Protein Info for CCNA_03227 in Caulobacter crescentus NA1000

Annotation: TonB-dependent receptor

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 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 796 signal peptide" amino acids 1 to 31 (31 residues), see Phobius details PF07715: Plug" amino acids 54 to 164 (111 residues), 56.9 bits, see alignment E=2.7e-19 PF00593: TonB_dep_Rec" amino acids 342 to 756 (415 residues), 126.4 bits, see alignment E=2.9e-40

Best Hits

KEGG orthology group: None (inferred from 100% identity to ccs:CCNA_03227)

Predicted SEED Role

"Outer membrane receptor proteins, mostly Fe transport" in subsystem Hemin transport system

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

See A0A0H3CB54 at UniProt or InterPro

Protein Sequence (796 amino acids)

>CCNA_03227 TonB-dependent receptor (Caulobacter crescentus NA1000)
MSSGSVRLKKAGVYSAALLASTMLSGVAYAQAQSSQSTALEEVVVTAQKRSENLQDVPVS
IQALGSQKLEQLQISAFADYVQYLPSVSFTSSGPGFGQVYMRGVASGGDGNHSGSLPSVG
VYLDEQPVTTIQGALDIHVYDVARVEALAGPQGTLYGASSQAGTLRIITNKPSTAGFAAG
VDVELNKVAHGDSGHALEGFVNVPLSDKVAVRLVGWDVRDGGYIDNVAGTRTYTRGDSNR
TNDFTINNKARVRDDYNSVYTQGGRAALRVELDDNWVITPQVMGQVQKSNGSFSYDPKVG
DLKVKRFYPESAKDKWYQAAMTIEGQVANLDVTYAGSYLKRKTDTNSDYTDYSFFYDQVG
YGFYWTDNAGNLVNPSQFIQGQDDYKKESHEIRIASPQDKKLRFVVGGFYQKQTHDIFQN
YRIADIGSSISVPGYTGTIWLTKQQRIDRDKAAFGQAEYDITDKLMLTAGIRFFEAHNTL
VGFYGYGKGYGSTGERACFKAAVVPGSPCTNLDKGVKESGNVPKVTLTYKLDSDKLIYAT
YSKGFRPGGINRRSTLPPYQADYLKNYEAGWKTTWLNNSFRWNGAVFMEDWNNFQFSILG
ANGLTEIKNANQAQIKGIESDVTWVPVPGLTINAAAAYTDAKLTANYCGKTDGAGVPITV
CPKGSAGYPDGPQAPDGTSLPVTPKLKANLTARYDFSWGDWDNYVQGSMVAQSATWTDLR
LADRAALGKQKGWETVDLSGGMEKDGLTIGLYVKNVFDKRASLDRNAQCAISVCGAQYYI
VPNQPRTMGIKLGKAF