Protein Info for b0619 in Escherichia coli BW25113

Name: citA
Annotation: sensory histidine kinase in two-component regulatory system with citB (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 50 100 150 200 250 300 350 400 450 500 552 transmembrane" amino acids 20 to 41 (22 residues), see Phobius details amino acids 179 to 202 (24 residues), see Phobius details PF17203: sCache_3_2" amino acids 63 to 173 (111 residues), 79.3 bits, see alignment E=1.1e-25 PF00989: PAS" amino acids 225 to 286 (62 residues), 25 bits, see alignment E=5.7e-09 PF02518: HATPase_c" amino acids 429 to 539 (111 residues), 64.1 bits, see alignment E=5.4e-21 PF14501: HATPase_c_5" amino acids 431 to 527 (97 residues), 36.9 bits, see alignment E=1e-12

Best Hits

Swiss-Prot: 100% identical to DPIB_ECOLI: Sensor histidine kinase DpiB (dpiB) from Escherichia coli (strain K12)

KEGG orthology group: K07700, two-component system, CitB family, cit operon sensor histidine kinase CitA [EC: 2.7.13.3] (inferred from 100% identity to eco:b0619)

MetaCyc: 100% identical to sensor histidine kinase DpiB (Escherichia coli K-12 substr. MG1655)
Histidine kinase. [EC: 2.7.13.3]

Predicted SEED Role

"Sensor kinase CitA, DpiB (EC 2.7.3.-)" in subsystem Orphan regulatory proteins (EC 2.7.3.-)

Isozymes

Compare fitness of predicted isozymes for: 2.7.13.3, 2.7.3.-

Use Curated BLAST to search for 2.7.13.3 or 2.7.3.-

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 P77510 at UniProt or InterPro

Protein Sequence (552 amino acids)

>b0619 sensory histidine kinase in two-component regulatory system with citB (NCBI) (Escherichia coli BW25113)
MLQLNENKQFAFFQRLAFPLRIFLLILVFSIFVIAALAQYFTASFEDYLTLHVRDMAMNQ
AKIIASNDSVISAVKTRDYKRLATIANKLQRDTDFDYVVIGDRHSIRLYHPNPEKIGYPM
QFTKQGALEKGESYFITGKGSMGMAMRAKTPIFDDDGKVIGVVSIGYLVSKIDSWRAEFL
LPMAGVFVVLLGILMLLSWFLAAHIRRQMMGMEPKQIARVVRQQEALFSSVYEGLIAVDP
HGYITAINRNARKMLGLSSPGRQWLGKPIVEVVRPADFFTEQIDEKRQDVVANFNGLSVI
ANREAIRSGDDLLGAIISFRSKDEISTLNAQLTQIKQYVESLRTLRHEHLNWMSTLNGLL
QMKEYDRVLAMVQGESQAQQQLIDSLREAFADRQVAGLLFGKVQRARELGLKMIIVPGSQ
LSQLPPGLDSTEFAAIVGNLLDNAFEASLRSDEGNKIVELFLSDEGDDVVIEVADQGCGV
PESLRDKIFEQGVSTRADEPGEHGIGLYLIASYVTRCGGVITLEDNDPCGTLFSIYIPKV
KPNDSSINPIDR