蛋白质的合成
Protein synthesis
A: Excuse me, what are you doing?
不好意思,你们在做什么?
B: we are prepare to do a important exprement.
我们正在准备做
一个重要的试验
A: what exprement?
什么实验
C: oh , This experiment is about how to use the amino acid
for the synthesis of proteins.
噢,这个实验是关于氨基酸如何合成蛋
白质的。
D
:
t
here are more than 300 species of amino acids in the
nature, but the composition of body protein amino acid has
only
20.
Amino
acids
are
composed
of
the
basic
unit
of
protein.
The
protein
is
composed
of
many
amino
acid
polypeptide
chain.
存在于自然界中的氨基酸有
300
余种,
但组成人体蛋白质的氨基酸仅有
20
种。
氨
基酸是组成蛋白质的基本单位。蛋白质就是由许多氨基酸残基组成的多肽链。
A
:
Usually
neutral
amino
acid
side
chain
containing
no
carboxyl
or
amino
acid,
amino
acid
side
chain
containing carboxyl
groups, and a basic amino acid side chain containing amino
guanidine and Mi Zuoji, respectively.
通常中性氨基酸侧链上不含
有羧基或氨基,
酸性氨基酸的侧链都含有羧基,
而碱性氨基酸的侧链分别含有氨
基、胍基和咪唑基。
B
:
In
addition,
in
20
kinds
of
amino
acid
proline
and
cysteine
relatively
special
structure.
Proline
is
the
imino
acids,
but
its imino can still with another carboxyl groups and form
chains
此外,
20
种氨基酸中脯氨酸和半胱氨酸结构较为特殊。
脯氨酸应属亚氨
基酸,但其亚氨基仍能与另一羧基形成肽链。
C
:
The
synthesis
process
can
be
divided
into
five
major
stages,
activation
of
amino
acids,
polypeptide
chain
synthesis
starting, the extension of the peptide, polypeptide chain
termination
and
release,
protein
synthesis
and
modification
合成过程主要可分为五个阶段,
氨基酸的活化、
多肽链合成的起始、
肽链的延长、
肽链的终止和释放、蛋白质合成后的加工修饰。
A: it sounds very great.
听起来很棒
D:
yes,we
are
all
interest
in
it,so
we
decide
to
go
to
a
look.
是的,我们都对这个很感兴趣,所以我们决定研究一下。
A:
really? I
am
very
interest
in
it,too.can i take part in?
真的吗?我也很感兴趣,我能够加入你们么?
B: yes,of cause,we also need a helper.
当然可以,我们正好缺一个
帮手。
A
:
what should we do at first
那我们首先需要做些什么?
C: First
we
need
to
understand
the
principles
of
protein
amino
acid synthesis.......
首先我们需要了解合成的原理
D: Protein biosynthesis, also known as translation, namely
mRNA molecular bases in order to proteins in the course of.
蛋白质的合成,也被称为翻译,即
mrna
分子基础翻译为为蛋白质的过程。