Protein Info for IAI46_20195 in Serratia liquefaciens MT49

Annotation: lipid-A-disaccharide synthase

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: 97% identical to LPXB_SERP5: Lipid-A-disaccharide synthase (lpxB) from Serratia proteamaculans (strain 568)

KEGG orthology group: K00748, lipid-A-disaccharide synthase [EC: 2.4.1.182] (inferred from 97% identity to spe:Spro_3777)

MetaCyc: 83% identical to lipid A disaccharide synthase (Escherichia coli K-12 substr. MG1655)
Lipid-A-disaccharide synthase. [EC: 2.4.1.182]

Predicted SEED Role

"Lipid-A-disaccharide synthase (EC 2.4.1.182)" in subsystem KDO2-Lipid A biosynthesis (EC 2.4.1.182)

MetaCyc Pathways

superpathway of (Kdo)₂-lipid A biosynthesis (17/17 steps found)
lipid IV_A biosynthesis (P. gingivalis) (9/9 steps found)
lipid IV_A biosynthesis (E. coli) (6/6 steps found)
lipid IV_A biosynthesis (H. pylori) (6/6 steps found)
lipid IV_A biosynthesis (P. putida) (6/6 steps found)
lipid IV_A biosynthesis (Vibrio cholerae serogroup O1 El Tor) (6/6 steps found)
lipid IV_A biosynthesis (generic) (6/6 steps found)
lipid IV_A biosynthesis (2,3-diamino-2,3-dideoxy-D-glucopyranose-containing) (5/6 steps found)
superpathway of Kdo₂-lipid A biosynthesis (18/25 steps found)

KEGG Metabolic Maps

Lipopolysaccharide biosynthesis

Isozymes

No predicted isozymes

Use Curated BLAST to search for 2.4.1.182

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

Find the best match in UniProt

Protein Sequence (382 amino acids)

>IAI46_20195 lipid-A-disaccharide synthase (Serratia liquefaciens MT49)
MQNRPLTIGLVAGETSGDILGAGLIRALKAQVPDARFVGVAGPLMQAEGCETWYEMEELA
VMGVVEVLERLPRLLKIRKDLTRRFSDLKPDVFVGIDAPDFNITLEGRLKQRGIRTIHYV
SPSVWAWRQKRVFKIGKATDLVLAFLPFEKAFYDRFNVPCRFIGHTMADAMPLQADKLAA
RATLGIAPDARCLALLPGSRSAEVEMLSADFLKTAQLLRTRYPDLELVVPLVNAKRREQF
ERIKAEVAPELRVHLLNGQGREAMVASDAALLASGTAALECMLAKCPMVVGYRMKPFTFW
LAQRLVKTPYVSLPNLLAGREIVTELLQHDCVPDKLAAAVMPLLEDGPQTDELKQTFLTL
HQSIRCGADEQAAQAVLELAKA