Ntụ ntụ Proline
Proline (nke a kpọrọ Pro maọbụ P), ya na usoro kemịkalụ C5H9NO2 na ibu molekul nke 115.13, bụ amino acid sub cyclic. α- Amino acid, nke na-anọpụ iche, nwere isi isoelectric nke 6.30, nwere ike ịgbaze na mmiri karịa amino acid ọ bụla ọzọ, ọ nwekwara ike ịgbaze ihe dị ka 162g na 100g nke mmiri na 25 ℃. Ọ dị mfe ịtọ ụtọ mana ọ dịghị mfe ịkpụ kristal, yana ụtọ dị ụtọ. Okpomọkụ co na ngwọta ninhydrin na-emepụta ogige odo odo. Ozugbo ọ banyere na yinye peptide, hydroxylation nwere ike ime, na-ebute ịmepụta 4-hydroxyproline, nke bụ ihe dị mkpa nke collagen anụmanụ. Hydroxyproline dịkwa na protein osisi dị iche iche, karịsịa metụtara nhazi nke mgbidi sel. Osisi na-enwekarị nnukwu mkpokọta nke proline n'okpuru ọnọdụ ọjọọ dị iche iche dịka ọkọchị, okpomọkụ dị elu, okpomọkụ dị ala, na nnu. A na-ejikarị ya eme ihe n'ọhịa ahụike, ihe ndị dị ndụ, ụlọ ọrụ mmepụta ihe, na ndị ọzọ.
E nwere ụdị proline atọ:DL proline, L-proline, na D-proline. Ihe a na-akpọkarị proline bụ L-proline, amino acid sitere n'okike. N'okpomọkụ ụlọ, ngwaahịa a bụ kristal kọlụm. Ọ na-agbaze ngwa ngwa mgbe a na-ekpo ọkụ ruo 215-220 ℃. Ọ na-agbaze na mmiri ọkụ na ethanol. Ọ dị ntakịrị ụtọ ma dị ọcha. Racemization na ngwọta alkaline. [α] D25-86.5 ° (mmiri), -60.4 ° (5N hydrochloric acid). Kesara na protein dị iche iche. Amino acid nwere obere ọdịnaya na plankton mmiri; Ọ dịkwa na mmiri mmiri, ihe dị n'ime ya, na sedimenti mmiri.
Proline bụ amino acid na-adịghị mkpa n'ahụ mmadụ.
Ọrụ na nzube
Ngwa na ụlọ ọrụ ọgwụ
Ọgwụ amino acid. Otu n'ime ihe ndị e ji eme amino acid dị iche iche. A na-eji ya eme ihe maka mgbakwunye protein mgbe nri na-adịghị mma, enweghị protein, ọrịa afọ siri ike, ọkụ, na usoro ịwa ahụ. Enweghị mmetụta ọjọọ doro anya.
Mmetụta dị n'ime ahụ
N'ime ihe ndị dị ndụ, proline abụghị naanị ihe kacha mma maka osmoregulation, kamakwa ọ na-eje ozi dị ka ihe nchebe maka akpụkpọ ahụ na enzymes, yana ihe nchekwa radical n'efu, si otú a na-echebe uto osisi n'okpuru nrụgide osmotic. Maka mkpokọta ihe ọzọ dị mkpa nke osmoregulation na vacuoles na ihe ndị dị ndụ nke potassium ion, proline nwekwara ike ịrụ ọrụ nchịkwa na nhazi osmotic cytoplasmic.
Ngwa ụlọ ọrụ mmepụta ihe
N'ime ụlọ ọrụ mmepụta ihe, proline nwere ike isonye n'ịkpalite mmeghachi omume asymmetric ma jee ozi dị ka ihe na-akpali hydrogenation, polymerization, na mmeghachi omume mmiri. Mgbe ejiri ya dị ka ihe na-akpali mmeghachi omume ndị dị otú ahụ, ọ na-arụ ọrụ siri ike ma nwee ezigbo stereospecificity.
Ngwa na mpaghara ndị ọzọ
1. A na-ejikarị Proline na ihe ndị sitere na ya eme ihe dị ka ihe na-akpali mmeghachi omume organic, ebe mbelata nke CBS na mmeghachi omume catalytic aldol condensation nke proline bụ ihe atụ pụtara ìhè.
2. N'oge a na-eme mmepụta ihe, protein bara ụba na proline nke ejikọtara na polyphenols, nke nwere ike imepụta ashịhịhị (mgbawa).
3. Ihe ndị e ji emepụta ihe maka mmepụta nke ihe ndị na-egbochi gallstone ester.
4. Ihe na-eme ka ihe na-esi ísì ụtọ, bụ́ ndị na-emeghachi omume na shuga site na ikpo ọkụ co iji mepụta otu amino hydrogen, nwere ike imepụta ihe ndị nwere isi pụrụ iche.
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5. A pụrụ ịtụkwasị obi ma na-agbaso ọrụ nkwekọrịta ahụ nke ọma na mgbe ọrụ ahịa gasịrị,
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