1 c6ic4C_ 
 
 
99.9 
17 
PDB header: protein transportChain:  C: PDB Molecule: toluene tolerance efflux transporter (abc superfamily, 
PDBTitle:  cryo-em structure of the a. baumannii mla complex at 8.7 a resolution
 
 
2 c5uw8C_ 
 
 
99.7 
23 
PDB header: transport proteinChain:  C: PDB Molecule: probable phospholipid abc transporter-binding protein mlad; 
PDBTitle:  structure of e. coli mce protein mlad, core mce domain
 
 
3 c5uvnF_ 
 
 
99.5 
18 
PDB header: transport proteinChain:  F: PDB Molecule: paraquat-inducible protein b; 
PDBTitle:  structure of e. coli mce protein pqib, periplasmic domain
 
 
4 c5uvnE_ 
 
 
99.5 
18 
PDB header: transport proteinChain:  E: PDB Molecule: paraquat-inducible protein b; 
PDBTitle:  structure of e. coli mce protein pqib, periplasmic domain
 
 
5 c5uvnC_ 
 
 
99.5 
18 
PDB header: transport proteinChain:  C: PDB Molecule: paraquat-inducible protein b; 
PDBTitle:  structure of e. coli mce protein pqib, periplasmic domain
 
 
6 c5uvnA_ 
 
 
99.5 
18 
PDB header: transport proteinChain:  A: PDB Molecule: paraquat-inducible protein b; 
PDBTitle:  structure of e. coli mce protein pqib, periplasmic domain
 
 
7 c5uvnB_ 
 
 
99.5 
18 
PDB header: transport proteinChain:  B: PDB Molecule: paraquat-inducible protein b; 
PDBTitle:  structure of e. coli mce protein pqib, periplasmic domain
 
 
8 c5uvnD_ 
 
 
99.5 
18 
PDB header: transport proteinChain:  D: PDB Molecule: paraquat-inducible protein b; 
PDBTitle:  structure of e. coli mce protein pqib, periplasmic domain
 
 
9 c3g67A_ 
 
 
94.5 
7 
PDB header: signaling proteinChain:  A: PDB Molecule: methyl-accepting chemotaxis protein; 
PDBTitle:  crystal structure of a soluble chemoreceptor from thermotoga2 maritima
 
 
10 c1qu7A_ 
 
 
88.2 
9 
PDB header: signaling proteinChain:  A: PDB Molecule: methyl-accepting chemotaxis protein i; 
PDBTitle:  four helical-bundle structure of the cytoplasmic domain of a serine2 chemotaxis receptor
 
 
11 c5szsC_ 
 
 
80.8 
15 
PDB header: viral proteinChain:  C: PDB Molecule: spike glycoprotein; 
PDBTitle:  glycan shield and epitope masking of a coronavirus spike protein2 observed by cryo-electron microscopy
 
 
12 c6b7nC_ 
 
 
79.6 
14 
PDB header: viral proteinChain:  C: PDB Molecule: spike protein; 
PDBTitle:  cryo-electron microscopy structure of porcine delta coronavirus spike2 protein in the pre-fusion state
 
 
13 c3lnrA_ 
 
 
69.7 
8 
PDB header: signaling proteinChain:  A: PDB Molecule: aerotaxis transducer aer2; 
PDBTitle:  crystal structure of poly-hamp domains from the p. aeruginosa soluble2 receptor aer2
 
 
14 c2ch7A_ 
 
 
67.9 
12 
PDB header: chemotaxisChain:  A: PDB Molecule: methyl-accepting chemotaxis protein; 
PDBTitle:  crystal structure of the cytoplasmic domain of a bacterial2 chemoreceptor from thermotoga maritima
 
 
15 c4n21E_ 
 
 
62.3 
15 
PDB header: viral proteinChain:  E: PDB Molecule: gp2 ectodomain; 
PDBTitle:  crystal structure of the gp2 core domain from the california academy2 of science virus
 
 
16 c6gajA_ 
 
 
60.3 
13 
PDB header: viral proteinChain:  A: PDB Molecule: outer capsid protein sigma-1; 
PDBTitle:  crystal structure of the t1l reovirus sigma1 coiled coil tail (iodide)
 
 
17 c1kmiZ_ 
 
 
60.0 
17 
PDB header: signaling proteinChain:  Z: PDB Molecule: chemotaxis protein chez; 
PDBTitle:  crystal structure of an e.coli chemotaxis protein, chez
 
 
18 c3cwgA_ 
 
 
58.3 
8 
PDB header: transcriptionChain:  A: PDB Molecule: signal transducer and activator of transcription 
PDBTitle:  unphosphorylated mouse stat3 core fragment
 
 
19 d1st6a4 
 
 
57.4 
16 
Fold: Four-helical up-and-down bundleSuperfamily: alpha-catenin/vinculin-likeFamily: alpha-catenin/vinculin
 
 
20 c4hw9E_ 
 
 
57.1 
16 
PDB header: membrane proteinChain:  E: PDB Molecule: mechanosensitive channel mscs; 
PDBTitle:  crystal structure of helicobacter pylori mscs (closed state)
 
 
21 c6cs2A_ 
 
not modelled 
55.8 
13 
PDB header: viral protein/hydrolaseChain:  A: PDB Molecule: spike glycoprotein,fibritin; 
PDBTitle:  sars spike glycoprotein - human ace2 complex, stabilized variant, all2 ace2-bound particles
 
 
22 c2kbbA_ 
 
not modelled 
55.4 
18 
PDB header: structural proteinChain:  A: PDB Molecule: talin-1; 
PDBTitle:  nmr structure of the talin rod domain, 1655-1822
 
 
23 c6nb3B_ 
 
not modelled 
55.1 
18 
PDB header: virusChain:  B: PDB Molecule: spike glycoprotein; 
PDBTitle:  mers-cov complex with human neutralizing lca60 antibody fab fragment2 (state 1)
 
 
24 c2qihA_ 
 
not modelled 
54.5 
12 
PDB header: cell adhesionChain:  A: PDB Molecule: protein uspa1; 
PDBTitle:  crystal structure of 527-665 fragment of uspa1 protein from moraxella2 catarrhalis
 
 
25 c3t9nG_ 
 
not modelled 
53.3 
19 
PDB header: membrane proteinChain:  G: PDB Molecule: small-conductance mechanosensitive channel; 
PDBTitle:  crystal structure of a membrane protein
 
 
26 c6cv0C_ 
 
not modelled 
52.6 
16 
PDB header: viral proteinChain:  C: PDB Molecule: spike glycoprotein; 
PDBTitle:  cryo-electron microscopy structure of infectious bronchitis2 coronavirus spike protein
 
 
27 c4rh7A_ 
 
not modelled 
49.4 
11 
PDB header: motor proteinChain:  A: PDB Molecule: green fluorescent protein/cytoplasmic dynein 2 heavy chain 
PDBTitle:  crystal structure of human cytoplasmic dynein 2 motor domain in2 complex with adp.vi
 
 
28 c6nzkB_ 
 
not modelled 
48.0 
18 
PDB header: viral proteinChain:  B: PDB Molecule: spike surface glycoprotein; 
PDBTitle:  structural basis for human coronavirus attachment to sialic acid2 receptors
 
 
29 c5xbjA_ 
 
not modelled 
47.5 
16 
PDB header: biosynthetic proteinChain:  A: PDB Molecule: flagellar hook-associated protein flgk; 
PDBTitle:  the structure of the flagellar hook junction protein hap1 (flgk) from2 campylobacter jejuni
 
 
30 d1ykhb1 
 
not modelled 
47.4 
6 
Fold: Mediator hinge subcomplex-likeSuperfamily: Mediator hinge subcomplex-likeFamily: CSE2-like
 
 
31 c5zuvB_ 
 
not modelled 
47.2 
24 
PDB header: viral protein, inhibitorChain:  B: PDB Molecule: spike glycoprotein,spike glycoprotein,inhibitor ek1; 
PDBTitle:  crystal structure of the human coronavirus 229e hr1 motif in complex2 with pan-covs inhibitor ek1
 
 
32 c5u0pU_ 
 
not modelled 
44.7 
8 
PDB header: transcriptionChain:  U: PDB Molecule: mediator complex subunit 21; 
PDBTitle:  cryo-em structure of the transcriptional mediator
 
 
33 c3ok8A_ 
 
not modelled 
44.4 
9 
PDB header: protein bindingChain:  A: PDB Molecule: brain-specific angiogenesis inhibitor 1-associated protein 
PDBTitle:  i-bar of pinkbar
 
 
34 c3zx6A_ 
 
not modelled 
44.2 
7 
PDB header: signalingChain:  A: PDB Molecule: hamp, methyl-accepting chemotaxis protein i; 
PDBTitle:  structure of hamp(af1503)-tsr fusion - hamp (a291v) mutant
 
 
35 c5x5fC_ 
 
not modelled 
43.5 
18 
PDB header: viral proteinChain:  C: PDB Molecule: s protein; 
PDBTitle:  prefusion structure of mers-cov spike glycoprotein, conformation 2
 
 
36 c3vkhA_ 
 
not modelled 
43.4 
10 
PDB header: motor proteinChain:  A: PDB Molecule: dynein heavy chain, cytoplasmic; 
PDBTitle:  x-ray structure of a functional full-length dynein motor domain
 
 
37 c5zhyA_ 
 
not modelled 
43.0 
10 
PDB header: viral proteinChain:  A: PDB Molecule: spike glycoprotein, spike glycoprotein; 
PDBTitle:  structural characterization of the hcov-229e fusion core
 
 
38 c5wrgB_ 
 
not modelled 
42.2 
16 
PDB header: virus like particleChain:  B: PDB Molecule: spike glycoprotein; 
PDBTitle:  sars-cov spike glycoprotein
 
 
39 c4abxB_ 
 
not modelled 
40.5 
11 
PDB header: dna binding proteinChain:  B: PDB Molecule: dna repair protein recn; 
PDBTitle:  crystal structure of deinococcus radiodurans recn coiled-2 coil domain
 
 
40 c5i08A_ 
 
not modelled 
39.8 
15 
PDB header: viral proteinChain:  A: PDB Molecule: spike glycoprotein, envelope glycoprotein chimera; 
PDBTitle:  prefusion structure of a human coronavirus spike protein
 
 
41 c2wpqA_ 
 
not modelled 
39.3 
12 
PDB header: membrane proteinChain:  A: PDB Molecule: trimeric autotransporter adhesin fragment; 
PDBTitle:  salmonella enterica sada 479-519 fused to gcn4 adaptors (sadak3, in-2 register fusion)
 
 
42 c5n77A_ 
 
not modelled 
39.1 
12 
PDB header: transport proteinChain:  A: PDB Molecule: magnesium transport protein cora; 
PDBTitle:  crystal structure of the cytosolic domain of the cora magnesium2 channel from escherichia coli in complex with magnesium
 
 
43 c3jclC_ 
 
not modelled 
37.8 
20 
PDB header: viral proteinChain:  C: PDB Molecule: spike glycoprotein; 
PDBTitle:  cryo-electron microscopy structure of a coronavirus spike glycoprotein2 trimer
 
 
44 c2ieqC_ 
 
not modelled 
37.7 
15 
PDB header: viral proteinChain:  C: PDB Molecule: spike glycoprotein; 
PDBTitle:  core structure of s2 from the human coronavirus nl63 spike2 glycoprotein
 
 
45 c6b3oB_ 
 
not modelled 
35.3 
22 
PDB header: viral proteinChain:  B: PDB Molecule: spike glycoprotein; 
PDBTitle:  tectonic conformational changes of a coronavirus spike glycoprotein2 promote membrane fusion
 
 
46 c5x5bB_ 
 
not modelled 
33.7 
11 
PDB header: viral proteinChain:  B: PDB Molecule: spike glycoprotein; 
PDBTitle:  prefusion structure of sars-cov spike glycoprotein, conformation 2
 
 
47 c1wyyB_ 
 
not modelled 
33.7 
13 
PDB header: viral proteinChain:  B: PDB Molecule: e2 glycoprotein; 
PDBTitle:  post-fusion hairpin conformation of the sars coronavirus spike2 glycoprotein
 
 
48 c2qf4A_ 
 
not modelled 
33.6 
22 
PDB header: structural proteinChain:  A: PDB Molecule: cell shape determining protein mrec; 
PDBTitle:  high resolution structure of the major periplasmic domain from the2 cell shape-determining filament mrec (orthorhombic form)
 
 
49 c5xlrC_ 
 
not modelled 
33.4 
13 
PDB header: viral proteinChain:  C: PDB Molecule: spike glycoprotein; 
PDBTitle:  structure of sars-cov spike glycoprotein
 
 
50 c4e40A_ 
 
not modelled 
33.2 
8 
PDB header: transport proteinChain:  A: PDB Molecule: putative uncharacterized protein; 
PDBTitle:  the haptoglobin-hemoglobin receptor of trypanosoma congolense
 
 
51 c4njlA_ 
 
not modelled 
32.4 
13 
PDB header: viral proteinChain:  A: PDB Molecule: s protein; 
PDBTitle:  crystal structure of middle east respiratory syndrome coronavirus s22 protein fusion core
 
 
52 c2vv5D_ 
 
not modelled 
32.1 
23 
PDB header: membrane proteinChain:  D: PDB Molecule: small-conductance mechanosensitive channel; 
PDBTitle:  the open structure of mscs
 
 
53 c4wsrA_ 
 
not modelled 
31.3 
13 
PDB header: viral proteinChain:  A: PDB Molecule: hemagglutinin; 
PDBTitle:  the crystal structure of hemagglutinin form a/chicken/new york/14677-2 13/1998
 
 
54 d1g4us1 
 
not modelled 
30.8 
11 
Fold: Four-helical up-and-down bundleSuperfamily: Bacterial GAP domainFamily: Bacterial GAP domain
 
 
55 c2vs0B_ 
 
not modelled 
30.8 
14 
PDB header: cell invasionChain:  B: PDB Molecule: virulence factor esxa; 
PDBTitle:  structural analysis of homodimeric staphylococcal aureus2 virulence factor esxa
 
 
56 c3gvmA_ 
 
not modelled 
29.7 
11 
PDB header: viral proteinChain:  A: PDB Molecule: putative uncharacterized protein sag1039; 
PDBTitle:  structure of the homodimeric wxg-100 family protein from streptococcus2 agalactiae
 
 
57 c6e6aB_ 
 
not modelled 
29.2 
10 
PDB header: protein bindingChain:  B: PDB Molecule: inclusion membrane protein a; 
PDBTitle:  triclinic crystal form of inca g144a point mutant
 
 
58 c3j6vL_ 
 
not modelled 
28.0 
18 
PDB header: ribosomeChain:  L: PDB Molecule: 28s ribosomal protein s12, mitochondrial; 
PDBTitle:  cryo-em structure of the small subunit of the mammalian mitochondrial2 ribosome
 
 
59 c5lp5F_ 
 
not modelled 
27.4 
38 
PDB header: hydrolase/antibioticChain:  F: PDB Molecule: rod shape-determining protein (mrec); 
PDBTitle:  complex between penicillin-binding protein (pbp2) and mrec from2 helicobacter pylori
 
 
60 c1zn1L_ 
 
not modelled 
26.4 
26 
PDB header: biosynthetic/structural protein/rnaChain:  L: PDB Molecule: 30s ribosomal protein s12; 
PDBTitle:  coordinates of rrf fitted into cryo-em map of the 70s post-termination2 complex
 
 
61 d1eq1a_ 
 
not modelled 
26.3 
12 
Fold: Apolipophorin-IIISuperfamily: Apolipophorin-IIIFamily: Apolipophorin-III
 
 
62 d2uubl1 
 
not modelled 
26.1 
32 
Fold: OB-foldSuperfamily: Nucleic acid-binding proteinsFamily: Cold shock DNA-binding domain-like
 
 
63 c5zkgB_ 
 
not modelled 
25.9 
15 
PDB header: ligaseChain:  B: PDB Molecule: aminoacyl-trna synthetase-interacting multifunctional 
PDBTitle:  crystal structure of c-terminal domain of plasmodium vivax p43
 
 
64 c1deqF_ 
 
not modelled 
24.7 
8 
PDB header: blood clottingChain:  F: PDB Molecule: fibrinogen (gamma chain); 
PDBTitle:  the crystal structure of modified bovine fibrinogen (at ~42 angstrom resolution)
 
 
65 c6qajB_ 
 
not modelled 
23.8 
4 
PDB header: nuclear proteinChain:  B: PDB Molecule: endolysin,transcription intermediary factor 1-beta; 
PDBTitle:  structure of the tripartite motif of kap1/trim28
 
 
66 c1ei3E_ 
 
not modelled 
22.8 
13 
PDB header: blood clottingChain:  E: PDB Molecule: fibrinogen; 
PDBTitle:  crystal structure of native chicken fibrinogen
 
 
67 c5xauD_ 
 
not modelled 
22.8 
18 
PDB header: cell adhesionChain:  D: PDB Molecule: laminin subunit alpha-5; 
PDBTitle:  crystal structure of integrin binding fragment of laminin-511
 
 
68 c4mc5C_ 
 
not modelled 
22.2 
10 
PDB header: viral proteinChain:  C: PDB Molecule: hemagglutinin; 
PDBTitle:  crystal structure of a subtype h18 hemagglutinin homologue from2 a/flat-faced bat/peru/033/2010 (h18n11)
 
 
69 c2yfaA_ 
 
not modelled 
20.6 
10 
PDB header: receptorChain:  A: PDB Molecule: methyl-accepting chemotaxis transducer; 
PDBTitle:  x-ray structure of mcps ligand binding domain in complex with malate
 
 
70 d2qall1 
 
not modelled 
20.6 
26 
Fold: OB-foldSuperfamily: Nucleic acid-binding proteinsFamily: Cold shock DNA-binding domain-like
 
 
71 c2l81A_ 
 
not modelled 
19.6 
10 
PDB header: cell adhesionChain:  A: PDB Molecule: enhancer of filamentation 1; 
PDBTitle:  solution nmr structure of the serine-rich domain of hef1 (enhancer of2 filamentation 1) from homo sapiens, northeast structural genomics3 consortium target hr5554a
 
 
72 d1ntga_ 
 
not modelled 
18.4 
11 
Fold: OB-foldSuperfamily: Nucleic acid-binding proteinsFamily: Myf domain
 
 
73 c2j9wB_ 
 
not modelled 
17.9 
11 
PDB header: protein transportChain:  B: PDB Molecule: vps28-prov protein; 
PDBTitle:  structural insight into the escrt-i-ii link and its role in mvb2 trafficking
 
 
74 d1i94l_ 
 
not modelled 
17.9 
32 
Fold: OB-foldSuperfamily: Nucleic acid-binding proteinsFamily: Cold shock DNA-binding domain-like
 
 
75 c1deqO_ 
 
not modelled 
17.9 
12 
PDB header: blood clottingChain:  O: PDB Molecule: fibrinogen (beta chain); 
PDBTitle:  the crystal structure of modified bovine fibrinogen (at ~42 angstrom resolution)
 
 
76 c4fiuC_ 
 
not modelled 
17.3 
17 
PDB header: viral proteinChain:  C: PDB Molecule: hemagglutinin; 
PDBTitle:  the structure of hemagglutinin of h16 subtype influenza virus with2 v327g mutation
 
 
77 d1hcia4 
 
not modelled 
16.6 
3 
Fold: Spectrin repeat-likeSuperfamily: Spectrin repeatFamily: Spectrin repeat
 
 
78 c5y4oA_ 
 
not modelled 
16.4 
24 
PDB header: membrane proteinChain:  A: PDB Molecule: low conductance mechanosensitive channel ynai; 
PDBTitle:  cryo-em structure of mscs channel, ynai
 
 
79 c1ha0A_ 
 
not modelled 
16.2 
14 
PDB header: viral proteinChain:  A: PDB Molecule: protein (hemagglutinin precursor); 
PDBTitle:  hemagglutinin precursor ha0
 
 
80 d1g7oa1 
 
not modelled 
16.1 
9 
Fold: GST C-terminal domain-likeSuperfamily: GST C-terminal domain-likeFamily: Glutathione S-transferase (GST), C-terminal domain
 
 
81 c2kg7B_ 
 
not modelled 
16.1 
13 
PDB header: unknown functionChain:  B: PDB Molecule: esat-6-like protein esxh; 
PDBTitle:  structure and features of the complex formed by the tuberculosis2 virulence factors rv0287 and rv0288
 
 
82 d1fl0a_ 
 
not modelled 
15.9 
7 
Fold: OB-foldSuperfamily: Nucleic acid-binding proteinsFamily: Myf domain
 
 
83 c4iogD_ 
 
not modelled 
15.9 
10 
PDB header: unknown functionChain:  D: PDB Molecule: secreted protein esxb; 
PDBTitle:  the crystal structure of a secreted protein esxb (wild-type, in p212 space group) from bacillus anthracis str. sterne
 
 
84 d1oxza_ 
 
not modelled 
15.6 
11 
Fold: Spectrin repeat-likeSuperfamily: GAT-like domainFamily: GAT domain
 
 
85 c1oxzA_ 
 
not modelled 
15.6 
11 
PDB header: membrane proteinChain:  A: PDB Molecule: adp-ribosylation factor binding protein gga1; 
PDBTitle:  crystal structure of the human gga1 gat domain
 
 
86 c6ezvX_ 
 
not modelled 
15.4 
12 
PDB header: toxinChain:  X: PDB Molecule: non-hemolytic enterotoxin lytic component l1; 
PDBTitle:  the cytotoxin maka from vibrio cholerae
 
 
87 c3bt6B_ 
 
not modelled 
15.2 
17 
PDB header: viral proteinChain:  B: PDB Molecule: influenza b hemagglutinin (ha); 
PDBTitle:  crystal structure of influenza b virus hemagglutinin
 
 
88 c4ut1A_ 
 
not modelled 
15.2 
13 
PDB header: motor proteinChain:  A: PDB Molecule: flagellar hook-associated protein; 
PDBTitle:  the structure of the flagellar hook junction protein flgk2 from burkholderia pseudomallei
 
 
89 c2bezC_ 
 
not modelled 
15.1 
14 
PDB header: viral proteinChain:  C: PDB Molecule: e2 glycoprotein; 
PDBTitle:  structure of a proteolitically resistant core from the severe acute2 respiratory syndrome coronavirus s2 fusion protein
 
 
90 c2d4yA_ 
 
not modelled 
14.4 
10 
PDB header: structural proteinChain:  A: PDB Molecule: flagellar hook-associated protein 1; 
PDBTitle:  crystal structure of a 49k fragment of hap1 (flgk)
 
 
91 c2v75A_ 
 
not modelled 
14.3 
16 
PDB header: nuclear proteinChain:  A: PDB Molecule: nuclear polyadenylated rna-binding protein nab2; 
PDBTitle:  n-terminal domain of nab2
 
 
92 c2gl2B_ 
 
not modelled 
14.3 
9 
PDB header: cell adhesionChain:  B: PDB Molecule: adhesion a; 
PDBTitle:  crystal structure of the tetra muntant (t66g,r67g,f68g,y69g) of2 bacterial adhesin fada
 
 
93 d1szia_ 
 
not modelled 
13.8 
12 
Fold: Four-helical up-and-down bundleSuperfamily: Mannose-6-phosphate receptor binding protein 1 (Tip47), C-terminal domainFamily: Mannose-6-phosphate receptor binding protein 1 (Tip47), C-terminal domain
 
 
94 c2idxA_ 
 
not modelled 
13.2 
13 
PDB header: transferaseChain:  A: PDB Molecule: cob(i)yrinic acid a,c-diamide adenosyltransferase; 
PDBTitle:  structure of human atp:cobalamin adenosyltransferase bound to atp.
 
 
95 c6j9rA_ 
 
not modelled 
13.2 
13 
PDB header: translationChain:  A: PDB Molecule: brain tumor protein; 
PDBTitle:  coiled-coil domain of drosophila trim protein brat
 
 
96 c3ur1C_ 
 
not modelled 
13.1 
19 
PDB header: immune systemChain:  C: PDB Molecule: methyl-accepting chemotaxis protein; 
PDBTitle:  the structure of a ternary complex between chea domains p4 and p5 with2 chew and with a truncated fragment of tm14, a chemoreceptor analog3 from thermotoga maritima.
 
 
97 c5gasN_ 
 
not modelled 
13.0 
7 
PDB header: hydrolaseChain:  N: PDB Molecule: archaeal/vacuolar-type h+-atpase subunit i; 
PDBTitle:  thermus thermophilus v/a-atpase, conformation 2
 
 
98 c4tkoB_ 
 
not modelled 
13.0 
15 
PDB header: membrane proteinChain:  B: PDB Molecule: emra; 
PDBTitle:  structure of the periplasmic adaptor protein emra
 
 
99 d2j9ua1 
 
not modelled 
12.4 
14 
Fold: Four-helical up-and-down bundleSuperfamily: VPS28 C-terminal domain-likeFamily: VPS28 C-terminal domain-like