCat# 12571-063Medium
OtherDulbecco’s modified Eagle medium (DMEM)GibcoCat# 11885-084Medium
OtherFetal bovine serum (FBS)SigmaCat# 172012Heat inactivated, 10%
OtherGoat serumGibcoCat# 16210-0642%

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