FSFs in boldface could be potential VSFs based on the criterion described in the text. FSFs were referenced by either SCOP ID or css. For example, the P-loop containing NTP hydrolase FSF is c.37.1, where “c” is the α/β class of secondary structure present in the protein domain, “37” is the fold, and “1” is the FSF.
SCOP ID | SCOP css | Venn group | FSF description | Distribution |
69070 | a.150.1 | V | Anti-sigma factor AsiA | dsDNA |
55064 | d.58.27 | V | Translational regulator protein regA | dsDNA |
48493 | a.120.1 | V | Gene 59 helicase assembly protein | dsDNA |
89433 | b.127.1 | V | Baseplate structural protein gp8 | dsDNA |
69652 | d.199.1 | V | DNA binding C-terminal domain of the transcription factor MotA | dsDNA |
56558 | d.182.1 | V | Baseplate structural protein gp11 | dsDNA |
49894 | b.28.1 | V | Baculovirus p35 protein | dsDNA |
160957 | e.69.1 | V | Poly(A) polymerase catalytic subunit–like | dsDNA |
51289 | b.85.5 | V | Tlp20, baculovirus telokin-like protein | dsDNA |
88648 | b.121.6 | V | Group I dsDNA viruses | dsDNA |
161240 | g.92.1 | V | T-antigen–specific domain–like | dsDNA |
118208 | e.58.1 | V | Viral ssDNA binding protein | dsDNA |
54957 | d.58.8 | V | Viral DNA binding domain | dsDNA |
51332 | b.91.1 | V | E2 regulatory, transactivation domain | dsDNA |
56548 | d.180.1 | V | Conserved core of transcriptional regulatory protein vp16 | dsDNA |
90246 | h.1.24 | V | Head morphogenesis protein gp7 | dsDNA |
47724 | a.54.1 | V | Domain of early E2A DNA binding protein, ADDBP | dsDNA |
57917 | g.51.1 | V | Zn binding domains of ADDBP | dsDNA |
49889 | b.27.1 | V | Soluble secreted chemokine inhibitor, VCCI | dsDNA |
89428 | b.126.1 | V | Adsorption protein p2 | dsDNA |
82046 | b.116.1 | V | Viral chemokine binding protein m3 | dsDNA |
158974 | b.170.1 | V | WSSV envelope protein-like | dsDNA |
47852 | a.62.1 | V | Hepatitis B viral capsid (hbcag) | dsDNA-RT |
111379 | f.47.1 | V | VP4 membrane interaction domain | dsRNA |
48345 | a.115.1 | V | A virus capsid protein alpha-helical domain | dsRNA |
69908 | e.35.1 | V | Membrane penetration protein mu1 | dsRNA |
75347 | d.13.2 | V | Rotavirus NSP2 fragment, C-terminal domain | dsRNA |
69903 | e.34.1 | V | NSP3 homodimer | dsRNA |
75574 | d.216.1 | V | Rotavirus NSP2 fragment, N-terminal domain | dsRNA |
58030 | h.1.13 | V | Rotavirus nonstructural proteins | dsRNA |
49818 | b.19.1 | V | Viral protein domain | dsRNA, minus-ssRNA, plus-ssRNA |
88650 | b.121.7 | V | Satellite viruses | ssDNA |
48045 | a.84.1 | V | Scaffolding protein gpD of bacteriophage procapsid | ssDNA |
50176 | b.37.1 | V | N-terminal domains of the minor coat protein g3p | ssDNA |
75404 | d.213.1 | V | VSV matrix protein | Minus-ssRNA |
118173 | d.293.1 | V | Phosphoprotein M1, C-terminal domain | Minus-ssRNA |
69922 | f.12.1 | V | Head and neck region of the ectodomain of NDV fusion glycoprotein | Minus-ssRNA |
101089 | a.8.5 | V | Phosphoprotein XD domain | Minus-ssRNA |
58034 | h.1.14 | V | Multimerization domain of the phosphoprotein from Sendai virus | Minus-ssRNA |
50012 | b.31.1 | V | EV matrix protein | Minus-ssRNA |
48145 | a.95.1 | V | Influenza virus matrix protein M1 | Minus-ssRNA |
143021 | d.299.1 | V | Ns1 effector domain–like | Minus-ssRNA |
161003 | e.75.1 | V | Flu NP-like | Minus-ssRNA |
160453 | d.361.1 | V | PB2 C-terminal domain–like | Minus-ssRNA |
101156 | a.30.3 | V | Nonstructural protein ns2, Nep, M1 binding domain | Minus-ssRNA |
160892 | d.378.1 | V | Phosphoprotein oligomerization domain–like | Minus-ssRNA |
56983 | f.10.1 | V | Viral glycoprotein, central and dimerization domains | Plus-ssRNA |
101257 | a.190.1 | V | Flavivirus capsid protein C | Plus-ssRNA |
103145 | d.255.1 | V | Tombusvirus P19 core protein, VP19 | Plus-ssRNA |
89043 | a.178.1 | V | Soluble domain of poliovirus core protein 3a | Plus-ssRNA |
110304 | b.148.1 | V | Coronavirus RNA binding domain | Plus-ssRNA |
101816 | b.140.1 | V | Replicase NSP9 | Plus-ssRNA |
140367 | a.8.9 | V | Coronavirus NSP7–like | Plus-ssRNA |
143076 | d.302.1 | V | Coronavirus NSP8–like | Plus-ssRNA |
144246 | g.86.1 | V | Coronavirus NSP10–like | Plus-ssRNA |
103068 | d.254.1 | V | Nucleocapsid protein dimerization domain | Plus-ssRNA |
117066 | b.1.24 | V | Accessory protein X4 (ORF8, ORF7a) | Plus-ssRNA |
143587 | d.318.1 | V | SARS receptor binding domain–like | Plus-ssRNA |
159936 | d.15.14 | V | NSP3A-like | Plus-ssRNA |
160099 | d.346.1 | V | SARS Nsp1–like | Plus-ssRNA |
140506 | a.30.8 | V | FHV B2 protein–like | Plus-ssRNA |
144251 | g.87.1 | V | Viral leader polypeptide zinc finger | Plus-ssRNA |
141666 | b.164.1 | V | SARS ORF9b–like | Plus-ssRNA |
55671 | d.102.1 | V | Regulatory factor Nef | ssRNA-RT |
56502 | d.172.1 | V | gp120 core | ssRNA-RT |
57647 | g.34.1 | V | HIV-1 VPU cytoplasmic domain | ssRNA-RT |
49749 | b.121.2 | EV | Group II dsDNA viruses VP | dsDNA |
103417 | e.48.1 | EV | Major capsid protein VP5 | dsDNA |
140713 | a.251.1 | EV | Phage replication organizer domain | dsDNA |
161008 | e.76.1 | EV | Viral glycoprotein ectodomain–like | dsDNA, minus-ssRNA |
110132 | b.147.1 | EV | BTV NS2-like ssRNA binding domain | dsRNA |
82856 | e.42.1 | EV | L-A virus major coat protein | dsRNA |
140809 | a.260.1 | EV | Rhabdovirus nucleoprotein–like | Minus-ssRNA |
101399 | a.206.1 | EV | P40 nucleoprotein | Minus-ssRNA |
55405 | d.85.1 | EV | RNA bacteriophage capsid protein | Minus-ssRNA |
68918 | a.140.4 | BV | Recombination endonuclease VII, C-terminal and dimerization domains | dsDNA |
50017 | b.32.1 | BV | gp9 | dsDNA |
58046 | h.1.17 | BV | Fibritin | dsDNA |
56826 | e.27.1 | BV | Upper collar protein gp10 (connector protein) | dsDNA |
161234 | g.91.1 | BV | E7 C-terminal domain–like | dsDNA |
140919 | a.263.1 | BV | DNA terminal protein | dsDNA |
89064 | a.179.1 | BV | Replisome organizer (g39p helicase loader/inhibitor protein) | dsDNA |
160570 | d.368.1 | BV | YonK-like | dsDNA |
51327 | b.90.1 | BV | Head binding domain of phage P22 tailspike protein | dsDNA |
141658 | b.163.1 | BV | Bacteriophage trimeric proteins domain | dsDNA |
64210 | d.186.1 | BV | Head-to-tail joining protein W, gpW | dsDNA |
51274 | b.85.2 | BV | Head decoration protein D (gpD, major capsid protein D) | dsDNA |
159865 | d.186.2 | BV | XkdW-like | dsDNA |
101059 | a.159.3 | BV | B-form DNA mimic Ocr | dsDNA |
58091 | h.4.2 | BV | Clostridium neurotoxins, “coiled-coil” domain | dsDNA |
47681 | a.49.1 | BV | C-terminal domain of B transposition protein | dsDNA |
58059 | h.2.1 | BV | Tetramerization domain of the Mnt repressor | dsDNA |
54328 | d.15.5 | BV | Staphylokinase/streptokinase | dsDNA |
64465 | d.196.1 | BV | Outer capsid protein sigma 3 | dsRNA |
57987 | h.1.4 | BV | Inovirus (filamentous phage) major coat protein | ssDNA |
160940 | e.66.1 | BEV | Api92-like | dsDNA |
160459 | d.362.1 | BEV | BLRF2-like | dsDNA |
109859 | a.214.1 | BEV | NblA-like | dsDNA |
54334 | d.15.6 | BEV | Superantigen toxins, C-terminal domain | dsDNA |
51225 | b.83.1 | BEV | Fiber shaft of virus attachment proteins | dsDNA, dsRNA |
49835 | b.21.1 | BEV | Virus attachment protein globular domain | dsDNA, dsRNA |
50203 | b.40.2 | BEV | Bacterial enterotoxins | dsDNA, ssDNA |
111474 | h.3.3 | BEV | Coronavirus S2 glycoprotein | dsDNA, plus-ssRNA |
56831 | e.28.1 | BEV | Reovirus inner layer core protein p3 | dsRNA |
109801 | a.30.5 | AV | Hypothetical protein D-63 | dsDNA |
161229 | g.90.1 | ABV | E6 C-terminal domain–like | dsDNA |
74748 | a.154.1 | ABV | Variable surface antigen VlsE | dsDNA |
143602 | d.321.1 | ABEV | STIV B116-like | dsDNA |
58064 | h.3.1 | ABEV | Influenza hemagglutinin (stalk) | dsDNA, minus-ssRNA |