#PAGE_PARAMS# #ADS_HEAD_SCRIPTS# #MICRODATA#

Functional Interchangeability of Late Domains, Late Domain Cofactors and Ubiquitin in Viral Budding


The membrane scission event that separates nascent enveloped virions from host cell membranes often requires the ESCRT pathway, which can be engaged through the action of peptide motifs, termed late (L-) domains, in viral proteins. Viral PTAP and YPDL-like L-domains bind directly to the ESCRT-I and ALIX components of the ESCRT pathway, while PPxY motifs bind Nedd4-like, HECT-domain containing, ubiquitin ligases (e.g. WWP1). It has been unclear precisely how ubiquitin ligase recruitment ultimately leads to particle release. Here, using a lysine-free viral Gag protein derived from the prototypic foamy virus (PFV), where attachment of ubiquitin to Gag can be controlled, we show that several different HECT domains can replace the WWP1 HECT domain in chimeric ubiquitin ligases and drive budding. Moreover, artificial recruitment of isolated HECT domains to Gag is sufficient to stimulate budding. Conversely, the HECT domain becomes dispensable if the other domains of WWP1 are directly fused to an ESCRT-1 protein. In each case where budding is driven by a HECT domain, its catalytic activity is essential, but Gag ubiquitination is dispensable, suggesting that ubiquitin ligation to trans-acting proteins drives budding. Paradoxically, however, we also demonstrate that direct fusion of a ubiquitin moiety to the C-terminus of PFV Gag can also promote budding, suggesting that ubiquitination of Gag can substitute for ubiquitination of trans-acting proteins. Depletion of Tsg101 and ALIX inhibits budding that is dependent on ubiquitin that is fused to Gag, or ligated to trans-acting proteins through the action of a PPxY motif. These studies underscore the flexibility in the ways that the ESCRT pathway can be engaged, and suggest a model in which the identity of the protein to which ubiquitin is attached is not critical for subsequent recruitment of ubiquitin-binding components of the ESCRT pathway and viral budding to proceed.


Vyšlo v časopise: Functional Interchangeability of Late Domains, Late Domain Cofactors and Ubiquitin in Viral Budding. PLoS Pathog 6(10): e32767. doi:10.1371/journal.ppat.1001153
Kategorie: Research Article
prolekare.web.journal.doi_sk: https://doi.org/10.1371/journal.ppat.1001153

Souhrn

The membrane scission event that separates nascent enveloped virions from host cell membranes often requires the ESCRT pathway, which can be engaged through the action of peptide motifs, termed late (L-) domains, in viral proteins. Viral PTAP and YPDL-like L-domains bind directly to the ESCRT-I and ALIX components of the ESCRT pathway, while PPxY motifs bind Nedd4-like, HECT-domain containing, ubiquitin ligases (e.g. WWP1). It has been unclear precisely how ubiquitin ligase recruitment ultimately leads to particle release. Here, using a lysine-free viral Gag protein derived from the prototypic foamy virus (PFV), where attachment of ubiquitin to Gag can be controlled, we show that several different HECT domains can replace the WWP1 HECT domain in chimeric ubiquitin ligases and drive budding. Moreover, artificial recruitment of isolated HECT domains to Gag is sufficient to stimulate budding. Conversely, the HECT domain becomes dispensable if the other domains of WWP1 are directly fused to an ESCRT-1 protein. In each case where budding is driven by a HECT domain, its catalytic activity is essential, but Gag ubiquitination is dispensable, suggesting that ubiquitin ligation to trans-acting proteins drives budding. Paradoxically, however, we also demonstrate that direct fusion of a ubiquitin moiety to the C-terminus of PFV Gag can also promote budding, suggesting that ubiquitination of Gag can substitute for ubiquitination of trans-acting proteins. Depletion of Tsg101 and ALIX inhibits budding that is dependent on ubiquitin that is fused to Gag, or ligated to trans-acting proteins through the action of a PPxY motif. These studies underscore the flexibility in the ways that the ESCRT pathway can be engaged, and suggest a model in which the identity of the protein to which ubiquitin is attached is not critical for subsequent recruitment of ubiquitin-binding components of the ESCRT pathway and viral budding to proceed.


Zdroje

1. HurleyJH

EmrSD

2006 The ESCRT complexes: structure and mechanism of a membrane-trafficking network. Annu Rev Biophys Biomol Struct 35 277 298

2. RaiborgC

StenmarkH

2009 The ESCRT machinery in endosomal sorting of ubiquitylated membrane proteins. Nature 458 445 452

3. CarltonJG

Martin-SerranoJ

2007 Parallels between cytokinesis and retroviral budding: a role for the ESCRT machinery. Science 316 1908 1912

4. MoritaE

SandrinV

ChungHY

MorhamSG

GygiSP

2007 Human ESCRT and ALIX proteins interact with proteins of the midbody and function in cytokinesis. EMBO J 26 4215 4227

5. BieniaszPD

2006 Late budding domains and host proteins in enveloped virus release. Virology 344 55 63

6. MoritaE

SundquistWI

2004 Retrovirus budding. Annu Rev Cell Dev Biol 20 395 425

7. GarrusJE

von SchwedlerUK

PornillosOW

MorhamSG

ZavitzKH

2001 Tsg101 and the vacuolar protein sorting pathway are essential for HIV-1 budding. Cell 107 55 65

8. Martin-SerranoJ

ZangT

BieniaszPD

2001 HIV-1 and Ebola virus encode small peptide motifs that recruit Tsg101 to sites of particle assembly to facilitate egress. Nat Med 7 1313 1319

9. VerPlankL

BouamrF

LaGrassaTJ

AgrestaB

KikonyogoA

2001 Tsg101, a homologue of ubiquitin-conjugating (E2) enzymes, binds the L domain in HIV type 1 Pr55(Gag). Proc Natl Acad Sci U S A 98 7724 7729

10. DemirovDG

OnoA

OrensteinJM

FreedEO

2002 Overexpression of the N-terminal domain of TSG101 inhibits HIV-1 budding by blocking late domain function. Proc Natl Acad Sci U S A 99 955 960

11. StrackB

CalistriA

CraigS

PopovaE

GottlingerHG

2003 AIP1/ALIX is a binding partner for HIV-1 p6 and EIAV p9 functioning in virus budding. Cell 114 689 699

12. Martin-SerranoJ

YarovoyA

Perez-CaballeroD

BieniaszPD

2003 Divergent retroviral late-budding domains recruit vacuolar protein sorting factors by using alternative adaptor proteins. Proc Natl Acad Sci U S A 100 12414 12419

13. von SchwedlerUK

StuchellM

MullerB

WardDM

ChungHY

2003 The protein network of HIV budding. Cell 114 701 713

14. StrackB

CalistriA

AccolaMA

PaluG

GottlingerHG

2000 A role for ubiquitin ligase recruitment in retrovirus release. Proc Natl Acad Sci U S A 97 13063 13068

15. HartyRN

BrownME

WangG

HuibregtseJ

HayesFP

2000 A PPxY motif within the VP40 protein of Ebola virus interacts physically and functionally with a ubiquitin ligase: implications for filovirus budding. Proc Natl Acad Sci U S A 97 13871 13876

16. KikonyogoA

BouamrF

VanaML

XiangY

AiyarA

2001 Proteins related to the Nedd4 family of ubiquitin protein ligases interact with the L domain of Rous sarcoma virus and are required for gag budding from cells. Proc Natl Acad Sci U S A 98 11199 11204

17. Martin-SerranoJ

EastmanSW

ChungW

BieniaszPD

2005 HECT ubiquitin ligases link viral and cellular PPxY motifs to the vacuolar protein-sorting pathway. J Cell Biol 168 89 101

18. YasudaJ

HunterE

NakaoM

ShidaH

2002 Functional involvement of a novel Nedd4-like ubiquitin ligase on retrovirus budding. EMBO Rep 3 636 640

19. BabstM

KatzmannDJ

Estepa-SabalEJ

MeerlooT

EmrSD

2002 Escrt-III: an endosome-associated heterooligomeric protein complex required for mvb sorting. Dev Cell 3 271 282

20. BabstM

KatzmannDJ

SnyderWB

WendlandB

EmrSD

2002 Endosome-associated complex, ESCRT-II, recruits transport machinery for protein sorting at the multivesicular body. Dev Cell 3 283 289

21. KatzmannDJ

BabstM

EmrSD

2001 Ubiquitin-dependent sorting into the multivesicular body pathway requires the function of a conserved endosomal protein sorting complex, ESCRT-I. Cell 106 145 155

22. WollertT

HurleyJH

Molecular mechanism of multivesicular body biogenesis by ESCRT complexes. Nature

23. WollertT

WunderC

Lippincott-SchwartzJ

HurleyJH

2009 Membrane scission by the ESCRT-III complex. Nature 458 172 177

24. LataS

SchoehnG

JainA

PiresR

PiehlerJ

2008 Helical structures of ESCRT-III are disassembled by VPS4. Science 321 1354 1357

25. SaksenaS

WahlmanJ

TeisD

JohnsonAE

EmrSD

2009 Functional reconstitution of ESCRT-III assembly and disassembly. Cell 136 97 109

26. ZamborliniA

UsamiY

RadoshitzkySR

PopovaE

PaluG

2006 Release of autoinhibition converts ESCRT-III components into potent inhibitors of HIV-1 budding. Proc Natl Acad Sci U S A 103 19140 19145

27. FisherRD

ChungHY

ZhaiQ

RobinsonH

SundquistWI

2007 Structural and biochemical studies of ALIX/AIP1 and its role in retrovirus budding. Cell 128 841 852

28. McCulloughJ

FisherRD

WhitbyFG

SundquistWI

HillCP

2008 ALIX-CHMP4 interactions in the human ESCRT pathway. Proc Natl Acad Sci U S A 105 7687 7691

29. ZhadinaM

McClureMO

JohnsonMC

BieniaszPD

2007 Ubiquitin-dependent virus particle budding without viral protein ubiquitination. Proc Natl Acad Sci U S A 104 20031 20036

30. UsamiY

PopovS

PopovaE

GottlingerHG

2008 Efficient and specific rescue of human immunodeficiency virus type 1 budding defects by a Nedd4-like ubiquitin ligase. J Virol 82 4898 4907

31. ChungHY

MoritaE

von SchwedlerU

MullerB

KrausslichHG

2008 NEDD4L overexpression rescues the release and infectivity of human immunodeficiency virus type 1 constructs lacking PTAP and YPXL late domains. J Virol 82 4884 4897

32. MedinaG

ZhangY

TangY

GottweinE

VanaML

2005 The functionally exchangeable L domains in RSV and HIV-1 Gag direct particle release through pathways linked by Tsg101. Traffic 6 880 894

33. BacheKG

RaiborgC

MehlumA

StenmarkH

2003 STAM and Hrs are subunits of a multivalent ubiquitin-binding complex on early endosomes. J Biol Chem 278 12513 12521

34. BishopN

HormanA

WoodmanP

2002 Mammalian class E vps proteins recognize ubiquitin and act in the removal of endosomal protein-ubiquitin conjugates. J Cell Biol 157 91 101

35. PoloS

SigismundS

FarettaM

GuidiM

CapuaMR

2002 A single motif responsible for ubiquitin recognition and monoubiquitination in endocytic proteins. Nature 416 451 455

36. ShihSC

KatzmannDJ

SchnellJD

SutantoM

EmrSD

2002 Epsins and Vps27p/Hrs contain ubiquitin-binding domains that function in receptor endocytosis. Nat Cell Biol 4 389 393

37. SlagsvoldT

AaslandR

HiranoS

BacheKG

RaiborgC

2005 Eap45 in mammalian ESCRT-II binds ubiquitin via a phosphoinositide-interacting GLUE domain. J Biol Chem 280 19600 19606

38. HickeL

2001 A new ticket for entry into budding vesicles-ubiquitin. Cell 106 527 530

39. UrbanowskiJL

PiperRC

2001 Ubiquitin sorts proteins into the intralumenal degradative compartment of the late-endosome/vacuole. Traffic 2 622 630

40. PuttermanD

PepinskyRB

VogtVM

1990 Ubiquitin in avian leukosis virus particles. Virology 176 633 637

41. OttDE

CorenLV

CopelandTD

KaneBP

JohnsonDG

1998 Ubiquitin is covalently attached to the p6Gag proteins of human immunodeficiency virus type 1 and simian immunodeficiency virus and to the p12Gag protein of Moloney murine leukemia virus. J Virol 72 2962 2968

42. OttDE

CorenLV

ChertovaEN

GagliardiTD

SchubertU

2000 Ubiquitination of HIV-1 and MuLV Gag. Virology 278 111 121

43. HeideckerG

LloydPA

FoxK

NagashimaK

DerseD

2004 Late assembly motifs of human T-cell leukemia virus type 1 and their relative roles in particle release. J Virol 78 6636 6648

44. PatnaikA

ChauV

WillsJW

2000 Ubiquitin is part of the retrovirus budding machinery. Proc Natl Acad Sci U S A 97 13069 13074

45. SchubertU

OttDE

ChertovaEN

WelkerR

TessmerU

2000 Proteasome inhibition interferes with gag polyprotein processing, release, and maturation of HIV-1 and HIV-2. Proc Natl Acad Sci U S A 97 13057 13062

46. GottweinE

JagerS

HabermannA

KrausslichHG

2006 Cumulative mutations of ubiquitin acceptor sites in human immunodeficiency virus type 1 gag cause a late budding defect. J Virol 80 6267 6275

47. SpidelJL

CravenRC

WilsonCB

PatnaikA

WangH

2004 Lysines close to the Rous sarcoma virus late domain critical for budding. J Virol 78 10606 10616

48. JoshiA

MunshiU

AblanSD

NagashimaK

FreedEO

2008 Functional replacement of a retroviral late domain by ubiquitin fusion. Traffic 9 1972 1983

49. BabstM

WendlandB

EstepaEJ

EmrSD

1998 The Vps4p AAA ATPase regulates membrane association of a Vps protein complex required for normal endosome function. EMBO J 17 2982 2993

50. BishopN

WoodmanP

2000 ATPase-defective mammalian VPS4 localizes to aberrant endosomes and impairs cholesterol trafficking. Mol Biol Cell 11 227 239

51. MarcheseA

RaiborgC

SantiniF

KeenJH

StenmarkH

2003 The E3 ubiquitin ligase AIP4 mediates ubiquitination and sorting of the G protein-coupled receptor CXCR4. Dev Cell 5 709 722

52. RotinD

KumarS

2009 Physiological functions of the HECT family of ubiquitin ligases. Nat Rev Mol Cell Biol 10 398 409

53. EastmanSW

Martin-SerranoJ

ChungW

ZangT

BieniaszPD

2005 Identification of human VPS37C, a component of endosomal sorting complex required for transport-I important for viral budding. J Biol Chem 280 628 636

54. Martin-SerranoJ

ZangT

BieniaszPD

2003 Role of ESCRT-I in retroviral budding. J Virol 77 4794 4804

55. StuchellMD

GarrusJE

MullerB

StrayKM

GhaffarianS

2004 The human endosomal sorting complex required for transport (ESCRT-I) and its role in HIV-1 budding. J Biol Chem 279 36059 36071

56. ParentLJ

BennettRP

CravenRC

NelleTD

KrishnaNK

1995 Positionally independent and exchangeable late budding functions of the Rous sarcoma virus and human immunodeficiency virus Gag proteins. J Virol 69 5455 5460

57. ShieldsSB

OestreichAJ

WinistorferS

NguyenD

PayneJA

2009 ESCRT ubiquitin-binding domains function cooperatively during MVB cargo sorting. J Cell Biol 185 213 224

58. McNattMW

McKittrickI

WestM

OdorizziG

2007 Direct binding to Rsp5 mediates ubiquitin-independent sorting of Sna3 via the multivesicular body pathway. Mol Biol Cell 18 697 706

59. PornillosO

AlamSL

RichRL

MyszkaDG

DavisDR

2002 Structure and functional interactions of the Tsg101 UEV domain. EMBO J 21 2397 2406

60. SundquistWI

SchubertHL

KellyBN

HillGC

HoltonJM

2004 Ubiquitin recognition by the human TSG101 protein. Mol Cell 13 783 789

61. HiranoS

KawasakiM

UraH

KatoR

RaiborgC

2006 Double-sided ubiquitin binding of Hrs-UIM in endosomal protein sorting. Nat Struct Mol Biol 13 272 277

62. LloydTE

AtkinsonR

WuMN

ZhouY

PennettaG

2002 Hrs regulates endosome membrane invagination and tyrosine kinase receptor signaling in Drosophila. Cell 108 261 269

63. RaiborgC

BacheKG

GilloolyDJ

MadshusIH

StangE

2002 Hrs sorts ubiquitinated proteins into clathrin-coated microdomains of early endosomes. Nat Cell Biol 4 394 398

64. MizunoE

KawahataK

KatoM

KitamuraN

KomadaM

2003 STAM proteins bind ubiquitinated proteins on the early endosome via the VHS domain and ubiquitin-interacting motif. Mol Biol Cell 14 3675 3689

65. HongYH

AhnHC

LimJ

KimHM

JiHY

2009 Identification of a novel ubiquitin binding site of STAM1 VHS domain by NMR spectroscopy. FEBS Lett 583 287 292

66. RenX

HurleyJH

2010 VHS domains of ESCRT-0 cooperate in high-avidity binding to polyubiquitinated cargo. EMBO J 29 1045 1054

67. HiranoS

SuzukiN

SlagsvoldT

KawasakiM

TrambaioloD

2006 Structural basis of ubiquitin recognition by mammalian Eap45 GLUE domain. Nat Struct Mol Biol 13 1031 1032

68. AlamSL

LangelierC

WhitbyFG

KoiralaS

RobinsonH

2006 Structural basis for ubiquitin recognition by the human ESCRT-II EAP45 GLUE domain. Nat Struct Mol Biol 13 1029 1030

69. StamenovaSD

FrenchME

HeY

FrancisSA

KramerZB

2007 Ubiquitin binds to and regulates a subset of SH3 domains. Mol Cell 25 273 284

Štítky
Hygiena a epidemiológia Infekčné lekárstvo Laboratórium

Článok vyšiel v časopise

PLOS Pathogens


2010 Číslo 10
Najčítanejšie tento týždeň
Najčítanejšie v tomto čísle
Kurzy

Zvýšte si kvalifikáciu online z pohodlia domova

Získaná hemofilie - Povědomí o nemoci a její diagnostika
nový kurz

Eozinofilní granulomatóza s polyangiitidou
Autori: doc. MUDr. Martina Doubková, Ph.D.

Všetky kurzy
Prihlásenie
Zabudnuté heslo

Zadajte e-mailovú adresu, s ktorou ste vytvárali účet. Budú Vám na ňu zasielané informácie k nastaveniu nového hesla.

Prihlásenie

Nemáte účet?  Registrujte sa

#ADS_BOTTOM_SCRIPTS#