1 | #include "muscle.h" |
---|
2 | #include <math.h> |
---|
3 | #include <stdio.h> // for sprintf |
---|
4 | #include "pwpath.h" |
---|
5 | #include "profile.h" |
---|
6 | #include "gapscoredimer.h" |
---|
7 | |
---|
8 | #define TRACE 0 |
---|
9 | |
---|
10 | static SCORE TraceBackDimer( const SCORE *DPM_, const SCORE *DPD_, const SCORE *DPI_, |
---|
11 | const char *TBM_, const char *TBD_, const char *TBI_, |
---|
12 | unsigned uLengthA, unsigned uLengthB, PWPath &Path); |
---|
13 | |
---|
14 | static const char *LocalScoreToStr(SCORE s) |
---|
15 | { |
---|
16 | static char str[16]; |
---|
17 | if (MINUS_INFINITY == s) |
---|
18 | return " *"; |
---|
19 | sprintf(str, "%6.3g", s); |
---|
20 | return str; |
---|
21 | } |
---|
22 | |
---|
23 | #if TRACE |
---|
24 | static void ListDP(const SCORE *DPM_, const ProfPos *PA, const ProfPos *PB, |
---|
25 | unsigned uPrefixCountA, unsigned uPrefixCountB) |
---|
26 | { |
---|
27 | Log(" "); |
---|
28 | for (unsigned uPrefixLengthB = 0; uPrefixLengthB < uPrefixCountB; ++uPrefixLengthB) |
---|
29 | { |
---|
30 | char c = ' '; |
---|
31 | if (uPrefixLengthB > 0) |
---|
32 | c = ConsensusChar(PB[uPrefixLengthB - 1]); |
---|
33 | Log(" %4u:%c", uPrefixLengthB, c); |
---|
34 | } |
---|
35 | Log("\n"); |
---|
36 | for (unsigned uPrefixLengthA = 0; uPrefixLengthA < uPrefixCountA; ++uPrefixLengthA) |
---|
37 | { |
---|
38 | char c = ' '; |
---|
39 | if (uPrefixLengthA > 0) |
---|
40 | c = ConsensusChar(PA[uPrefixLengthA - 1]); |
---|
41 | Log("%4u:%c ", uPrefixLengthA, c); |
---|
42 | for (unsigned uPrefixLengthB = 0; uPrefixLengthB < uPrefixCountB; ++uPrefixLengthB) |
---|
43 | Log(" %s", LocalScoreToStr(DPM(uPrefixLengthA, uPrefixLengthB))); |
---|
44 | Log("\n"); |
---|
45 | } |
---|
46 | } |
---|
47 | |
---|
48 | static void ListTB(const char *TBM_, const ProfPos *PA, const ProfPos *PB, |
---|
49 | unsigned uPrefixCountA, unsigned uPrefixCountB) |
---|
50 | { |
---|
51 | Log(" "); |
---|
52 | for (unsigned uPrefixLengthB = 0; uPrefixLengthB < uPrefixCountB; ++uPrefixLengthB) |
---|
53 | Log("%2d", uPrefixLengthB); |
---|
54 | Log("\n"); |
---|
55 | Log(" "); |
---|
56 | for (unsigned uPrefixLengthB = 0; uPrefixLengthB < uPrefixCountB; ++uPrefixLengthB) |
---|
57 | { |
---|
58 | char c = ' '; |
---|
59 | if (uPrefixLengthB > 0) |
---|
60 | c = ConsensusChar(PB[uPrefixLengthB - 1]); |
---|
61 | Log(" %c", c); |
---|
62 | } |
---|
63 | Log("\n"); |
---|
64 | for (unsigned uPrefixLengthA = 0; uPrefixLengthA < uPrefixCountA; ++uPrefixLengthA) |
---|
65 | { |
---|
66 | char c = ' '; |
---|
67 | if (uPrefixLengthA > 0) |
---|
68 | c = ConsensusChar(PA[uPrefixLengthA - 1]); |
---|
69 | Log("%4u:%c ", uPrefixLengthA, c); |
---|
70 | for (unsigned uPrefixLengthB = 0; uPrefixLengthB < uPrefixCountB; ++uPrefixLengthB) |
---|
71 | Log(" %c", TBM(uPrefixLengthA, uPrefixLengthB)); |
---|
72 | Log("\n"); |
---|
73 | } |
---|
74 | } |
---|
75 | #endif // TRACE |
---|
76 | |
---|
77 | static ProfPos PPTerm; |
---|
78 | static bool InitializePPTerm() |
---|
79 | { |
---|
80 | PPTerm.m_bAllGaps = false; |
---|
81 | PPTerm.m_LL = 1; |
---|
82 | PPTerm.m_LG = 0; |
---|
83 | PPTerm.m_GL = 0; |
---|
84 | PPTerm.m_GG = 0; |
---|
85 | PPTerm.m_fOcc = 1; |
---|
86 | return true; |
---|
87 | } |
---|
88 | static bool PPTermInitialized = InitializePPTerm(); |
---|
89 | |
---|
90 | static SCORE ScoreProfPosDimerLE(const ProfPos &PPA, const ProfPos &PPB) |
---|
91 | { |
---|
92 | SCORE Score = 0; |
---|
93 | for (unsigned n = 0; n < 20; ++n) |
---|
94 | { |
---|
95 | const unsigned uLetter = PPA.m_uSortOrder[n]; |
---|
96 | const FCOUNT fcLetter = PPA.m_fcCounts[uLetter]; |
---|
97 | if (0 == fcLetter) |
---|
98 | break; |
---|
99 | Score += fcLetter*PPB.m_AAScores[uLetter]; |
---|
100 | } |
---|
101 | if (0 == Score) |
---|
102 | return -2.5; |
---|
103 | SCORE logScore = logf(Score); |
---|
104 | return (SCORE) (logScore*(PPA.m_fOcc * PPB.m_fOcc)); |
---|
105 | } |
---|
106 | |
---|
107 | static SCORE ScoreProfPosDimerPSP(const ProfPos &PPA, const ProfPos &PPB) |
---|
108 | { |
---|
109 | SCORE Score = 0; |
---|
110 | for (unsigned n = 0; n < 20; ++n) |
---|
111 | { |
---|
112 | const unsigned uLetter = PPA.m_uSortOrder[n]; |
---|
113 | const FCOUNT fcLetter = PPA.m_fcCounts[uLetter]; |
---|
114 | if (0 == fcLetter) |
---|
115 | break; |
---|
116 | Score += fcLetter*PPB.m_AAScores[uLetter]; |
---|
117 | } |
---|
118 | return Score; |
---|
119 | } |
---|
120 | |
---|
121 | static SCORE ScoreProfPosDimer(const ProfPos &PPA, const ProfPos &PPB) |
---|
122 | { |
---|
123 | switch (g_PPScore) |
---|
124 | { |
---|
125 | case PPSCORE_LE: |
---|
126 | return ScoreProfPosDimerLE(PPA, PPB); |
---|
127 | |
---|
128 | case PPSCORE_SP: |
---|
129 | case PPSCORE_SV: |
---|
130 | return ScoreProfPosDimerPSP(PPA, PPB); |
---|
131 | } |
---|
132 | Quit("Invalid g_PPScore"); |
---|
133 | return 0; |
---|
134 | } |
---|
135 | |
---|
136 | // Global alignment dynamic programming |
---|
137 | // This variant optimizes the profile-profile SP score under the |
---|
138 | // dimer approximation. |
---|
139 | SCORE GlobalAlignDimer(const ProfPos *PA, unsigned uLengthA, const ProfPos *PB, |
---|
140 | unsigned uLengthB, PWPath &Path) |
---|
141 | { |
---|
142 | assert(uLengthB > 0 && uLengthA > 0); |
---|
143 | |
---|
144 | const unsigned uPrefixCountA = uLengthA + 1; |
---|
145 | const unsigned uPrefixCountB = uLengthB + 1; |
---|
146 | |
---|
147 | // Allocate DP matrices |
---|
148 | const size_t LM = uPrefixCountA*uPrefixCountB; |
---|
149 | SCORE *DPM_ = new SCORE[LM]; |
---|
150 | SCORE *DPD_ = new SCORE[LM]; |
---|
151 | SCORE *DPI_ = new SCORE[LM]; |
---|
152 | |
---|
153 | char *TBM_ = new char[LM]; |
---|
154 | char *TBD_ = new char[LM]; |
---|
155 | char *TBI_ = new char[LM]; |
---|
156 | |
---|
157 | DPM(0, 0) = 0; |
---|
158 | DPD(0, 0) = MINUS_INFINITY; |
---|
159 | DPI(0, 0) = MINUS_INFINITY; |
---|
160 | |
---|
161 | TBM(0, 0) = 'S'; |
---|
162 | TBD(0, 0) = '?'; |
---|
163 | TBI(0, 0) = '?'; |
---|
164 | |
---|
165 | DPM(1, 0) = MINUS_INFINITY; |
---|
166 | DPD(1, 0) = GapScoreMD(PA[0], PPTerm); |
---|
167 | DPI(1, 0) = MINUS_INFINITY; |
---|
168 | |
---|
169 | TBM(1, 0) = '?'; |
---|
170 | TBD(1, 0) = 'S'; |
---|
171 | TBI(1, 0) = '?'; |
---|
172 | |
---|
173 | DPM(0, 1) = MINUS_INFINITY; |
---|
174 | DPD(0, 1) = MINUS_INFINITY; |
---|
175 | DPI(0, 1) = GapScoreMI(PPTerm, PB[0]); |
---|
176 | |
---|
177 | TBM(0, 1) = '?'; |
---|
178 | TBD(0, 1) = '?'; |
---|
179 | TBI(0, 1) = 'S'; |
---|
180 | |
---|
181 | // Empty prefix of B is special case |
---|
182 | for (unsigned uPrefixLengthA = 2; uPrefixLengthA < uPrefixCountA; ++uPrefixLengthA) |
---|
183 | { |
---|
184 | // M=LetterA+LetterB, impossible with empty prefix |
---|
185 | DPM(uPrefixLengthA, 0) = MINUS_INFINITY; |
---|
186 | TBM(uPrefixLengthA, 0) = '?'; |
---|
187 | |
---|
188 | // D=LetterA+GapB |
---|
189 | DPD(uPrefixLengthA, 0) = DPD(uPrefixLengthA - 1, 0) + |
---|
190 | GapScoreDD(PA[uPrefixLengthA - 1], PPTerm); |
---|
191 | TBD(uPrefixLengthA, 0) = 'D'; |
---|
192 | |
---|
193 | // I=GapA+LetterB, impossible with empty prefix |
---|
194 | DPI(uPrefixLengthA, 0) = MINUS_INFINITY; |
---|
195 | TBI(uPrefixLengthA, 0) = '?'; |
---|
196 | } |
---|
197 | |
---|
198 | // Empty prefix of A is special case |
---|
199 | for (unsigned uPrefixLengthB = 2; uPrefixLengthB < uPrefixCountB; ++uPrefixLengthB) |
---|
200 | { |
---|
201 | // M=LetterA+LetterB, impossible with empty prefix |
---|
202 | DPM(0, uPrefixLengthB) = MINUS_INFINITY; |
---|
203 | TBM(0, uPrefixLengthB) = '?'; |
---|
204 | |
---|
205 | // D=LetterA+GapB, impossible with empty prefix |
---|
206 | DPD(0, uPrefixLengthB) = MINUS_INFINITY; |
---|
207 | TBD(0, uPrefixLengthB) = '?'; |
---|
208 | |
---|
209 | // I=GapA+LetterB |
---|
210 | DPI(0, uPrefixLengthB) = DPI(0, uPrefixLengthB - 1) + |
---|
211 | GapScoreII(PPTerm, PB[uPrefixLengthB - 1]); |
---|
212 | TBI(0, uPrefixLengthB) = 'I'; |
---|
213 | } |
---|
214 | |
---|
215 | // ============ |
---|
216 | // Main DP loop |
---|
217 | // ============ |
---|
218 | for (unsigned uPrefixLengthB = 1; uPrefixLengthB < uPrefixCountB; ++uPrefixLengthB) |
---|
219 | { |
---|
220 | const ProfPos &PPB = PB[uPrefixLengthB - 1]; |
---|
221 | for (unsigned uPrefixLengthA = 1; uPrefixLengthA < uPrefixCountA; ++uPrefixLengthA) |
---|
222 | { |
---|
223 | const ProfPos &PPA = PA[uPrefixLengthA - 1]; |
---|
224 | { |
---|
225 | // Match M=LetterA+LetterB |
---|
226 | SCORE scoreLL = ScoreProfPosDimer(PPA, PPB); |
---|
227 | |
---|
228 | SCORE scoreMM = DPM(uPrefixLengthA-1, uPrefixLengthB-1) + GapScoreMM(PPA, PPB); |
---|
229 | SCORE scoreDM = DPD(uPrefixLengthA-1, uPrefixLengthB-1) + GapScoreDM(PPA, PPB); |
---|
230 | SCORE scoreIM = DPI(uPrefixLengthA-1, uPrefixLengthB-1) + GapScoreIM(PPA, PPB); |
---|
231 | |
---|
232 | SCORE scoreBest = scoreMM; |
---|
233 | char c = 'M'; |
---|
234 | if (scoreDM > scoreBest) |
---|
235 | { |
---|
236 | scoreBest = scoreDM; |
---|
237 | c = 'D'; |
---|
238 | } |
---|
239 | if (scoreIM > scoreBest) |
---|
240 | { |
---|
241 | scoreBest = scoreIM; |
---|
242 | c = 'I'; |
---|
243 | } |
---|
244 | |
---|
245 | DPM(uPrefixLengthA, uPrefixLengthB) = scoreBest + scoreLL; |
---|
246 | TBM(uPrefixLengthA, uPrefixLengthB) = c; |
---|
247 | } |
---|
248 | { |
---|
249 | // Delete D=LetterA+GapB |
---|
250 | SCORE scoreMD = DPM(uPrefixLengthA-1, uPrefixLengthB) + GapScoreMD(PPA, PPB); |
---|
251 | SCORE scoreDD = DPD(uPrefixLengthA-1, uPrefixLengthB) + GapScoreDD(PPA, PPB); |
---|
252 | SCORE scoreID = DPI(uPrefixLengthA-1, uPrefixLengthB) + GapScoreID(PPA, PPB); |
---|
253 | |
---|
254 | SCORE scoreBest = scoreMD; |
---|
255 | char c = 'M'; |
---|
256 | if (scoreDD > scoreBest) |
---|
257 | { |
---|
258 | scoreBest = scoreDD; |
---|
259 | c = 'D'; |
---|
260 | } |
---|
261 | if (scoreID > scoreBest) |
---|
262 | { |
---|
263 | scoreBest = scoreID; |
---|
264 | c = 'I'; |
---|
265 | } |
---|
266 | |
---|
267 | DPD(uPrefixLengthA, uPrefixLengthB) = scoreBest; |
---|
268 | TBD(uPrefixLengthA, uPrefixLengthB) = c; |
---|
269 | } |
---|
270 | { |
---|
271 | // Insert I=GapA+LetterB |
---|
272 | SCORE scoreMI = DPM(uPrefixLengthA, uPrefixLengthB-1) + GapScoreMI(PPA, PPB); |
---|
273 | SCORE scoreDI = DPD(uPrefixLengthA, uPrefixLengthB-1) + GapScoreDI(PPA, PPB); |
---|
274 | SCORE scoreII = DPI(uPrefixLengthA, uPrefixLengthB-1) + GapScoreII(PPA, PPB); |
---|
275 | |
---|
276 | SCORE scoreBest = scoreMI; |
---|
277 | char c = 'M'; |
---|
278 | if (scoreDI > scoreBest) |
---|
279 | { |
---|
280 | scoreBest = scoreDI; |
---|
281 | c = 'D'; |
---|
282 | } |
---|
283 | if (scoreII > scoreBest) |
---|
284 | { |
---|
285 | scoreBest = scoreII; |
---|
286 | c = 'I'; |
---|
287 | } |
---|
288 | |
---|
289 | DPI(uPrefixLengthA, uPrefixLengthB) = scoreBest; |
---|
290 | TBI(uPrefixLengthA, uPrefixLengthB) = c; |
---|
291 | } |
---|
292 | } |
---|
293 | } |
---|
294 | |
---|
295 | #if TRACE |
---|
296 | Log("DPM:\n"); |
---|
297 | ListDP(DPM_, PA, PB, uPrefixCountA, uPrefixCountB); |
---|
298 | Log("DPD:\n"); |
---|
299 | ListDP(DPD_, PA, PB, uPrefixCountA, uPrefixCountB); |
---|
300 | Log("DPI:\n"); |
---|
301 | ListDP(DPI_, PA, PB, uPrefixCountA, uPrefixCountB); |
---|
302 | Log("TBM:\n"); |
---|
303 | ListTB(TBM_, PA, PB, uPrefixCountA, uPrefixCountB); |
---|
304 | Log("TBD:\n"); |
---|
305 | ListTB(TBD_, PA, PB, uPrefixCountA, uPrefixCountB); |
---|
306 | Log("TBI:\n"); |
---|
307 | ListTB(TBI_, PA, PB, uPrefixCountA, uPrefixCountB); |
---|
308 | #endif |
---|
309 | |
---|
310 | SCORE Score = TraceBackDimer(DPM_, DPD_, DPI_, TBM_, TBD_, TBI_, |
---|
311 | uLengthA, uLengthB, Path); |
---|
312 | |
---|
313 | #if TRACE |
---|
314 | Log("GlobalAlignDimer score = %.3g\n", Score); |
---|
315 | #endif |
---|
316 | |
---|
317 | delete[] DPM_; |
---|
318 | delete[] DPD_; |
---|
319 | delete[] DPI_; |
---|
320 | |
---|
321 | delete[] TBM_; |
---|
322 | delete[] TBD_; |
---|
323 | delete[] TBI_; |
---|
324 | |
---|
325 | return Score; |
---|
326 | } |
---|
327 | |
---|
328 | static SCORE TraceBackDimer( const SCORE *DPM_, const SCORE *DPD_, const SCORE *DPI_, |
---|
329 | const char *TBM_, const char *TBD_, const char *TBI_, |
---|
330 | unsigned uLengthA, unsigned uLengthB, PWPath &Path) |
---|
331 | { |
---|
332 | const unsigned uPrefixCountA = uLengthA + 1; |
---|
333 | |
---|
334 | unsigned uPrefixLengthA = uLengthA; |
---|
335 | unsigned uPrefixLengthB = uLengthB; |
---|
336 | |
---|
337 | char cEdge = 'M'; |
---|
338 | SCORE scoreMax = DPM(uLengthA, uLengthB); |
---|
339 | if (DPD(uLengthA, uLengthB) > scoreMax) |
---|
340 | { |
---|
341 | scoreMax = DPD(uLengthA, uLengthB); |
---|
342 | cEdge = 'D'; |
---|
343 | } |
---|
344 | if (DPI(uLengthA, uLengthB) > scoreMax) |
---|
345 | { |
---|
346 | scoreMax = DPI(uLengthA, uLengthB); |
---|
347 | cEdge = 'I'; |
---|
348 | } |
---|
349 | |
---|
350 | for (;;) |
---|
351 | { |
---|
352 | if (0 == uPrefixLengthA && 0 == uPrefixLengthB) |
---|
353 | break; |
---|
354 | |
---|
355 | PWEdge Edge; |
---|
356 | Edge.cType = cEdge; |
---|
357 | Edge.uPrefixLengthA = uPrefixLengthA; |
---|
358 | Edge.uPrefixLengthB = uPrefixLengthB; |
---|
359 | Path.PrependEdge(Edge); |
---|
360 | |
---|
361 | #if TRACE |
---|
362 | Log("PLA=%u PLB=%u Edge=%c\n", uPrefixLengthA, uPrefixLengthB, cEdge); |
---|
363 | #endif |
---|
364 | switch (cEdge) |
---|
365 | { |
---|
366 | case 'M': |
---|
367 | assert(uPrefixLengthA > 0 && uPrefixLengthB > 0); |
---|
368 | cEdge = TBM(uPrefixLengthA, uPrefixLengthB); |
---|
369 | --uPrefixLengthA; |
---|
370 | --uPrefixLengthB; |
---|
371 | break; |
---|
372 | case 'D': |
---|
373 | assert(uPrefixLengthA > 0); |
---|
374 | cEdge = TBD(uPrefixLengthA, uPrefixLengthB); |
---|
375 | --uPrefixLengthA; |
---|
376 | break; |
---|
377 | case 'I': |
---|
378 | assert(uPrefixLengthB > 0); |
---|
379 | cEdge = TBI(uPrefixLengthA, uPrefixLengthB); |
---|
380 | --uPrefixLengthB; |
---|
381 | break; |
---|
382 | default: |
---|
383 | Quit("Invalid edge PLA=%u PLB=%u %c", uPrefixLengthA, uPrefixLengthB, cEdge); |
---|
384 | } |
---|
385 | } |
---|
386 | #if TRACE |
---|
387 | Path.LogMe(); |
---|
388 | #endif |
---|
389 | return scoreMax; |
---|
390 | } |
---|