Detailed information    

experimental Experimentally validated

Overview

Name   comYG   Type   Machinery gene
Locus tag   SMU_RS09005 Genome accession   NC_004350
Coordinates   1852500..1852889 (-) Length   129 a.a.
NCBI ID   WP_002263441.1    Uniprot ID   -
Organism   Streptococcus mutans UA159     
Function   dsDNA binding to the cell surface; assembly of the pseudopilus   
DNA binding and uptake

Function

RT-PCR analysis of the orf junctions confirmed that all nine orfs of comY operon were present in a single transcript, while real-time RT-PCR analysis demonstrated that these orfs were expressed at a level very similar to that of the first orf in the operon. Mutations were constructed in all nine putative orfs. The first seven genes (comYA-G) were found to be essential for natural competence, while comYH and comYI had reduced and normal natural competence ability, respectively.


Genomic Context

Location: 1847500..1857889
Locus tag Gene name Coordinates (strand) Size (bp) Protein ID Product Description
  SMU_RS08980 (SMU.1975c) - 1848296..1848958 (-) 663 WP_002263446.1 type II CAAX endopeptidase family protein -
  SMU_RS08985 (SMU.1976c) - 1849011..1849451 (-) 441 WP_002263445.1 hypothetical protein -
  SMU_RS08990 (SMU.1977c) - 1849420..1849665 (-) 246 WP_002263444.1 helix-turn-helix transcriptional regulator -
  SMU_RS08995 (SMU.1978) comYI 1850234..1851433 (-) 1200 WP_002263443.1 acetate kinase Machinery gene
  SMU_RS09000 (SMU.1979c) comYH 1851492..1852445 (-) 954 WP_002263442.1 class I SAM-dependent methyltransferase Machinery gene
  SMU_RS09005 (SMU.1980c) comYG 1852500..1852889 (-) 390 WP_002263441.1 competence type IV pilus minor pilin ComGG Machinery gene
  SMU_RS09010 (SMU.1981c) comYF 1852867..1853301 (-) 435 WP_002263440.1 competence type IV pilus minor pilin ComGF Machinery gene
  SMU_RS09015 (SMU.1982c) comYE 1853288..1853581 (-) 294 WP_002263439.1 competence type IV pilus minor pilin ComGE Machinery gene
  SMU_RS09020 (SMU.1983) comYD 1853553..1853957 (-) 405 WP_002263438.1 competence type IV pilus minor pilin ComGD Machinery gene
  SMU_RS09025 (SMU.1984) comYC 1853944..1854258 (-) 315 WP_002263437.1 competence type IV pilus major pilin ComGC Machinery gene
  SMU_RS09030 (SMU.1985) comYB 1854258..1855289 (-) 1032 WP_255262721.1 competence type IV pilus assembly protein ComGB Machinery gene
  SMU_RS09035 (SMU.1987) comYA 1855225..1856166 (-) 942 WP_002263435.1 competence type IV pilus ATPase ComGA Machinery gene
  SMU_RS09040 (SMU.1988c) - 1856296..1856679 (-) 384 WP_002263434.1 DUF1033 family protein -

Regulatory network

Positive effect      
Negative effect
Regulator Target Regulation
  irvR comYG negative effect
  irvR comYC negative effect
  irvR comYF negative effect
  irvR negative effect
  irvR comYD negative effect
  irvR dprA negative effect
  irvR comYB negative effect
  irvR comYE negative effect
  irvR comYH negative effect
  irvR comYI negative effect
  irvR comYA negative effect

Sequence

Protein


Download         Length: 129 a.a.        Molecular weight: 14954.27 Da        Isoelectric Point: 10.2940

>NTDB_id=391 SMU_RS09005 WP_002263441.1 1852500..1852889(-) (comYG) [Streptococcus mutans UA159]
MLFMKKIKAGVLLYALFMSAIFSLFLQFYLNRVVATERQNQAQLSASKAYLIADLTQDLAKDNFGQLTFNHGRSSYHKQE
GELLIKVHLTDGQSYQYRFNCVTENKEKGKFSVANKTFTKSIEKRHFQK

Nucleotide


Download         Length: 390 bp        

>NTDB_id=391 SMU_RS09005 WP_002263441.1 1852500..1852889(-) (comYG) [Streptococcus mutans UA159]
ATGCTTTTCATGAAAAAAATTAAAGCAGGCGTACTTCTATATGCTCTGTTTATGTCAGCAATCTTTAGTCTTTTCTTACA
ATTTTATCTTAATCGTGTTGTAGCAACAGAGAGACAAAATCAGGCACAATTATCGGCCAGTAAAGCTTATCTTATAGCAG
ATCTAACTCAAGATTTGGCTAAAGACAACTTTGGGCAGTTGACTTTTAATCACGGAAGGTCTAGTTATCATAAACAGGAA
GGAGAACTTCTGATAAAAGTCCATTTGACAGATGGTCAGTCCTACCAATATCGTTTTAACTGTGTAACAGAAAATAAGGA
AAAAGGAAAATTTAGTGTGGCTAATAAAACTTTTACTAAATCTATAGAAAAACGTCATTTTCAAAAATAG

Domains


No domain identified.



Secondary structure

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



3D structure

Source ID Structure

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
  comYG Streptococcus mutans UA140

100

100

1
  comGG/cglG Streptococcus pneumoniae R6

38.806

97.81

0.38
  comGG/cglG Streptococcus pneumoniae D39

38.806

97.81

0.38
  comGG/cglG Streptococcus pneumoniae Rx1

38.806

97.81

0.38
  comGG/cglG Streptococcus pneumoniae TIGR4

38.806

97.81

0.38

Multiple sequence alignment    



References

[1] Justin Merritt et al. (2005) A unique nine-gene comY operon in Streptococcus mutans. Microbiology (Reading, England) 151(Pt 1):157-166. [PMID: 15632435]