Mashandiro anoita maEnzymes: Kufumura Zvakavanzika zveBiological Catalysts
MaEnzayimu rudzi rwemapuroteni anoshanda semacatalyst mukuita kwemakemikari emuviri. Pasina maEnzayimu, kuita kwakawanda kunokosha muzvinhu zvipenyu kwaizoitika zvishoma nezvishoma zvekuti hazvigone kutsigira hupenyu. Muchinyorwa chino, tichakurukura mashandiro anoita maEnzayimu, kubva pachimiro chawo kusvika pakushanda kwawo, zvichiita kuti kuita kwemuviri kuitike nekushanda kwakanyanya.
Maumbirwo eEnzyme uye Kuumbwa kwayo
MaEnzayimu anonyanya kuumbwa nemapuroteni, ari mapolymer emaamino acids. Kufanana nemamwe mapuroteni, maenzyme ane chimiro chakanangana nemativi matatu. Chimiro ichi chakakamurwa kuita mazinga mana: chekutanga, chechipiri, chechitatu, uye chekota.
- Chimiro Chekutanga: Iyi imhando yakatevedzana yemaamino acids akarongwa nenzira yakatarwa zvichibva pane kodhi yemajini.
- Maumbirwo Echipiri: Kuumbwa kwemapatani akadai se alpha helices uye beta sheets, ayo anoumbwa kuburikidza nezvisungo zvehydrogen pakati pemaketani makuru emaamino acids.
– Maumbirwo Epamusoro: Chimiro cheprotein chakaoma kunzwisisa uye chakanangana nezvikamu zvitatu, chinofambiswa nekudyidzana pakati pemaketani emativi eamino acid.
– Maumbirwo eQuaternary: Mamwe mapuroteni ane maumbirwo equaternary, ayo ari mapuroteni akaumbwa pakati pemapolypeptide maviri kana kupfuura.
Ma enzyme ane nzvimbo inoshanda, nzvimbo chaiyo iyo substrate (morekuru inogadzirisa mu enzyme-catalyzed reaction) ichabatana. Nzvimbo iyi ine chimiro chaicho uye hunhu hwemakemikari hunoenderana ne substrate, sekunge kiyi inokwana mukiyi.
Maitiro Ekushanda KwemaEnzyme
MaEnzyme anoshanda nekuderedza simba rekuita kuti pave nekuita kwemakemikari. Kuitwa kwemakemikari kwega kwega kunoda simba rakati kuti kutange. Mumaitiro ehupenyu, simba iri rinowanzo kuve rakawandisa, saka maenzyme anodiwa kuti rideredzwe. Heano matanho akajairika:
1. Kusunga Substrate: Substrate inosunga panzvimbo inoshanda yeenzyme, zvichiita kuti pave ne enzyme-substrate complex. Kusunga uku kunogona kukonzera shanduko mu enzyme inozivikanwa se "induced fit." Kuchinja uku kunowedzera kushandirana pakati pe enzyme ne substrate.
2. Kuderedza Simba reKushanda: Kana substrate yakabatana, enzyme inodzikamisa mamiriro ekuchinja, kuumbwa kwenguva pfupi panguva yekuita iyo ine simba rakawanda. Iyi enzyme inopa imwe nzira ine simba shoma rekushanda, nokudaro ichikurumidzisa kuita.
3. Kugadzirwa Kwechigadzirwa: Mushure mekuitwa kwechinhu ichi, enzyme iyi inotsigira kushandurwa kwechinhu ichi kuita chigadzirwa. Iyo enzyme inobva yaburitsa chigadzirwa ichi uye inenge yagadzirira kubata imwe molecule yechinhu ichi.
Mhando dzeEnzymes Dzinoenderana Nebasa
MaEnzyme anorongwa zvichienderana nebasa raanoita, uye mazhinji acho anowira muzvikamu zvinotevera:
– Oxidoreductase: Inobatsira pakuderedza oxidation, kutamiswa kwemaerekitironi pakati pemamorekuru.
– Transferase: Inotamisa mapoka anoshanda kubva kune rimwe molecule kuenda kune rimwe.
– Hydrolase: Inopwanya mamorekuru nekuwedzera mvura.
– Lyasis: Kupwanya zvisungo nenzira isiri hydrolysis kana oxidation, kazhinji zvichikonzera zvisungo zviviri.
– Isomerase: Inochinja kurongeka kwemaatomu mumamorekuru.
– Ligase: Inobatanidza mamorekuru maviri nekugadzira mabhondi matsva emakemikari, kazhinji pamwe chete neATP hydrolysis.
Zvinhu Zvinokanganisa Basa reEnzyme
Basa re enzyme rinogona kukanganiswa nezvinhu zvakasiyana-siyana zvakatipoteredza, zvinosanganisira:
– pH: Ma enzyme mazhinji anoratidza kushanda kwakanaka mukati me pH range chaiyo. Kuchinja kwe pH kunogona kukanganisa chimiro che enzyme, kunyanya panzvimbo inoshanda.
– Tembiricha: Basa rema enzyme rinowedzera nekupisa kuri kuwedzera kusvika pamuganhu wakati, mushure mezvo chimiro chema enzyme chinogona kukuvara (denaturation).
– Kuwanda kweSubstrate neEnzyme: Basa rinokura nekuwedzera kwehuwandu hwesubstrate kusvika enzyme yese yabatana nesubstrate. Basa reEnzyme rinogona kuwedzerwa nekuwedzera huwandu hweenzayimu.
– Zvinodzivisa uye Zvinoita Kuti enzyme ishande: Mamwe mamorekuru anogona kumisa kana kuwedzera mashandiro ema enzyme. Izvi zvinogona kunge zvichikwikwidzana, zvisingakwikwidzane, uye zvichikonzera kutenderera kweropa.
Kushandiswa kweEnzymes muhupenyu hwezuva nezuva
Kushandiswa kwema enzymes hakungogumiri pamaitiro emuviri chete asiwo kunoshanda mumaindasitiri. Heano mamwe emashandisirwo azvo:
– Indasitiri yeChikafu neZvinwiwa: Ma enzyme akadai se amylase, protease, uye lipase anoshandiswa mukugadzira chikafu nezvinwiwa kuti kukurumidzise maitiro acho uye kunatsiridza kuravira uye magadzirirwo.
– Biotechnology neFarmacy: Mu biotechnology, ma enzyme anoshandiswa pakugadzira majini, nepo mu pharmacy, ma enzyme anoshandiswa mukugadzira mishonga kusanganisira kuwanikwa nekugadzirwa kwemakemikari anoshanda mumuviri.
– Zvigadzirwa zvekuchenesa: Sipo dzakawanda dzinoshandisa maenzayimu kuvandudza kushanda kwekuchenesa, kunyanya kupwanya mapuroteni, mafuta, uye makabhohaidhiretsi ari mumarara.
Mhedziso
MaEnzayimu mamorekuru anoshanda zvakanyanya uye akananga anokurumidza kuita makemikari. Kuburikidza nemaumbirwo awo akasiyana uye nzira dzakaoma dzekuita, maEnzayimu anoderedza simba rekushanda, zvichiita kuti mafambiro akasiyana-siyana ezvebhayoloji aitike mumamiriro ezvinhu anobatsira kuti pave nehupenyu. Nekunzwisisa mashandiro anoita maEnzayimu, tinogona kukoshesa nekushandisa kugona kwawo kusimudzira sainzi netekinoroji. Kunzwisisa kwakadzama maEnzayimu, kunyanya muhutano neindasitiri, kunovhura mukana wekuvandudza zvinhu zvitsva mune ramangwana.
