DPCfam Metaclusters

🧬 Domain Classification in Sequence Space
DPCfam Standard DPCfam DPCfamB

The DPCfam pipeline applied the Density Peak Clustering (DPC) algorithm to roughly 23 million UniRef50 sequences (UniRef50 v. 2017_07) and automatically grouped homologous domain segments into 81,384 protein families called metaclusters, entirely without manual curation. Each metacluster was then used to build a multiple sequence alignment and a profile-HMM for downstream analysis.

The table below lists all 81,384 DPCfam metaclusters by default. Use the toggle buttons above to switch to the Standard subset (size ≥ 50 seeds, 46,828 metaclusters) or the DPCfamB subset (25 to 49 seeds, 34,556 metaclusters). Intrinsic metacluster properties appear on the left; Pfam annotations on the right. Click any MCID to open its detail page.

MCID Size UniRef50 Avg. Len. Std avg len % LC % CC % DIS Avg. TM Pfam DA % DA % Avg. Ov. Overlap Label
MC244942 92 275.8 36.6 2.76 0.16 11.67 0.12 PF08083 84.09 74.8 Reduced
MC244945 509 61.24 6.18 0.46 0.0 13.63 0.0 PF00009 97.89 24.46 Reduced
MC244946 33 146.12 23.19 0.16 0.4 71.55 0.0 PF05258 91.3 25.14 Shifted
MC244969 245 167.22 21.38 5.91 3.29 14.29 2.0 PF06775 0.77 57.69 Extended
MC244976 61 121.72 17.8 1.23 0.0 11.21 0.04 PF12586 86.67 33.84 Extended
MC244982 34 233.53 14.81 0.07 15.71 0.37 1.53 UNKNOWN 0.0 0.0 NONE
MC244984 152 54.19 5.19 0.88 0.0 24.16 0.0 PF13418 12.32 58.38 Extended
MC244992 193 156.59 37.75 8.71 0.0 40.23 0.01 PF00400 7.06 17.74 Shifted
MC245014 114 86.04 10.22 6.21 0.0 0.67 2.56 PF10101 100.0 15.84 Reduced
MC245036 130 137.15 24.23 2.66 0.12 10.67 0.11 PF13228 100.0 74.1 Extended
Legend
  • A. Metacluster Intrinsic Properties:
  • MCID: Unique identifier per metacluster.
  • 1. Size UniRef50 : Number of UniRef50 seed sequences in the metacluster.
  • 2. Avg. Len.: Mean domain length of the seeds (in amino acids).
  • 3. Std. Avg. Len.: Standard deviation of seed domain lengths.
  • 4. % LC Percent of residues located in low-complexity regions.
  • 5. % CC: Percent of residues located in coiled-coil regions.
  • 6. % DIS: Percent of residues predicted as intrinsically disordered.
  • 7. Avg.TM: Average number of transmembrane regions per domain.
  • B. Pfam Annotations:
  • 1. Pfam DA: Pfam architecture which best overlaps with MC. We refer to it as the dominant architecture (DA). If there is no overlap, the MC is tagged as UNKNOWN (representing 'dark matter').
  • 2. % DA: Percent of sequences in the MC matching the DA.
  • 3. % Avg. Ov.: Average % boundary overlap between the MC and Pfam, computed only for seeds that match the DA.
  • 4. Overlap Label: Label describing qualitatively the overlap of the MC with its DA, which can be : equivalent, reduced, extended or shifted. NONE, otherwise.
    Color-coded based on boundary agreement:
    • Yellow (Equivalent): the MC and its dominant architecture share very similar boundaries.
    • Blue (Reduced): the MC covers only part of the dominant architecture.
    • Pink (Extended): the MC extends beyond the dominant architecture boundaries.
    • Green (Shifted): the MC and the dominant architecture share a boundary offset, with poor positional agreement.