ʻO ka ʻokoʻa ma waena o nā peptides a me nā kaulahao peptide

ʻO nā ʻokoʻa ma waena o nā peptides a me nā kaulahao peptide:

1.ke ano like ole.

2.ʻO nāʻano likeʻole.

3.ka helu o nā ʻakika amino like ʻole.

Ua haku ʻia he ʻekolu a ʻoi aku ka nui o ka amino acid molecular peptide he polypeptide, ko lākou kaumaha mole ma lalo o 10000 Da, hiki ke hele i loko o kahi membrane semipermeable, ʻaʻole precipitated e ka trichloroacetic acid a me ka ammonium sulfate.ʻO ke kaulahao peptide he huaʻōlelo olaola, i hoʻopili ʻia e ka dehydration a me ka condensation o nā ʻakika amino lehulehu e hana i nā paʻa peptide (nā paʻa kemika).

ʻO ka ʻokoʻa ma waena o nā peptides a me nā kaulahao peptide

1.ke ano like ole.

Polypeptide: He hui o nā ʻakika α-amino i hoʻopili pū ʻia e nā paʻa peptide.He huahana waena ia o ka proteolysis.

KĀINA Peptide: ʻO kēlā me kēia ʻakika amino ʻelua i hoʻopili ʻia e hana i kahi paʻa peptide, nā ʻakika amino he nui i hoʻopili ʻia e hana i kahi paʻa peptide lehulehu, kahi kaulahao o nā waikawa amino i hoʻopili ʻia i kekahi me nā mea paʻa peptide lehulehu.

2. Nāʻano likeʻole.

Peptides: Loaʻa i nā peptides kahi ākea o ka solubility.ʻO ka pilikia nui me ka peptide insolubility ka hoʻokumu ʻana o nā hale lua."Hiki kēia no nā peptides koʻikoʻi loa a ʻoi aku ka nui o nā peptides me nā koena hydrophobic he nui."

KĀINA Peptide: Ke hui ʻia nā ʻakika amino ʻelua e hana i kahi paʻa peptide, hoʻokuʻu ʻia kahi mole wai (a i hana ʻia).ʻO ia ka nui o ka hoʻokumu ʻana o ka peptide bond, ʻehia ka nui o nā mole wai e puka mai.No laila, ʻehia ka nui o nā mea paʻa i loko o kahi kaulahao peptide, ehia mau molekole wai e puka mai.

3.ʻokoʻa ka helu o nā amino acids.

Polypeptide: maʻa mau mai 10 a 100 mau molekele amino acid i hoʻopaʻa ʻia e ka dehydration.

Nā kaulahao peptide: nā peptide i loaʻa i ʻelua peptide, ʻekolu peptides, a me nā mea ʻē aʻe, me nā peptides.