Tutorial: Exploring Human Nucleolar Protein Orthologs in FuNGI

A proteome-level overview of how human nucleolar proteins are represented across fungal proteomes in FuNGI.

Exploring fungal orthologs with a human nucleolar proteins
Reference framework

This page expands the yeast complex-based utility demonstration by using a broader human nucleolar protein set (n = 94) curated from The Human Protein Atlas. Rather than focusing on a complex, this utility page asks a complementary question: how widely are human nucleolar proteins represented as fungal orthologs in FuNGI, and how often do those orthologs show predicted NoLS/NLS support?

It first provides a global proteome-level overview, then allows in-depth exploration of one selected fungal proteome and the fungal orthologs corresponding to 94 human nucleolar proteins.

Interpretation for this page.

FuNGI catalogs only proteins with at least one predicted NoLS. Therefore, even if an ortholog detected in a fungal proteome, it may not be displayed in the database unless it contains predicted NoLSs.


Ortholog-mapped references
43 of 94
Human nucleolar proteins with at least one detected fungal ortholog
Fungal proteomes with orthologs
756 of 769
Fungal proteomes in which at least one ortholog was detected
Mean forward identity
41.3%
Average forward BLAST percent identity of detected fungal orthologs
Mean forward coverage
78.7%
Average forward query coverage of detected fungal orthologs
Proteome-level overview
HPA ortholog scatter plot
Reading the scatter plot

Each point represents one fungal proteome. The x-axis is the proportion of detected orthologs containing predicted NLS, and the y-axis is the proportion of detected orthologs containing predicted NoLS.

Point color represents the mean FuNGI confidence score of detected orthologs.

What the plot shows

At the proteome level, substantial proportions of fungal orthologs derived from the 94 human nucleolar proteins contain predicted NoLSs and NLSs and are consistently assigned medium-to-high confidence scores in FuNGI.

x-axis: NLS+ ratio y-axis: NoLS+ ratio color: mean confidence

Mean NoLS ratio
60.88%
Across fungal proteomes
Mean NLS ratio
65.63%
Across fungal proteomes
Mean confidence score
11.95 [Medium]
Among detected orthologs with FuNGI support
Fungal orthologs of the selected proteome
Selected proteome
Mycosarcoma maydis (Corn smut fungus) (Ustilago maydis)
UP000000561
Detected orthologs
20
out of 43 reference proteins
Orthologs with predicted NoLS
15
75.00% of detected orthologs
Orthologs with predicted NLS
14
70.00% of detected orthologs
Query (Human Protein) Subject (Fungal Ortholog)
Reference protein UniProt Ortholog Gene name # NoLS # NLS PSORT Confidence RBH UniProt
sp|O15213|WDR46_HUMAN O15213 A0A0D1CZP5 UMAG_10047 2 1 nucl Medium (13.9) F: 40.443 / 77
R: 40.443 / 76
UniProt
sp|P46087|NOP2_HUMAN P46087 A0A0D1CAC0 UMAG_01467 1 2 nucl, mito, mito_nucl Medium (13.3) F: 61.247 / 45
R: 61.247 / 55
UniProt
sp|Q12788|TBL3_HUMAN Q12788 A0A0D1E2E2 UMAG_05110 2 0 nucl Medium (10.9) F: 32.729 / 84
R: 32.85 / 73
UniProt
sp|Q13206|DDX10_HUMAN Q13206 Q4P5U4 DBP4 2 2 nucl High (17.3) F: 53.893 / 56
R: 53.988 / 53
UniProt
sp|Q15050|RRS1_HUMAN Q15050 A0A0D1BXN9 UMAG_04751 1 3 nucl Medium (14.8) F: 37.262 / 66
R: 38.023 / 74
UniProt
sp|Q5C9Z4|NOM1_HUMAN Q5C9Z4 A0A0D1DQJ5 UMAG_04753 4 2 nucl High (19.4) F: 29.921 / 49
R: 29.389 / 47
UniProt
sp|Q8N9T8|KRI1_HUMAN Q8N9T8 A0A0D1CK83 UMAG_04361 5 3 nucl High (22.2) F: 29.237 / 67
R: 29.462 / 69
UniProt
sp|Q8NI36|WDR36_HUMAN Q8NI36 A0A0D1DTU8 UMAG_04232 1 0 nucl Low (7.9) F: 32.825 / 94
R: 33.604 / 87
UniProt
sp|Q96GQ7|DDX27_HUMAN Q96GQ7 Q4P9P3 DRS1 4 2 nucl High (20.3) F: 42.687 / 72
R: 43.303 / 58
UniProt
sp|Q9BRU9|UTP23_HUMAN Q9BRU9 A0A0D1E0J6 UMAG_10508 3 2 nucl High (19.7) F: 28.814 / 85
R: 28.814 / 65
UniProt
sp|Q9BSC4|NOL10_HUMAN Q9BSC4 A0A0D1DSM9 UMAG_05651 2 4 cyto, cyto_nucl High (17.2) F: 38.705 / 78
R: 38.762 / 73
UniProt
sp|Q9GZZ1|NAA50_HUMAN Q9GZZ1 A0A0D1E6C6 UMAG_01031 1 1 cyto Medium (11.6) F: 45.055 / 87
R: 44.324 / 84
UniProt
sp|Q9H9Y2|RPF1_HUMAN Q9H9Y2 A0A0D1E768 UMAG_00184 1 1 nucl Medium (12.7) F: 36.264 / 87
R: 42.735 / 52
UniProt
sp|Q9NW13|RBM28_HUMAN Q9NW13 A0A0D1E8G7 UMAG_00516 1 2 nucl High (15.7) F: 27.128 / 65
R: 27.221 / 40
UniProt
sp|Q9NZM5|NOP53_HUMAN Q9NZM5 A0A0D1DP95 UMAG_10549 3 3 nucl High (22.1) F: 29.299 / 61
R: 28.662 / 69
UniProt
What this utility shows

This utility demonstrates that FuNGI can be explored not only through well-characterized complexes, but also through a broader cross-species reference proteins.

By starting from 94 human nucleolar proteins and identifying their fungal orthologs, users can explore, within a fungal proteome of interest, how strongly individual orthologs exhibit predicted nucleolar localization signals and are prioritized by FuNGI’s integrated prediction framework.

Together with the yeast complex-based demo, this page shows that FuNGI captures a substantial fraction of conserved nucleolar protein orthologs across fungal proteomes, suggesting its utility as a prioritization framework for identifying strongly supported nucleolar localization signals.