1 c2owoA_
100.0
43
PDB header: ligase/dnaChain: A: PDB Molecule: dna ligase;
PDBTitle: last stop on the road to repair: structure of e.coli dna ligase bound2 to nicked dna-adenylate
2 c1dgsB_
100.0
44
PDB header: ligaseChain: B: PDB Molecule: dna ligase;
PDBTitle: crystal structure of nad+-dependent dna ligase from t.2 filiformis
3 c1v9pB_
100.0
45
PDB header: ligaseChain: B: PDB Molecule: dna ligase;
PDBTitle: crystal structure of nad+-dependent dna ligase
4 c4glxA_
100.0
44
PDB header: ligase/ligase inhibitor/dnaChain: A: PDB Molecule: dna ligase;
PDBTitle: dna ligase a in complex with inhibitor
5 c3sgiA_
100.0
100
PDB header: ligaseChain: A: PDB Molecule: dna ligase;
PDBTitle: crystal structure of dna ligase a brct domain deleted mutant of2 mycobacterium tuberculosis
6 c1zauA_
100.0
100
PDB header: ligaseChain: A: PDB Molecule: dna ligase;
PDBTitle: adenylation domain of nad+ dependent dna ligase from m.tuberculosis
7 c3pn1A_
100.0
43
PDB header: ligase/ligase inhibitorChain: A: PDB Molecule: dna ligase;
PDBTitle: novel bacterial nad+-dependent dna ligase inhibitors with broad2 spectrum potency and antibacterial efficacy in vivo
8 d1ta8a_
100.0
41
Fold: ATP-graspSuperfamily: DNA ligase/mRNA capping enzyme, catalytic domainFamily: Adenylation domain of NAD+-dependent DNA ligase
9 c3jslA_
100.0
40
PDB header: ligaseChain: A: PDB Molecule: dna ligase;
PDBTitle: crystal structure of the adenylation domain of nad+-2 dependent dna ligase from staphylococcus aureus
10 d1dgsa3
100.0
46
Fold: ATP-graspSuperfamily: DNA ligase/mRNA capping enzyme, catalytic domainFamily: Adenylation domain of NAD+-dependent DNA ligase
11 d1b04a_
100.0
44
Fold: ATP-graspSuperfamily: DNA ligase/mRNA capping enzyme, catalytic domainFamily: Adenylation domain of NAD+-dependent DNA ligase
12 d1v9pa3
100.0
47
Fold: ATP-graspSuperfamily: DNA ligase/mRNA capping enzyme, catalytic domainFamily: Adenylation domain of NAD+-dependent DNA ligase
13 c4glwA_
100.0
39
PDB header: ligase/ligase inhibitorChain: A: PDB Molecule: dna ligase;
PDBTitle: dna ligase a in complex with inhibitor
14 c3bacA_
100.0
44
PDB header: ligaseChain: A: PDB Molecule: dna ligase;
PDBTitle: structural basis for the inhibition of bacterial nad+2 dependent dna ligase
15 d1dgsa1
100.0
37
Fold: SAM domain-likeSuperfamily: RuvA domain 2-likeFamily: NAD+-dependent DNA ligase, domain 3
16 d1dgsa2
100.0
50
Fold: OB-foldSuperfamily: Nucleic acid-binding proteinsFamily: DNA ligase/mRNA capping enzyme postcatalytic domain
17 c6flqF_
99.8
21
PDB header: transcriptionChain: F: PDB Molecule: transcription termination/antitermination protein nusa;
PDBTitle: cryoem structure of e.coli rna polymerase paused elongation complex2 bound to nusa
18 d1x9na3
99.7
19
Fold: ATP-graspSuperfamily: DNA ligase/mRNA capping enzyme, catalytic domainFamily: ATP-dependent DNA ligase catalytic domain
19 c2ebuA_
99.7
48
PDB header: replicationChain: A: PDB Molecule: replication factor c subunit 1;
PDBTitle: solution structure of the brct domain from human2 replication factor c large subunit 1
20 d1l7ba_
99.6
43
Fold: BRCT domainSuperfamily: BRCT domainFamily: DNA ligase
21 c2mutA_
not modelled
99.2
30
PDB header: hydrolaseChain: A: PDB Molecule: dna excision repair protein ercc-1;
PDBTitle: solution structure of the f231l mutant ercc1-xpf dimerization region
22 c2cokA_
not modelled
99.2
23
PDB header: transferaseChain: A: PDB Molecule: poly [adp-ribose] polymerase-1;
PDBTitle: solution structure of brct domain of poly(adp-ribose)2 polymerase-1
23 d2a1jb1
not modelled
99.2
31
Fold: SAM domain-likeSuperfamily: RuvA domain 2-likeFamily: Hef domain-like
24 c3gdeA_
not modelled
99.1
20
PDB header: ligaseChain: A: PDB Molecule: dna ligase;
PDBTitle: the closed conformation of atp-dependent dna ligase from archaeoglobus2 fulgidus
25 c2hivA_
not modelled
99.0
18
PDB header: ligaseChain: A: PDB Molecule: thermostable dna ligase;
PDBTitle: atp-dependent dna ligase from s. solfataricus
26 c3l2pA_
not modelled
99.0
16
PDB header: ligase/dnaChain: A: PDB Molecule: dna ligase 3;
PDBTitle: human dna ligase iii recognizes dna ends by dynamic switching between2 two dna bound states
27 c2vugB_
not modelled
99.0
20
PDB header: ligaseChain: B: PDB Molecule: pab1020;
PDBTitle: the structure of an archaeal homodimeric rna ligase
28 d1x2ia1
not modelled
99.0
32
Fold: SAM domain-likeSuperfamily: RuvA domain 2-likeFamily: Hef domain-like
29 c2cfmA_
not modelled
98.9
19
PDB header: ligaseChain: A: PDB Molecule: thermostable dna ligase;
PDBTitle: atp-dependent dna ligase from pyrococcus furiosus
30 d2bgwa1
not modelled
98.9
27
Fold: SAM domain-likeSuperfamily: RuvA domain 2-likeFamily: Hef domain-like
31 c4d05A_
not modelled
98.8
18
PDB header: ligaseChain: A: PDB Molecule: atp-dependent dna ligase;
PDBTitle: structure and activity of a minimal-type atp-dependent dna ligase from2 a psychrotolerant bacterium
32 c3w1bA_
not modelled
98.8
16
PDB header: ligaseChain: A: PDB Molecule: dna ligase 4;
PDBTitle: crystal structure of human dna ligase iv-artemis complex (mercury2 derivative)
33 c6dt1E_
not modelled
98.8
14
PDB header: ligase/dnaChain: E: PDB Molecule: dna ligase;
PDBTitle: crystal structure of the ligase from bacteriophage t4 complexed with2 dna intermediate
34 c1x9nA_
not modelled
98.7
20
PDB header: ligase/dnaChain: A: PDB Molecule: dna ligase i;
PDBTitle: crystal structure of human dna ligase i bound to 5'-adenylated, nicked2 dna
35 c6gdrA_
not modelled
98.7
19
PDB header: ligaseChain: A: PDB Molecule: dna ligase;
PDBTitle: dna binding with a minimal scaffold: structure-function analysis of2 lig e dna ligases
36 c2d8mA_
not modelled
98.7
16
PDB header: dna binding proteinChain: A: PDB Molecule: dna-repair protein xrcc1;
PDBTitle: solution structure of the first brct domain of dna-repair2 protein xrcc1
37 c4bmcA_
not modelled
98.5
17
PDB header: replicationChain: A: PDB Molecule: s-m checkpoint control protein rad4;
PDBTitle: crystal structure of s.pombe rad4 brct1,2
38 c6rasI_
not modelled
98.5
20
PDB header: dna binding proteinChain: I: PDB Molecule: atp-dependent dna ligase;
PDBTitle: pmar-lig_pre.
39 c3ef0A_
not modelled
98.5
16
PDB header: hydrolaseChain: A: PDB Molecule: rna polymerase ii subunit a c-terminal domain phosphatase;
PDBTitle: the structure of fcp1, an essential rna polymerase ii ctd phosphatase
40 d1kfta_
not modelled
98.5
26
Fold: SAM domain-likeSuperfamily: RuvA domain 2-likeFamily: Excinuclease UvrC C-terminal domain
41 c1kftA_
not modelled
98.5
26
PDB header: dna binding proteinChain: A: PDB Molecule: excinuclease abc subunit c;
PDBTitle: solution structure of the c-terminal domain of uvrc from e-2 coli
42 c3qwuA_
not modelled
98.5
19
PDB header: ligaseChain: A: PDB Molecule: dna ligase;
PDBTitle: putative atp-dependent dna ligase from aquifex aeolicus.
43 c6imnB_
not modelled
98.5
13
PDB header: ligase/dnaChain: B: PDB Molecule: dna ligase;
PDBTitle: the crystal structure of asfvlig:ct2 complex
44 c3l3eA_
not modelled
98.4
16
PDB header: cell cycleChain: A: PDB Molecule: dna topoisomerase 2-binding protein 1;
PDBTitle: crystal structure of the sixth brct domain of human topbp1
45 c2lyhA_
not modelled
98.4
29
PDB header: dna binding proteinChain: A: PDB Molecule: fanconi anemia-associated protein of 24 kda;
PDBTitle: structure of faap24 residues 141-215
46 c2couA_
not modelled
98.4
7
PDB header: cell cycleChain: A: PDB Molecule: ect2 protein;
PDBTitle: solution structure of the second brct domain of epithelial2 cell transforming 2
47 c2xnkA_
not modelled
98.4
25
PDB header: isomeraseChain: A: PDB Molecule: dna topoisomerase 2-binding protein 1;
PDBTitle: structure and function of the rad9-binding region of the dna damage2 checkpoint adaptor topbp1
48 c4bxoA_
not modelled
98.3
17
PDB header: hydrolase/dnaChain: A: PDB Molecule: fanconi anemia group m protein;
PDBTitle: architecture and dna recognition elements of the fanconi anemia fancm-2 faap24 complex
49 c1p8lA_
not modelled
98.3
14
PDB header: ligaseChain: A: PDB Molecule: pbcv-1 dna ligase;
PDBTitle: new crystal structure of chlorella virus dna ligase-adenylate
50 c2nrzB_
not modelled
98.3
33
PDB header: hydrolaseChain: B: PDB Molecule: uvrabc system protein c;
PDBTitle: crystal structure of the c-terminal half of uvrc bound to its2 catalytic divalent cation
51 d1cdza_
not modelled
98.3
13
Fold: BRCT domainSuperfamily: BRCT domainFamily: DNA-repair protein XRCC1
52 c3ef1A_
not modelled
98.3
18
PDB header: hydrolaseChain: A: PDB Molecule: rna polymerase ii subunit a c-terminal domain phosphatase;
PDBTitle: the structure of fcp1, an essential rna polymerase ii ctd phosphatase
53 c2e2wA_
not modelled
98.2
10
PDB header: ligaseChain: A: PDB Molecule: dna ligase 4;
PDBTitle: solution structure of the first brct domain of human dna2 ligase iv
54 c3ii6Y_
not modelled
98.2
10
PDB header: ligase/dna binding proteinChain: Y: PDB Molecule: dna ligase 4;
PDBTitle: structure of human xrcc4 in complex with the tandem brct2 domains of dna ligaseiv.
55 c4n40A_
not modelled
98.2
18
PDB header: cell cycleChain: A: PDB Molecule: protein ect2;
PDBTitle: crystal structure of human epithelial cell-transforming sequence 22 protein
56 c3ktfB_
not modelled
98.2
22
PDB header: cell cycleChain: B: PDB Molecule: microcephalin;
PDBTitle: structure of the n-terminal brct domain of human microcephalin2 (mcph1).
57 d1fvia2
not modelled
98.1
17
Fold: ATP-graspSuperfamily: DNA ligase/mRNA capping enzyme, catalytic domainFamily: ATP-dependent DNA ligase catalytic domain
58 d1kzyc1
not modelled
98.1
12
Fold: BRCT domainSuperfamily: BRCT domainFamily: 53BP1
59 d1wf6a_
not modelled
98.1
15
Fold: BRCT domainSuperfamily: BRCT domainFamily: DNA topoisomerase II binding protein 1, TopBP1
60 c3c1zA_
not modelled
98.1
23
PDB header: dna binding proteinChain: A: PDB Molecule: dna integrity scanning protein disa;
PDBTitle: structure of the ligand-free form of a bacterial dna damage sensor2 protein
61 c2bhnD_
not modelled
98.1
26
PDB header: hydrolaseChain: D: PDB Molecule: xpf endonuclease;
PDBTitle: xpf from aeropyrum pernix
62 c4bxoB_
not modelled
98.0
29
PDB header: hydrolase/dnaChain: B: PDB Molecule: fanconi anemia-associated protein of 24 kda;
PDBTitle: architecture and dna recognition elements of the fanconi anemia fancm-2 faap24 complex
63 d2i1qa1
not modelled
98.0
26
Fold: SAM domain-likeSuperfamily: Rad51 N-terminal domain-likeFamily: DNA repair protein Rad51, N-terminal domain
64 d1t15a2
not modelled
98.0
17
Fold: BRCT domainSuperfamily: BRCT domainFamily: BRCT domain
65 c4bmdA_
not modelled
98.0
19
PDB header: replicationChain: A: PDB Molecule: s-m checkpoint control protein rad4;
PDBTitle: crystal structure of s.pombe rad4 brct3,4
66 d2aq0a1
not modelled
98.0
21
Fold: SAM domain-likeSuperfamily: RuvA domain 2-likeFamily: Hef domain-like
67 c1kzyD_
not modelled
97.9
13
PDB header: dna binding protein, protein bindingChain: D: PDB Molecule: tumor suppressor p53-binding protein 1;
PDBTitle: crystal structure of the 53bp1 brct region complexed to2 tumor suppressor p53
68 c2vxcA_
not modelled
97.9
15
PDB header: cell cycleChain: A: PDB Molecule: dna repair protein rhp9;
PDBTitle: structure of the crb2-brct2 domain complex with phosphopeptide.
69 c2ebwA_
not modelled
97.9
20
PDB header: transferaseChain: A: PDB Molecule: dna repair protein rev1;
PDBTitle: solution structure of the brct domain from human dna repair2 protein rev1
70 c1vs0A_
not modelled
97.9
20
PDB header: ligaseChain: A: PDB Molecule: putative dna ligase-like protein rv0938/mt0965;
PDBTitle: crystal structure of the ligase domain from m. tuberculosis ligd at2 2.4a
71 c1a0iA_
not modelled
97.9
14
PDB header: ligaseChain: A: PDB Molecule: dna ligase;
PDBTitle: atp-dependent dna ligase from bacteriophage t7 complex with2 atp
72 c3ueoB_
not modelled
97.8
19
PDB header: peptide binding proteinChain: B: PDB Molecule: dna topoisomerase 2-binding protein 1;
PDBTitle: crystal structure of topbp1 brct4/5 domains in complex with a phospho-2 peptide
73 d1l0ba1
not modelled
97.8
15
Fold: BRCT domainSuperfamily: BRCT domainFamily: BRCT domain
74 c5d1pB_
not modelled
97.8
22
PDB header: ligaseChain: B: PDB Molecule: atp-dependent rna ligase;
PDBTitle: archaeal atp-dependent rna ligase - form 2
75 d1a0ia2
not modelled
97.8
16
Fold: ATP-graspSuperfamily: DNA ligase/mRNA capping enzyme, catalytic domainFamily: ATP-dependent DNA ligase catalytic domain
76 d1pzna1
not modelled
97.8
31
Fold: SAM domain-likeSuperfamily: Rad51 N-terminal domain-likeFamily: DNA repair protein Rad51, N-terminal domain
77 c3l40A_
not modelled
97.7
17
PDB header: cell cycleChain: A: PDB Molecule: brct-containing protein 1;
PDBTitle: crystal structure of s. pombe brc1 brct5-brct6 domains
78 c2zj8A_
not modelled
97.7
31
PDB header: hydrolaseChain: A: PDB Molecule: putative ski2-type helicase;
PDBTitle: archaeal dna helicase hjm apo state in form 2
79 c2r1zB_
not modelled
97.7
20
PDB header: antitumor proteinChain: B: PDB Molecule: brca1-associated ring domain protein 1;
PDBTitle: crystal structure of the bard1 brct repeat
80 c3al3A_
not modelled
97.7
21
PDB header: dna binding protein/protein bindingChain: A: PDB Molecule: dna topoisomerase 2-binding protein 1;
PDBTitle: crystal structure of topbp1 brct7/8-bach1 peptide complex
81 c4id3B_
not modelled
97.7
19
PDB header: protein bindingChain: B: PDB Molecule: dna repair protein rev1;
PDBTitle: crystal structure of the brct domain of s. cerevisiae rev1
82 d1t15a1
not modelled
97.6
16
Fold: BRCT domainSuperfamily: BRCT domainFamily: BRCT domain
83 c1y98A_
not modelled
97.6
13
PDB header: antitumor proteinChain: A: PDB Molecule: breast cancer type 1 susceptibility protein;
PDBTitle: structure of the brct repeats of brca1 bound to a ctip2 phosphopeptide.
84 c5covA_
not modelled
97.5
8
PDB header: ligaseChain: A: PDB Molecule: naegleria gruberi rna ligase;
PDBTitle: structure and mechanism of a eukaryal nick-sealing rna ligase k170m+mn
85 d1szpa1
not modelled
97.5
17
Fold: SAM domain-likeSuperfamily: Rad51 N-terminal domain-likeFamily: DNA repair protein Rad51, N-terminal domain
86 c1l0bA_
not modelled
97.5
15
PDB header: unknown functionChain: A: PDB Molecule: brca1;
PDBTitle: crystal structure of rat brca1 tandem-brct region
87 c3auoB_
not modelled
97.4
23
PDB header: transferase/dnaChain: B: PDB Molecule: dna polymerase beta family (x family);
PDBTitle: dna polymerase x from thermus thermophilus hb8 ternary complex with 1-2 nt gapped dna and ddgtp
88 c2azmB_
not modelled
97.3
21
PDB header: cell cycleChain: B: PDB Molecule: mediator of dna damage checkpoint protein 1;
PDBTitle: crystal structure of the mdc1 brct repeat in complex with2 the histone tail of gamma-h2ax
89 d1p16a2
not modelled
97.3
19
Fold: ATP-graspSuperfamily: DNA ligase/mRNA capping enzyme, catalytic domainFamily: mRNA capping enzyme
90 c3kyhC_
not modelled
97.2
15
PDB header: protein bindingChain: C: PDB Molecule: mrna-capping enzyme subunit alpha;
PDBTitle: saccharomyces cerevisiae cet1-ceg1 capping apparatus
91 d1ckma2
not modelled
97.2
16
Fold: ATP-graspSuperfamily: DNA ligase/mRNA capping enzyme, catalytic domainFamily: mRNA capping enzyme
92 c1z56C_
not modelled
97.2
21
PDB header: ligaseChain: C: PDB Molecule: dna ligase iv;
PDBTitle: co-crystal structure of lif1p-lig4p
93 c2coeA_
not modelled
97.1
16
PDB header: transferaseChain: A: PDB Molecule: deoxynucleotidyltransferase, terminal variant;
PDBTitle: solution structure of brct domain of terminal2 deoxynucleotidyltransferase
94 c3t1nA_
not modelled
97.1
18
PDB header: cell cycle/peptideChain: A: PDB Molecule: microcephalin;
PDBTitle: structure of human microcephalin (mcph1) tandem brct domains in2 complex with a cdc27 phosphopeptide
95 c1cknA_
not modelled
97.1
15
PDB header: capping enzymeChain: A: PDB Molecule: mrna capping enzyme;
PDBTitle: structure of guanylylated mrna capping enzyme complexed2 with gtp
96 c1p16A_
not modelled
97.1
17
PDB header: transferaseChain: A: PDB Molecule: mrna capping enzyme alpha subunit;
PDBTitle: structure of an mrna capping enzyme bound to the2 phosphorylated carboxyl-terminal domain of rna polymerase3 ii
97 c3s24F_
not modelled
97.0
16
PDB header: hydrolase, transferaseChain: F: PDB Molecule: mrna-capping enzyme;
PDBTitle: crystal structure of human mrna guanylyltransferase
98 d1b22a_
not modelled
97.0
18
Fold: SAM domain-likeSuperfamily: Rad51 N-terminal domain-likeFamily: DNA repair protein Rad51, N-terminal domain
99 c1b22A_
not modelled
97.0
18
PDB header: dna binding proteinChain: A: PDB Molecule: dna repair protein rad51;
PDBTitle: rad51 (n-terminal domain)
100 c1ixrA_
not modelled
97.0
25
PDB header: hydrolaseChain: A: PDB Molecule: holliday junction dna helicase ruva;
PDBTitle: ruva-ruvb complex
101 c2jw5A_
not modelled
97.0
16
PDB header: protein bindingChain: A: PDB Molecule: dna polymerase lambda;
PDBTitle: polymerase lambda brct domain
102 c3vnnA_
not modelled
96.8
15
PDB header: ligaseChain: A: PDB Molecule: dna ligase 4;
PDBTitle: crystal structure of a sub-domain of the nucleotidyltransferase2 (adenylation) domain of human dna ligase iv
103 c2hvsA_
not modelled
96.7
15
PDB header: ligase/dna/rnaChain: A: PDB Molecule: t4 rna ligase 2;
PDBTitle: structure of t4 rna ligase 2 with nicked 5'-adenylated nucleic acid2 duplex containing a 2'-deoxyribonucleotide at the nick
104 d1ixra1
not modelled
96.5
25
Fold: SAM domain-likeSuperfamily: RuvA domain 2-likeFamily: DNA helicase RuvA subunit, middle domain
105 c1hjpA_
not modelled
96.5
22
PDB header: dna recombinationChain: A: PDB Molecule: ruva;
PDBTitle: holliday junction binding protein ruva from e. coli
106 d1cuka2
not modelled
96.5
20
Fold: SAM domain-likeSuperfamily: RuvA domain 2-likeFamily: DNA helicase RuvA subunit, middle domain
107 c2h5xA_
not modelled
96.4
25
PDB header: dna binding proteinChain: A: PDB Molecule: holliday junction atp-dependent dna helicase ruva;
PDBTitle: ruva from mycobacterium tuberculosis
108 c1ixrB_
not modelled
96.3
28
PDB header: hydrolaseChain: B: PDB Molecule: holliday junction dna helicase ruva;
PDBTitle: ruva-ruvb complex
109 d1szpb1
not modelled
96.3
16
Fold: SAM domain-likeSuperfamily: Rad51 N-terminal domain-likeFamily: DNA repair protein Rad51, N-terminal domain
110 c2ihmA_
not modelled
96.2
13
PDB header: transferase/dnaChain: A: PDB Molecule: dna polymerase mu;
PDBTitle: polymerase mu in ternary complex with gapped 11mer dna duplex and2 bound incoming nucleotide
111 c2w9mB_
not modelled
96.2
26
PDB header: dna replicationChain: B: PDB Molecule: polymerase x;
PDBTitle: structure of family x dna polymerase from deinococcus2 radiodurans
112 c2csdB_
not modelled
96.1
20
PDB header: isomeraseChain: B: PDB Molecule: topoisomerase v;
PDBTitle: crystal structure of topoisomerase v (61 kda fragment)
113 c2ep8A_
not modelled
95.6
10
PDB header: cell cycleChain: A: PDB Molecule: pescadillo homolog 1;
PDBTitle: solution structure of the brct domain from human pescadillo2 homolog 1
114 c2dunA_
not modelled
95.5
15
PDB header: transferaseChain: A: PDB Molecule: dna polymerase mu;
PDBTitle: solution structure of brct domain of dna polymerase mu
115 d1bvsa2
not modelled
95.4
29
Fold: SAM domain-likeSuperfamily: RuvA domain 2-likeFamily: DNA helicase RuvA subunit, middle domain
116 d1l0ba2
not modelled
95.4
17
Fold: BRCT domainSuperfamily: BRCT domainFamily: BRCT domain
117 d1xdna_
not modelled
95.3
14
Fold: ATP-graspSuperfamily: DNA ligase/mRNA capping enzyme, catalytic domainFamily: RNA ligase
118 c1d8lA_
not modelled
95.3
20
PDB header: gene regulationChain: A: PDB Molecule: protein (holliday junction dna helicase ruva);
PDBTitle: e. coli holliday junction binding protein ruva nh2 region lacking2 domain iii
119 c8iczA_
not modelled
95.3
20
PDB header: transferase/dnaChain: A: PDB Molecule: protein (dna polymerase beta (e.c.2.7.7.7));
PDBTitle: dna polymerase beta (pol b) (e.c.2.7.7.7) complexed with2 seven base pairs of dna; soaked in the presence of of datp3 (1 millimolar), mncl2 (5 millimolar), and lithium sulfate4 (75 millimolar)
120 d1s68a_
not modelled
95.0
21
Fold: ATP-graspSuperfamily: DNA ligase/mRNA capping enzyme, catalytic domainFamily: RNA ligase