Diff for "Ribosome" - BioHackersNet

Differences between revisions 3 and 4

mRNA로 부터, Protein을 합성하는 세포질(Cytoplasm)내의 Protein-RNA복합체. One of the CellularComponent

An intracellular organelle, about 200 A in diameter, consisting of [RNA] and [Protein]. It is the site of [Protein] biosynthesis resulting from [Translation] of messenger RNA (mRNA).

It consists of two subunits, one large and one small, each containing only [Protein] and [RNA]. Both the ribosome and its subunits are characterized by their sedimentation coefficients, expressed in Svedberg units (symbol: S). Hence, the prokaryotic ribosome (70S) comprises a large (50S) subunit and a small (30S) subunit, while the eukaryotic ribosome (80S) comprises a large (60S) subunit and a small (40S) subunit. Two sites on the ribosomal large subunit are involved in Translation, namely the aminoacyl site (A site) and peptidyl site (P site). Ribosomes from prokaryotes, eukaryotes, Mitochondria, and Chloroplasts have characteristically distinct ribosomal proteins.

원핵세포 (70S [Ribosome])

50S : 5S rRNA(120b) + 23S rRNA(2904b) + 31 Proteins
30S : 16S rRNA(1541b) + 21 Proteins

진핵세포 (80S [Ribosome])

60S : 5S rRNA + 5.8S rRNA + 28S rRNA + 50 Proteins
40S : 18S rRNA + 30 Proteins

보통 Evolution적 연관관계의 추적을 위해 16S, 18S rRNA서열이 활용된다.

-  ⇤ ← Revision 3 as of 2012-06-13 20:29:39 → 
  Size: 1376
  Editor: 61
  Comment:
+   ← Revision 4 as of 2012-06-13 20:29:56 → ⇥
  Size: 1382
  Editor: 61
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 7:
-It consists of two subunits, one large and one small, each containing only [Protein] and [RNA]. Both the ribosome and its subunits are characterized by their sedimentation coefficients, expressed in Svedberg units (symbol: S). Hence, the prokaryotic ribosome (70S) comprises a large (50S) subunit and a small (30S) subunit, while the eukaryotic ribosome (80S) comprises a large (60S) subunit and a small (40S) subunit. Two sites on the ribosomal large subunit are involved in [Translation], namely the aminoacyl site (A site) and peptidyl site (P site). Ribosomes from prokaryotes, eukaryotes, [Mitochondria], and [Chloroplast]s have characteristically distinct ribosomal proteins.
+It consists of two subunits, one large and one small, each containing only [Protein] and [RNA]. Both the ribosome and its subunits are characterized by their sedimentation coefficients, expressed in Svedberg units (symbol: S). Hence, the prokaryotic ribosome (70S) comprises a large (50S) subunit and a small (30S) subunit, while the eukaryotic ribosome (80S) comprises a large (60S) subunit and a small (40S) subunit. Two sites on the ribosomal large subunit are involved in [[Translation]], namely the aminoacyl site (A site) and peptidyl site (P site). Ribosomes from prokaryotes, eukaryotes, [[Mitochondria]], and [[Chloroplast]]s have characteristically distinct ribosomal proteins.