NESdb

Summary for BDV X (NES ID: 293)

Full Name

Borna disease virus X protein UniProt

Alternative Names

None

Organism

Borna disease virus (BDV)

Experimental Evidence for CRM1-mediated Export

LMB Sensitive, Binds CRM1 ^{Ref.1Manipulation of the N-terminal sequence of the Borna disease virus X protein improves its mitochondrial targeting and neuroprotective potential, Ferr et al., FASEB J, 2016}

Mutations That Affect Nuclear Export

Unknown

Mutations That Affect CRM1 Binding

Unknown

Functional Export Signals

*shown as underlined residues in the full sequence

⁵LRLTLLELVRRL¹⁶ ^{Ref.1Manipulation of the N-terminal sequence of the Borna disease virus X protein improves its mitochondrial targeting and neuroprotective potential, Ferr et al., FASEB J, 2016}

Secondary Structure of Export Signal

Alpha-helix in positions 6-16

Other Residues Important for Export

Unknown

Sequence

Show FASTA Format

>sp|P0DOF0|X_BDVV X protein OS=Borna disease virus (strain V) OX=928296 GN=P/X PE=1 SV=1
MSSDLRLTLLELVRRLNGNATIESGRLPGGRRRSPDTTTGTTGVTKTTEGPKECIDPTSR
PAPEGPQEEPLHDLRPRPANRKGAAVE

Show Domain Info by CDD

Show Secondary Structure by PSIPRED

    	# PSIPRED HFORMAT (PSIPRED V3.2)

Conf: 973136379999998618620005887999989999995201332012699888899999
Pred: CCCHHHHHHHHHHHHHHCCCCCCCCCCCCCCCCCCCCCCCEEEEECCCCCCCCCCCCCCC
  AA: MSSDLRLTLLELVRRLNGNATIESGRLPGGRRRSPDTTTGTTGVTKTTEGPKECIDPTSR
              10        20        30        40        50        60


Conf: 999999988788799998886676469
Pred: CCCCCCCCCCCCCCCCCCCCCCCCCCC
  AA: PAPEGPQEEPLHDLRPRPANRKGAAVE
              70        80

Show Conservation Score by AL2CO

1     M       1.379
2     S       0.192
3     S       0.233
4     D       0.332
5     L       0.332
6     R      -0.922
7     L       1.379
8     T       1.379
9     L       1.379
10    L       1.379
11    E       1.379
12    L       1.379
13    V       0.315
14    R       1.379
15    R       1.379
16    L       0.401
17    N       1.379
18    G       1.379
19    N      -0.466
20    A      -0.951
21    T      -1.326
22    I      -1.623
23    E      -0.337
24    S      -0.264
25    G       0.223
26    R      -0.880
27    L      -1.015
28    P      -1.921
29    G       0.195
30    G       0.243
31    R       0.260
32    R       0.189
33    R      -0.284
34    S       0.188
35    P       0.213
36    D       1.379
37    T       0.213
38    T       1.379
39    T       0.213
40    G      -1.685
41    T      -1.663
42    T      -0.872
43    G      -0.451
44    V       0.182
45    T      -0.508
46    K      -1.243
47    T      -0.973
48    T      -0.436
49    E      -0.963
50    G      -0.431
51    P      -0.500
52    K      -1.638
53    E      -0.493
54    C       0.257
55    I      -0.962
56    D      -0.409
57    P      -1.356
58    T      -0.925
59    S      -0.935
60    R       0.182
61    P      -1.009
62    A      -0.950
63    P      -1.244
64    E      -0.953
65    G      -1.363
66    P      -1.657
67    Q      -0.927
68    E       0.306
69    E       1.379
70    P       0.234
71    L      -0.960
72    H       1.379
73    D       0.408
74    L       1.379
75    R       1.379
76    P       0.262
77    R       1.379
78    P      -0.921
79    A       0.279
80    N       0.279
81    R       1.379
82    K       1.379
83    G       1.379
84    A       0.230
85    A      -0.465
86    V       0.184
87    E       1.379
* gap fraction no less than  0.50; conservation set to M-S
  M: mean;  S: standard deviation

al2co - The parameters are:

Input alignment file - 293.paln
Output conservation - STDOUT
Weighting scheme - independent-count based
Conservation calculation method - entropy-based
Window size - 1
Conservation normalized to zero mean and unity variance
Gap fraction to suppress calculation -  0.50

        10         20         30         40         50         60 
MSSDLRLTLL ELVRRLNGNA TIESGRLPGG RRRSPDTTTG TTGVTKTTEG PKECIDPTSR 
        70         80                                             PAPEGPQEEP LHDLRPRPAN RKGAAVE

3D Structures in PDB

Not Available

Comments

Borna disease virus X protein is a small non-structural protein with diverse functions in viral replication. It is found in the predominantly in the nucleus and mitochondria. The N-terminal 20 residues have been found to contain a NLS as well as having mitochondrial targeting function. Ferré et al. found that CRM1 can be detected in co-IP with X protein, and a putative NES can be found in the same N-terminal region (class 2 and 1a-R can be found between 5-16). Peptide consisting of 5-16 fused to GFP has LMB-sensitive nuclear export activity, and a milder affect is seen when 1-20 is used. The same peptides also display mitochondrial targeting activity with mutations in residues 2-4 affecting its mitochondrial targeting activity.

References

[1]. "Manipulation of the N-terminal sequence of the Borna disease virus X protein improves its mitochondrial targeting and neuroprotective potential"
Ferré, CA, Davezac N, Thouard A, Peyrin JM, Belenguer P, Miquel MC, Gonzalez-Dunia D, Szelechowski M. (2016) FASEB J, 30(4):1523-1533 PubMed

User Input

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