Protein Info for LU632_RS03300 in Erwinia tracheiphila SCR3

Annotation: carbohydrate porin

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 50 100 150 200 250 300 350 400 450 520 signal peptide" amino acids 1 to 24 (24 residues), see Phobius details PF02264: LamB" amino acids 112 to 520 (409 residues), 326 bits, see alignment E=3.1e-101

Best Hits

Swiss-Prot: 65% identical to SCRY_SALTM: Sucrose porin (scrY) from Salmonella typhimurium

KEGG orthology group: K02024, maltoporin (inferred from 77% identity to pva:Pvag_pPag10155)

Predicted SEED Role

"Maltoporin (maltose/maltodextrin high-affinity receptor, phage lambda receptor protein)" in subsystem Maltose and Maltodextrin Utilization or Trehalose Uptake and Utilization

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

Find the best match in UniProt

Protein Sequence (520 amino acids)

>LU632_RS03300 carbohydrate porin (Erwinia tracheiphila SCR3)
MKKSTLAVAVTIGLLSAAGPAWSATDMSSIEARLAAMEKRLQAAEHCADVAENRAEAAEK
QAQQLASAQQKNQTTTAQVEQRTARLEQRNSSEAEPKPLQVPQKSSDEGFEFHGYARSGL
LMNSSAAKTQGGPTMTPAGETGGHVGRLGNEPDTYVEMNLEHKQTLANGATTRFKVMMAD
GQRTYNDWTSNTSSLNVRQAFVELGHLPTFTDGFKDATVWAGKRFDRDNFDIHWLDSDVV
FLAGTGAGVYDMRWGEQGHSNLSLYGRTFGDIENSENTAQNYILTSNNFYGPLQFMVSGM
RAKDNDDRLDTEGNKVKSDAANEGVHALVGLHNDSFYGLREGLSKTALLYGHGLGAEVKN
VGSDGALLSQADTWRLATYGITPLGGGWHLAPALLAQTSRNRYAKGDSYQWATANLRVIQ
EINQNFEMQYEGSYQYMDLRPEGYNNRNAVSGGFYKLTVAPTLKAGDVGDFLKRPEIRLF
ASWMDWDHHLDNYAGSDAFGSDGFKAGGEWNFGVQMETWF