Protein Info for HP15_1273 in Marinobacter adhaerens HP15

Annotation: 2-dehydro-3-deoxyphosphooctonate aldolase

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: 92% identical to KDSA_MARHV: 2-dehydro-3-deoxyphosphooctonate aldolase (kdsA) from Marinobacter hydrocarbonoclasticus (strain ATCC 700491 / DSM 11845 / VT8)

KEGG orthology group: K01627, 2-dehydro-3-deoxyphosphooctonate aldolase (KDO 8-P synthase) [EC: 2.5.1.55] (inferred from 92% identity to maq:Maqu_0920)

MetaCyc: 66% identical to 3-deoxy-D-manno-octulosonate 8-phosphate synthase (Escherichia coli K-12 substr. MG1655)
3-deoxy-8-phosphooctulonate synthase. [EC: 2.5.1.55]

Predicted SEED Role

"2-Keto-3-deoxy-D-manno-octulosonate-8-phosphate synthase (EC 2.5.1.55)" in subsystem KDO2-Lipid A biosynthesis (EC 2.5.1.55)

MetaCyc Pathways

superpathway of (Kdo)₂-lipid A biosynthesis (14/17 steps found)
CMP-3-deoxy-D-manno-octulosonate biosynthesis (5/5 steps found)
CMP-8-amino-3,8-dideoxy-D-manno-octulosonate biosynthesis (4/7 steps found)
superpathway of Kdo₂-lipid A biosynthesis (14/25 steps found)

KEGG Metabolic Maps

Lipopolysaccharide biosynthesis

Isozymes

No predicted isozymes

Use Curated BLAST to search for 2.5.1.55

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 E4PIG2 at UniProt or InterPro

Protein Sequence (281 amino acids)

>HP15_1273 2-dehydro-3-deoxyphosphooctonate aldolase (Marinobacter adhaerens HP15)
MAQSTVNVSGIDVANDKPFVLFGGMNVLESPELAMEVAEAYVEATGKLGIPYVFKASFDK
ANRSSVNSFRGPGLEKGLQILADIKSKFGVPIISDVHEPAQAAPAAQVCDIIQLPAFLSR
QTDLVVAMAKTGAVINIKKAQFLAPQEMKHIITKCEEAGNDKVILCERGSSFGYNNLVVD
MLGFGIMKAMNVPVMFDVTHSLQMPGGRADSAGGRRAQVTDLALAGMSQGLAGLFLEAHP
DPDKAKCDGPCALRLSQLEPFLQRVKAVDDLVKSFKPIDTA