comGA [2020-01-26 12:40:15]

late competence protein, traffic ATPase, binds and transports transforming DNA, required for growth arrest of competent cells

locus: BSU_24730

pI: 8.89

mw: 40.30 kDa

protein length: 356 aa

gene length: 1071 bp

function: genetic competence

product: traffic ATPase

essential: no

synonyms

Genomic Context

categories

• [category|SW 3|Information processing] → [category|SW 3.1|Genetics] → [category|SW 3.1.7|Genetic competence]
• [category|SW 4|Lifestyles] → [category|SW 4.1|Exponential and early post-exponential lifestyles] → [category|SW 4.1.3|Genetic competence]
• [category|SW 6|Groups of genes] → [category|SW 6.2|Membrane proteins]
• [category|SW 6|Groups of genes] → [category|SW 6.4|Phosphoproteins] → [category|SW 6.4.1|Phosphorylation on an Arg residue]

Gene

Coordinates: 2,559,007 2,560,077

Phenotypes of a mutant

• loss of [SW|genetic competence]

The protein

Catalyzed reaction/ biological activity

• binds and transports transforming DNA
• sequesters [protein|A4C8719E06F774A6EB4D79757CC79CF89E453A54|MreB] during expression of [Pubmed|genetic competence] to inhibit cell elongation during escape from competence [Pubmed|26091431]

Protein family

• GSP E family (single member, according to UniProt)

Modification

• phosphorylated on Arg-28, Arg-71- and Arg-330 [Pubmed|22517742]

Structure

• [PDB|4PHT] (from Vibrio vulnificus, 38% identity) [pubmed|25092625]

[SW|Localization]

• peripheral membrane protein [Pubmed|9723928]
• localizes to cell poles in competent cells [Pubmed|16009133]
• localizes to one cell pole [Pubmed|21278288]

Additional information

• ComGA stability depends on [protein|49D996C9AED44A820A214C3DF60AB1B6E1508DEA|Maf] [Pubmed|21564336]

Expression and Regulation

Operons

• genes: [gene|41DFEF8A6BC7E34A6681C26D92F2B08DC120A957|comGA]-[gene|EA1C841FC77A1994A85E2E0C0A554482C3EC9323|comGB]-[gene|19D76B80386F825109C5FB4A34881D5D20F366DB|comGC]-[gene|D323AEF5AFB4FD2A074ABAB76A39BE26A4C6436F|comGD]-[gene|FF4DB7FDCEB440064E11E65CB0DBFB93FC785CF0|comGE]-[gene|DD266DC0D78B5C5E82EED7CC7F55D0CF8FB4BF7A|comGF]-[gene|89442BFDFBFF264D0C7F12DEA6F8130C55D1F3F8|comGG]-[gene|8F3751A3D0910C9BED7FBCE90AFF7FDACFDCBC0B|spoIIIL]
  description: [Pubmed|26735940,2507524]

  sigma factors

  • [protein|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|SigA]: sigma factor, [Pubmed|2507524], in [regulon|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|SigA regulon]
  • [protein|CFF318EE6CACDEE763FBF96A2ABB46E944679AAA|SigF]: sigma factor, [Pubmed|26735940], in [regulon|CFF318EE6CACDEE763FBF96A2ABB46E944679AAA|SigF regulon]

  regulatory mechanism

  • [protein|08CFA2C72931A75532D4289BC1D18A826DE9F9CA|ComK]: activation, [Pubmed|8196543], in [regulon|08CFA2C72931A75532D4289BC1D18A826DE9F9CA|ComK regulon]

  regulation

  • expressed early during sporulation in the forespore ([protein|search|SigF]) [Pubmed|26735940]

  additional information

  • the ''[SW|comGA]-[SW|comGB]-[SW|comGC]-[SW|comGD]-[SW|comGE]-[SW|comGF]-[SW|comGG]-[protein|search|spoIIIL]'' operon requires [SW|NusA] for expression [http://www.nature.com/articles/nmicrobiol20157 Reference]

Biological materials

Mutant

• BKE24730 ([gene|41DFEF8A6BC7E34A6681C26D92F2B08DC120A957|comGA]::erm trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKE24730 BGSC], [Pubmed|28189581], upstream reverse: _UP1_CAATTTGATTCCCTCTCCTT, downstream forward: _UP4_TAGAAAAGTCTGGTTGTTAA
• BKK24730 ([gene|41DFEF8A6BC7E34A6681C26D92F2B08DC120A957|comGA]::kan trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKK24730 BGSC], [Pubmed|28189581], upstream reverse: _UP1_CAATTTGATTCCCTCTCCTT, downstream forward: _UP4_TAGAAAAGTCTGGTTGTTAA
• BP914 (([gene|41DFEF8A6BC7E34A6681C26D92F2B08DC120A957|comGA]-[gene|EA1C841FC77A1994A85E2E0C0A554482C3EC9323|comGB]-[gene|19D76B80386F825109C5FB4A34881D5D20F366DB|comGC]-[gene|D323AEF5AFB4FD2A074ABAB76A39BE26A4C6436F|comGD]-[gene|FF4DB7FDCEB440064E11E65CB0DBFB93FC785CF0|comGE]-[gene|DD266DC0D78B5C5E82EED7CC7F55D0CF8FB4BF7A|comGF]-[gene|89442BFDFBFF264D0C7F12DEA6F8130C55D1F3F8|comGG])::phleo), available in [SW|Fabian Commichau]'s lab

GFP fusion

• GP1640 ''trpC2'' ''[gene|154862E3FFA7CEBA5725BAD08E09D0E1C6B7F946|ymdB]''::''spc'' P''comG-gfp'' (''cat''), available in [SW|Jörg Stülke]'s lab
• GP1643 P''comG-gfp'' (''cat'') in the NCIB3610 background, available in [SW|Jörg Stülke]'s lab
• PG389 [gene|DE4857E8A228F145EFB9B7AD817585258344ED1F|amyE]::(p[gene|41DFEF8A6BC7E34A6681C26D92F2B08DC120A957|comGA]-lacZ gfp cat) [pubmed|26110430], available in [SW|Leendert Hamoen]'s and [SW|Jörg Stülke]'s labs

References

Reviews

• 15083159

Original publications

• 11814663,9422590,16009133,11298275,17630974,9723928,21278288,12107147,8196543,2507524,21564336,21707789,22517742,25899641,26091431,25092625