xhlB

putative holin, required for the formation of membrane vesicles in a sub-population of cells

locus: BSU_12800

pI: 9.50

mw: 9.59 kDa

protein length: 87 aa

gene length: 264 bp

function: host cell lysis

product: putative holin

essential: no

synonyms: xpaB

Genomic Context

categories

• [category|SW 5|Prophages and mobile genetic elements] → [category|SW 5.1|Prophages] → [category|SW 5.1.1|PBSX prophage]
• [category|SW 6|Groups of genes] → [category|SW 6.2|Membrane proteins]

Gene

Coordinates: 1,347,013 1,347,276

The protein

Protein family

• SPP1 holin family (with [protein|5997AFA5FB5AAEF92E930240AEC25B44E7BFB15E|BhlB], according to UniProt)

[SW|Localization]

• membrane (according to UniProt)

Expression and Regulation

Operons

• genes: [gene|630FC0D9BDD243D6BF94DBDE506EC2A9CB0AAFE6|xhlA]-[gene|360D866E939DDB822AFAC589D563B191A88695CD|xhlB]-[gene|50D7B97E4D3D41F74EF1942B85DE1DA4A33BEBB0|xlyA]
  description: [Pubmed|22383849]

• genes: [gene|DD4F52FE386EF75009ECF594ED4E2D1593220E4F|xtmA]-[gene|277F51EB4FE2BAB0FD1808EDE25705E10833AD0A|xtmB]-[gene|E77DD93E3CDCA9B81106E6AB0F18513360AAE9DB|xkdE]-[gene|6542BE447872C1A16C056DA21BD7A23C65F5C543|xkdF]-[gene|38173C76C27A7178CEE66E3642533EB34828C2CB|xkdG]-[gene|81C6812565B3E8ADCB19F52BDFFA9E55B94A2E9D|xkdH]-[gene|5ACCC439AD8849355094F8C5FC6EF29A9077EF58|xkdI]-[gene|6DF19E4546509687CA194F6B44EEB723C9467B9C|xkdJ]-[gene|31B1832E5EAD957EE6A5C7CB0C117EC0F26AA8AB|xkdK]-[gene|683D350D98AC0D27951145AD87830B89C0B4F393|xkdM]-[gene|0BF8AD1ACD0BBA6913636081B41E6D04D16D1BA2|xkdN]-[gene|156A8B699B32B268EBA1A0A1620C95D0DF630A4E|xkzB]-[gene|CD97483876F4FCCE451AD4F2A8AFD6F560074769|xkdO]-[gene|ED35852FAAD386CFB43F8D3DDEF28F7B05EC8B43|xkdP]-[gene|D5FDCC792D0E6B8D35BCDDC0D7B76025ACC900FF|xkdQ]-[gene|AF9706F2EBF056A404B5D7640D78D1E833805225|xkdR]-[gene|C222F247C225FD6DEBB103DFB169AEF87DFC0C0D|xkdS]-[gene|1234C9BC164FB47E003009E943124982260221C0|xkdT]-[gene|BDE032590D5F3504CDB4D6BD545153D681B65ADD|xkdU]-[gene|3BCF7587145CFEDEA2F36512ABF62D6B6A2886C5|xkzA]-[gene|9FAAA2E63B161862396C47CE5D1EA9191847FDAD|xkdV]-[gene|1F152F97AD20DABAC1D83EDC2177F46EAECC562C|xkdW]-[gene|787561F433911D090F801AD493F688895498542F|xkdX]-[gene|27BB6659541BA5368DEDB19EADCD372CE41244F5|xepA]-[gene|630FC0D9BDD243D6BF94DBDE506EC2A9CB0AAFE6|xhlA]-[gene|360D866E939DDB822AFAC589D563B191A88695CD|xhlB]-[gene|50D7B97E4D3D41F74EF1942B85DE1DA4A33BEBB0|xlyA]
  description: [Pubmed|22383849,2110147]

  sigma factors

  • [protein|458406A4E6824C24493CFC19718F10720AA3B453|Xpf]: sigma factor, [Pubmed|8083174], in [regulon|458406A4E6824C24493CFC19718F10720AA3B453|Xpf regulon]

  regulation

  • expression during spore [SW|germination] is strongly reduced under conditions of osmotic stress [Pubmed|27766092]

Biological materials

Mutant

• BKE12800 ([gene|360D866E939DDB822AFAC589D563B191A88695CD|xhlB]::erm trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKE12800 BGSC], [Pubmed|28189581], upstream reverse: _UP1_AAACGTGTTCATAAAAATCC, downstream forward: _UP4_CTGACGAAATAAGGAGAGAT
• BKK12800 ([gene|360D866E939DDB822AFAC589D563B191A88695CD|xhlB]::kan trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKK12800 BGSC], [Pubmed|28189581], upstream reverse: _UP1_AAACGTGTTCATAAAAATCC, downstream forward: _UP4_CTGACGAAATAAGGAGAGAT

References

• 9555893,7921239,28883390