GTP-binding protein

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'''GTP-binding proteins''' or '''G proteins''' are transmitting signals outside the cell which cause changes within the cell. They act as molecular switches which are on when binding GTP and off when binding GDP. GTP-binding proteins belong to two families: heterotrimeric G proteins and small GTPases. The images at the left and at the right correspond to one representative G protein, ''i.e.'' the crystal structure of human GTP-binding protein complex with nucleotide ([[2nzj]]). See details on GTP-binding protein LpeD in [[LepA]].
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'''GTP-binding proteins''' or '''G proteins''' are transmitting signals outside the cell which cause changes within the cell. They act as molecular switches which are on when binding GTP and off when binding GDP. GTP-binding proteins belong to two families: heterotrimeric G proteins and small GTPases. See details on GTP-binding protein LpeD in [[LepA]].
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== 3D Structures of GTP-binding protein ==
== 3D Structures of GTP-binding protein ==

Revision as of 09:49, 27 August 2014

Image:2nzj.png
Crystal Structure of GTP-binding protein Rem1 tetramer complex with nucleotide 2nzj

Template:STRUCTURE 3cbq












GTP-binding proteins or G proteins are transmitting signals outside the cell which cause changes within the cell. They act as molecular switches which are on when binding GTP and off when binding GDP. GTP-binding proteins belong to two families: heterotrimeric G proteins and small GTPases. See details on GTP-binding protein LpeD in LepA.


 

Drag the structure with the mouse to rotate
An activated G protein-coupled receptor (human β-2 adrenergic receptor in blue ) in a complex with a heterotrimeric G protein (3 subunits:reddish to orange-brown) and hormone (gold) (3sn6), resolution 3.2Å. The boundaries of the membrane in which the GPCR sits are represented in light green.



Contents

3D Structures of GTP-binding protein

Updated on 27-August-2014

GTP-binding protein

3r7w, 4arz – yGtr1 + Gtr2 – yeast
2eki – hGBP TGS domain – NMR - human
3kxk, 3kxl – SsHflx (mutant) - Sulfolobus solfataricus
2qtf – SsHflx
1ega – EcERA – Escherichia coli
2dyk – TtEngA N terminal – Thermus thermophilus - Cryo EM
3cb4 - EcLepA
2ywe – AaLepA
1sul – BsYsxC - Bacillus subtilis
2dwq – TtYchF
1udx – TtObg
1wxq – GBP – Pyrococcus horikoshii
1yr6 - PaGBP – Pyrococcus abyssi
1ni3 – YchF – Schizosaccharomyces pombe

GTP-binding protein complex with nucleotide

2nzj – hRem1 + GDP
3cbq – hRem2 + GDP
3q85 – hRem2 G domain + GTP analog
2cjw, 2ht6, 2g3y – hGem G domain + GDP
4aii - rRem2 G domain + GDP - rat
2ohf – hOla1 + AMP-PCP
1xtq – hRheB + GDP
1xts - hRheB + GTP
1xtr - hRheB + GPPNHP
3sea - hRheB + GDP + GNP
1e0a – hGBP (mutant) + GIP
2b8w, 2d4h – hGBP N terminal + GMP
2b92 - hGBP N terminal + GDP
2bc9 - hGBP N terminal + GPPNHP
1yr7, 1yr8 – PaGBP + GTP
1yr9, 1yra, 1yrb, 2oxr – PaGBP + GDP
3kxi, 2qth – SsHflx + GDP
3ieu – EcERA + GDP
3iev – AaERA + RNA + Mg-GNP – Aquifex aeolicus
1x1l – TtERA + RNA – Cryo EM
2ywf – AaLepA + GMP-PNP
2ywg - AaLepA + GTP
2ywh - AaLepA + GDP
1yzn – yPt1 + GPPNHP
1ky2 – yPt7 + GPPNHP
1ky3 – yPt7 + GDP
3rwm, 3rwo – yPt32 + GPPNHP
1ek0 – yPt51 + GPPNHP
2hjg, 4dcs, 4dct, 4dcu, 4dcv – BsEngA + GDP
1svi – BsYsxC + GDP
1svw – BsYsxC + GMPPNP
1lnz – BsObg + GTP
2dby – TtYchF + GDP
1wf3 – Tt1341 + GNP
2gao - hSar1A + GDP
2fa9 – ChSar1B (mutant) + GDP – Chinese hamster
2fmx - ChSar1B + GDP

GTP-binding protein complex with protein

1x18 – TtERA + RNA + RPS2 + RPS7 + RPS11 + RPS18 – Cryo EM
3deg – EcLepA + A-tRNA + P-tRNA + RPS12 + RPL11 – Cryo EM
3cue – yPt1 + transport protein subunits
2bcg, 1ukv - yPt1 + secretory pathway GDP-dissociation inhibitor
3cpj – yPt31 + Rab GDP-dissociation inhibitor
1m2o – ySar1 + protein transport protein sec23
3syn – BsFlhf + ATP-binding protein

G protein bound to a G protein-coupled receptor

3sn6 - human β-2 adrenergic receptor + cameloid antibody fragment bound by guanine nucleotide-binding protein G. This is the first structure of an activated G protein-coupled receptor in a complex with its G protein.

Ras-related GTP-binding protein

3llu – hC nucleotide-binding domain

Ras-related GTP-binding protein complex with nucleotide

2l0x – rRheb + GDP
2gjs – hRad1 + GDP
3q72, 3q7p, 3q7q – hRad G-domain + GTP analog
2dpx – hRad GTPase domain
2gf0 – hDiRas1 + GDP
2erx – hDiRas2 + Pi + GDP
1x3s – hRab-18 + GPPNHP
1yu9 - hRab-4A + GPPNHP
2atx – hTc10 + GPPNHP
1g16 – ySec4 + GDP
1g17 - ySec4 + GIP

Ras-related GTP-binding protein complex with protein

3kuc – hRap-1A + proto oncogene Ser/Thr protein kinase
3cf6 - hRap-1A + Rap guanine nucleotide exchange factor 4
3brw - hRap-1B + Rap GTPase-activating protein
1z0k – hRab-4 + rabenosyn-5
3tw8 – hRab-1C + DENND

Interferon-induced GTP-binding protein

3ljb – hMx1 stalk region
3szr – hMx1 residues 33-662
3zys – hMx1 + dynamin-1

Rho-related GTP-binding protein

2j1l – hRhoD

Rho-related GTP-binding protein complex with nucleotide

2cls – hRho6 + GTP
2fv8 - hRhoB + GDP
2gcn – hRhoC + GDP
2gco – hRhoC + GPPNHP
1z2c - hRhoC (mutant) + GMPPNP
2gcp – hRhoC + GSP
1m7b - hRhoE + GTP
1gwn - RhoE + GTP - mouse
1a4r - hCdc42 (mutant) + GDP
1an0 - hCdc42 + GDP
2qrz - hCdc42 + GCP

Rho-related GTP-binding protein complex with protein

2v55 – hRhoE + Rho-associated protein kinase
3q3j – hRho6 + plexin-A2 nucleotide-binding domain
2rex – hRho6 + plexin-B1
1cc0 – hRhoA + GDP-dissociation inhibitor + GDP
3a58 – yRho1 (mutant) + exocyst complex component Sec3
1gzs – Cdc42 + guanine nucleotide exchange factor – Salmonella typhimurium
2kb0 - hCdc42 (mutant)
1kz7 - hCdc42 + guanine nucleotide exchange factor
1kzg - hCdc42 (mutant) + guanine nucleotide exchange factor (mutant)
2dfk – hCdc42 + collybistin II
2wm9, 2wmn, 2wmo - hCdc42 + DOCK9
3eg5 - hCdc42 + protein diaphanous homolog 1 + GMPPNP
3gcg - hCdc42 + MAP
3n3v - hCdc42 + AMP-protein transferase
1nf3 - hCdc42 + Par6
2ase - hCdc42 (mutant) - NMR
1ki1 – hCdc42 + intersectin long form
1ees – hCdc42 + MapK3 peptide - NMR
1doa - hCdc42 + GDP-dissociation inhibitor
2ngr – hCdc42 + GTPase-activating protein C terminal + GDP
1am4 – hCdc42 + GTPase-activating protein rhoGAP + GNP
1grn – hCdc42 + GTPase-activating protein rhoGAP + GDP
1cf4 – hCdc42 (mutant) + ACK GTPase-binding domain + GNP - NMR
1cee – hCdc42 + WASP GTPase-binding domain + GCP - NMR
2odb – hCdc42 + PAK6 CRIB domain + GCP
3qbv – hCdc42 (mutant) + intersectin + GDP
4did – hCdc42 + inositol phosphate phosphatase + GDP
1cf4 – hCdc42 (mutant) + dedicator of cytokinesis protein 8
4itr – hCdc42 + AMP-protein transferase + GDP + AMP

Rac-like GTP-binding protein

2wbl – AtArac2 + Rho of plant guanine nucleotide exchange factor 8 – Arabidopsis thaliana
3bwd – AtArac6
2nty – AtArac5 + prone8
2j0v – AtArac7 (mutant)

Rab-related GTP-binding protein

2ys8 – hRabJ DNAJ domain – NMR

Flagella-associated GTP-binding protein

2px0 – BsFlhF + GMP-PNP
2px3 – BsFlhF + GTP

GTP-binding protein Ran

Ran binary complex

3gj0 – hRan + GDP
1i2m – hRan + regulator of chromosome condensation 1
1byu – Ran + GDP - dog
1qg2, 1qg4, 3ran – dRan (mutant) + GDP
2bku – dRan + importin

Ran ternary complex

1rrp – hRan + Nup358 + GTP analog
1qbk – hRan + karyopherin β2 + GTP analog
1ibr – hRan + importin β1 subunit + GTP analog
3ea5 – hRan (mutant) + importin β1 subunit + GDP
4c0q - hRan (mutant) + importin 12 + GTP
3nc1 – hRan (mutant) + exportin 1 + GTP
3ch5, 3gj3, 3gj4, 3gj5, 3gj6, 3gj7, 3gj8 – hRan + Nup153 + GDP
3w3z – dRan + importin β1 subunit + GTP

Ran quaternary complex

3gjx – hRan + snurportin 1 + exportin 1 + GTP
3nby, 3nbz, 3nc0 – hRan (mutant) + snurportin 1 + exportin 1 + GTP
1k5d – hRan + Ran-specific GTPase-activating protein + Ran GTPase activating protein 1 + GTP analog
1k5g – hRan + Ran-specific GTPase-activating protein + Ran GTPase activating protein 1 + GDP
4gpt, 4gmx, 4hat, 4hb2, 4hb3 – hRan + Ran-specific GTPase-activating protein + exportin 1 + GNP
4hat, 4hau, 4hav, 4haw, 4hax, 4hay, 4haz, 4hb0, 4hb4 – hRan + Ran-specific GTPase-activating protein + exportin 1 + GNP + antibiotic
3zjy – hRan (mutant) + importin 13 + EIF-1A + GTP
3a6p – dRan + pre-microRNA + exportin 5 + peptide
3icq – yRan + RNA + exportin T
3m1i – yRan + Ran-specific GTPase-activating protein + exportin 1 + GTP

Small GTP-binding protein

2rhd – GBP – Cryptosporidium parvum
1yzq - hRab-6 + GNP


3qq5 – GBP – Thermotoga neapolitana

See Also

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