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
Gene expression levels in SubtiExpress: sunA
MW, pI	5 kDa, 7.963
Gene length, protein length	168 bp, 56 aa
Immediate neighbours	sunT, sunI
Sequences	Protein DNA Advanced_DNA
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed

Categories containing this gene/protein

miscellaneous metabolic pathways, biosynthesis of antibacterial compounds, toxins, antitoxins and immunity against toxins, 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

• Expression browser: 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)