1XTR: Small GTPase human Rheb

Structure of small GTPase human Rheb in complex with GppNHp. Determined by X-ray diffraction at 2.65 Å resolution. Released 8 Mar 2005.

Method: X-ray diffraction
Resolution: 2.65 Å
Organism: Homo sapiens
Chains: 1
Atoms: 1,445
Mol. weight: 20.79 kDa
Ligands: GNP, MG
Released: 8 Mar 2005

Explore 1XTR in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

1XTR contains 7 α-helices and 6 β-strands across 1 chain. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 7 helices, 6 β-strands

Element	Residues	Length	Sheet
β-strand	4-12	9	1
α-helix	19-27	9
β-strand	40-49	10	1
β-strand	52-61	10	1
α-helix	62-63	2
α-helix	72-75	4
β-strand	80-86	7	1
α-helix	90-107	18
β-strand	114-119	6	1
α-helix	124-126	3
α-helix	131-140	10
β-strand	144-148	5	1
α-helix	153-170	18

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
GTP-binding protein Rheb	A	protein	177	Homo sapiens	Q15382 (AlphaFold model)

Sequence of entity 1 (A), FASTA

>1XTR_1 GTP-binding protein Rheb (chains A)
MPQSKSRKIAILGYRSVGKSSLTIQFVEGQFVDSYDPTIENTFTKLITVNGQEYHLQLVD
TAGQDEYSIFPQTYSIDINGYILVYSVTSIKSFEVIKVIHGKLLDMVGKVQIPIMLVGNK
KDLHMERVISYEEGKALAESWNAAFLESSAKENQTAVDVFRRIILEAEKLEHHHHHH

Ligands and cofactors

ID	Name	Formula	Copies
GNP	Phosphoaminophosphonic acid-guanylate ester	C10 H17 N6 O13 P3	1
MG	Magnesium ion	Mg	1

Water and common crystallization additives (GOL) are not listed.

Primary citation

Structural Basis for the Unique Biological Function of Small GTPase RHEB. Yu, Y., Li, S., Xu, X. et al. J Biol Chem (2005) 280:17093-17100. DOI 10.1074/jbc.M501253200 · PubMed

Other PDB entries of the same protein (UniProt Q15382 (AlphaFold model), which also has an AlphaFold model), best resolution first:

6BSX 1.65 Å, Crystal structure of rheb in complex with compound 1 at 1.65A resolution
3T5G 1.7 Å, Structure of fully modified farnesylated Rheb in complex with PDE6D
1XTQ 2.0 Å, Structure of small GTPase human Rheb in complex with GDP
3SEA 2.0 Å, Structure of Rheb-Y35A mutant in GDP- and GMPPNP-bound forms
7BTD 2.0 Å, Crystal structure of Rheb Y35N mutant bound to GppNHp
5YXH 2.04 Å, Structure of Rheb-GDP
7BTC 2.1 Å, Crystal structure of Rheb Y35N mutant bound to GDP
6BT0 2.6 Å, Crystal structure of rheb in complex with compound NR1
7BTA 2.6 Å, Crystal structure of Rheb D60K mutant bound to GDP
1XTS 2.8 Å, Structure of small GTPase human Rheb in complex with GTP
9ED7 3.16 Å, Active state of mTOR on membrane
9ED4 3.23 Å, A composite map of mTORC1-Rag-Ragultor-4EBP1 on membrane

Browse structure collections

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