Qhov sib txawv ntawm peptides thiab peptide chains

Qhov sib txawv ntawm peptides thiab peptide chains yog:

1. qhov txawv.

2. Cov yam ntxwv sib txawv.

3. tus naj npawb ntawm cov amino acids sib txawv.

Nws yog tsim los ntawm peb lossis ntau dua amino acid molecular peptide yog polypeptide, lawv qhov hnyav molecular hauv qab 10000 Da, tuaj yeem dhau los ntawm cov membrane semipermeable, tsis precipitated los ntawm trichloroacetic acid thiab ammonium sulfate.peptide saw yog ib lo lus lom neeg, uas yog txuas nrog lub cev qhuav dej thiab condensation ntawm ntau cov amino acids los ua peptide bonds (tshuaj bonds).

Qhov sib txawv ntawm peptides thiab peptide chains

1. qhov txawv.

Polypeptide: Ib qho chaw ntawm α-amino acids txuas ua ke los ntawm peptide bonds.Nws yog ib qho khoom nruab nrab ntawm proteolysis.

Peptide CHAIN: Txhua ob cov amino acids txuas rau tsim ib daim ntawv cog lus peptide, ntau cov amino acids txuas los tsim ntau daim ntawv cog lus peptide, cov saw hlau ntawm cov amino acids txuas rau ib leeg uas muaj ntau yam peptide bonds.

2. Cov yam ntxwv sib txawv.

Peptides: Peptides muaj ntau yam solubility.Qhov teeb meem tseem ceeb nrog peptide insolubility yog tsim ntawm cov txheej txheem thib ob."Qhov no tshwm sim rau txhua tus tab sis cov peptides siab tshaj plaws thiab tau tshaj tawm rau peptides nrog ntau yam hydrophobic residues."

Peptide CHAIN: Thaum ob lub amino acids koom ua ib daim ntawv cog lus peptide, cov dej molecule raug tso tawm (los yog tsim).Qhov ntawd yog pes tsawg peptide daim ntawv cog lus tsim, muaj pes tsawg dej molecules yuav tshwm sim.Yog li muaj pes tsawg daim ntawv cog lus muaj nyob rau hauv cov saw peptide, pes tsawg cov dej molecules yuav tawm.

3. tus naj npawb ntawm cov amino acids txawv.

Polypeptide: feem ntau yog los ntawm 10 mus rau 100 amino acid molecules condensed los ntawm lub cev qhuav dej.

Peptide chains: peptides muaj ob peptides, peb peptides, thiab lwm yam, kuj suav nrog peptides.