Crystal structure of an exo-alpha-1,6-mannosidase (bacova_03347) from bacteroides ovatus at 1.60 a resolution

Joint Center for Structural Genomics (JCSG)

Crystal structure of a putative glycosyl hydrolase (BACOVA_03347) from Bacteroides ovatus at 1.60 A resolution

GSNR(MSE)TE(MSE)HVCLADAIQKDNRPEISNRLFRSNAVEKEILRVQKLLKNAKLAW(MSE)FTNCFPNTLDTTVHF
RKGSDGKPDTFVYTGDIHA(MSE)WLRDSGAQVWPYVQLANSDPELKE(MSE)LAGVILRQFKCINIDPYANAFNDGAIP
DGHW(MSE)SDLTD(MSE)KPELHERKWEIDSLCYPLRLAYHYWKTTGDASIFNEEWIQAITNVLKTFKEQQRKDGVGPY
KFQRKTERALDTVSNDGLGAPVKPVGLIVSSFRPSDDATTLQFLVPSNFFAVSSLRKAAEILEKVNKKTALSKECKDLAQ
EVETALKKYAVYNHPKYGKIYAFEVDGFGNHHL(MSE)DDANVPSLLA(MSE)PYLGDVNVNDPIYQNTRRFVWSEDNPY
FFKGKAGEGIGGPHIGYD(MSE)VWP(MSE)SI(MSE)(MSE)KAFTSQNDAEIKTCIK(MSE)L(MSE)DTDAGTGF
(MSE)HESFHKDNPKKFTRAWFAWQNTLFGELILKLVNEGKVDLLNSIQ

GSNRMTEMHVCLADAIQKDNRPEISNRLFRSNAVEKEILRVQKLLKNAKLAWMFTNCFPNTLDTTVHFRKGSDGKPDTFV
YTGDIHAMWLRDSGAQVWPYVQLANSDPELKEMLAGVILRQFKCINIDPYANAFNDGAIPDGHWMSDLTDMKPELHERKW
EIDSLCYPLRLAYHYWKTTGDASIFNEEWIQAITNVLKTFKEQQRKDGVGPYKFQRKTERALDTVSNDGLGAPVKPVGLI
VSSFRPSDDATTLQFLVPSNFFAVSSLRKAAEILEKVNKKTALSKECKDLAQEVETALKKYAVYNHPKYGKIYAFEVDGF
GNHHLMDDANVPSLLAMPYLGDVNVNDPIYQNTRRFVWSEDNPYFFKGKAGEGIGGPHIGYDMVWPMSIMMKAFTSQNDA
EIKTCIKMLMDTDAGTGFMHESFHKDNPKKFTRAWFAWQNTLFGELILKLVNEGKVDLLNSIQ

20.00% PEG-6000, 0.1M Bicine pH 9.0, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K

THIS CONSTRUCT (26-487) WAS EXPRESSED WITH THE PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE TAG WAS REMOVED WITH TEV PROTEASE LEAVING ONLY A GLYCINE (0) FOLLOWED BY THE TARGET SEQUENCE.

1. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2. A MET-INHIBITION PROTOCOL WAS USED FOR SELENOMETHIONINE INCORPORATION DURING PROTEIN EXPRESSION. THE OCCUPANCY OF THE SE ATOMS IN THE MSE RESIDUES WAS REDUCED TO 0.75 TO ACCOUNT FOR THE REDUCED SCATTERING POWER DUE TO PARTIAL S-MET INCORPORATION. 3. ATOM RECORDS CONTAIN SUM OF TLS AND RESIDUAL B FACTORS. ANISOU RECORDS CONTAIN SUM OF TLS AND RESIDUAL U FACTORS. 4. WATERS WERE EXCLUDED FROM AUTOMATIC TLS ASSIGNMENT. 5. ETHYLENE GLYCOL (EDO) AND POLYETHYLENE GLYCOL (PGE) FROM THE CRYSTALLIZATION/CRYOPROTECTANT SOLUTIONS HAVE BEEN MODELED INTO THE SOLVENT STRUCTURE.

CRYSTAL PACKING ANALYSIS AND SIZE-EXCLUSION CHROMATOGRAPHY COUPLED WITH STATIC LIGHT SCATTERING SUPPORTS THE ASSIGNMENT OF A DIMER AS THE SIGNIFICANT OLIGOMERIC STATE IN SOLUTION.

STRUCTURAL GENOMICS, JOINT CENTER FOR STRUCTURAL GENOMICS, JCSG, PROTEIN STRUCTURE INITIATIVE, PSI-BIOLOGY, HYDROLASE

SNRMTEMHVCLADAIQKDNRPEISNRLFRSNAVEKEILRVQKLLKNAKLAWMFTNCFPNTLDTTVHFRKGSDGKPDTFVY
TGDIHAMWLRDSGAQVWPYVQLANSDPELKEMLAGVILRQFKCINIDPYANAFNDGAIPDGHWMSDLTDMKPELHERKWE
IDSLCYPLRLAYHYWKTTGDASIFNEEWIQAITNVLKTFKEQQRKDGVGPYKFQRKTERALDTVSNDGLGAPVKPVGLIV
SSFRPSDDATTLQFLVPSNFFAVSSLRKAAEILEKVNKKTALSKECKDLAQEVETALKKYAVYNHPKYGKIYAFEVDGFG
NHHLMDDANVPSLLAMPYLGDVNVNDPIYQNTRRFVWSEDNPYFFKGKAGEGIGGPHIGYDMVWPMSIMMKAFTSQNDAE
IKTCIKMLMDTDAGTGFMHESFHKDNPKKFTRAWFAWQNTLFGELILKLVNEGKVDLLNSIQ