NESdb

Summary for LC3 (NES ID: 296)

Full Name

Microtubule-associated proteins 1A/1B light chain 3B UniProt

Alternative Names

Autophagy-related ubiquitin-like modifier LC3 B, MAP1 light chain 3-like protein 2, MAP1A/MAP1B light chain 3 B (MAP1A/MAP1B LC3 B)

Organism

Homo sapiens (Human)

Experimental Evidence for CRM1-mediated Export

LMB Sensitive ^{Ref.1The autophagic protein LC3 translocates to the nucleus and localizes in the nucleolus associated to NUFIP1 in response to cyclic mechanical stress, Shim et al., Autophagy, 2019}

Mutations That Affect Nuclear Export

Unknown

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

>sp|Q9GZQ8|MLP3B_HUMAN Microtubule-associated proteins 1A/1B light chain 3B OS=Homo sapiens OX=9606 GN=MAP1LC3B PE=1 SV=3
MPSEKTFKQRRTFEQRVEDVRLIREQHPTKIPVIIERYKGEKQLPVLDKTKFLVPDHVNM
SELIKIIRRRLQLNANQAFFLLVNGHSMVSVSTPISEVYESEKDEDGFLYMVYASQETFG
MKLSV

Show Domain Info by CDD

Show Secondary Structure by PSIPRED

    	# PSIPRED HFORMAT (PSIPRED V3.2)

Conf: 999988733156899999999999859997638885048999999977622224784107
Pred: CCCCCCCCCCCCHHHHHHHHHHHHHHCCCCCCEEEEECCCCCCCCCCCCCCCCCCCCCCH
  AA: MPSEKTFKQRRTFEQRVEDVRLIREQHPTKIPVIIERYKGEKQLPVLDKTKFLVPDHVNM
              10        20        30        40        50        60


Conf: 898999886327598864899980930445560078773204799942899822443458
Pred: HHHHHHHHHHCCCCCCCEEEEEEECCCCCCCCCCHHHHHCCCCCCCCEEEEEECCCCCCC
  AA: SELIKIIRRRLQLNANQAFFLLVNGHSMVSVSTPISEVYESEKDEDGFLYMVYASQETFG
              70        80        90       100       110       120


Conf: 86689
Pred: CCCCC
  AA: MKLSV

Show Conservation Score by AL2CO

1     M      -1.000    *
2     P      -1.000    *
3     S      -1.000    *
4     E      -1.348
5     K      -1.148
6     T      -0.574
7     F       1.133
8     K       0.389
9     Q      -1.218
10    R      -0.727
11    R      -0.820
12    T      -0.463
13    F      -0.361
14    E      -0.778
15    Q      -1.190
16    R       2.124
17    V      -1.015
18    E      -1.235
19    D      -0.057
20    V       0.019
21    R      -1.169
22    L      -1.115
23    I       0.457
24    R      -0.595
25    E      -1.353
26    Q      -0.348
27    H       0.022
28    P      -0.653
29    T      -0.639
30    K       0.246
31    I       0.523
32    P       1.194
33    V       0.899
34    I       0.581
35    I       0.177
36    E       0.389
37    R       0.329
38    Y      -0.903
39    K      -1.201
40    G      -0.918
41    E      -0.261
42    K      -0.481
43    Q      -1.280
44    L       0.495
45    P      -0.418
46    V      -1.383
47    L       0.808
48    D      -0.234
49    K       1.362
50    T      -0.989
51    K       1.562
52    F       0.973
53    L       1.546
54    V       0.533
55    P       1.261
56    D      -1.368
57    H      -0.612
58    V       0.102
59    N      -0.344
60    M      -0.458
61    S      -0.285
62    E      -0.338
63    L       2.081
64    I      -0.908
65    K      -1.361
66    I      -0.387
67    I       0.676
68    R       0.524
69    R      -1.038
70    R       0.409
71    L       0.236
72    Q      -1.378
73    L       0.075
74    N      -1.023
75    A      -0.335
76    N      -0.664
77    Q      -0.464
78    A       0.536
79    F       0.602
80    F       1.365
81    L       0.610
82    L       0.409
83    V       0.825
84    N      -0.172
85    G      -0.276
86    H      -0.923
87    S      -0.738
88    M       0.331
89    V      -0.227
90    S      -0.585
91    V      -0.607
92    S      -0.293
93    T      -1.223
94    P      -0.675
95    I       0.601
96    S      -0.766
97    E      -0.932
98    V       0.679
99    Y       1.485
100   E      -0.882
101   S      -0.978
102   E      -0.556
103   K      -0.018
104   D       0.497
105   E      -0.624
106   D       2.864
107   G       0.292
108   F       1.910
109   L       1.454
110   Y       1.904
111   M       0.437
112   V      -0.865
113   Y       2.192
114   A       0.734
115   S       0.014
116   Q       1.392
117   E       0.081
118   T      -0.032
119   F       1.314
120   G       3.553
121   M      -1.000    *
122   K      -1.000    *
123   L      -1.000    *
124   S      -1.000    *
125   V      -1.000    *
* gap fraction no less than  0.50; conservation set to M-S
  M: mean;  S: standard deviation

al2co - The parameters are:

Input alignment file - 296.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 MPSEKTFKQR RTFEQRVEDV RLIREQHPTK IPVIIERYKG EKQLPVLDKT KFLVPDHVNM 
        70         80         90        100        110        120 SELIKIIRRR LQLNANQAFF LLVNGHSMVS VSTPISEVYE SEKDEDGFLY MVYASQETFG 
                                                                  MKLSV

3D Structures in PDB

2N9X (NMR)
5D94 (X-Ray,1.53 Å resolution)

Comments

In trabecular meshwork (TM) cells in the anterior chamber of eye, the protein LC3 accumulates 2-3 fold more in puncta (nucleolus) in the nucleus in response to cyclic mechanical stress. LMB increases the size of LC3 nuclear puncta. Transduced LC3 is cytoplasmic, but LMB treatment leads to LC3 in nuclear puncta. Drake et al. have previously found a putative NES in residue 63-73, however mutation to the NES did not change localization of EGFP-LC3. The same paper also found that the protein is not LMB sensitive. ^{Ref.2Nucleocytoplasmic Distribution and Dynamics of the Autophagosome Marker EGFP-LC3, Drake et al., PLoS One, 2010}

References

[1]. "The autophagic protein LC3 translocates to the nucleus and localizes in the nucleolus associated to NUFIP1 in response to cyclic mechanical stress"
The autophagic protein LC3 translocates to the nucleus and localizes in the nucleolus associated to NUFIP1 in response to cyclic mechanical stress. (2019) Autophagy, :doi: 10.1080/15548627.2019.1662584. PubMed
[2]. "Nucleocytoplasmic Distribution and Dynamics of the Autophagosome Marker EGFP-LC3"
Drake KR, Kang M, Kenworthy AK. (2010) PLoS One, 5(3):e9806 PubMed

User Input

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