Qaab dhismeedka acid amino. Qeexid iyo dirka acids amino

Waxaa ka mid ah noocyo kala duwan oo badan ee walxaha dabiiciga ah acids amino leeyihiin meel gaar ah. Waxaa sabab u ah ay qiimo gaar ah labadaba bayoolaji iyo kimistari organic. Xaqiiqdu waxay tahay in laga acids amino ka kooban ee u taagoo fudud oo adag oo ah borotiinada, kuwaas oo saldhig u ah kasta iyo cayn kasta oo nolosha on Earth. Waa waayo, taasu sabab in sayniska waxaa feejignaan culus u daraasadda ka mid ah arrimaha sida dhismeedka amino acid, guryaha, wax soo saarka iyo isticmaalka. qiimaha badan oo ka mid ah xarumaha caafimaadka, halkaas oo ay ku waxaa loo isticmaalaa sida diyaarinta, daawooyinka. Waayo, kuwa dadka si dhab ah ku hawlan caafimaadkooda iyo kaxayn jidka firfircoon nolosha, monomers protein waa nooc ka mid ah cuntada (ee loo yaqaan nafaqada sports). Qaar ka mid ah noocyada loo isticmaalo sida feedstock in soo saaridda macdantaa dardaro ee kiimikada dardaro organic - enanth iyo nylon. Sida aad arki karto, acid amino ah door aad u muhiim ah labada ee dabiiciga ah iyo in bulshada aadanaha, sidaas fiiri iyaga si faahfaahsan.

Features of qaab-dhismeedka acids amino

Xeryahooda of class this yihiin walxaha organic amphoteric, ie ku jira laba kooxood oo functional, oo sidaas daraaddeed muujiyaan guryaha dual. Gaar ahaan, in u taagoo ee xag hydrocarbyl joogo ku lifaaqan a NH ₂ kooxood amino iyo kooxaha carboxylic COOH. The falgalka kiimikada la walxaha kale ee u dhaqmaan sida saldhig amino acid ah, sida ay acid. Isomers xeryahooda sida lagu muujiyey ay sabab u tahay isbedelka ama qaabeynta aan ollogga ah ee lafaha carbon ah, ama meel amino, iyo dirka acids amino waxaa lagu go'aamiyaa ku salaysan sifooyinka dhismaha iyo guryaha ee shidaalka ee xagjirka ah. Waxaa dhici karta in foomka of silsilad si toos ah ama jahaysteen oo ku jira qaab-dhismeedka xilliile ah.

dhaqdhaqaaqa indhaha acids aminocarboxylic

All monomers of polypeptides iyo 20 noocyada joogo ee jirka ka mid ah dhirta, xayawaanka iyo bini'aadanka, waa acids L-amino. Inta badan oo iyaga ka mid ah waxa ku jira la eb carbon sinnayn, jeestay halka qoqobada dogobka iftiinka kala fog xagga bidixda. Laba isoleucine monomer iyo threonine - waxay leeyihiin laba atamka carbon sida iyo acid aminoacetic (glycine) - ma jiro. kala saaro dhaqdhaqaaqa indhaha amino si weyn loo isticmaalaa in Kiimikada noole iyo biology kelli waxbarasho ee geedi socodka of turjumi biosynthesis protein. Waxa xiiso leh, ee acids amino foomka D-marna qeyb ka mid ah silsilado polypeptide borotiinada ah, laakiin ay joogaan in xuubka bakteeriyada iyo waxyaabaha dheefshiidka ee fangaska, actinomycetes, la, dhab ahaantii, waa la helay ee antibiotics dabiiciga ah sida gramicidin. In Kiimikada noole si fiican u yaqaan walax foomka D-dhismeedka a da'ayeen sida citrulline, homoserine, ornithine, ka ciyaaraan door muhiim ah ka falcelinta shiid cell.

Waa maxay zwitterions?

Mar kale, monomers in borotiinada ka kooban yihiin kooxaha functional waa amines iyo acids carboxylic. Qurub -NH ₂ iyo COOH wada macaamilaan gudahood Britain ah, taas oo horseedaysa in ay cusbada hoose, loo yaqaan ra'iyi bipolar (zwitterion). Tani waxay fasireysaa dhismeedka gudaha oo ka mid ah acids amino ay awoodda sare si ay ula falgalaan qase kala horjeeda, sida biyaha. Joogitaanka Qurub lagu eedeeyay in xal sababa ay conductivity.

acids maxay Daawynta-amino

Haddii koox amino ee Britain ayaa ku yahay eb ugu horeysay carbon, laga bilaabo goobta meel carboxyl ah, acid amino sida iska leh fasalka ee acids α-amino. Waxay mashquulin meel keentay in calaamadiyey, maxaa yeelay, ka monomers kuwaas oo la dhisay oo dhan u taagoo protein bayoloji firfircoon, tus, sida ensaymes, hemoglobin, actin, collagen oo u eg. D. Dhismaha class this ee acids amino la oran karo waa, tusaale ahaan glycine, isku kaas oo si weyn loo isticmaalaa in ku dhaqanka dareemayaasha sida diyaarinta nasteexo leh lagu daaweyn jiray noocyo fudud murugada iyo neurasthenia.

Magaca Caalamiga ah ee acid amino this - α-glycine, waxay leedahay indhaha L-qaab oo waa proteinogenic, isagu qayb ka ah geedi socodka tarjumaadda iyo waa qayb ka mid ah macromolecules protein ah.

Borotiin iyo doorka ay ku shiid of monomers

Waa wax aan macquul in la qiyaaso hawlaha caadiga ah ee u shaqeeyo ee nuujiya, oo ay ku jiraan nin, iyadoo aan hormoonnada, oo ka kooban taagoo protein. Qaab dhismeedka kiimikada ah ee acids amino dhexdeeda ah, ayaa xaqiijiyay in ay ka tirsan ee α-foomamka. Tus, triiodothyronine iyo tyroksiini soo saaray qanjirka thyroid. Waxay sharciyaynta dheefshiidka iyo unugyada ay ku dhexsameeysmo jirka ka tyrosine acid α-amino. The borotiinada fudud oo adag waxaa laga helaa sida 20 monomers waaweyn iyo taagayo ay. prothrombin The, taas oo dejisa xinjirowga dhiigga, waa acid joogo carboxyglutamic in myosin (protein muruqa) methyllysine ogaado, perodoxida eulayska - selenocysteine.

qiimo nafaqo ee borotiinada iyo monomers ay

Fiirsaneysa inay qaab-dhismeedka acids amino iyo kala soocidda, waxay diirada saari doontaa wayn Fadilid ku salaysan awoodda ama awood of monomers protein dhexsameeysmo unugyada. Aminotransferase, proline, tyrosine iyo xarumaha kale ee la sameeyay ee falcelinta ee sarrifka caag ah, iyo tryptophan, iyo toddoba acids kale amino leedahay si aad u hesho jidhkeenna kaliya cunto.

Mid ka mid ah tilmaame of cunto sax ah iyo isku dheeli tiran yahay heerka isticmaalka bini'aadamka ah cuntooyinka borotiinka. Waa in ugu yaraan qayb ka mid afraad ee wadarta guud ee cuntada helay by jidhka maalin kasta. Waxaa si gaar ah muhiim u tahay in borotiinka ku jira valine ay ka kooban, isoleucine, iyo acids kale ee muhiimka ah amino. Xaaladdan oo kale, borotiinada waxaa lagu magacaabaa dhamaystiran. Waxay jidhka bini'aadamka ka galina cuntada dhirta, ama cuntooyinka ay ku jiraan fangaska.

Monomers isu borotiinnada aan la samaysan karin unugyada mammalian. Haddii aan ka fiirsan qaabka taagoo of acids amino, kuwaas oo lagama maarmaan, waxa aan arki karnaa in ay ka tirsan yihiin fasalo kala duwan. Sidaas daraaddeed, valine iyo leucine waa taxane aliphatic, tryptophan - u acids amino leedahay beduliyum iyo threonine - in hydroxyamino ah.