View bacteriocin : Enterocin B

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Accession BAC101
Name Enterocin B
Related Entries Enterocin QEnterocin PEnterocin I (Enterocin L50A)Enterocin AEnterocin 1071A

Enterocin CRL35 (Mundticin KS)Enterocin SE-K4Enterocin AS-48 (BACTERIOCIN AS-48)Enterocin 96Enterocin E-760

Enterocin-HFEnterocin XalphaEnterocin XbetaEnterocin EJ97
Gene entB
Class class IIc, non subgrouped bacteriocins (problematic)
Producer Organism Enterococcus faecium (Streptococcus faecium) [Gram-positive]
Taxonomy BacteriaFirmicutesLactobacillalesEnterococcaceaeEnterococcus
Target organisms Gram_positive: Enterococcus faecalis JCM 5803 (MIC=86.9nM) - Enterococcus faecalis OU510 (MIC=174nM) - Enterococcus faecium TUA 1344L (MIC=43.4nM) - Enterococcus hirae ATCC 10541 (MIC=5.44nM) - Lactobacillus plantarum ATCC 14917 (MIC=86.9nM) - Lactobacillus sakei ssp. sakei JCM 1157 (MIC=5.44nM) - Bacillus coagulans JCM 2257 (MIC=89000nM) - Bacillus subtilis JCM 1465 (MIC=44500nM)
Swiss-Prot Entry O34017
PDB Entry Unknown
Other databases EMBL U87997EMBL AF076604EMBL AF121254InterPro IPR010133TIGRFAMs TIGR01847
[Ref. 1] | View abstract | Export citation
NUCLEOTIDE SEQUENCE, STRAIN=T136
MEDLINE=97388583;PubMed=9245817;
Casaus P., Nilsen T., Cintas L.M., Nes I.F., Hernandez P.E., Holo H.
"Enterocin B, a new bacteriocin from Enterococcus faecium T136 which can act synergistically with enterocin A.", Microbiology 143:0-0(0).

[Ref. 2]
NUCLEOTIDE SEQUENCE, STRAIN=T136
Casaus P., Nielsen T., Cintas L.M., Nes I.F., Hernandez P.E., Holo H.
"", Submitted (FEB-1997) to the EMBL/GenBank/DDBJ databases.

[Ref. 3] | View abstract | Export citation
NUCLEOTIDE SEQUENCE, STRAIN=BFE 900
MEDLINE=99240446;PubMed=10224016;
Franz C.M.A.P., Worobo R.W., Quadri L.E.N., Schillinger U., Holzapfel W.H., Vederas J.C., Stiles M.E.
"Atypical genetic locus associated with constitutive production of enterocin B by Enterococcus faecium BFE 900.", Appl. Environ. Microbiol. 65:2170-2178(1999).

[Ref. 4] | View abstract | Export citation
NUCLEOTIDE SEQUENCE, STRAIN=KU-B5.
PubMed=20418437;DOI=10.1128/AEM.02264-09
Hu C.-B., Malaphan W., Zendo T., Nakayama J., Sonomoto K.
"Enterocin X, a novel two-peptide bacteriocin from Enterococcus faecium KU-B5, has an antibacterial spectrum entirely different from those of its component peptides.", Appl. Environ. Microbiol. 76:4542-4545(2010).

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Sequence
 ........10 ........20 ........30 ........40 ........50 ........60 
          |          |          |          |          |          | 
 ENDHRMPNEL NRPNNLSKGG AKCGAAIAGG LFGIPKGPLA WAAGLANVYS KCN
Wheel representation
Composition
Formula C237 H377 N73 O70 S3
Absent amino acids QT
Common amino acids AGN
Mass (Da) 5484.14
Net charge +4
Isoelectric point 9.43
Basic residues 7
Acidic residues 3
Hydrophobic residues 18
Polar residues 20
Aliphatic residues 8
Tiny residues 18
Boman Index -61.76
Hydropathy Index -0.38
Aliphatic Index 72.08
Instability Index 13.58 (stable)
Half Life Mammalian : 1 hour
Yeast : 30 min
E. coli : >10 hour
Extinction Coefficient 7115 M-1 cm-1
Absorbance 280nm 136.83
Red solid plot : values according to the hydrophobicity scale of Kyte and Doolittle (reference paper).


Yellow dashed plot : Experimentally determined hydrophobicity scale for proteins at membrane interfaces(reference paper).


Green dotted-dashed plot : prediction of transmembrane helices (reference paper). In this scale (unlike the others), more negative values reflect greater hydrophobicity.

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