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Abstract
Full Text
Global Transposon Mutagenesis and a Minimal Mycoplasma Genome
Clyde A. Hutchison III, Scott N. Peterson, Steven R. Gill, Robin T. Cline, Owen White, Claire M. Fraser, Hamilton O. Smith, and J. Craig Venter

Supplementary Material

Disrupted Mycoplasma genitalium genes (or M. pneumoniae homologs)

This table lists transposon insertion sites more than 9 bases downstream of the first base in the initiation codon, and located in the 5´-most 80% of the coding sequence (hits in the COOH-terminal 20% of proteins are considered potentially nondisruptive; see text). An M. genitalium gene is listed (MGXXX) if a presumptively disruptive hit has been identified in M. genitalium (g), its M. pneumoniae ortholog (p), or both (g/p). The second column lists the M. pneumoniae ortholog of the gene (MPYYY) where YYY corresponds to the gene designation in Fig. 2. The number of distinct sites in M. genitalium and M. pneumoniae (X and Y) at which such insertions have been observed are indicated by gX and/or pY in the column "Disrupted species". Entries for genes in which we have observed more that one independent disruptive event are shown in red. If the gene is a member of the proposed minimal gene set of Mushegian and Koonin (1), then the gene designation is underlined. Gene functions are from the current TIGR version of the M. genitalium annotation
(www.tigr.org/~clyde/Mgengenes99.html).
If the assignment of a gene to the minimal gene set (1) is based on a different functional assignment, then that assignment is also shown in square brackets, i.e., [alternate assignment]. The name of each functional class is followed by a fraction in parentheses. This fraction indicates the number of putative dispensable genes observed over the total number of genes within that functional class. For this analysis we have pooled the functional classes "Unknown" and "Hypothetical" into a class we call "Unknown function".

Mycoplasma genes with Tn4001 insertions
M.gen. M.pn. Disrupted       Gene function
gene   gene  species

                                          Purines, pyrimidines, nucleosides, and nucleotides (5/19)

                                              2'-Deoxyribonucleotide metabolism
MG231  MP513  p1        ribonucleoside-diphosphate reductase,
alpha chain (nrdE)
MG227  MP517  p1        thymidylate synthase (thyA)
                     Salvage of nucleosides and nucleotides
MG049  MP092  g1        purine-nucleoside phosphorylase (deoD)
MG051  MP090  g1        thymidine phosphorylase (deoA)
MG052  MP089  g2        cytidine deaminase (cdd)
                   Fatty acid and phospholipid metabolism (1/8)
                     Degradation
MG310 MP395   g5         lipase/esterase, putative
                   Biosynthesis of cofactors, prosthetic groups, and carriers (1/4)
                     Lipoate
MG270 MP450   p1         lipoate protein ligase (lplA)
                   Central intermediary metabolism (3/7)
                     Other
MG293 MP420   g6        glycerophosphoryl diester phosphodiesterase, putative
MG299 MP412   p1          phosphotransacetylase (pta)
MG394 MP266   g1          serine hydroxymethyltransferase (glyA)

                   Energy metabolism (1/33)
                     Sugars
MG118 MP577   p1          UDP-glucose 4-epimerase (galE)

                   Transport and binding proteins(8/33)
                     Anions
MG410 MP233   g1/p2     phosphate ABC transporter, ATP-binding protein (pstB)
MG411 MP232   g4        phosphate ABC transporter, permease protein (pstA)

                     Carbohydrates, organic alcohols, and acids
MG033 MP111   g2        glycerol uptake facilitator (glpF)
MG062 MP077   g4/p1     PTS system,  fructose-specific IIABC component (fruA)

                    Unknown substrate
MG014 MP136   g1          ABC transporter, ATP-binding protein
MG467 MP159   g1          ABC transporter, ATP-binding protein

MG390 MP271   g1/p2       ABC transporter, ATP-binding protein
MG291 MP422   g1          transport system permease protein P69
                   DNA metabolism (6/29)
                     DNA replication, recombination, and repair
MG244 MP496   p2           DNA helicase II, putative
MG261 MP460   p1           DNA polymerase III, subunit alpha (polC-2)
MG339 MP351   g3           recA protein (recA)
MG380 MP284   g1           glucose-inhibited division protein B gidB)

MG421 MP223   g1/p1        excinuclease ABC subunit A (uvrA)
MG469 MP156   p1           chromosomal replication initiator protein
(dnaA)

                   Transcription (3/13)
                           Transcription factors
MG249 MP485   p1           RNA polymerase sigma-43 factor (rpoD)
                     RNA processing

MG017 MP134   g2           ATP-dependent RNA helicase, putative
MG308 MP397   g1           ATP-dependent RNA helicase, putative
                   Protein synthesis (6/90)
                     tRNA aminoacylation
MG345 MP322   g1           isoleucyl-tRNA synthetase (ileS)
MG455 MP173   p1           tyrosyl-tRNA synthetase (tyrS)
                     Ribosomal proteins: synthesis and modification
MG426 MP218   g1           ribosomal protein L28 (rpL28)
                     tRNA and rRNA base modification

MG182 MP636   g5           pseudouridylate synthase I (hisT)
MG252 MP482   p1           rRNA methylase, putative

MG346 MP321   g1/p2        rRNA methylase, putative
                   Protein fate (4/21)
                     Protein modification and repair
MG106 MP588   g1           polypeptide deformylase (def)
                     Protein folding and stabilization

MG392 MP269   p2           heat shock protein (groEL)
                     Degradation of proteins, peptides, and glycopeptides
MG183 MP635   g1           oligoendopeptidase F (pepF)
MG355 MP311   p3           ATP-dependent Clp protease, ATPase subunit (clpB)
                   Regulatory functions (3/5)
                     Other
MG085 MP609   g1           hpr(ser) kinase, putative

MG278 MP442  p7            guanosine-3',5'- bis(diphosphate) 3'- pyrophosphohydrolase (spoT)
MG408 MP235   g2           peptide methionine sulfoxide reductase (pmsR)

                   Cell envelope (18/29)
                     Lipoproteins
MG040 MP102   p1           lipoprotein, putative
MG045 MP096   p1           lipoprotein, putative [spermidine/putrescine periplasmic binding protein]
MG067 MP256   g3           lipoprotein, putative
MG068 MP255   p1           lipoprotein, putative
MG149 MP670   g1           lipoprotein, putative
MG185 MP633   g1           lipoprotein, putative

MG186 MP022   g2           lipoprotein, putative
MG260 MP552   p2           lipoprotein, putative

MG307 MP404   p1           lipoprotein, putative
MG338 MP352   g1           lipoprotein, putative

MG395 MP250   g40          lipoprotein, putative
MG412 MP231   g3           lipoprotein, putative
MG440 MP199   g2           lipoprotein, putative

                     Surface structures
MG191 MP014   g1/p1        adhesin P1 (mgpB)
MG192 MP013   g1/p2        mgpC protein (mgpC)
MG218 MP527   p4           cytadherence accessory protein (hmw2)

MG317 MP388   g1           cytadherence accessory protein (hmw3)
                     Biosynthesis of surface polysaccharides and lipopolysaccharides

MG137 MP558   p2           UDP-galactopyranose mutase (glf)
                   Cellular processes (1/6)
                     Adaptations to atypical conditions
MG470 MP154   g2           soj protein (soj)
                   Unknown function (69/180)
MG002 MP152   g1           Unknown function (dnaJ-like protein)

MG009 MP145   g9           Unknown function [uncharacterized ACR (metal-utilizing enzyme?)]
MG010 MP140   g1           Unknown function
MG011 MP139   g8           Unknown function
MG024 MP128   p2           Unknown function (GTP-binding protein, putative)

MG025 MP126   g1           Unknown function
MG029 MP122   g5           Unknown function
MG032 MP112   g5           Unknown function
MG039 MP103   p2           Unknown function

MG055 MP086   p1           Unknown function [preprotein translocase subunit (secE)]
MG059 MP081   p1           Unknown function (small protein (smpB))[LPS-heptosyl-2-transferase]
MG074 MP620   p1           Unknown function

MG096 MP598   g4           Unknown function
MG103 MP591   g1           Unknown function
MG110 MP584   g1           Unknown function
MG116 MP579   p4           Unknown function
MG130 MP565   g1           Unknown function
MG131 ----    g1           Unknown function

MG132 MP563   g6           Unknown function (hit protein, putative)
MG140 MP002   g4/p1        Unknown function
MG202 MP034   g1/p1        Unknown function
MG207 MP209   g4/p1        Unknown function
MG208 MP545   p2           Unknown function
MG209 MP544   g1/p1        Unknown function(sfhB protein, putative)[pseudouridylate synthase(YceC)]

MG213 MP537   g1           Unknown function
MG226 MP518   g2/p2        Unknown function
MG236 MP508   p4           Unknown function
MG237 MP507   g1/p1        Unknown function

MG241 MP500   p1           Unknown function
MG255 MP479   g4           Unknown function
MG255.1 MP479 g3           Unknown function
MG256 MP478   g2           Unknown function
MG263 MP457   p2           Unknown function
MG264 MP456   g3           Unknown function

MG268 MP452   g1           Unknown function [dG-dA kinase I]
MG269 MP451   g40          Unknown function
MG279 MP441   g8/p3        Unknown function
MG280 MP440   g10/p13      Unknown function
MG281 MP439   g28/p5       Unknown function

MG284 MP436   p1           Unknown function
MG285 MP435   g3           Unknown function
MG286 MP434   g1           Unknown function
MG288 ----    g4           Unknown function (authentic frameshift)
MG294 MP419   g5/p1        Unknown function

MG295 MP418   g1            Unknown function [ATP-utilizing enzyme (Gua family)]
MG296 MP417   g2           Unknown function
MG306 MP405   p1           Unknown function
MG316 MP389   g3           Unknown function
MG320 MP385   p1           Unknown function
MG320.1 ----  g1           Unknown function
MG323.1 MP371 g1           Unknown function

MG328 MP366   g9           Unknown function
MG335 MP359   g1           Unknown function (GTP-binding protein)[GTPase]
MG343 MP324   g1           Unknown function
MG352 ----    g1           Unknown function
MG366 MP298   g1           Unknown function

MG370 MP294   g5           Unknown function
MG372 MP292   g1/p1        Unknown function
MG385 MP276   g4/p3        Unknown function

MG389 MP272   p1           Unknown function
MG414 MP230   g2/p9        Unknown function
MG415 MP229   g1/p2        Unknown function

MG423 MP221   g1           Unknown function
MG428 MP216   g1           Unknown function

MG438 MP204   g2/p1        Unknown function
MG442 MP186   g1           Unknown function
MG443 MP185   p1           Unknown function

MG452 MP176   g2           Unknown function
MG468 MP158   g1           Unknown function

Reference
1. A. R. Mushegian and E. V. Koonin, Proc. Natl. Acad. Sci. U.S.A. 93, 1026 (1996).


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