Protein Info for KEDOAH_22300 in Escherichia coli ECRC99

Name: kdsB
Annotation: 3-deoxy-manno-octulosonate cytidylyltransferase

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 50 100 150 200 248 TIGR00466: 3-deoxy-D-manno-octulosonate cytidylyltransferase" amino acids 1 to 241 (241 residues), 455.1 bits, see alignment E=2.4e-141 PF02348: CTP_transf_3" amino acids 4 to 221 (218 residues), 268.2 bits, see alignment E=6.3e-84 PF12804: NTP_transf_3" amino acids 19 to 135 (117 residues), 49.9 bits, see alignment E=4.3e-17

Best Hits

Swiss-Prot: 100% identical to KDSB_ECO5E: 3-deoxy-manno-octulosonate cytidylyltransferase (kdsB) from Escherichia coli O157:H7 (strain EC4115 / EHEC)

KEGG orthology group: K00979, 3-deoxy-manno-octulosonate cytidylyltransferase (CMP-KDO synthetase) [EC: 2.7.7.38] (inferred from 99% identity to eco:b0918)

MetaCyc: 99% identical to 3-deoxy-manno-octulosonate cytidylyltransferase (Escherichia coli K-12 substr. MG1655)
3-deoxy-manno-octulosonate cytidylyltransferase. [EC: 2.7.7.38]

Predicted SEED Role

"3-deoxy-manno-octulosonate cytidylyltransferase (EC 2.7.7.38)" in subsystem KDO2-Lipid A biosynthesis (EC 2.7.7.38)

MetaCyc Pathways

KEGG Metabolic Maps

Isozymes

No predicted isozymes

Use Curated BLAST to search for 2.7.7.38

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 (248 amino acids)

>KEDOAH_22300 3-deoxy-manno-octulosonate cytidylyltransferase (Escherichia coli ECRC99)
MSFVVIIPARYASTRLPGKPLVDINGKPMIVHVLERARESGAERIIVATDHEDVARAVEA
AGGEVCMTRADHQSGTERLAEVVEKCAFSDDTVIVNVQGDEPMIPATIIRQVADNLAQRQ
VGMATLAVPIHNAEEAFNPNAVKVVLDAEGYALYFSRATIPWDRDRFAKGLETVGDNFLR
HLGIYGYRAGFIRRYVTWQPSPLEHIEMLEQLRVLWYGEKIHVAVAHEVPGTGVDTPEDL
ERVRAEMR