Function and Biology

Structure and Catalytic Mechanism of a SET Domain Protein Methyltransferase

Source organism: Pisum sativum

EC 2.1.1.259: [Fructose-bisphosphate aldolase]-lysine N-methyltransferase

Reaction catalysed:
3 S-adenosyl-L-methionine + [fructose-bisphosphate aldolase]-L-lysine = 3 S-adenosyl-L-homocysteine + [fructose-bisphosphate aldolase]-N(6),N(6),N(6)-trimethyl-L-lysine
Systematic name:
S-adenosyl-L-methionine:[fructose-bisphosphate aldolase]-lysine N(6)-methyltransferase
Alternative Name(s):
  • Ribulose-1,5-bisphosphate carboxylase/oxygenase large subunit epsilonN-methyltransferase
  • Ribulose-bisphosphate-carboxylase/oxygenase N-methyltransferase
  • RuBisCO methyltransferase
  • S-adenosyl-L-methionine:[3-phospho-D-glycerate-carboxy-lyase (dimerizing)]-lysine 6-N-methyltransferase

EC 2.1.1.127: [Ribulose-bisphosphate carboxylase]-lysine N-methyltransferase

Reaction catalysed:
3 S-adenosyl-L-methionine + [ribulose-bisphosphate carboxylase]-L-lysine = 3 S-adenosyl-L-homocysteine + [ribulose-bisphosphate carboxylase]-N(6),N(6),N(6)-trimethyl-L-lysine
Systematic name:
S-adenosyl-L-methionine:[3-phospho-D-glycerate-carboxy-lyase (dimerizing)]-lysine N(6)-methyltransferase
Alternative Name(s):
  • Ribulose-1,5-bisphosphate carboxylase/oxygenase large subunit (epsilon)N-methyltransferase
  • Ribulose-bisphosphate-carboxylase/oxygenase N-methyltransferase
  • RuBisCO LSMT
  • RuBisCO methyltransferase
  • Rubisco methyltransferase
  • S-adenosyl-L-methionine:[3-phospho-D-glycerate-carboxy-lyase (dimerizing)]-lysine 6-N-methyltransferase

Sequence family

Pfam Protein family (Pfam)
PF09273
Domain description: Rubisco LSMT substrate-binding
Occurring in:
  1. Ribulose-1,5 bisphosphate carboxylase/oxygenase large subunit N-methyltransferase, chloroplastic
The deposited structure of PDB entry 1mlv contains 3 copies of Pfam domain PF09273 (Rubisco LSMT substrate-binding) in Ribulose-1,5 bisphosphate carboxylase/oxygenase large subunit N-methyltransferase, chloroplastic. Showing 1 copy in chain B.

InterPro InterPro annotations
IPR036464
Domain description: Rubisco LSMT, substrate-binding domain superfamily
Occurring in:
  1. Ribulose-1,5 bisphosphate carboxylase/oxygenase large subunit N-methyltransferase, chloroplastic
IPR015353
Domain description: Rubisco LSMT, substrate-binding domain
Occurring in:
  1. Ribulose-1,5 bisphosphate carboxylase/oxygenase large subunit N-methyltransferase, chloroplastic
IPR044431
IPR046341
IPR011192
Domain description: Rubisco LSMT methyltransferase, plant
Occurring in:
  1. Ribulose-1,5 bisphosphate carboxylase/oxygenase large subunit N-methyltransferase, chloroplastic

Structure domains

CATH CATH domains
3.90.1420.10
Class: Alpha Beta
Architecture: Alpha-Beta Complex
Topology: set domain protein methyltransferase, domain 2
Homology: Rubisco LSMT, substrate-binding domain
Occurring in:
  1. Ribulose-1,5 bisphosphate carboxylase/oxygenase large subunit N-methyltransferase, chloroplastic
The deposited structure of PDB entry 1mlv contains 3 copies of CATH domain 3.90.1420.10 (set domain protein methyltransferase, domain 2) in Ribulose-1,5 bisphosphate carboxylase/oxygenase large subunit N-methyltransferase, chloroplastic. Showing 1 copy in chain B.
3.90.1410.10
Class: Alpha Beta
Architecture: Alpha-Beta Complex
Topology: set domain protein methyltransferase, domain 1
Homology: set domain protein methyltransferase, domain 1
Occurring in:
  1. Ribulose-1,5 bisphosphate carboxylase/oxygenase large subunit N-methyltransferase, chloroplastic
The deposited structure of PDB entry 1mlv contains 3 copies of CATH domain 3.90.1410.10 (set domain protein methyltransferase, domain 1) in Ribulose-1,5 bisphosphate carboxylase/oxygenase large subunit N-methyltransferase, chloroplastic. Showing 1 copy in chain B.
SCOP SCOP annotations
81823
Class: All alpha proteins
Fold: RuBisCo LSMT C-terminal, substrate-binding domain
Superfamily: RuBisCo LSMT C-terminal, substrate-binding domain
Occurring in:
  1. Ribulose-1,5 bisphosphate carboxylase/oxygenase large subunit N-methyltransferase, chloroplastic
The deposited structure of PDB entry 1mlv contains 3 copies of SCOP domain 81823 (RuBisCo LSMT C-terminal, substrate-binding domain) in Ribulose-1,5 bisphosphate carboxylase/oxygenase large subunit N-methyltransferase, chloroplastic. Showing 1 copy in chain B.
82210
Class: All beta proteins
Fold: beta-clip
Superfamily: SET domain
Occurring in:
  1. Ribulose-1,5 bisphosphate carboxylase/oxygenase large subunit N-methyltransferase, chloroplastic
The deposited structure of PDB entry 1mlv contains 3 copies of SCOP domain 82210 (RuBisCo LSMT catalytic domain) in Ribulose-1,5 bisphosphate carboxylase/oxygenase large subunit N-methyltransferase, chloroplastic. Showing 1 copy in chain B.