Detailed information    

experimental Experimentally validated

Overview


Name   recA   Type   Machinery gene
Locus tag   KZB15_RS08680 Genome accession   NZ_CP079922
Coordinates   1726450..1727616 (-) Length   388 a.a.
NCBI ID   WP_001085462.1    Uniprot ID   P0A451
Organism   Streptococcus pneumoniae R36A     
Function   ssDNA binding; loading RecA onto ssDNA   
DNA processing

Function


RecA is the central recombinase enzyme essential for homologous recombination during natural transformation. It binds single-stranded DNA (ssDNA) internalized by the competence machinery, forms nucleoprotein filaments, and catalyzes strand pairing and exchange between the exogenous DNA and the host chromosome, enabling genomic integration of transformed DNA.


Genomic Context


Location: 1721450..1732616
Locus tag Gene name Coordinates (strand) Size (bp) Protein ID Product Description
  KZB15_RS08650 (KZB15_08655) - 1721757..1722182 (-) 426 WP_000204065.1 hypothetical protein -
  KZB15_RS08655 (KZB15_08660) - 1722311..1722670 (-) 360 WP_000749822.1 ImmA/IrrE family metallo-endopeptidase -
  KZB15_RS08660 (KZB15_08665) - 1722716..1722922 (-) 207 WP_000366091.1 hypothetical protein -
  KZB15_RS08665 (KZB15_08670) - 1722909..1723082 (-) 174 WP_000289349.1 helix-turn-helix domain-containing protein -
  KZB15_RS08670 (KZB15_08675) lytA 1723441..1724397 (-) 957 WP_000405235.1 N-acetylmuramoyl-L-alanine amidase LytA -
  KZB15_RS08675 (KZB15_08680) - 1724773..1726143 (-) 1371 WP_001036271.1 MATE family efflux transporter -
  KZB15_RS08680 (KZB15_08685) recA 1726450..1727616 (-) 1167 WP_001085462.1 recombinase RecA Machinery gene
  KZB15_RS08685 (KZB15_08690) cinA 1727671..1728927 (-) 1257 WP_000642700.1 competence/damage-inducible protein A Machinery gene
  KZB15_RS08690 (KZB15_08695) - 1729012..1730028 (-) 1017 WP_000239282.1 LCP family protein -
  KZB15_RS08695 (KZB15_08700) - 1730036..1730554 (-) 519 WP_000455537.1 GNAT family N-acetyltransferase -
  KZB15_RS08700 (KZB15_08705) tsaE 1730544..1730987 (-) 444 WP_000288232.1 tRNA (adenosine(37)-N6)-threonylcarbamoyltransferase complex ATPase subunit type 1 TsaE -
  KZB15_RS08705 (KZB15_08710) comM 1731073..1731693 (-) 621 WP_000839908.1 hypothetical protein Regulator

Sequence


Protein


Download         Length: 388 a.a.        Molecular weight: 41949.78 Da        Isoelectric Point: 4.8403

>NTDB_id=648 KZB15_RS08680 WP_001085462.1 1726450..1727616(-) (recA) [Streptococcus pneumoniae R36A]
MAKKPKKLEEISKKFGAEREKALNDALKLIEKDFGKGSIMRLGERAEQKVQVMSSGSLALDIALGSGGYPKGRIIEIYGP
ESSGKTTVALHAVAQAQKEGGIAAFIDAEHALDPAYAAALGVNIDELLLSQPDSGEQGLEIAGKLIDSGAVDLVVVDSVA
ALVPRAEIDGDIGDSHVGLQARMMSQAMRKLGASINKTKTIAIFINQLREKVGVMFGNPETTPGGRALKFYASVRLDVRG
NTQIKGTGDQKETNVGKETKIKVVKNKVAPPFKEAVVEIMYGEGISKTGELLKIASDLDIIKKAGAWYSYKDEKIGQGSE
NAKKYLAEHPEIFDEIDKQVRSKFGLIDGEEVSEQDTENKKDEPKKEEAVNEEVPLDLGDELEIEIEE

Nucleotide


Download         Length: 1167 bp        

>NTDB_id=648 KZB15_RS08680 WP_001085462.1 1726450..1727616(-) (recA) [Streptococcus pneumoniae R36A]
ATGGCGAAAAAACCAAAAAAATTAGAAGAAATTTCAAAAAAATTTGGGGCAGAACGTGAAAAGGCCTTGAATGACGCTCT
TAAATTGATTGAGAAAGACTTTGGTAAAGGATCAATCATGCGTTTGGGTGAACGTGCGGAGCAAAAGGTGCAAGTGATGA
GCTCAGGTTCTTTAGCTCTTGACATTGCCCTTGGCTCAGGTGGTTATCCTAAGGGACGTATCATCGAAATCTATGGCCCA
GAGTCATCTGGTAAGACAACGGTTGCCCTTCATGCAGTTGCACAAGCGCAAAAAGAAGGTGGGATTGCTGCCTTTATCGA
TGCGGAACATGCCCTTGATCCAGCTTATGCTGCGGCCCTTGGTGTCAATATTGACGAATTGCTCTTGTCTCAACCAGACT
CAGGAGAGCAAGGTCTTGAGATTGCGGGAAAATTGATTGACTCAGGTGCAGTTGATCTTGTCGTAGTCGACTCAGTTGCT
GCCCTTGTTCCTCGTGCGGAAATTGATGGAGATATCGGAGATAGCCATGTTGGTTTGCAGGCTCGTATGATGAGCCAGGC
CATGCGTAAACTTGGCGCCTCTATCAATAAAACCAAAACAATTGCCATTTTTATCAACCAATTGCGTGAAAAAGTTGGAG
TGATGTTTGGAAATCCAGAAACAACACCGGGCGGACGTGCTTTGAAATTCTATGCTTCAGTCCGCTTGGATGTTCGTGGT
AATACACAAATTAAGGGAACTGGTGATCAAAAAGAAACCAATGTCGGTAAAGAAACTAAGATTAAGGTTGTAAAAAATAA
GGTAGCTCCACCGTTTAAGGAAGCCGTAGTTGAAATTATGTACGGAGAAGGAATTTCTAAGACTGGTGAGCTTTTGAAGA
TTGCAAGCGATTTGGATATTATCAAAAAAGCAGGGGCTTGGTATTCTTACAAAGATGAAAAAATTGGGCAAGGTTCTGAG
AATGCTAAGAAATACTTGGCAGAGCACCCAGAAATCTTTGATGAAATTGATAAGCAAGTCCGTTCTAAATTTGGCTTGAT
TGATGGAGAAGAAGTTTCAGAACAAGATACTGAAAACAAAAAAGATGAGCCAAAGAAAGAAGAAGCAGTGAATGAAGAAG
TTCCGCTTGACTTAGGCGATGAACTTGAAATCGAAATTGAAGAATAA


Secondary structure


Protein secondary structures were predicted by S4PRED and visualized by seqviz.



3D structure


Source ID Structure
  AlphaFold DB P0A451

Transmembrane helices


Transmembrane helices of protein were predicted by TMHMM 2.0 and visualized by seqviz and ECharts.



Visualization of predicted probability:


Similar proteins


Only experimentally validated proteins are listed.

Protein Organism Identities (%) Coverage (%) Ha-value
  recA Streptococcus pneumoniae TIGR4

100

100

1

  recA Streptococcus pneumoniae D39

100

100

1

  recA Streptococcus pneumoniae Rx1

100

100

1

  recA Streptococcus pneumoniae R6

100

100

1

  recA Streptococcus mitis NCTC 12261

94.072

100

0.951

  recA Streptococcus mitis SK321

93.557

100

0.945

  recA Streptococcus thermophilus LMD-9

84.935

100

0.863

  recA Streptococcus pyogenes NZ131

84.156

100

0.857

  recA Streptococcus thermophilus LMG 18311

84.715

100

0.852

  recA Streptococcus mutans UA159

83.204

100

0.841

  recA Lactococcus lactis subsp. cremoris KW2

74.805

99.483

0.744

  recA Bacillus subtilis subsp. subtilis str. 168

66.477

100

0.672

  recA Latilactobacillus sakei subsp. sakei 23K

67.919

97.465

0.662

  recA Staphylococcus aureus strain ATCC 12600

64.943

100

0.651

  recA Neisseria gonorrhoeae strain FA1090

59.544

100

0.601

  recA Neisseria gonorrhoeae MS11

59.544

100

0.601

  recA Acinetobacter nosocomialis M2

59.827

98.857

0.591

  recA Riemerella anatipestifer ATCC 11845 = DSM 15868

60.725

96.501

0.586

  recA Campylobacter jejuni subsp. jejuni NCTC 11168 = ATCC 700819

58.824

99.125

0.583

  recA Acinetobacter baumannii D1279779

61.963

93.41

0.579

  recA Glaesserella parasuis strain SC1401

57.641

100

0.578

  recA Deinococcus radiodurans R1 = ATCC 13939 = DSM 20539

64.706

88.981

0.576

  recA Vibrio cholerae O1 biovar El Tor strain E7946

62.848

91.243

0.573

  recA Vibrio cholerae strain A1552

62.848

91.243

0.573

  recA Acinetobacter baylyi ADP1

61.35

93.41

0.573

  recA Helicobacter pylori 26695

56.125

100

0.568

  recA Helicobacter pylori strain NCTC11637

56.125

100

0.568

  recA Ralstonia pseudosolanacearum GMI1000

59.697

93.75

0.56

  recA Pseudomonas stutzeri DSM 10701

59.509

93.948

0.559


References


[1] David De Lemos et al. (2025) Competence induction of homologous recombination genes protects pneumococcal cells from genotoxic stress. MBio 16(1):e0314224. [PMID: 39611665]
[2] Calum H G Johnston et al. (2023) The RecA-directed recombination pathway of natural transformation initiates at chromosomal replication forks in the pneumococcus. Proceedings of The National Academy of Sciences of The United States of America 120(8):e2213867120. [PMID: 36795748]
[3] Maud Hertzog et al. (2023) Assembly mechanism and cryoEM structure of RecA recombination nucleofilaments from Streptococcus pneumoniae. Nucleic Acids Research 51(6):2800-2817. [PMID: 36806960]
[4] Johnny Lisboa et al. (2014) Molecular determinants of the DprA-RecA interaction for nucleation on ssDNA. Nucleic Acids Research 42(11):7395-408. [PMID: 24782530]
[5] Nicolas Mirouze et al. (2013) Direct involvement of DprA, the transformation-dedicated RecA loader, in the shut-off of pneumococcal competence. Proceedings of The National Academy of Sciences of The United States of America 110(11):E1035-44. [PMID: 23440217]
[6] V Sistek et al. (2012) Development of a real-time PCR assay for the specific detection and identification of Streptococcus pseudopneumoniae using the recA gene. Clinical Microbiology And Infection : The Official Publication of The European Society of Clinical Microbiology And Infectious Diseases 18(11):1089-96. [PMID: 22022828]
[7] Diane E Grove et al. (2012) Stimulation of the Streptococcus pneumoniae RecA protein-promoted three-strand exchange reaction by the competence-specific SsbB protein. Biochemical And Biophysical Research Communications 424(1):40-4. [PMID: 22713474]
[8] Sophie Quevillon-Cheruel et al. (2012) Structure-function analysis of pneumococcal DprA protein reveals that dimerization is crucial for loading RecA recombinase onto DNA during transformation. Proceedings of The National Academy of Sciences of The United States of America 109(37):E2466-75. [PMID: 22904190]
[9] Isabelle Mortier-Barrière et al. (2007) A key presynaptic role in transformation for a widespread bacterial protein: DprA conveys incoming ssDNA to RecA. Cell 130(5):824-36. [PMID: 17803906]
[10] Scott N Peterson et al. (2004) Identification of competence pheromone responsive genes in Streptococcus pneumoniae by use of DNA microarrays. Molecular Microbiology 51(4):1051-70. [PMID: 14763980]
[11] Francine S Katz et al. (2003) Three-strand exchange by the Escherichia coli RecA protein using ITP as a nucleotide cofactor: mechanistic parallels with the ATP-dependent reaction of the RecA protein from Streptococcus pneumoniae. The Journal of Biological Chemistry 278(38):35889-96. [PMID: 12842880]
[12] Mathieu Bergé et al. (2003) Transformation of Streptococcus pneumoniae relies on DprA- and RecA-dependent protection of incoming DNA single strands. Molecular Microbiology 50(2):527-36. [PMID: 14617176]
[13] Scott E Steffen et al. (2002) Complete inhibition of Streptococcus pneumoniae RecA protein-catalyzed ATP hydrolysis by single-stranded DNA-binding protein (SSB protein): implications for the mechanism of SSB protein-stimulated DNA strand exchange. The Journal of Biological Chemistry 277(17):14493-500. [PMID: 11854290]
[14] Mohammad A Hedayati et al. (2002) Effect of the Streptococcus pneumoniae MmsA protein on the RecA protein-promoted three-strand exchange reaction. Implications for the mechanism of transformational recombination. The Journal of Biological Chemistry 277(28):24863-9. [PMID: 11960988]
[15] S E Steffen et al. (2000) Purification and characterization of the RecA protein from Streptococcus pneumoniae. Archives of Biochemistry And Biophysics 382(2):303-9. [PMID: 11068882]
[16] I Mortier-Barrière et al. (1998) Competence-specific induction of recA is required for full recombination proficiency during transformation in Streptococcus pneumoniae. Molecular Microbiology 27(1):159-70. [PMID: 9466264]
[17] I Mortier-Barriere et al. (1997) Control of recombination rate during transformation of Streptococcus pneumoniae: an overview. Microbial Drug Resistance (Larchmont, N.Y.) 3(3):233-42. [PMID: 9270992]
[18] B Martin et al. (1995) The recA gene of Streptococcus pneumoniae is part of a competence-induced operon and controls lysogenic induction. Molecular Microbiology 15(2):367-79. [PMID: 7538190]
[19] B J Pearce et al. (1995) The rec locus, a competence-induced operon in Streptococcus pneumoniae. Journal of Bacteriology 177(1):86-93. [PMID: 7798154]
[20] B Martin et al. (1995) The recA gene of Streptococcus pneumoniae is part of a competence-induced operon and controls an SOS regulon. Developments in Biological Standardization 85:293-300. [PMID: 8586192]
[21] B Martin et al. (1992) Identification of the recA gene of Streptococcus pneumoniae. Nucleic Acids Research 20(23):6412. [PMID: 1475203]