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H`nsmnr Knjkuay
T`.B. , C.\.Ue., H.\.Ue. & N.@.
UFKCN LNERIX
&
ANCHBN T@NK E!EA
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R`g XJNpia `iaigjzycg
• Gxncpags il eilnetirs ― eiccij prist`gtfe kriups (`ngc) ir cgtna fijs
(cnkjgsfuc)
― Bfssiefnhag pritgfj suhujfts ― sfkcn (υ) lnetir
• Bg!jftfij il `iaigjzycg ― "icpagtg# $ir%fjk &grsfij
il nj gjzycg
― el npigjzycg ' cfssfjkspgef!e eilnetirs t`ntnaai$ ft ti pgrlirc fts ih
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R`g XJNpia `iaigjzycg
• Naa cuatf'suhujft XJN piaycgrnsgs `n&g eirgsuhujfts
• *netgrfna XJNpia `n&g n++ftfijna υ suhujft• ,ns lujetfij fj hfj+fjk ti pricitgr
―
-j hnetgrfn# XJNpia hfj+s n pricitgr vfn υ ― -j gu%nryitgs# XJNpia hfj+s vfn R. eicpagx
• *netgrfna XJNpia fs rgkuantg+ purgay hy υ(fjftfntfij p`nsg)# hut gu%nryitfe XJNpia fs
rgkuantg+ hit` hy t`g R.s nj+ hy &nrfius kgjgrgkuantiry pritgfjs• Nat`iuk` pricitgrs nrg sfcfanr# t`g hnetgrfna
pricitgr tgj+s ti hg `fk`ay eijsgr&g+
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XJNT hfjbs spgeflfe pricitgr
sgqugjegs
Ufkcn lnetirs rgeikjfzg eijsgjsus
->4 njb -57 sgqugjegs
8/17/2019 SIGMA FACTOR & LAMBDA PHAGE CYCLE
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/gjgrna 4ripgrtfgs il υlnetir
• XJN piaycgrnsg `iaigjzycg hfj+s +frgetay ti BJN vfn fts υsuhujft
• 4ricitgr eijsgjsus sg>ugjeg (hgai$) fs `fk`ay eijsgr&g+ fjhnetgrfn
8g>ugjeg nafkjcgjt
il G. eiaf pricitgrsrg&gna nprg+icfjnjeg ilegrtnfj rgsf+ugs ntpisftfijs '5 nj+ ―27 rgantf&g ti stnrt
pifjt iltrnjserfptfij (
8/17/2019 SIGMA FACTOR & LAMBDA PHAGE CYCLE
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XJN piaycgrnsg pricitgrs
!N"N NNN
#g$fntfij lric eijsgjsus ->4 % -57 sgqugjeg agnbs ti
&gn'gr kgjg g(prgssfij
8/17/2019 SIGMA FACTOR & LAMBDA PHAGE CYCLE
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)netgrfna sfkcn lnetirs
Ufkcn lnetirs nrg *trnjserfptfij lnetirs+
#fllgrgjt sfkcn lnetirs hfjb XJNT njb rgeikjfzg
spgeflfe ->4 %-57 sgqugjegs
,gap cgat #JN ti g(pisg trnjserfptfijna stnrt sftg ist hnetgrfn .n$g cn/ir njb natgrjntg sfkcn lnetirs
Tricitg hrinb e.njkgs fj kgjg g(prgssfij
G. eiaf sfkcn lnetirs
H. suhtfafs > sfkcn lnetirs !gjgrnaay% hnetgrfn t.nt af$g fj cirg $nrfgb
gj$frijcgjts .n$g cirg sfkcn lnetirs
8/17/2019 SIGMA FACTOR & LAMBDA PHAGE CYCLE
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Ufkcn lnetirs
G. eiaf enj e.iisg hgt&ggj sfkcn lnetirs njb nhiut 574
trnjserfptfij lnetirs ti lfjg tujg fts trnjserfptfijna iutput
Nj Xgv Cferi \ia. 7;? 22>-2
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8.nt rgkuantgs sfkcn lnetirs
Juchgr il eipfgs pgr egaa 24 cirg t.nj
natgrjntg
Njtf-sfkcn lnetirs hfjb
8/17/2019 SIGMA FACTOR & LAMBDA PHAGE CYCLE
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)netgrfna XJNT juchgrs
0j aik-p.nsg G. eiaf6
?=444 kgjgs
?1444 eirg XJN piaycgrnsg ciageuags
?1544 nrg netf$g nt n tfcg ?>
8/17/2019 SIGMA FACTOR & LAMBDA PHAGE CYCLE
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R`g natgrjntf&g υ6 lnetir
• ;ist natgrjntf&g sfkcns nrg rgantg+ fjsg>ugjeg nj+ strueturg ti υ 07
• ?j+ +fstfjet typg il υ enaag+ t`g υ6 lncfay•
Bfllgrgjegs hgt$ggj t`g υ lncfafgs ― υ 6 lncfay s`nrgs ji sg>ugjeg `iciaiky $ft`t`g υ 07 lncfay
― =`grgns υ 07 `iaigjzycgs enrry iut t`fspriegss il ipgj eicpagx lircntfij ij t`gfri$j# υ 6 `iaigjyzcgs rg>ufrg hit` njgj`njegr nj+ NR4 ti pgrlirc t`fs priegss
8/17/2019 SIGMA FACTOR & LAMBDA PHAGE CYCLE
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1ysfs ir 1ysikgjy
• Ays"s3 -jlgetfij hy p`nkg pri+uegscnjy prikgjy nj+ hrgn%s ipgj (aysgs)t`g `ist hnetgrfuc
• Ays#k$jy3 Nltgr fjlgetfij# t`g p`nkgBJN fjtgkrntgs fjti t`g `ist kgjicgnj+ rgsf+gs t`grg pnssf&gay ― Ji prikgjy
― Ji aysfs il t`g `ist ― "nj suhsg>ugjtay aysg (aysikgjy)
• *netgrfip`nkg anch+n enj +i $"%`$r.
8/17/2019 SIGMA FACTOR & LAMBDA PHAGE CYCLE
13/23 Ays"s Ays#k$jy
\Fj'ue%"#j
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• R`g p`nkg kgjicg fjtgkrntg+ fjti t`g`ist hnetgrfna kgjicg fs n (r#(`nk$.
• *netgrfuc enrryfjk t`g prip`nkg fs n
ays#k$j• 1ysikgjs nrg "))uj$ ti lurt`gr fjlgetfij
hy sfcfanr p`nkg hgenusg t`g p`nkglujetfijs nrg r$(r$ss$' fj trnjs
• Fj'ue%"#j il t`g aysikgj agn+s ti$*e"s"#j il t`g prip`nkg# r$(a"en%"#j ilt`g p`nkg BJN# nj+ ays"s il t`g `ist
hnetgrfuc
Gagcgjts il aysikgjy
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/gjgs nrg eaustgrg+ hy lujetfij fjt`g anch+n kgjicg
Xgeichfjntfij Eijtria rgkfijXgpafentfij Aysfs\frus ̀gnb&tnfa
irfkfj
iX
Tfjt iA TA TXC TX TXG TX‐tX5
tA> tX> tX8 t
8/17/2019 SIGMA FACTOR & LAMBDA PHAGE CYCLE
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-ccg+fntg gnraytrnjserfptfij
Rrnjserfptfij hyG. eiaf XJN piaycgrnsg fjftfntgs nt strijkpricitgrs TX , TX‖, njb TA , njb tgrcfjntgs nt t‖s.
tX> tX8 t
8/17/2019 SIGMA FACTOR & LAMBDA PHAGE CYCLE
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Njtftgrcfjntfij hy J pritgfj agn+s tignray kgjg gxprgssfij
Tfjt TA TXC TX TXG TX‐tX5
tA> tX> tX8 t
8/17/2019 SIGMA FACTOR & LAMBDA PHAGE CYCLE
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1ytfe ensen+g3 "ri turjs i: eF# 9pritgfj netfij agn+s ti antg kgjg
gxprgssfij
iX
Tfjt iA TA TXC TX TXG TX‐tX5
tA> tX> tX8 t
8/17/2019 SIGMA FACTOR & LAMBDA PHAGE CYCLE
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1ntg stnkg il aytfe ensen+g
@fk̀ eijegjtrntfijs il Eri turj iffl TX njb TA .
Nhujbnjt gxprgssfij lric TX‖.
iX
Tfjt iA TA TXC TX TXG TX‐tX5
tA> tX> tX8 t
8/17/2019 SIGMA FACTOR & LAMBDA PHAGE CYCLE
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+
1ysikgjy3 "-- nj+ "--- stfcuantggxprgssfij il eF ti cn%g rgprgssir
iX
Tfjt iA TA TXC TX TXG TX‐tX5
tA> tX> tX8 t
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1ysikgjy3 Xgprgssir turjs i:trnjserfptfij
iX
Tfjt iA TA TXC TX TXG TX‐tX5
tA> tX> tX8 t & i
X8
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Xgprgssir strueturg
ipgrntir
J-tgrcfjus? BJN hfjbfjk= @gafx-Rurj-@gafx citfl
E-tgrcfjna bicnfj? pritgfj-pritgfj fjtgrnetfij=bfcgrfzntfij njb eiipgrntfvfty
Eijjgetir
ipgrntir ipgrntir
i!i"
ν rgprgssir fs n bfcgr= cijicgr ̀ns 85< ncfji nefbs.
νrgprgssir enj hfjb eiipgrntfvgayti ipgrntir suh-sftgs.
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R`njm y#u