Sequence Analysis of Putative potB, potC, and potD Genes from Serratia Rubidae

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ISSN 1978-3477

*Corresponding author, Phone/Fax: +62-22-2511575;

Email: sony@sith.itb.ac.id

Volume 4, Number 2, August 2010
p 90-95

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Microbiol Indones

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Fig 1 (Left) PCR reaction products. Putative potBCD were sized
approximately 1800 bp; (Right) Line1: Recombinant plasmid uncut. Line 2:
Recombinant plasmid cut by EcoRI. M: marker (1 kb DNAladder).

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RERC

PotB

SD

*
PotC

M

SD

*
M

PotD

FERC

Fig 2 Nucleotide sequence of potB, potC and potD genes from S. rubidae. SD denotes putative Shine- Delgarno sequence. Codon start indicated by “M”
and codon stop indicated by “*”. Grey boxes indicate a pair of primers.

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TM1
PotB_ S.rubidae

: --------------------------------------- ------------------------------------------------------------------------

PotB_ E.coli

:MIVTIVGWLV LFVFLPNLMIIG TSFLTRDDASFVKMVFTLDNYTRLLDPLYFEVLLHSLN

60


TM3

TM2
PotB_ S.rubidae

: ------------------------------ ---------------PQKVRPLLLFLLIVPFWTNSLIRIYGLKIFLSTKGYL 37

PotB_ E.coli

:MALIATLACLVLGYPFAWFL AKLPHKVRPLLL FLLIVPFWTNSLIRIYGLKIFLSTKGYL 120
* :* ******** *******************************

TM4
PotB_ S.rubidae

:NEFLLWLGVIETPIRIMFTP GAVIIGLVYILLPF MVMPLY SSIEKLDK PLLEAAKDLGAS

PotB_ E.coli

:NEFLLWLGVIDTPIRIMFTP SAVIIGLVYILLPF MVMPLY SSIEKLD KPLLEAARDLGAS 180


97

****************************************************************** *********

TM5
PotB_ S.rubidae

:KLQTFVRIIIPLT MPGIIAGCLLVMLPA MGLFYVSDLMGGAKNLLIGNVIKSQFLNIRDW 157

PotB_ E.coli

:KLQTFI RIIIPLTMPGIIAGCLLVMLPA MGLFYVSDLMGGAKNLLIGNVIKVQFLNIRDW 240
****** : *******************************************************************

TM6
PotB_S.rubidae

:PFGSATSITLTVVMGLMLLVY WRASRLLNKKVELE


192

PotB_ E.coli

:PFGAATSITLTI VMGLMLLVY WRASRLLNKKVELE

275

*** : ****************************************

Fig 3 Sequence alignment of putative PotB protein from S. rubidae and PotB from E. coli Acc Number M 64519.1 which were aligned using the Clustal W
algorithm. Grey boxes indicate the six predicted transmembrane segments (TM1 to TM6). Consensus symbols; identical residues: ''*'', conserved substitutions:
'':'', semi-conserved substitutions: ''.''.

TM1
PotC_ S.rubidae

: MIGRLLRGGFMTAIHAYLYIPIIILIV NSFNSSRFGINWQ GFTTKWYGLLMNNDSLLQAA

PotC_ E.coli


: MIGRLLRGGFMTAIYAYLYIPIIILI VNSFNSSRFGINWQ GFTTKWYSLLMNNDSLLQAA

60
60

***************** : ************************************** .****************

TM3

TM2
PotC_ S.rubidae

:QHSLTMAVFFATFAT LIGSLTAVAL YRYRFRGKPFVSGML FVVMMSPDIVMAISLLVLFM 120

PotC_ E.coli

:QHSLTMAVFSATFAT LIGSLTAVAL YRYRFRGKPFVSGML FVVMMSPDIVMAISLLVLFM 120
***********


************************************************ ***************

TM4
PotC_ S.rubidae

:LLGVQLGFWSLLFSHITFCLPFVVVTVYARLKGFDVRMLEAAKDLGASEMTILRKI ILPL 180

PotC_ E.coli

:LLG I QLGFWSLLFSHITFCLPFVVVTVYSRLKGFDVRMLEAAKDLGASEFTILRKIILPL 180
*** : ****************************** * :************************** :*** *********

TM5
PotC_ S.rubidae

:AMPAVAAGWLL SFTLSMDDVVVSSFVTGPSYEILPLKIYSMVKVGVSPEVN ALATILLVL 240

PotC_ E.coli

:AMPAVAAGWVISFTLS MDDVVVSSFVTGPSYEILPLKIYSMVKVGVSPEVNALATILLVL 240

************* : ************************************************************* *

TM6
PotC_ S.rubidae

:SLVLVIASQVI ARDKTK - SQGTQK

PotC_ E.coli

:SLVMVIASQLI ARDKTKGNTGDVK
*** : ***** : *********

.

*

263
264
*


Fig 4 Sequence alignment of putative PotC protein from S. rubidae and PotC from E. coli Acc number M64519.1 using the Clustal W algorithm. Grey
boxes indicate the six predicted transmembrane segments (TM 1 to TM 6). Consensus symbols; identical residues: ''*'', conserved substitutions: '':'', semiconserved substitutions: ''.''.

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PotD_S.rubidae
PotD_E.coli

:MKKM - - - LAAAATGARNWAAAHAGDCKTLYFYN WTEYVPPGLLEQFTKETGIKVIYSTYE 57
:MKKWSRHLLAAGALA LGMSAAHADDNNTLYFY N WTEYVPPGLLEQFTKETGIKVIYSTYE 60
***
* ** . : * . : **** . * .* : ******************************************
Signal sequence
βA
α1
βB


PotD_S.rubidae
PotD_E.coli

:SNETMYAKLKTYKDGAYDLVVP STYF VDKMRKEGMIQKIDKSKLTNFSNLDPEMLNKPED 117
:SNETMYAKLKTYKDGAYDLVVP STYYVDKMRKEGMIQKIDKSKLTNFSNLDPDMLNKPED 120
*********** ********************** : ********************************** : *********
α2
βB
α3

PotD_S.rubidae
PotD_E.coli

:PNNDYSIPYIWGATAIGVNSDA I DPKRVSSWADLWKPEYKNSL ---------------------------------- 160
:PNNDYSIPYIWGATAIGVNGDAVDPKRVTSWADLWKPEYKGSLLLTD DAREVFQMALRKL 180
*********** ************ . ** : *** * : **************** . **
βD
βE
βF
α4

PotD_S.rubidae
PotD_E.coli

: --------------------------------------------------------------------------------------- --------------------------------:GYSGNTTDPKEIEAAYNELKKLMPNVAAFNSDNPANPYMEGEVNLGMIWNGSAFVARQAG 240
α5
βG
α6
βH
α7

PotD_S.rubidae
PotD_E.coli

: -----------------------------------------------------------------------------------------------------------------------: TPIDVVWPKEGGIFWMDSLAIPANAKNKEGALKLINFLLRPDVAKQVAETIG YPTPNLAA
βI
βJ
α8
α9
α10

PotD_S.rubidae
PotD_E.coli

: -----------------------------------------------------------------------------------------------: RKLLSPEVANDKTLYPDAETIKNGEW QNDVGAASSIYEEYYQKLKAGR 348
α11
α12
α13

300

Fig 5 Sequence alignment between putative PotD protein from S. rubidae and PotD from E. coli Acc. number M 64519.1 Based on Sugiyama et al. (1996)
the active residue which binds to spermidine are indicated by grey boxes. Consensus symbols; identical residues: ''*'', conserved substitutions: '':'', semiconserved substitutions: ''.''.

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