J. Comput. Biol. - Fast matching of transcription factor motifs using generalized position weight matrix models.

Tópicos

{ state(1844) use(1261) util(961) }
{ sequenc(1873) structur(1644) protein(1328) }
{ result(1111) use(1088) new(759) }
{ problem(2511) optim(1539) algorithm(950) }
{ featur(1941) imag(1645) propos(1176) }
{ model(3480) simul(1196) paramet(876) }
{ age(1611) year(1155) adult(843) }
{ gene(2352) biolog(1181) express(1162) }
{ data(2317) use(1299) case(1017) }
{ activ(1452) weight(1219) physic(1104) }
{ method(1219) similar(1157) match(930) }
{ studi(1119) effect(1106) posit(819) }
{ structur(1116) can(940) graph(676) }
{ detect(2391) sensit(1101) algorithm(908) }
{ model(3404) distribut(989) bayesian(671) }
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{ research(1218) medic(880) student(794) }
{ patient(2837) hospit(1953) medic(668) }
{ model(2656) set(1616) predict(1553) }
{ medic(1828) order(1363) alert(1069) }
{ signal(2180) analysi(812) frequenc(800) }
{ cost(1906) reduc(1198) effect(832) }
{ group(2977) signific(1463) compar(1072) }
{ first(2504) two(1366) second(1323) }
{ intervent(3218) particip(2042) group(1664) }
{ activ(1138) subject(705) human(624) }
{ time(1939) patient(1703) rate(768) }
{ patient(1821) servic(1111) care(1106) }
{ use(2086) technolog(871) perceiv(783) }
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{ analysi(2126) use(1163) compon(1037) }
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{ high(1669) rate(1365) level(1280) }
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{ method(1969) cluster(1462) data(1082) }
{ method(2212) result(1239) propos(1039) }

Resumo

The problem of finding the locations in DNA sequences that match a given motif describing the binding specificities of a transcription factor (TF) has many applications in computational biology. This problem has been extensively studied when the position weight matrix (PWM) model is used to represent motifs. We investigate it under the feature motif model, a generalization of the PWM model that does not assume independence between positions in the pattern while being compatible with the original PWM. We present a new method for finding the binding sites of a transcription factor in a DNA sequence when the feature motif model is used to describe transcription factor binding specificities. The experimental results on random and real data show that the search algorithm is fast in practice.

Resumo Limpo

problem find locat dna sequenc match given motif describ bind specif transcript factor tf mani applic comput biolog problem extens studi posit weight matrix pwm model use repres motif investig featur motif model general pwm model assum independ posit pattern compat origin pwm present new method find bind site transcript factor dna sequenc featur motif model use describ transcript factor bind specif experiment result random real data show search algorithm fast practic

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