Table 4 Summary of the within-cluster Euclidean distance and the center-to-center Euclidean distance for 18 protein fragment clusters found by the SOM alone

1

129.1

38.9

220.9

270.9

302.4

202.7

175.7

161.9

277.2

295.9

381.4

233.8

307.6

181.6

234.8

223.0

263.6

250.5

164.4

0

2

242.7

39.4

304.8

198.1

265.0

192.0

201.2

217.5

241.3

237.1

309.9

244.0

247.9

259.6

165.5

169.5

189.0

273.5

0

3

265.8

29.8

180.3

276.0

168.3

177.9

169.5

266.4

237.3

256.2

397.2

185.0

218.6

156.4

298.5

224.5

280.4

0

4

327.1

41.4

261.7

275.8

265.8

241.5

298.8

273.8

250.9

297.5

321.2

266.9

182.9

215.2

250.4

156.8

0

5

251.9

39.6

206.8

223.7

150.2

207.1

300.9

258.4

217.8

274.8

400.7

227.2

243.6

167.1

227.6

0

6

260.7

29.2

202.0

158.5

235.8

137.3

248.4

225.3

258.8

205.8

304.7

300.23

235.0

297.0

0

7

75.7

20.5

191.9

323.9

243.6

280.5

238.4

199.0

292.7

346.6

463.2

247.1

291.3

0

8

291.4

30.8

250.4

196.2

144.8

203.1

245.8

322.9

245.4

226.8

265.6

272.7

0

9

329.1

27.9

275.3

251.6

219.3

200.6

197.1

263.8

278.1

272.5

342.3

0

10

157.9

27.4

364.8

240.4

310.3

262.0

292.9

329.8

266.4

234.3

0

11

113.8

45.8

244.9

156.7

190.2

167.5

224.8

213.6

254.9

0

12

283.0

32.4

215.7

205.4

197.6

191.5

239.0

299.2

0

13

170.3

29.5

277.6

272.6

322.4

252.2

188.8

0

14

277.8

32.6

238.5

179.7

239.8

99.5

0

15

111.2

33.1

210.6

59.5

161.6

0

16

114.05

38.4

219.4

146.8

0

17

36.2

24.8

228.6

0

18

158.5

37.4

0