CRYSTAL STRUCTURE OF a PIN (PILT N-TERMINUS) DOMAIN CONTAINING PROTEIN (AF0591) FROM ARCHAEOGLOBUS FULGIDUS AT 1.90 A RESOLUTION
Joint Center for Structural Genomics (JCSG)
Crystal structure of a PIN (PilT N-terminus) domain (AF0591) from Archaeoglobus fulgidus at 1.90 A resolution
single crystal Si(111) bent monochromator
(MSE)GSDKIHHHHHH(MSE)EADRGRNNKVRCAVVDTNVL(MSE)YVYLNKADVVGQLREFGFSRFLITASVKRELEKL E(MSE)SLRGKEKVAARFALKLLEHFEVVETESEGDPSLIEAAEKYGCILITNDKELKRKAKQRGIPVGYLKEDKRVFVE LLD
MGSDKIHHHHHHMEADRGRNNKVRCAVVDTNVLMYVYLNKADVVGQLREFGFSRFLITASVKRELEKLEMSLRGKEKVAA RFALKLLEHFEVVETESEGDPSLIEAAEKYGCILITNDKELKRKAKQRGIPVGYLKEDKRVFVELLD
30% MPD, MES buffer pH 6.0, VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 277K
BIOMOLECULE: 1 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT WHICH CONSISTS OF 1 CHAIN(S). SEE REMARK 350 FOR INFORMATION ON GENERATING THE BIOLOGICAL MOLECULE(S). THE BIOLOGICAL UNIT IS PROPOSED TO BE A DIMER AROUND THE CRYTALLOGRAPHIC 2-FOLD AXIS. DIMERISATION IS MEDIATED BY AN EXPOSED 2-STRAND BETA SHEET COMPRISING THE HYDROPHILIC C-TERMINAL RESIDUES OF EACH SUBUNIT, THAT BRIDGES THE GLOBULAR DOMAINS OF EACH SUBUNIT. THIS IS CONSIDERED BIOLOGICALLY SIGNIFICANT BECAUSE OF IT LEADS TO CHAIN SWAPPING BETWEEN SUBUNITS.
1. The 9-sigma difference density peak on the crystallographic 2-fold axis between residues 126 and 128 was left unmodeled, but could indicate a metal ion. 2. The 2 TLS groups correspond to globular and tail portions of protein respectively. 3. Hydrogens have been added in the riding positions.
THE BIOLOGICAL UNIT IS PROPOSED TO BE A DIMER AROUND THE CRYTALLOGRAPHIC 2-FOLD AXIS. DIMERISATION IS MEDIATED BY AN EXPOSED 2-STRAND BETA SHEET COMPRISING THE HYDROPHILIC C-TERMINAL RESIDUES OF EACH SUBUNIT, THAT BRIDGES THE GLOBULAR DOMAINS OF EACH SUBUNIT. THIS IS CONSIDERED BIOLOGICALLY SIGNIFICANT BECAUSE OF IT LEADS TO CHAIN SWAPPING BETWEEN SUBUNITS. GENERATING THE BIOMOLECULE COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. APPLY THE FOLLOWING TO CHAINS: A, W BIOMT1 1 1.000000 0.000000 0.000000 0.00000 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 BIOMT1 2 1.000000 0.000000 0.000000 0.00000 BIOMT2 2 0.000000 -1.000000 0.000000 110.69801 BIOMT3 2 0.000000 0.000000 -1.000000 -26.13300
PIN (PILT N-TERMINUS) DOMAIN, STRUCTURAL GENOMICS, JOINT CENTER FOR STRUCTURAL GENOMICS, JCSG, PROTEIN STRUCTURE INITIATIVE, PSI, TRANSLATION
MEADRGRNNKVRCAVVDTNVLMYVYLNKADVVGQLREFGFSRFLITASVKRELEKLEMSLRGKEKVAARFALKLLEHFEV VETESEGDPSLIEAAEKYGCILITNDKELKRKAKQRGIPVGYLKEDKRVFVELLD