1WY6

Crystal Structure of Hypothetical Protein [ST1625p] from Hyperthermophilic Archaeon Sulfolobus tokodaii

Replaces:  1VDU

Summary for 1WY6

• Entry DOI: 10.2210/pdb1wy6/pdb
• Descriptor: hypothetical protein ST1625 (2 entities in total)
• Functional Keywords: hypothetical protein, helical repeat protein, structural genomics, unknown function
• Biological source: Sulfolobus tokodaii
• Total number of polymer chains: 1
• Total formula weight: 19413.57

Authors

Yoneda, K.,Sakuraba, H.,Tsuge, H.,Katunuma, N.,Kuramitsu, S.,Kawabata, T.,Ohshima, T. (deposition date: 2005-02-07, release date: 2005-02-15, Last modification date: 2024-11-06)

Primary citation

Yoneda, K.,Sakuraba, H.,Tsuge, H.,Katunuma, N.,Kuramitsu, S.,Kawabata, T.,Ohshima, T.
The first crystal structure of an archaeal helical repeat protein.
Acta Crystallogr.,Sect.F, 61:636-639, 2005

PubMed Abstract: The crystal structure of ST1625p, a protein encoded by a hypothetical open reading frame ST1625 in the genome of the hyperthermophilic archaeon Sulfolobus tokodaii, was determined at 2.2 A resolution. The only sequence similarity exhibited by the amino-acid sequence of ST1625p was a 33% identity with the sequence of SSO0983p from S. solfataricus. The 19 kDa monomeric protein was observed to consist of a right-handed superhelix assembled from a tandem repeat of ten alpha-helices. A structural homology search using the DALI and MATRAS algorithms indicates that this protein can be classified as a helical repeat protein.

PubMed: 16511116
DOI: 10.1107/S1744309105019263

Experimental method

X-RAY DIFFRACTION (2.2 Å)