1 c1rnlA_
100.0
18
PDB header: signal transduction proteinChain: A: PDB Molecule: nitrate/nitrite response regulator protein narl;PDBTitle: the nitrate/nitrite response regulator protein narl from narl
2 c3c3wB_
100.0
16
PDB header: transcriptionChain: B: PDB Molecule: two component transcriptional regulatory protein devr;PDBTitle: crystal structure of the mycobacterium tuberculosis hypoxic response2 regulator dosr
3 c1zn2A_
100.0
18
PDB header: transcription regulatorChain: A: PDB Molecule: response regulatory protein;PDBTitle: low resolution structure of response regulator styr
4 c3klnC_
99.9
15
PDB header: transcriptionChain: C: PDB Molecule: transcriptional regulator, luxr family;PDBTitle: vibrio cholerae vpst
5 c1kgsA_
99.9
15
PDB header: dna binding proteinChain: A: PDB Molecule: dna binding response regulator d;PDBTitle: crystal structure at 1.50 a of an ompr/phob homolog from thermotoga2 maritima
6 c3q9sA_
99.8
15
PDB header: dna binding proteinChain: A: PDB Molecule: dna-binding response regulator;PDBTitle: crystal structure of rra(1-215) from deinococcus radiodurans
7 c2gwrA_
99.8
14
PDB header: signaling proteinChain: A: PDB Molecule: dna-binding response regulator mtra;PDBTitle: crystal structure of the response regulator protein mtra from2 mycobacterium tuberculosis
8 c3r0jA_
99.8
15
PDB header: dna binding proteinChain: A: PDB Molecule: possible two component system response transcriptionalPDBTitle: structure of phop from mycobacterium tuberculosis
9 c2oqrA_
99.8
16
PDB header: transcription,signaling proteinChain: A: PDB Molecule: sensory transduction protein regx3;PDBTitle: the structure of the response regulator regx3 from mycobacterium2 tuberculosis
10 c2hqrA_
99.8
12
PDB header: signaling proteinChain: A: PDB Molecule: putative transcriptional regulator;PDBTitle: structure of a atypical orphan response regulator protein revealed a2 new phosphorylation-independent regulatory mechanism
11 c1ys7B_
99.8
17
PDB header: transcription regulatorChain: B: PDB Molecule: transcriptional regulatory protein prra;PDBTitle: crystal structure of the response regulator protein prra comlexed with2 mg2+
12 c3sztB_
99.7
25
PDB header: transcriptionChain: B: PDB Molecule: quorum-sensing control repressor;PDBTitle: quorum sensing control repressor, qscr, bound to n-3-oxo-dodecanoyl-l-2 homoserine lactone
13 c1h0mD_
99.7
21
PDB header: transcription/dnaChain: D: PDB Molecule: transcriptional activator protein trar;PDBTitle: three-dimensional structure of the quorum sensing protein2 trar bound to its autoinducer and to its target dna
14 c2q0oA_
99.7
20
PDB header: transcriptionChain: A: PDB Molecule: probable transcriptional activator protein trar;PDBTitle: crystal structure of an anti-activation complex in bacterial quorum2 sensing
15 d1p4wa_
99.7
91
Fold: DNA/RNA-binding 3-helical bundleSuperfamily: C-terminal effector domain of the bipartite response regulatorsFamily: GerE-like (LuxR/UhpA family of transcriptional regulators)16 c3qp5C_
99.7
21
PDB header: transcriptionChain: C: PDB Molecule: cvir transcriptional regulator;PDBTitle: crystal structure of cvir bound to antagonist chlorolactone (cl)
17 c1p2fA_
99.7
16
PDB header: transcriptionChain: A: PDB Molecule: response regulator;PDBTitle: crystal structure analysis of response regulator drrb, a2 thermotoga maritima ompr/phob homolog
18 c3cloC_
99.6
31
PDB header: transcription regulatorChain: C: PDB Molecule: transcriptional regulator;PDBTitle: crystal structure of putative transcriptional regulator containing a2 luxr dna binding domain (np_811094.1) from bacteroides3 thetaiotaomicron vpi-5482 at 2.04 a resolution
19 d1s8na_
99.6
16
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related20 c1x3uA_
99.6
24
PDB header: transcriptionChain: A: PDB Molecule: transcriptional regulatory protein fixj;PDBTitle: solution structure of the c-terminal transcriptional2 activator domain of fixj from sinorhizobium melilot
21 c2krfB_
not modelled
99.6
25
PDB header: transcriptionChain: B: PDB Molecule: transcriptional regulatory protein coma;PDBTitle: nmr solution structure of the dna binding domain of competence protein2 a
22 c1zljE_
not modelled
99.6
22
PDB header: transcriptionChain: E: PDB Molecule: dormancy survival regulator;PDBTitle: crystal structure of the mycobacterium tuberculosis hypoxic2 response regulator dosr c-terminal domain
23 d1l3la1
not modelled
99.6
23
Fold: DNA/RNA-binding 3-helical bundleSuperfamily: C-terminal effector domain of the bipartite response regulatorsFamily: GerE-like (LuxR/UhpA family of transcriptional regulators)24 d1fsea_
not modelled
99.6
29
Fold: DNA/RNA-binding 3-helical bundleSuperfamily: C-terminal effector domain of the bipartite response regulatorsFamily: GerE-like (LuxR/UhpA family of transcriptional regulators)25 d1a04a1
not modelled
99.6
20
Fold: DNA/RNA-binding 3-helical bundleSuperfamily: C-terminal effector domain of the bipartite response regulatorsFamily: GerE-like (LuxR/UhpA family of transcriptional regulators)26 c1a2oB_
not modelled
99.6
16
PDB header: bacterial chemotaxisChain: B: PDB Molecule: cheb methylesterase;PDBTitle: structural basis for methylesterase cheb regulation by a2 phosphorylation-activated domain
27 c2rnjA_
not modelled
99.6
28
PDB header: transcriptionChain: A: PDB Molecule: response regulator protein vrar;PDBTitle: nmr structure of the s. aureus vrar dna binding domain
28 c2jpcA_
not modelled
99.5
36
PDB header: dna binding proteinChain: A: PDB Molecule: ssrb;PDBTitle: ssrb dna binding protein
29 d1yioa1
not modelled
99.5
25
Fold: DNA/RNA-binding 3-helical bundleSuperfamily: C-terminal effector domain of the bipartite response regulatorsFamily: GerE-like (LuxR/UhpA family of transcriptional regulators)30 d1a2oa1
not modelled
99.5
16
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related31 c3eulB_
not modelled
99.4
26
PDB header: transcriptionChain: B: PDB Molecule: possible nitrate/nitrite response transcriptionalPDBTitle: structure of the signal receiver domain of the putative2 response regulator narl from mycobacterium tuberculosis
32 d1dz3a_
not modelled
99.4
17
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related33 c3b2nA_
not modelled
99.3
16
PDB header: transcriptionChain: A: PDB Molecule: uncharacterized protein q99uf4;PDBTitle: crystal structure of dna-binding response regulator, luxr family, from2 staphylococcus aureus
34 c3cz5B_
not modelled
99.3
24
PDB header: transcription regulatorChain: B: PDB Molecule: two-component response regulator, luxr family;PDBTitle: crystal structure of two-component response regulator, luxr family,2 from aurantimonas sp. si85-9a1
35 c3t8yA_
not modelled
99.3
17
PDB header: hydrolaseChain: A: PDB Molecule: chemotaxis response regulator protein-glutamatePDBTitle: crystal structure of the response regulator domain of thermotoga2 maritima cheb
36 d1a04a2
not modelled
99.3
25
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related37 c3eq2A_
not modelled
99.3
19
PDB header: signaling proteinChain: A: PDB Molecule: probable two-component response regulator;PDBTitle: structure of hexagonal crystal form of pseudomonas2 aeruginosa rssb
38 c2ayxA_
not modelled
99.3
19
PDB header: transferaseChain: A: PDB Molecule: sensor kinase protein rcsc;PDBTitle: solution structure of the e.coli rcsc c-terminus (residues2 700-949) containing linker region and phosphoreceiver3 domain
39 c3breA_
not modelled
99.3
14
PDB header: signaling proteinChain: A: PDB Molecule: probable two-component response regulator;PDBTitle: crystal structure of p.aeruginosa pa3702
40 d1dbwa_
not modelled
99.3
20
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related41 c3i5aA_
not modelled
99.3
22
PDB header: signaling proteinChain: A: PDB Molecule: response regulator/ggdef domain protein;PDBTitle: crystal structure of full-length wpsr from pseudomonas syringae
42 c1w25B_
not modelled
99.3
11
PDB header: signaling proteinChain: B: PDB Molecule: stalked-cell differentiation controlling protein;PDBTitle: response regulator pled in complex with c-digmp
43 d1jbea_
not modelled
99.3
21
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related44 c3cu5B_
not modelled
99.2
21
PDB header: transcription regulatorChain: B: PDB Molecule: two component transcriptional regulator, arac family;PDBTitle: crystal structure of a two component transcriptional regulator arac2 from clostridium phytofermentans isdg
45 c3rqiA_
not modelled
99.2
16
PDB header: transcriptionChain: A: PDB Molecule: response regulator protein;PDBTitle: crystal structure of a response regulator protein from burkholderia2 pseudomallei with a phosphorylated aspartic acid, calcium ion and3 citrate
46 d1p6qa_
not modelled
99.2
16
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related47 c2qv0A_
not modelled
99.2
16
PDB header: transcriptionChain: A: PDB Molecule: protein mrke;PDBTitle: crystal structure of the response regulatory domain of2 protein mrke from klebsiella pneumoniae
48 d1krwa_
not modelled
99.2
18
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related49 c2rjnA_
not modelled
99.2
16
PDB header: hydrolaseChain: A: PDB Molecule: response regulator receiver:metal-dependentPDBTitle: crystal structure of an uncharacterized protein q2bku2 from2 neptuniibacter caesariensis
50 c3nhzA_
not modelled
99.2
17
PDB header: dna binding proteinChain: A: PDB Molecule: two component system transcriptional regulator mtra;PDBTitle: structure of n-terminal domain of mtra
51 d1mvoa_
not modelled
99.2
16
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related52 d1u0sy_
not modelled
99.2
21
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related53 d1ny5a1
not modelled
99.2
17
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related54 c3khtA_
not modelled
99.2
14
PDB header: signaling proteinChain: A: PDB Molecule: response regulator;PDBTitle: crystal structure of response regulator from hahella chejuensis
55 c3cfyA_
not modelled
99.2
14
PDB header: structural genomics, unknown functionChain: A: PDB Molecule: putative luxo repressor protein;PDBTitle: crystal structure of signal receiver domain of putative luxo2 repressor protein from vibrio parahaemolyticus
56 c3f6cB_
not modelled
99.2
21
PDB header: dna binding proteinChain: B: PDB Molecule: positive transcription regulator evga;PDBTitle: crystal structure of n-terminal domain of positive transcription2 regulator evga from escherichia coli
57 c3cnbC_
not modelled
99.2
17
PDB header: dna binding proteinChain: C: PDB Molecule: dna-binding response regulator, merr family;PDBTitle: crystal structure of signal receiver domain of dna binding response2 regulator protein (merr) from colwellia psychrerythraea 34h
58 c3t6kB_
not modelled
99.2
17
PDB header: signaling proteinChain: B: PDB Molecule: response regulator receiver;PDBTitle: crystal structure of a hypothetical response regulator (caur_3799)2 from chloroflexus aurantiacus j-10-fl at 1.86 a resolution
59 c3kyiB_
not modelled
99.2
17
PDB header: transferaseChain: B: PDB Molecule: chey6 protein;PDBTitle: crystal structure of the phosphorylated p1 domain of chea3 in complex2 with chey6 from r. sphaeroides
60 c1ny5A_
not modelled
99.2
17
PDB header: transcriptionChain: A: PDB Molecule: transcriptional regulator (ntrc family);PDBTitle: crystal structure of sigm54 activator (aaa+ atpase) in the inactive2 state
61 d1heya_
not modelled
99.2
18
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related62 d1kgsa2
not modelled
99.2
15
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related63 c3hebB_
not modelled
99.2
18
PDB header: transcription regulatorChain: B: PDB Molecule: response regulator receiver domain protein (chey);PDBTitle: crystal structure of response regulator receiver domain from2 rhodospirillum rubrum
64 c2qvgA_
not modelled
99.2
13
PDB header: transferaseChain: A: PDB Molecule: two component response regulator;PDBTitle: the crystal structure of a two-component response regulator2 from legionella pneumophila
65 d1k66a_
not modelled
99.1
15
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related66 d2ayxa1
not modelled
99.1
19
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related67 c3mmnA_
not modelled
99.1
16
PDB header: transferaseChain: A: PDB Molecule: histidine kinase homolog;PDBTitle: crystal structure of the receiver domain of the histidine kinase cki12 from arabidopsis thaliana complexed with mg2+
68 d1ys7a2
not modelled
99.1
17
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related69 d2a9pa1
not modelled
99.1
16
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related70 c3grcD_
not modelled
99.1
13
PDB header: transferaseChain: D: PDB Molecule: sensor protein, kinase;PDBTitle: crystal structure of a sensor protein from polaromonas sp.2 js666
71 c3h1gA_
not modelled
99.1
24
PDB header: signaling proteinChain: A: PDB Molecule: chemotaxis protein chey homolog;PDBTitle: crystal structure of chey mutant t84a of helicobacter pylori
72 d1peya_
not modelled
99.1
13
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related73 c3ilhA_
not modelled
99.1
20
PDB header: transcription regulatorChain: A: PDB Molecule: two component response regulator;PDBTitle: crystal structure of two component response regulator from cytophaga2 hutchinsonii
74 c3hdgE_
not modelled
99.1
16
PDB header: structural genomics, unknown functionChain: E: PDB Molecule: uncharacterized protein;PDBTitle: crystal structure of the n-terminal domain of an2 uncharacterized protein (ws1339) from wolinella3 succinogenes
75 d1w25a1
not modelled
99.1
12
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related76 c2jrlA_
not modelled
99.1
17
PDB header: transcriptionChain: A: PDB Molecule: transcriptional regulator (ntrc family);PDBTitle: solution structure of the beryllofluoride-activated ntrc4 receiver2 domain dimer
77 c3lteH_
not modelled
99.1
17
PDB header: transcriptionChain: H: PDB Molecule: response regulator;PDBTitle: crystal structure of response regulator (signal receiver domain) from2 bermanella marisrubri
78 c2qr3A_
not modelled
99.1
19
PDB header: transcriptionChain: A: PDB Molecule: two-component system response regulator;PDBTitle: crystal structure of the n-terminal signal receiver domain of two-2 component system response regulator from bacteroides fragilis
79 d2pl1a1
not modelled
99.1
20
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related80 c2zwmA_
not modelled
99.1
15
PDB header: transcriptionChain: A: PDB Molecule: transcriptional regulatory protein yycf;PDBTitle: crystal structure of yycf receiver domain from bacillus2 subtilis
81 c3hv2B_
not modelled
99.1
17
PDB header: signaling proteinChain: B: PDB Molecule: response regulator/hd domain protein;PDBTitle: crystal structure of signal receiver domain of hd domain-2 containing protein from pseudomonas fluorescens pf-5
82 d1i3ca_
not modelled
99.1
17
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related83 c3cg4A_
not modelled
99.1
22
PDB header: structural genomics, unknown functionChain: A: PDB Molecule: response regulator receiver domain protein (chey-like);PDBTitle: crystal structure of response regulator receiver domain protein (chey-2 like) from methanospirillum hungatei jf-1
84 c3gt7A_
not modelled
99.1
18
PDB header: hydrolaseChain: A: PDB Molecule: sensor protein;PDBTitle: crystal structure of signal receiver domain of signal2 transduction histidine kinase from syntrophus3 aciditrophicus
85 c2qzjC_
not modelled
99.1
11
PDB header: transcriptionChain: C: PDB Molecule: two-component response regulator;PDBTitle: crystal structure of a two-component response regulator from2 clostridium difficile
86 c3c3mA_
not modelled
99.1
15
PDB header: signaling proteinChain: A: PDB Molecule: response regulator receiver protein;PDBTitle: crystal structure of the n-terminal domain of response regulator2 receiver protein from methanoculleus marisnigri jr1
87 d1zh2a1
not modelled
99.1
23
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related88 d1qkka_
not modelled
99.1
20
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related89 c3crnA_
not modelled
99.0
14
PDB header: signaling proteinChain: A: PDB Molecule: response regulator receiver domain protein, chey-like;PDBTitle: crystal structure of response regulator receiver domain protein (chey-2 like) from methanospirillum hungatei jf-1
90 c3cg0A_
not modelled
99.0
19
PDB header: lyaseChain: A: PDB Molecule: response regulator receiver modulated diguanylate cyclasePDBTitle: crystal structure of signal receiver domain of modulated diguanylate2 cyclase from desulfovibrio desulfuricans g20, an example of alternate3 folding
91 d2r25b1
not modelled
99.0
14
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related92 c3hzhA_
not modelled
99.0
13
PDB header: signaling proteinChain: A: PDB Molecule: chemotaxis response regulator (chey-3);PDBTitle: crystal structure of the chex-chey-bef3-mg+2 complex from2 borrelia burgdorferi
93 c3c97A_
not modelled
99.0
18
PDB header: signaling protein, transferaseChain: A: PDB Molecule: signal transduction histidine kinase;PDBTitle: crystal structure of the response regulator receiver domain2 of a signal transduction histidine kinase from aspergillus3 oryzae
94 c3dzdA_
not modelled
99.0
16
PDB header: transcription regulatorChain: A: PDB Molecule: transcriptional regulator (ntrc family);PDBTitle: crystal structure of sigma54 activator ntrc4 in the inactive2 state
95 d1yioa2
not modelled
99.0
17
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related96 d1zgza1
not modelled
99.0
14
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related97 c2zayA_
not modelled
99.0
16
PDB header: signaling proteinChain: A: PDB Molecule: response regulator receiver protein;PDBTitle: crystal structure of response regulator from desulfuromonas2 acetoxidans
98 d1zesa1
not modelled
99.0
18
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related99 c3m6mF_
not modelled
99.0
21
PDB header: lyase/transferaseChain: F: PDB Molecule: sensory/regulatory protein rpfc;PDBTitle: crystal structure of rpff complexed with rec domain of rpfc
100 c3jteA_
not modelled
99.0
25
PDB header: protein bindingChain: A: PDB Molecule: response regulator receiver protein;PDBTitle: crystal structure of response regulator receiver domain2 protein from clostridium thermocellum
101 d1xhfa1
not modelled
99.0
17
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related102 c3a0rB_
not modelled
99.0
14
PDB header: transferaseChain: B: PDB Molecule: response regulator;PDBTitle: crystal structure of histidine kinase thka (tm1359) in complex with2 response regulator protein trra (tm1360)
103 c3kcnA_
not modelled
99.0
19
PDB header: lyaseChain: A: PDB Molecule: adenylate cyclase homolog;PDBTitle: the crystal structure of adenylate cyclase from2 rhodopirellula baltica
104 d1mb3a_
not modelled
99.0
9
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related105 c3i42A_
not modelled
99.0
12
PDB header: structural genomics, unknown functionChain: A: PDB Molecule: response regulator receiver domain protein (chey-PDBTitle: structure of response regulator receiver domain (chey-like)2 from methylobacillus flagellatus
106 c3hdvB_
not modelled
99.0
20
PDB header: transcription regulatorChain: B: PDB Molecule: response regulator;PDBTitle: crystal structure of response regulator receiver protein from2 pseudomonas putida
107 c3luaA_
not modelled
99.0
17
PDB header: transcription regulatorChain: A: PDB Molecule: response regulator receiver protein;PDBTitle: crystal structure of a signal receiver domain of two component signal2 transduction (histidine kinase) from clostridium thermocellum
108 c3eodA_
not modelled
98.9
17
PDB header: signaling proteinChain: A: PDB Molecule: protein hnr;PDBTitle: crystal structure of n-terminal domain of e. coli rssb
109 c3n0rA_
not modelled
98.9
16
PDB header: signaling proteinChain: A: PDB Molecule: response regulator;PDBTitle: structure of the phyr stress response regulator at 1.25 angstrom2 resolution
110 c2qxyB_
not modelled
98.9
17
PDB header: transcriptionChain: B: PDB Molecule: response regulator;PDBTitle: crystal structure of a response regulator from thermotoga2 maritima
111 c3gl9B_
not modelled
98.9
17
PDB header: signaling proteinChain: B: PDB Molecule: response regulator;PDBTitle: the structure of a histidine kinase-response regulator2 complex sheds light into two-component signaling and3 reveals a novel cis autophosphorylation mechanism
112 c2rdmB_
not modelled
98.9
19
PDB header: structural genomics, unknown functionChain: B: PDB Molecule: response regulator receiver protein;PDBTitle: crystal structure of response regulator receiver protein from2 sinorhizobium medicae wsm419
113 c3nhmA_
not modelled
98.9
16
PDB header: signaling proteinChain: A: PDB Molecule: response regulator;PDBTitle: crystal structure of a response regulator from myxococcus xanthus
114 c3n53B_
not modelled
98.9
16
PDB header: transcriptionChain: B: PDB Molecule: response regulator receiver modulated diguanylate cyclase;PDBTitle: crystal structure of a response regulator receiver modulated2 diguanylate cyclase from pelobacter carbinolicus
115 c2nt3A_
not modelled
98.9
13
PDB header: signaling proteinChain: A: PDB Molecule: response regulator homolog;PDBTitle: receiver domain from myxococcus xanthus social motility protein frzs2 (y102a mutant)
116 d1dcfa_
not modelled
98.9
13
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: Receiver domain of the ethylene receptor117 d2b4aa1
not modelled
98.8
15
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related118 c2qsjB_
not modelled
98.8
25
PDB header: transcriptionChain: B: PDB Molecule: dna-binding response regulator, luxr family;PDBTitle: crystal structure of a luxr family dna-binding response2 regulator from silicibacter pomeroyi
119 c3snkA_
not modelled
98.8
13
PDB header: signaling proteinChain: A: PDB Molecule: response regulator chey-like protein;PDBTitle: crystal structure of a response regulator chey-like protein (mll6475)2 from mesorhizobium loti at 2.02 a resolution
120 d1k68a_
not modelled
98.8
17
Fold: Flavodoxin-likeSuperfamily: CheY-likeFamily: CheY-related
