CATH Classification

Domain Context

CATH Clusters

Superfamily 1.50.10.20
Functional Family Geranylgeranyl transferase type-2 subunit beta

Enzyme Information

2.5.1.60
Protein geranylgeranyltransferase type II.
based on mapping to UniProt Q08603
Geranylgeranyl diphosphate + protein-cysteine = S-geranylgeranyl- protein + diphosphate.
-!- This enzyme, along with EC 2.5.1.58 and EC 2.5.1.59, constitutes the protein prenyltransferase family of enzymes. -!- Attaches geranylgeranyl groups to two C-terminal cysteines in Ras- related GTPases of a single family, the Rab family (Ypt/Sec4 in lower eukaryotes) that terminate in XXCC, XCXC and CCXX motifs. -!- Reaction is entirely dependent on the Rab substrate being bound to Rab escort protein (REP). -!- Post-translational modification with the geranylgeranyl moiety is essential for Rab GTPases to be able to control the processes of membrane docking and fusion.

UniProtKB Entries (1)

Q08603
PGTB2_RAT
Rattus norvegicus
Geranylgeranyl transferase type-2 subunit beta

PDB Structure

PDB 3C72
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Development of selective RabGGTase inhibitors and crystal structure of a RabGGTase-inhibitor complex.
Guo, Z., Wu, Y.W., Tan, K.T., Bon, R.S., Guiu-Rozas, E., Delon, C., Nguyen, T.U., Wetzel, S., Arndt, S., Goody, R.S., Blankenfeldt, W., Alexandrov, K., Waldmann, H.
Angew.Chem.Int.Ed.Engl.
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