Protein Info for Rru_A1957 in Rhodospirillum rubrum S1H

Annotation: ExsB (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 50 100 150 200 241 signal peptide" amino acids 1 to 28 (28 residues), see Phobius details PF06508: QueC" amino acids 9 to 224 (216 residues), 252.1 bits, see alignment E=5.7e-79 TIGR00364: queuosine biosynthesis protein QueC" amino acids 10 to 217 (208 residues), 205.8 bits, see alignment E=2.6e-65 PF00733: Asn_synthase" amino acids 11 to 66 (56 residues), 24.8 bits, see alignment E=2.6e-09

Best Hits

Swiss-Prot: 100% identical to QUEC_RHORT: 7-cyano-7-deazaguanine synthase (queC) from Rhodospirillum rubrum (strain ATCC 11170 / ATH 1.1.1 / DSM 467 / LMG 4362 / NCIB 8255 / S1)

KEGG orthology group: K06920, queuosine biosynthesis protein QueC (inferred from 100% identity to rru:Rru_A1957)

Predicted SEED Role

"Queuosine Biosynthesis QueC ATPase" in subsystem Queuosine-Archaeosine Biosynthesis

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 Q2RSY8 at UniProt or InterPro

Protein Sequence (241 amino acids)

>Rru_A1957 ExsB (NCBI) (Rhodospirillum rubrum S1H)
MPHSPTQRRAIVLVSGGLDSTTTLAIAQAEGFTVNALSFSYGQRHAVELEAARRVTQAFA
VERHVIATIDLRQFGGSALTDSIGVPKQRSLETMGAGIPVTYVPARNTVFLSFALAWAEV
LEANDVFIGVNALDYSGYPDCRPEYISAFQTMANLATKRGVEGTGVLTIHTPLIALTKGQ
IIRRGLDLGVDYALTHSCYDPSAEGEACGTCDSCLLRLKGFAENGLEDPVRYVGARSRAA
G