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Traducción - Parte 3.pdf
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7/26/2019 Traduccin - Parte 3.pdf
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04/05/2016
TRADUCCIN
PARTE III
GENTICA MOLECULAR 2016 UNIVERSIDAD DE MORN
ESTRUCTURA BSICA DEL ARNm
5UTRLeade
!UTRTa"#e
MENSA$EROS MONOCISTRNICOS% POLICISTRNICOS
CISTRN& '("dad m)* +e,'e-a de ma.e"a# /e(." a+a3 de *ee*+(*a4#e de #a *(.e*"* de '( +#"++."d
M("*.7(" ARNm d"8"a '(a *#a +.e(a
P#""*.7(" ARNm d"8"a 9a"a* +.e(a*
La ma:a de #* ARNm +a".a* *( +#""*.7("* E* de4"d a #aa/'+a"7( de /e(e* e( +e(e*& *e m+.a m '(a ;("a '("dad/e(."a : *e .a(*"4e e( '( m"*m me(*a
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MENSA$EROS MONOCISTRNICOS% POLICISTRNICOS
MENSA$EROS MONOCISTRNICOS% POLICISTRNICOS
Ge(ea#me(.e #* "4*ma* ,'e .em"(a( #a .ad'"7( de# +"me "*.7(*e *e+aa( e( #a* *'4'("dade* e= "(de+e(d"e(.eme(.e= '( ('e9 "4*ma*e e(*am4#a a# m"e(3 de# *"/'"e(.e
S"( em4a/= *" #a* e/"(e* "(.e"*.7("a* *( +e,'e-a*= e# m"*m"4*ma ,'e .ad'.em !*ea *"(.e."3ad :?.ad'"d de.)* de# ;#."m "4*ma de# +#"*ma
E* de.em"(a #a a(."dad de +.e(a ,'e *e) *"(.e."3ada
Ve#"dad de .a(*"+"7( a !@C 0 (.?*e/
Ve#"dad de .ad'"7( a !@C 15 aa?*e/
La e>+e*"7( de '( /e( .ada e(.e 2 : ! m"('.* e( m+#e.a*e
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EL ARNm PROCARIOTA EL ARNm EUCARIOTA
E* md"8"ad e( e# (;#e d'a(.e "(med"a.ame(.e de*+'* de *'.a(*"+"7(
La 9e#"dad de .a(*"+"7( e( #'#a* a("ma#e* e* #a m"*ma ,'e e(4a.e"a* 0 (.?*e/
S# e* e>+.ad a# ".+#a*ma '(a 9e3 ,'e .da* #a* md"8"a"(e* *em+#e.a( # 'a# .ada ea de 20 m"('.*
U(a 9e3 e( e# ".+#a*ma e* e("d : .ad'"d
V"da med"a de 1 a 60 m"('.* e( #e9ad'a* a*.a 2 F* e( e'a".a**'+e"e*= dad ,'e *( m)* e*.a4#e*
EL ARNm EUCARIOTA
Am4* e>.em* *e md"8"a( + ad""7( de ('#e7."d*
1 Ca++"(/ a+e'3a e( e# e>.em 5 &
*e eem+#a3a e# ."8*8a. + '( ('#e7."d G "(9e."d ! 5
2 P#"ade("#a"7( e( e# e>.em !&
*e ad""(a( a+>"madame(.e 200 (. de A
MODIICACIONES
EL ARNm EUCARIOTA
1 Ca+e'3a
MODIICACIONES
C(*"*.e e( #a ad""7( de '( ('#e7."d md"8"ad de/'a("(a @Hme."#/'a(*"(a med"a(.e e# e*.a4#e"m"e(.
de '( e(#ae 5H8*8a. 5H8*8a. e( #'/a de# e(#ae !=58*8d"e*.e
Se##aJ e# e>.em 5
K'eda *'*e+."4#e a me."#a"(e*
! ."+* de a+e'3a&
Ca+0& *e me."#a #a +"mea 4a*e /'a("(a
Ca+1& Se me."#a .am4"( #a *e/'(da 4a*e 8e'e(.e
Ca+2& *e me."#a #a .eea 4a*e .am4"(
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EL ARNm EUCARIOTA
2 P#"ade("#a"7(
MODIICACIONES
E*.a4"#"3a a# ARNm
S' 8a#.a +'ede "(F"4" #a .ad'"7(
E* '(a *e'e("a ,'e ( e*.) d"8"ada e( e# ADN
La ea"7( e* ##e9ada a a4 + #a +#"A +#"mea*a E*.a e(3"ma ( a.;a e( e#e>.em != *"( ,'e # Fae e( '( *"." "(.e(= e("e(d '(a *e'e("a *e-a# de#ARNm
EL ARNm EUCARIOTA
2 P#"ade("#a"7(
MODIICACIONES
EL ARNm EUCARIOTA
2 P#"ade("#a"7(& "m+.a("a +)."a
MODIICACIONES
La e/"7( +#"A +'ede a+aea*e ( #"/('#e7."d*U : T= # ,'e e*'#.a ;."# a# a"*#a #a m'e*.a e( '(a#'m(a
E*. a*#a .d* #* ARNm ".*7#"* : ('#eae*
EL ARNm EUCARIOTADEINICIN UNCIONAL
Paa d"*."(/'" a #* ARNm ".*7#"*= *e a*#a( #* +#"*ma* : *e #*.a.a ( e# a/e(.e ,'e#a(.e EDTA e#"m"(a #* "(e* M/2
La* *'4'("dade* "4*ma#e* *e *e+aa( #"4ea(d e# ARNm e( '(a8a"7( "4('#e+.e"a ARNm +.e(a* ,'e *ed"me(.a a 1S
E# e*. *ed"me(.a a 200S
Se # de(m"(a ENSA%O UNCIONAL +,'e "de(."8"a a #* ARNm ,'eea#me(.e e*.)( *"e(d .ad'"d* + #* "4*ma*
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PROTENASSNTESIS PROTEICA
Se "(""a ( e# e(*am4#ad de #* +#""4*ma* a# ARNm P'ede( *e&
L"4e*& #a* +.e(a* *"(.e."3ada* *e #"4ea( a# ".*#
U("d* a mem4a(a& a med"da ,'e *( *"(.e."3ada*= #a* +.e(a*"(/e*a( a# e.'# e(d+#a*m)." .a(*8ee("a H.ad'"(a#
PROTENASPROCESAMIENTO POSTRADUCCIONAL
E# +#"++."d ,'e eme/e de# "4*ma e* "(a."9
A(.e* de ad,'"" *' +a+e# 8'("(a# de4e *'8" de '( m)* de #*'a. ."+* de +e*am"e(. +*.ad'"(a#&
P#e/am"e(.
De/ada"7( +.e#."a
Md"8"a"7( ,'m"a
C.e : em+a#me de "(.e(a*
PROTENASPROCESAMIENTO POSTRADUCCIONAL
PLEGAMIENTO&
S# a#/'(a* de #a* +.e(a* m)* +e,'e-a* : de e*.'.'a me(*m+#e
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PROTENASLOCALIACION CELULAR DE LAS PROTENAS
M': e*+e8"a&
P.e(a* *#'4#e*& e( e# ".*#
E*.'.'a* mam#e'#ae*& e( *"."* (e.* de# ".+#a*mae.em a4>"# .em"(a# de# pptido lder e* F"d78"# :(."e(e '(a 3(a e("da +aa *e .ada
PROTENASEPORTACIN
APARATO DE EPORTACIN&
E# a+aa. de e>+.a"7( (*"*.e e( '(a *e"e de +.e(a*##amada* +.e(a* Se La* +"("+a#e* +.e(a* Se 8ma( '(
m+#e+.a"7(