8cbo

Electron Microscopy
3.2Å resolution

Structure of human mitochondrial MRPP1-MRPP2 in complex with mitochondrial pre-tRNA-Ile

Released:
Source organism: Homo sapiens
Related structures: EMD-16547

Function and Biology Details

Reactions catalysed:
3-alpha,7-alpha,12-alpha-trihydroxy-5-beta-cholanate + NAD(+) = 3-alpha,12-alpha-dihydroxy-7-oxo-5-beta-cholanate + NADH
(2S,3S)-3-hydroxy-2-methylbutanoyl-CoA + NAD(+) = 2-methylacetoacetyl-CoA + NADH
Testosterone + NAD(+) = androstenedione + NADH
(S)-3-hydroxyacyl-CoA + NAD(+) = 3-oxoacyl-CoA + NADH
Androstan-3-alpha,17-beta-diol + NAD(+) = 17-beta-hydroxyandrostan-3-one + NADH
17-beta-estradiol + NAD(P)(+) = estrone + NAD(P)H
S-adenosyl-L-methionine + adenine(9) in tRNA = S-adenosyl-L-homocysteine + N(1)-methyladenine(9) in tRNA
S-adenosyl-L-methionine + guanine(9) in tRNA = S-adenosyl-L-homocysteine + N(1)-methylguanine(9) in tRNA
Sequence domain:

Structure analysis Details

Assembly composition:
hetero hexamer (preferred)
PDBe Complex ID:
PDB-CPX-245880 (preferred)
Entry contents:
2 distinct polypeptide molecules
1 distinct RNA molecule
Macromolecules (3 distinct):
3-hydroxyacyl-CoA dehydrogenase type-2 Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 255 amino acids
Theoretical weight: 26.34 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q99714 (Residues: 7-261; Coverage: 98%)
Gene names: ERAB, HADH2, HSD17B10, MRPP2, SCHAD, SDR5C1, XH98G2
Sequence domains: short chain dehydrogenase
tRNA methyltransferase 10 homolog C Chain: E
Molecule details ›
Chain: E
Length: 211 amino acids
Theoretical weight: 24.86 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q7L0Y3 (Residues: 175-385; Coverage: 52%)
Gene names: MRPP1, RG9MTD1, TRMT10C
Sequence domains: tRNA (Guanine-1)-methyltransferase
Mitochondrial Precursor tRNA-Ile(5,4) Chain: T
Molecule details ›
Chain: T
Length: 78 nucleotides
Theoretical weight: 25.12 KDa
Sequence domains: tRNA

Ligands and Environments


Cofactor: Ligand NAD 4 x NAD

Cofactor: Ligand SAH 1 x SAH
No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 3.2Å
Relevant EMDB volumes: EMD-16547
Expression system: Escherichia coli