MKT1L_TRYB2
ID MKT1L_TRYB2 Reviewed; 1220 AA.
AC Q38C92;
DT 10-FEB-2021, integrated into UniProtKB/Swiss-Prot.
DT 22-NOV-2005, sequence version 1.
DT 25-MAY-2022, entry version 64.
DE RecName: Full=Post-transcriptional regulator MKT1L {ECO:0000305};
DE AltName: Full=Inactive endonuclease MKT1L {ECO:0000305};
GN Name=MKT1L {ECO:0000303|PubMed:32532821};
GN ORFNames=Tb10.70.6480 {ECO:0000312|EMBL:EAN77578.1};
OS Trypanosoma brucei brucei (strain 927/4 GUTat10.1).
OC Eukaryota; Discoba; Euglenozoa; Kinetoplastea; Metakinetoplastina;
OC Trypanosomatida; Trypanosomatidae; Trypanosoma.
OX NCBI_TaxID=185431 {ECO:0000312|Proteomes:UP000008524};
RN [1] {ECO:0000312|Proteomes:UP000008524}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=927/4 GUTat10.1 {ECO:0000312|Proteomes:UP000008524};
RX PubMed=16020726; DOI=10.1126/science.1112642;
RA Berriman M., Ghedin E., Hertz-Fowler C., Blandin G., Renauld H.,
RA Bartholomeu D.C., Lennard N.J., Caler E., Hamlin N.E., Haas B., Bohme U.,
RA Hannick L., Aslett M.A., Shallom J., Marcello L., Hou L., Wickstead B.,
RA Alsmark U.C.M., Arrowsmith C., Atkin R.J., Barron A.J., Bringaud F.,
RA Brooks K., Carrington M., Cherevach I., Chillingworth T.J., Churcher C.,
RA Clark L.N., Corton C.H., Cronin A., Davies R.M., Doggett J., Djikeng A.,
RA Feldblyum T., Field M.C., Fraser A., Goodhead I., Hance Z., Harper D.,
RA Harris B.R., Hauser H., Hostetler J., Ivens A., Jagels K., Johnson D.,
RA Johnson J., Jones K., Kerhornou A.X., Koo H., Larke N., Landfear S.,
RA Larkin C., Leech V., Line A., Lord A., Macleod A., Mooney P.J., Moule S.,
RA Martin D.M., Morgan G.W., Mungall K., Norbertczak H., Ormond D., Pai G.,
RA Peacock C.S., Peterson J., Quail M.A., Rabbinowitsch E., Rajandream M.A.,
RA Reitter C., Salzberg S.L., Sanders M., Schobel S., Sharp S., Simmonds M.,
RA Simpson A.J., Tallon L., Turner C.M., Tait A., Tivey A.R., Van Aken S.,
RA Walker D., Wanless D., Wang S., White B., White O., Whitehead S.,
RA Woodward J., Wortman J., Adams M.D., Embley T.M., Gull K., Ullu E.,
RA Barry J.D., Fairlamb A.H., Opperdoes F., Barrell B.G., Donelson J.E.,
RA Hall N., Fraser C.M., Melville S.E., El-Sayed N.M.A.;
RT "The genome of the African trypanosome Trypanosoma brucei.";
RL Science 309:416-422(2005).
RN [2] {ECO:0000305}
RP FUNCTION, IDENTIFICATION IN A COMPLEX WITH PBP1; LSM12 AND XAC1,
RP SUBCELLULAR LOCATION, DEVELOPMENTAL STAGE, DISRUPTION PHENOTYPE, AND
RP IDENTIFICATION BY MASS SPECTROMETRY.
RC STRAIN=427 {ECO:0000303|PubMed:32532821};
RX PubMed=32532821; DOI=10.1074/jbc.ra120.013306;
RA Melo do Nascimento L., Terrao M., Marucha K.K., Liu B., Egler F.,
RA Clayton C.;
RT "The RNA-associated proteins MKT1 and MKT1L form alternative PBP1-
RT containing complexes in Trypanosoma brucei.";
RL J. Biol. Chem. 295:10940-10955(2020).
CC -!- FUNCTION: Involved in post-transcriptional regulation of gene
CC expression. {ECO:0000269|PubMed:32532821}.
CC -!- SUBUNIT: Forms a complex composed of at least MKT1L, PBP1, XAC1 and
CC LSM12. {ECO:0000269|PubMed:32532821}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000269|PubMed:32532821}.
CC -!- DEVELOPMENTAL STAGE: Expressed in the procyclic and bloodstream forms
CC (at protein level). {ECO:0000269|PubMed:32532821}.
CC -!- DISRUPTION PHENOTYPE: RNAi-mediated knockdown in both the procyclic and
CC the bloodstream form is lethal. {ECO:0000269|PubMed:32532821}.
CC -!- SIMILARITY: Belongs to the XPG/RAD2 endonuclease family. {ECO:0000305}.
CC -!- CAUTION: Although it belongs to the XPG/RAD2 endonuclease family, only
CC one of the seven Asp residues involved in Mg(2+) binding is conserved
CC suggesting that it has no nuclease activity. {ECO:0000305}.
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DR EMBL; CM000208; EAN77578.1; -; Genomic_DNA.
DR RefSeq; XP_822406.1; XM_817313.1.
DR AlphaFoldDB; Q38C92; -.
DR PaxDb; Q38C92; -.
DR GeneID; 3662740; -.
DR KEGG; tbr:Tb10.70.6480; -.
DR VEuPathDB; TriTrypDB:Tb927.10.1490; -.
DR eggNOG; ENOG502R9RQ; Eukaryota.
DR InParanoid; Q38C92; -.
DR OMA; PGMNSNW; -.
DR Proteomes; UP000008524; Chromosome 10.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0035061; C:interchromatin granule; IDA:GeneDB.
DR GO; GO:0017108; F:5'-flap endonuclease activity; IBA:GO_Central.
DR GO; GO:0006417; P:regulation of translation; IEA:UniProtKB-KW.
DR InterPro; IPR022039; MKT1_C.
DR InterPro; IPR022040; MKT1_N.
DR InterPro; IPR029060; PIN-like_dom_sf.
DR InterPro; IPR006084; XPG/Rad2.
DR PANTHER; PTHR11081; PTHR11081; 2.
DR Pfam; PF12246; MKT1_C; 1.
DR Pfam; PF12247; MKT1_N; 1.
DR SUPFAM; SSF88723; SSF88723; 1.
PE 1: Evidence at protein level;
KW Cytoplasm; Reference proteome; Translation regulation.
FT CHAIN 1..1220
FT /note="Post-transcriptional regulator MKT1L"
FT /id="PRO_0000451926"
FT REGION 1..107
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 10..26
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 35..71
FT /note="Basic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 86..107
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 1220 AA; 134815 MW; 027890055BB885D8 CRC64;
MRKAGANRNN ERQGRNLGQQ GPQMSPPGPS MMYPHHHQHQ HHHQHQHQHQ HQHQHPHQHP
HQHHHHHPHH NGVYGNAYDN IRQPQMPPHS FGQGVSGSPW NSPPQQTPMY NQGYNQMSPG
TGGGYGDMGG MYRDVHGGQY PSSPSHMGGG ANIPYGRNPA MHNGLPAGAP LPGGYGALPH
QGAHTPMGFG RGGQPLMEHM QPSGMYGAPM MRHDGYPDTR VSPPAQVGYG AGAPVGPPPP
PPMPAGPPYG GVLPGAGVGP GGPMNASRPP AGIGGGGGGG GNAGYLEMRA RGMGPQMPAS
NASRPPRIGT PDPGMMPPNR MNQSPMMGQG LPPQVGNFMP LPGVSPSPHA MIPTTPSMGD
TFPGDDANMS GSTEALYDFL HDRGLVSVDN ISKFFPEGYG KDDPALKVAV DGNFCLTSLR
DELRKRDSLW FLHSTLPEEL LMLVQQHVEW MRNMKLEPIW VFNGLSVSGD VETFLTTEAE
LRARDAVWSK LEDGEIPDEV EIQEAFDQPL GEDVQMAVAR YLKEELGVMA VTAPFLNWAQ
MVAFHKEGIA DLLMGPPEML LLPYDEMKVI VQIDVSNSSV NYLDRDRVLR ALFPNHVTET
NTRVAGDRLM DLGLITATHA ALSSARVTLN LSMQEVYEEL STPTPKFRSI KDFINAHACS
QETGKKAGLS IKHSKGRGYL RYSAVFSTKS RDTPLVYLVR VLDPDLTNAD MPTNLAGVLG
HLVPLSLFYM QFSGLLSVRI MTAITQSYLR DECPVSDTKD YHTTLGLLMT MRSQVIGQIL
KRIAHPPPIK RTECLSWVRW FQPILAPMDR PRDLIDLDEW EISDSDQLKK LDEDCLADYS
IASVLSVTAD ASRPAVEESN RPAGRVPIRY NSKRETFLAI LLKSFDFLGY FSHSTAPNDA
VDGMEMECCG MDGHDRGGSV PAAYHEKDLS SMKRSEASDI NFMADEGLKD YPSVYFPIYL
RATIKANPLD VQASFVLLTE LVRVRIINSN PCRYINPANQ QVEISMDDQD TNSDSRVLLA
SRIACLVKLP YRRASENLPF VWAPVYSRHL CAFTVMVRAM CRCLRELVEV ITSTVFLSGN
SSCSLQDFAE FASILPFGDV PSTIGGLLLH YVLVFPSDYQ ANLTSREERI EYLQGKFRDI
PDLADHLHLV MSFTLQALYL INAYMLNDKE TIVAKDQLTG TIVEDTIEMM WQKWRDHIDD
NPPGDIHNLY PPRHQEPIPH