Manish Kumar Suthar, Anita Verma, Pawan Kumar Doharey, Shiv Vardan Singh and Jitendra Kumar Saxena*

Single tryptophan of disordered loop from Plasmodium falciparum Purine Nucleoside Phosphorylase: involvement in catalysis and microenvironment.

Division of Biochemistry, Central Drug Research Institute, Chattar Manzil Palace, M. G. road, Lucknow (U.P.) 226001, India.

*Corresponding author: Tel.: 91- 0522-2625932, Fax.: 91-522-2623405, E. mail:

Journal: Applied Biochemistry and Biotechnology

Supplementary material (S-1): Multiple sequence alignment of various nucleoside phosphorylase sequences from different organisms.

1 10 20 30

P.berghei_ ...... MDEEQRHIKLSKKHATPVVLVVG...... DPGRVDKIKVLCD..SY

P.yoelii_ ...... MDEEQRHIKLSKKHATPVVLVVG...... DPGRVDKIKVLCD..SY

P.vivax_ ...... MEGEMQRHIKLTKAQTTPVVLVVG...... DPGRVDKVKVLCD..SY

P.falciparum_ ...... MDNLLRHLKISKEQITPVVLVVG...... DPGRVDKIKVVCD..SY

P.chabaudi_ ...... MSGTQRHIKLSSKNATPVALVVG...... DPGRVDKIKLMCD..SY

E.tenella_ ...... MEGVEVQPHIQLRRGQVQPVVLTMG...... DPKRVDEVAALCD..SA

T.gondii_ ...... MQGMEVQPHIRLRKEDVEPVVIIVG...... DPARTEEVANMCE..KK

T.annulata_ ...... MEYEDCKLLVRMGVPRDRVHKAVIVSE...... NLYHFDLFPKIGD..KY

T.parva_ ...... MEYEDCKLLIRMGVPRDRIHKAAIVSE...... NLYHFYIFTKVGK..KY

B.bovis_ ...... MPRNDDQILNRSNIPKGRDYKVAIICG...... DHKRFEIFKEHST..GY

T.brucei_ ....MAASANGSTKGSETDLPIGKDGTTLHLKCKSDELADRIIFVG...... DPGRVDVISGYFDKDSI

L.infectum_ ....MSGSGCGFLGNVDPDLPLTPDGVTYHVACSSERLADRIILVG...... DPGRVKMVSTYLDTGSI

H.sapiens ...... MENGYTYEDYKNTAEWLLS..HTKHRPQVAIICGSGLGGLTDKLTQAQIFDYGEIPNF

B.malayi_ MSTSMQLYDNGKVINPKSYDDLSEIAKSILKQIQLKEVPKIGIICGSGLGSIADFIEQAEILSYTKIPGF

E.coli_ ...... MATPHINAEMGDFADVVLMPG...... DPLRAKYIAETFL.EDA

40 50 60 70 80

P.berghei_ VDLAYNREYKSVECHYKGQKFLCVSHG...... VGSSGCAICFEELINIG......

P.yoelii_ VDLACNREYKSVECHYKGQKFLCVSHG...... VGSAGCAICFEELINIG......

P.vivax_ VDLAYNREYKSVECTYKGQKFLCVSHG...... VGSAGCAICFEELMNNG......

P.falciparum_ VDLAYNREYKSVECHYKGQKFLCVSHG...... VGSAGCAVCFEELCQNG......

P.chabaudi_ IELAHNREYKSIECTYKGAKFLCVSHG...... VGSAGAAICFEELMNIG......

E.tenella_ EPLTFNREFKSANVVKDGQKFTVISHG...... IGCCSSMICFEELIKLG......

T.gondii_ QELAYNREYRSFRVVYDSQPITVISHG...... IGCPGTSIAIEELAYLG......

T.annulata_ HEFNEFLCYKIAEVEVDGEMILLVYHG...... VSGTAASPILRELLEMG......

T.parva_ CEYREFLCYKIAEVEVDGEMILLVYHG...... VSGNAASPIMKELLEMG......

B.bovis_ RDFGTYLCWKGAELFYDGEYILLASHG...... VGSHPTYVVVRELIELG......

T.brucei_ RASRDHREIRFATGTYKGTPVTVISTG...... MGVDNIEIVLNEIHALKEYDMERGQWRHRK.GDAD

L.infectum_ VYEASHREIKVVTGAYHGVPVTVLSTG...... MGTDNIEIVMNEVHILKEYDTQKRRWRARVGDDTP

H.sapiens PRSTVPGHAGRLVFGFLNGRACVMMQGRFHMYEG.YPLWKVTFPVRVFHLLG......

B.malayi_ PISHVIGHKSNLVFGYINEKYVICMQGRFHPYEYGMDLALCAMPVRILHLLG......

E.coli_ REVNNVRGMLGFTGTYKGRKISVMGHG...... MGIPSCSIYTKELITDFG......

90 100 110 120 130 140

P.berghei_ ...... AKVIIRAGSCGSLQPESIKRGDLCVCNAAVREDRVTHMMIHSDFPAVADYEVYSTLLKC

P.yoelii_ ...... AKVIIRAGSCGSLQPESIKRGDLCVCNAAVREDRVTHMMIHSDFPAVADYEVYSTLLKC

P.vivax_ ...... AKVIIRAGSCGSLQPTQMKRGDICICNAAVREDRVSHLMIYSDFPAVADYEVYATLNQV

P.falciparum_ ...... AKVIIRAGSCGSLQPDLIKRGDICICNAAVREDRVSHLLIHGDFPAVGDFDVYDTLNKC

P.chabaudi_ ...... VKAIIRAGSCGSLQPGYIKRGDLCICNAAVREDRVTHLMIYPDYPAVGDFEVYDVLLKC

E.tenella_ ...... AKCIIRAGTCGSMKPDQVKRGDICVPFAAARDNDVCDLYIPPRMPAVATPRVFQSLLES

T.gondii_ ...... AKVIIRAGTCGSLKPKTLKQGDVCVTYAAVNETGLISNILPEGFPCVATPHVYQALMDA

T.annulata_ ...... VKIVIRCGKCGSYNPCLVNNGDIYICYAAIRDDTVSLAEIDAKYPAVADYDVIDCLVDT

T.parva_ ...... VKIVIRCGKCGTYKPSTVKSGDLSITYASVRDDTSSMAEIDVKYPAVADFDVIDCLVDT

B.bovis_ ...... VKCIIRSGTCGTYRPDIRSTGDICICYGAIRNDSSCLGDADLAYPAVAHPNVFEALRDA

T.brucei_ APSAGPFFDPSTMKIIRLGTCGSPAESVPPLALAVTRHAIGMDNTSLYYSAGTRETSKDQQEIRRIVREQ

L.infectum_ ADPLETPFDPSRVKLIRVGTCGTPNDEVQIGCLAITRYAVGMDNTCQYYDPPAVNHTADVKEVLAKVQAT

H.sapiens ...... VDTLVVTNAAGGLNPK.FEVGDIMLIRDHINLPGFSGQNPLRGPNDERFGDRFPAMSDA

B.malayi_ ...... VETLIVSNAAGGLNSN.FKVGDLMIIKDHIFFPGLAGFSPFVGLHDQRFGERFVSLHEA

E.coli_ ...... VKKIIRVGSCGAVLPHVKLRDVVIGMGACTDSKVNRIRFKDHDFAAIADFDMVRNAVDA

150 160 170

P.berghei_ A...... EELNVKVHNGISLSSDLYYPHSIIPTRLLDYSK.AN

P.yoelii_ A...... EELNVKVHNGISLSSDLYYPHSIIPTRLLDYSK.AN

P.vivax_ A...... EELKVPVFNGISLSSDMYYPHKIIPTRLEDYSK.AN

P.falciparum_ A...... QELNVPVFNGISVSSDMYYPNKIIPSRLEDYSK.AN

P.chabaudi_ A...... EELEVKAHTGISLSSDLYYPKDILPSRLEDYSK.AN

E.tenella_ G...... KQLGIPLRQGIALTNGLFYGHGKEHIENLTNWS.KF

T.gondii_ A...... KELGIEAASGIGVTQDYFYQNG.ILPSKLEMYS.KC

T.annulata_ A...... EQLGFTTKMGINYSTDLFYRRVCIDDPRDKYTLNNI

T.parva_ A...... EELGIDASLGINYSSDLFYRRTCKDDHRDIYPTYNI

B.bovis_ S...... EALGIPTHLGMSYSSDLFYRRDITNDPRDTYAKYKE

T.brucei_ TGLRAIDIYTSMAHPNITKSICAACDAHNAATGSEADKQQYVIGTTATASGFYGCQGRRVGRFMKHLTVP

L.infectum_ S.LGKVQVYATKAAPAITQGLVDACTALNRKAG.VSEQQPYYVGTTCSGSGFYGCQGRSVGRFRGHLTVP

H.sapiens Y...... DRTMRQRALSTWKQMGEQRELQEGTYVMVAGPSF

B.malayi_ Y...... DPKLRKLAIDVARRQ..KIRIHEGVYAMNGGPQF

E.coli_ A...... KALGIDARVGNLFSADLFYSPDGEMFDVMEKYG...

180 190 200 210 220 230

P.berghei_ VAVVEMELSTLMVMGTLKKVKTGGIFIVDGCPLKWDEGDFDN..VLAADRLE...... NMIKISLEA

P.yoelii_ VAVVEMELSTLMVMGTLKKVKTGGIFIVDGCPLKWDEGDFDN..VLAADRLE...... NMIKISLEA

P.vivax_ VAVVEMEVATLMVMGTLRKVKTGGIFIVDGCPLKWDEGDFDN..NLVPERLE...... NMIKISLET

P.falciparum_ AAVVEMELATLMVIGTLRKVKTGGILIVDGCPFKWDEGDFDN..NLVPHQLE...... NMIKIALGA

P.chabaudi_ VAVVEMELATLMVMGGLSGVKTGGIFIVDGCPLKWKEGDFDE..VLDPKKLE...... EMIRVSMLA

E.tenella_ TDIIDCEFQSLFLVGIGRGIETGGIATVDGSPLQWDQANYDPSGNTVAEGKK...... KMLTVAIHT

T.gondii_ CDVIDMEMSGVLGLCQARGIATCGILAVDGSPLQWDEGDYDATGVKATTGKE...... NMIKITLKA

T.annulata_ ADTEDNETSTVFVLSSLYGAKAGAVLTVDGSPLFWGNGGYAFGEESVEKGIE...... KTMVIGLKA

T.parva_ GDTEESETATIFVLCSLYGAKAGAVMTIDGTPLYWSSGGYIVGEKIVDVGIE...... KMTLLASKA

B.bovis_ VVIEDTDNSAVLLLCNLYGVWGGALCTIDGCPLEWDKGNYQPHTEKMQHGKT...... NMVKLAMHA

T.brucei_ NMVEELGSLKFNLSNGVEVVTNIEMETSAICYLSDMLGYQAGAACVVVSKRVGEKKMFLG.DQLDAAMKR

L.infectum_ HLTEELGDLRFNVSEGEQRVANIEMENSALCYLSNLLGYQAGTVCVVIARRSRTNRTFATPEQLAKGLSR

H.sapiens ETVAECRVLQKLGADAVGMSTVPEVIVARHCGLRVFGFSLITNKVIMDYESLEKANHEEVLAAGKQAAQK

B.malayi_ ESPAELRMLKMLGTDAIGMSTCHEVVVACQMGMRVFGCSLITNIANLDHENAVMVTHEEVLKTGEEAQER

E.coli_ ILGVEMEAAGIYGVAAEFGAKALTICTVSDHIRTHEQTTAAERQTTFN...... DMIKIALES

_

240

P.berghei_ CAKLSKKY......

P.yoelii_ CARLSEKY......

P.vivax_ CARLAKKY......

P.falciparum_ CAKLATKYA......

P.chabaudi_ CVTLTNRYTPN......

E.tenella_ CTKLTREYSGN......

T.gondii_ CANLRRQY......

T.annulata_ ASVLVKRFCHN......

T.parva_ ASKLSNKYRNNQM......

B.bovis_ AANLSRQLKA......

T.brucei_ CIKIILEALVSA......

L.infectum_ AITIALETLIKE......

H.sapiens LEQFVSILMASIPLPDKAS

B.malayi_ TCSFVSEIVKNL......

E.coli_ VLLGDKE......