ISDA

Deposition Date 1997-02-20

Release Date 1997-05-15

Last Version Date 2024-02-07

Entry Detail

PDB ID:

1AD2

Keywords:

RIBOSOMAL PROTEIN

Title:

RIBOSOMAL PROTEIN L1 MUTANT WITH SERINE 179 REPLACED BY CYSTEINE

Biological Source:

Source Organism:

Thermus thermophilus (Taxon ID: 274)

Host Organism:

Escherichia coli BL21

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.90 Å

R-Value Free:

0.27

R-Value Work:

0.20

R-Value Observed:

0.20

Space Group:

P 21 21 2

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:RIBOSOMAL PROTEIN L1
Gene (Uniprot):rplA
Mutations:S179C
Chain IDs:A
Chain Length:228
Number of Molecules:1
Biological Source:Thermus thermophilus

UniProt ID:P27150 Pfam ID:PF00687

Ligand Molecules

MRD

SO4

Primary Citation

A mutant form of the ribosomal protein L1 reveals conformational flexibility.

Unge, J, Al-Karadaghi, S, Liljas, A, Jonsson, B.H, Eliseikina, I, Ossina, N, Nevskaya, N, Fomenkova, N, Garber, M, Nikonov, S.Show

FEBS Lett. 411 53 59 (1997)

PMID: 9247141 DOI: 10.1016/S0014-5793(97)00611-X

Abstact

The crystal structure of the mutant S179C of the ribosomal protein L1 from Thermus thermophilus has been determined at 1.9 A resolution. The mutant molecule displays a small but significant opening of the cavity between the two domains. The domain movement seems to be facilitated by the flexibility of at least two conserved glycines. These glycines may be necessary for the larger conformational change needed for an induced fit mechanism upon binding RNA. The domain movement makes a disulfide bridge possible between the incorporated cysteines in two monomers of the mutant L1.

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Primary Citation of related structures