Protein Info for AMB_RS22255 in Magnetospirillum magneticum AMB-1
Annotation: bifunctional aconitate hydratase 2/2-methylisocitrate dehydratase
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
Best Hits
Swiss-Prot: 73% identical to ACNB_PSEAE: Aconitate hydratase B (acnB) from Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)
KEGG orthology group: K01682, aconitate hydratase 2 [EC: 4.2.1.3] (inferred from 85% identity to app:CAP2UW1_2356)MetaCyc: 72% identical to aconitate hydratase 2 (Salmonella enterica enterica serovar Typhimurium)
2-methylisocitrate dehydratase. [EC: 4.2.1.99]; Aconitate hydratase. [EC: 4.2.1.99, 4.2.1.3]
Predicted SEED Role
"Aconitate hydratase 2 (EC 4.2.1.3)" in subsystem Propionate-CoA to Succinate Module or TCA Cycle (EC 4.2.1.3)
MetaCyc Pathways
- superpathway of cytosolic glycolysis (plants), pyruvate dehydrogenase and TCA cycle (20/22 steps found)
- TCA cycle V (2-oxoglutarate synthase) (9/9 steps found)
- TCA cycle I (prokaryotic) (9/10 steps found)
- TCA cycle III (animals) (9/10 steps found)
- TCA cycle II (plants and fungi) (8/9 steps found)
- TCA cycle VII (acetate-producers) (8/9 steps found)
- superpathway of glycolysis, pyruvate dehydrogenase, TCA, and glyoxylate bypass (20/26 steps found)
- reductive TCA cycle I (9/11 steps found)
- TCA cycle IV (2-oxoglutarate decarboxylase) (7/9 steps found)
- superpathway of glyoxylate bypass and TCA (9/12 steps found)
- methylaspartate cycle (14/19 steps found)
- partial TCA cycle (obligate autotrophs) (6/8 steps found)
- ethene biosynthesis V (engineered) (18/25 steps found)
- glyoxylate cycle (4/6 steps found)
- TCA cycle VI (Helicobacter) (6/9 steps found)
- reductive TCA cycle II (8/12 steps found)
- nitrogen remobilization from senescing leaves (5/8 steps found)
- superpathway of glyoxylate cycle and fatty acid degradation (9/14 steps found)
- 2-methylcitrate cycle I (2/5 steps found)
- 2-methylcitrate cycle II (2/6 steps found)
- mixed acid fermentation (9/16 steps found)
KEGG Metabolic Maps
- Biosynthesis of alkaloids derived from histidine and purine
- Biosynthesis of alkaloids derived from ornithine, lysine and nicotinic acid
- Biosynthesis of alkaloids derived from shikimate pathway
- Biosynthesis of alkaloids derived from terpenoid and polyketide
- Biosynthesis of phenylpropanoids
- Biosynthesis of plant hormones
- Biosynthesis of terpenoids and steroids
- Citrate cycle (TCA cycle)
- Glyoxylate and dicarboxylate metabolism
- Propanoate metabolism
- Reductive carboxylate cycle (CO2 fixation)
Isozymes
Compare fitness of predicted isozymes for: 4.2.1.3
Use Curated BLAST to search for 4.2.1.3 or 4.2.1.99
Sequence Analysis Tools
PaperBLAST (search for papers about homologs of this protein)
Search CDD (the Conserved Domains Database, which includes COG and superfam)
Compare to protein 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 Q2VYX1 at UniProt or InterPro
Protein Sequence (861 amino acids)
>AMB_RS22255 bifunctional aconitate hydratase 2/2-methylisocitrate dehydratase (Magnetospirillum magneticum AMB-1) MLEAYRQHVAERAALGIPPLPLSAEQTEALVGLLQNPPKGEEQALVDLITYRVPAGVDDA AKIKAEFLDKVAKGTVACALISRETATQLLGTMLGGFNVKPLIELLSDAKVGAVAAEGLK KTLLVFDFFHDVKELADKGNANAKAVLQSWADAEWFTSRPEVPKSLTVTIFKVTGETNTD DLSPAPDAWSRPDIPLHALAMLKNPRPGIEADEPGNRGPLKQLDALAKKGNLVAYVGDVV GTGSSRKSATNSVLWFTGEDIPYVPNKRFGGVCLGTKIAPIFYNTMEDAGALPIELDVNQ MNMGDVVELRPYEGKALKDGKVIAEFTVKSEVIFDEVRAGGRIPLIIGRGLTAKAREALG LPVSTLFRLPAVPKDTGKGFSLAQKMVGRACGLPEGKGMRPGTYCEPKMTTVGSQDTTGP MTRDELKDLACLGFSADMVMQSFCHTAAYPKLVDVKTHRELPGFISTRGGVALRPGDGVI HSWLNRLLLPDTVGTGGDSHTRFPIGISFPAGSGLVAFAAATGVMPLDMPESVLVRFKGK MQPGVTLRDLVNAIPLYAIRAGLLTVEKKGKKNVFSGRILEIEGLPDLKVEQAFELSDAA AERSAAACSVRLDKAPIIEYMTSNITLMKWMIANGYEDARTLGRRIKAMEAWIKKPDLLA PDADAEYAAVIEIDLADVKEPIVACPNDPDDVKLLSEVAGAKIDEVFIGSCMTNIGHFRA AGKVLEGKSDIPTRLWIAPPTKMDAMILNEEGYYSVLGKSGARMEMPGCSLCMGNQAQIR KGSTAMSTSTRNFPNRLGIDTNVYLGSAELAAVCALMGKIPTVAEYLEQVNVVNAKAADV YRYMNFDKIAEFSDVAAKVAV