Summary for PML-I (NES ID: 327)

Full Name
Promyelocytic leukemia protein isoform I     UniProt    
Alternative Names
Promyelocytic leukemia protein (MYL), RING finger protein 71 (RNF71), Tripartite motif-containing protein 19 (TRIM19), PP8675   
Organism
Homo sapiens (Human)    
Experimental Evidence for CRM1-mediated Export
LMB Sensitive Ref.1Involvement of PML-I in reformation of PML nuclear bodies in acute promyelocytic leukemia cells by leptomycin B, Wang et al., Toxicol Appl Pharmacol, 2019
Mutations That Affect Nuclear Export
*highlighted yellow in the full sequence
704ISGFLAALPL713 by Deletion Ref.1Involvement of PML-I in reformation of PML nuclear bodies in acute promyelocytic leukemia cells by leptomycin B, Wang et al., Toxicol Appl Pharmacol, 2019
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
Undetermined
Secondary Structure of Export Signal
Unknown
Other Residues Important for Export
Unknown
Sequence
Show FASTA Format Show Domain Info by CDD Show Secondary Structure by PSIPRED Show Conservation Score by AL2CO 
        10         20         30         40         50         60 
MEPAPARSPR PQQDPARPQE PTMPPPETPS EGRQPSPSPS PTERAPASEE EFQFLRCQQC 

        70         80         90        100        110        120 
QAEAKCPKLL PCLHTLCSGC LEASGMQCPI CQAPWPLGAD TPALDNVFFE SLQRRLSVYR 

       130        140        150        160        170        180 
QIVDAQAVCT RCKESADFWC FECEQLLCAK CFEAHQWFLK HEARPLAELR NQSVREFLDG 

       190        200        210        220        230        240 
TRKTNNIFCS NPNHRTPTLT SIYCRGCSKP LCCSCALLDS SHSELKCDIS AEIQQRQEEL 

       250        260        270        280        290        300 
DAMTQALQEQ DSAFGAVHAQ MHAAVGQLGR ARAETEELIR ERVRQVVAHV RAQERELLEA 

       310        320        330        340        350        360 
VDARYQRDYE EMASRLGRLD AVLQRIRTGS ALVQRMKCYA SDQEVLDMHG FLRQALCRLR 

       370        380        390        400        410        420 
QEEPQSLQAA VRTDGFDEFK VRLQDLSSCI TQGKDAAVSK KASPEAASTP RDPIDVDLPE 

       430        440        450        460        470        480 
EAERVKAQVQ ALGLAEAQPM AVVQSVPGAH PVPVYAFSIK GPSYGEDVSN TTTAQKRKCS 

       490        500        510        520        530        540 
QTQCPRKVIK MESEEGKEAR LARSSPEQPR PSTSKAVSPP HLDGPPSPRS PVIGSEVFLP 

       550        560        570        580        590        600 
NSNHVASGAG EAEERVVVIS SSEDSDAENS SSRELDDSSS ESSDLQLEGP STLRVLDENL 

       610        620        630        640        650        660 
ADPQAEDRPL VFFDLKIDNE TQKISQLAAV NRESKFRVVI QPEAFFSIYS KAVSLEVGLQ 

       670        680        690        700        710        720 
HFLSFLSSMR RPILACYKLW GPGLPNFFRA LEDINRLWEF QEAISGFLAA LPLIRERVPG 

       730        740        750        760        770        780 
ASSFKLKNLA QTYLARNMSE RSAMAAVLAM RDLCRLLEVS PGPQLAQHVY PFSSLQCFAS 

       790        800        810        820        830        840 
LQPLVQAAVL PRAEARLLAL HNVSFMELLS AHRRDRQGGL KKYSRYLSLQ TTTLPPAQPA 

       850        860        870        880                       
FNLQALGTYF EGLLEGPALA RAEGVSTPLA GRGLAERASQ QS
3D Structures in PDB
1BOR (NMR)
2MVW (NMR)
5YUF (X-Ray,1.60 Å resolution)
6IMQ (X-Ray,2.06 Å resolution)
6UYR (X-Ray,1.30 Å resolution)
Comments
PML is a tumor suppressor with seven human isoforms (I-VII), and six of the isoforms (I-VI) contain NLSs. While primarily found in the nucleus, PML-I isoform also contains a putative NES in residues 704-713, which matches traditional NES consensus. The fusion of PML protein with retinoic acid receptor alpha (RARα), which is associated with acute promyelocytic leukemia (APL), results in the disruption in the proper formation of PML nuclear bodies (PML-NBs), which regulate physiological functions in normal cells. Wang et al. showed that PML-I is essential for formation of PML-NBs and LMB treatment or NES deletion can cause nuclear accumulation of PML-I and rescue formation of PML-NBs when co-transfected with PML-RARα. It should be noted that no further testing on the export activity of the putative NES have been performed.
References
[1]. "Involvement of PML-I in reformation of PML nuclear bodies in acute promyelocytic leukemia cells by leptomycin B"
Wang C, Su L, Shao YM, Chen WZ, Bu N, Hao R, Ma LY, Hussain L, Lu XY, Wang QQ, Naranmandura H. (2019) Toxicol Appl Pharmacol, 384:114775 PubMed
User Input
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