The name of this superfamily has been modified since the most recent official CATH+ release (v4_2_0). At the point of the last release, this superfamily was named:

"
Helix-loop-helix DNA-binding domain
".

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.

Browse Functional Families

ID Function Family (FunFam) Name Total Sequences Enzyme? Structure? Structural Representative PDB Sites? Alignment Diversity (0-100)
5375
20526
3D
1nkpA00 - 86.2
5790
4242
EC
- - 93.2
5646
3742
EC
- - 92.5
5627
2770 - - 88.2
5769
2492
3D
2mh3A00 - 96.3
5651
2351
3D
2ql2B00 - 89.7
5374
2308 - - 89.9
5786
1957
EC
3D
4f3lA01 - 97.8
5701
1723 - - 93.4
5791
1589
EC
- - 80.3
5838
1434
3D
3u5vA01 - 88.5
5683
1425
3D
2ypaA00 - 96.9
5634
BHLH123
1354 - - 83.8
5399
1297 - - 80.9
5764
1282
EC
- - 89.6
5747
1115
EC
3D
1uklC00 - 92.0
5754
1047 - - 90.5
5631
1035
3D
1mdyA00 - 87.8
5660
976 - - 90.7
5610
952
3D
4athA00 - 87.0
5643
816 - - 99.5
5795
780 - - 95.7
5777
744
EC
- - 93.8
5761
656 - - 90.1
5734
632
3D
1an2A00 - 89.0
5593
620 - - 89.8
5538
609 - - 94.8
5592
606 - - 82.1
5625
588
3D
4ayaA00 - 87.8
5652
562
EC
- - 82.9
5641
514 - - 89.4
5563
507 - - 87.7
5525
437
EC
3D
1an4A00 - 94.8
5535
407
EC
- - 77.3
5750
402 - - 88.1
5572
399 - - 83.3
549
398 - - 54.8
5566
312 - - 78.6
5395
Basic helix-loop-helix
294 - - 69.2
5726
288
EC
- - 96.3
5822
254 - - 90.1
5832
244 - - 90.6
5319
234 - - 53.2
5443
214 - - 94.3
5475
204 - - 72.9
5615
202 - - 84.1
583
188 - - 67.5
5573
184 - - 59.6
5421
182 - - 50.7
5759
179 - - 73.6
939
166 - - 10.3
5665
163 - - 57.2
5297
162
3D
1nlwA00 - 70.3
3934
160 - - 54.2
5550
158 - - 59.8
5556
154 - - 82.1
5263
149 - - 56.2
5275
128 - - 81.3
1671
112
EC
- - 38.9
2936
107 - - 43.0
5485
101 - - 50.5
5725
99 - - 92.9
5668
98 - - 72.4
5338
98 - - 37.5
5728
98 - - 85.6
224
94 - - 4.7
5129
92
3D
2lfhA00 - 30.5
5729
87 - - 70.5
328
81 - - 25.7
5508
75 - - 44.0
5405
70 - - 64.7
5423
67 - - 33.1
5291
66 - - 42.4
5704
60 - - 49.0
3782
46 - - 83.1
1070
46 - - 4.8
5298
45 - - 74.6
162
40 - - 44.7
4017
37 - - 15.7
1739
36 - - 0.0
2611
31 - - 9.9
4472
30 - - 17.6
5542
28 - - 43.1
2846
27 - - 32.9
5130
26 - - 46.9
5428
25 - - 58.6
3510
24 - - 61.7
1801
23 - - 10.6
5491
22 - - 39.9
3326
22 - - 35.7
4624
20 - - 31.0
408
20 - - 22.9
1846
17 - - 25.5
5512
16 - - 58.9
54
16 - - 15.4
805
14 - - 17.8
5732
14 - - 46.5
440
12 - - 12.0
144
11 - - 21.3
1271
9 - - 22.1
586
8 - - 4.6
5499
7 - - 44.1
193
7 - - 7.7
3388
BHLH073/ALCATRAZ
7 - - 5.3
5140
7 - - 34.4
1069
6 - - 10.8
4890
6 - - 2.5
3061
6 - - 17.5
2809
6 - - 19.1
5208
6 - - 2.6
2440
5 - - 0.0
2185
5 - - 7.0
3739
5 - - 13.7
4913
5 - - 34.7
218
5 - - 0.0
487
5 - - 0.0
2603
5 - - 0.0
2729
5 - - 21.3
411
5 - - 0.0
3503
4 - - 9.8
3706
4 - - 0.0
79
4 - - 20.0
318
BHLH
4 - - 29.9
5595
4 - - 17.0
741
3 - - 7.8
2311
3 - - 27.2
141
3 - - 0.0
581
3 - - 11.2
1750
2 - - 0.0
3195
2 - - 8.5
2622
2 - - 10.2
2045
2 - - 15.7
2887
2 - - 0.0
2730
2 - - 0.0
1557
BHLH
2 - - 2.9
3259
1 - - 0.0
5858
1 - - 0.0
4729
1 - - 0.0
3983
1 - - 0.0
509
1 - - 0.0
1396
1 - - 0.0
598
1 - - 0.0