Protein Info for Rru_A1928 in Rhodospirillum rubrum S1H

Annotation: Yeast 2-isopropylmalate synthase (NCBI)

These analyses and tools can help you predict a protein's function, but be skeptical. For enzymes, over 10% of annotations from KEGG or SEED are probably incorrect. For other types of proteins, the error rates may be much higher. MetaCyc and Swiss-Prot have low error rates, but the best hits in these databases are often quite distant, so this protein's function may not be the same. TIGRFam has low error rates. Finally, many experimentally-characterized proteins are not in any of these databases. To find relevant papers, use PaperBLAST.

Protein Families and Features

1 50 100 150 200 250 300 350 400 450 500 558 TIGR00970: 2-isopropylmalate synthase" amino acids 5 to 555 (551 residues), 817.6 bits, see alignment E=2.7e-250 PF00682: HMGL-like" amino acids 31 to 310 (280 residues), 250.6 bits, see alignment E=2e-78 PF08502: LeuA_dimer" amino acids 423 to 555 (133 residues), 82.8 bits, see alignment E=2.1e-27

Best Hits

Swiss-Prot: 100% identical to LEU1_RHORT: 2-isopropylmalate synthase (leuA) from Rhodospirillum rubrum (strain ATCC 11170 / ATH 1.1.1 / DSM 467 / LMG 4362 / NCIB 8255 / S1)

KEGG orthology group: K01649, 2-isopropylmalate synthase [EC: 2.3.3.13] (inferred from 100% identity to rru:Rru_A1928)

Predicted SEED Role

"2-isopropylmalate synthase (EC 2.3.3.13)" in subsystem Branched-Chain Amino Acid Biosynthesis or Leucine Biosynthesis (EC 2.3.3.13)

MetaCyc Pathways

KEGG Metabolic Maps

Isozymes

Compare fitness of predicted isozymes for: 2.3.3.13

Use Curated BLAST to search for 2.3.3.13

Sequence Analysis Tools

PaperBLAST (search for papers about homologs of this protein)

Search CDD (the Conserved Domains Database, which includes COG and superfam)

Search structures

Predict protein localization: PSORTb (Gram-negative bacteria)

Predict transmembrane helices and signal peptides: Phobius

Check the current SEED with FIGfam search

Find homologs in fast.genomics or the ENIGMA genome browser

See Q2RT17 at UniProt or InterPro

Protein Sequence (558 amino acids)

>Rru_A1928 Yeast 2-isopropylmalate synthase (NCBI) (Rhodospirillum rubrum S1H)
MMIDPSKKYRPFPPVALADRTWPSATITKAPIWCAVDLRDGNQALVEPMGADRKVRMFQL
LCELGYKEIEVGFPSASQTDFDFLRQLIERDMIPADVTIQVLTQAREDLISRTFQALEGA
SSAIVHLYNSTSTLQRRVVFALDRAGITDLAVRGAEMVREGAAKASASTKLRFQYSPESF
TGTELDYAVEICEAVMGVFEPTAEAPLILNLPSTVEMATPNVYADQIEWFCRALPHRDRV
LISLHPHNDRGTAVAAAELALMAGADRIEGTLFGNGERTGNVDLVTLGMNMFTQGIDPGI
DFSNIDHIREIAEECNRLPVHPRHPYAGDLVFTAFSGSHQDAINKGLHAMEKTNQDVWEV
PYLPIDPKDIGRSYEAVIRVNSQSGKGGVAHILERDYGIRMPRGLQVEFSKVVQAITDTT
GEEITSRGLWKTFEETYLGAGSPYSFLEHHTRPDPAGKDQRILTATVKAGGKVRDIDGRG
TGPIEALVDALRKDSGLAITIEDYEEHTLRPGSDAQAVAFIKASLPDGRAHYGVGIDANF
VVASLKAVLCAANHLSDK