2EX4: Human methyltransferase AD-003

Crystal Structure of Human methyltransferase AD-003 in complex with S-adenosyl-L-homocysteine. Determined by X-ray diffraction at 1.75 Å resolution. Released 15 Nov 2005.

Method
X-ray diffraction
Resolution
1.75 Å
Organism
Homo sapiens
Chains
2
Atoms
4,135
Mol. weight
55.41 kDa
Ligands
SAH
Released
15 Nov 2005

Explore 2EX4 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

2EX4 contains 32 α-helices and 20 β-strands across 2 chains. 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: 16 helices, 11 β-strands

ElementResiduesLengthSheet
α-helix2-54
α-helix9-2113
α-helix27-304
α-helix35-373
α-helix38-5013
α-helix51-533
β-strand65-6951
α-helix75-762
α-helix77-815
β-strand87-9261
α-helix95-10410
α-helix106-1116
β-strand112-11761
α-helix120-1223
α-helix125-1262
β-strand130-13671
α-helix139-1413
α-helix144-15714
β-strand158-170131
β-strand17112
β-strand175-17843
β-strand183-18643
β-strand18712
α-helix188-19710
β-strand202-20761
α-helix2161
β-strand217-22371
Chain B: 16 helices, 9 β-strands
ElementResiduesLengthSheet
α-helix2-43
α-helix9-2113
α-helix27-304
α-helix35-373
α-helix38-5316
β-strand65-6954
α-helix75-762
α-helix77-815
α-helix82-843
β-strand87-9264
α-helix95-10410
α-helix106-1116
β-strand112-11764
α-helix120-1223
α-helix125-1262
β-strand130-13674
α-helix139-1413
α-helix144-15714
β-strand158-171144
β-strand175-17844
β-strand183-18754
α-helix188-19710
β-strand202-20764
α-helix2161
β-strand217-22374

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
adrenal gland protein AD-003A, Bprotein241Homo sapiensQ9BV86 (AlphaFold model)
Sequence of entity 1 (A, B), FASTA
>2EX4_1 adrenal gland protein AD-003 (chains A, B)
MGSSHHHHHHSSGLVPRGSTSEVIEDEKQFYSKAKTYWKQIPPTVDGMLGGYGHISSIDI
NSSRKFLQRFLREGPNKTGTSCALDCGAGIGRITKRLLLPLFREVDMVDITEDFLVQAKT
YLGEEGKRVRNYFCCGLQDFTPEPDSYDVIWIQWVIGHLTDQHLAEFLRRCKGSLRPNGI
IVIKDNMAQEGVILDDVDSSVCRDLDVVRRIICSAGLSLLAEERQENLPDEIYHVYSFAL
R

Ligands and cofactors

IDNameFormulaCopies
SAHS-adenosyl-L-homocysteineC14 H20 N6 O5 S2

Primary citation

The Crystal Structure of Human AD-003 protein in complex with S-adenosyl-L-homocysteine. Min, J., Wu, H., Zeng, H. et al. To be published.

Other PDB entries of the same protein (UniProt Q9BV86 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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