SunA

• Description: sublancin 168 lantibiotic antimicrobial precursor peptide
  
  

Gene name	sunA
Synonyms	yolG
Essential	no
Product	sublancin 168 lantibiotic antimicrobial precursor peptide
Function	antimicrobial peptide
MW, pI	5 kDa, 7.963
Gene length, protein length	168 bp, 56 aa
Immediate neighbours	sunT, sunI
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

Categories containing this gene/protein

miscellaneous metabolic pathways, biosynthesis of antibacterial compounds, SP-beta prophage, membrane proteins

This gene is a member of the following regulons

Abh regulon, AbrB regulon, Rok regulon, YvrHb regulon

The gene

Basic information

• Locus tag: BSU21480

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family: IPP isomerase type 2 family (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification: contains a glucose attached to a cysteine residue, glycosylation is essential for its antimicrobial activity PubMed

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization: cell membrane (according to Swiss-Prot)

Database entries

• Structure:

• UniProt: P68577

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: sunA PubMed

• Sigma factor:

• Regulation:
  • repressed by Rok PubMed
  • repressed during logrithmic growth (AbrB) PubMed

• Regulatory mechanism:
  • activated by YvrHb PubMed
  • Rok: transcription repression PubMed
  • AbrB: transcription repressionPubMed
  • Abh: transcription activation PubMed

• Additional information: the mRNA is very stable (half-life > 15 min) PubMed

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Additional publications: PubMed

Trent J Oman, John M Boettcher, Huan Wang, Xenia N Okalibe, Wilfred A van der Donk
Sublancin is not a lantibiotic but an S-linked glycopeptide.
Nat Chem Biol: 2011, 7(2);78-80
[PubMed:21196935] [WorldCat.org] [DOI] (I p)

Yun Luo, John D Helmann
Extracytoplasmic function sigma factors with overlapping promoter specificity regulate sublancin production in Bacillus subtilis.
J Bacteriol: 2009, 191(15);4951-8
[PubMed:19465659] [WorldCat.org] [DOI] (I p)

Mark A Strauch, Benjamin G Bobay, John Cavanagh, Fude Yao, Angelo Wilson, Yoann Le Breton
Abh and AbrB control of Bacillus subtilis antimicrobial gene expression.
J Bacteriol: 2007, 189(21);7720-32
[PubMed:17720793] [WorldCat.org] [DOI] (P p)

Masakuni Serizawa, Keisuke Kodama, Hiroki Yamamoto, Kazuo Kobayashi, Naotake Ogasawara, Junichi Sekiguchi
Functional analysis of the YvrGHb two-component system of Bacillus subtilis: identification of the regulated genes by DNA microarray and northern blot analyses.
Biosci Biotechnol Biochem: 2005, 69(11);2155-69
[PubMed:16306698] [WorldCat.org] [DOI] (P p)

Mark Albano, Wiep Klaas Smits, Linh T Y Ho, Barbara Kraigher, Ines Mandic-Mulec, Oscar P Kuipers, David Dubnau
The Rok protein of Bacillus subtilis represses genes for cell surface and extracellular functions.
J Bacteriol: 2005, 187(6);2010-9
[PubMed:15743949] [WorldCat.org] [DOI] (P p)

G Hambraeus, C von Wachenfeldt, L Hederstedt
Genome-wide survey of mRNA half-lives in Bacillus subtilis identifies extremely stable mRNAs.
Mol Genet Genomics: 2003, 269(5);706-14
[PubMed:12884008] [WorldCat.org] [DOI] (P p)

S H Paik, A Chakicherla, J N Hansen
Identification and characterization of the structural and transporter genes for, and the chemical and biological properties of, sublancin 168, a novel lantibiotic produced by Bacillus subtilis 168.
J Biol Chem: 1998, 273(36);23134-42
[PubMed:9722542] [WorldCat.org] [DOI] (P p)