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| Information on 1fsu_*_293 |
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Loop code: 1fsu_*_293 PDB: 1fsu Chain: * Type: EH beta-alpha |
Loop Start: 293 Loop Length: 23 Sec Struct Nt length: 7 Sec Struct Ct length: 4 Structure geometry
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| Sequence: | TVFIFSTDNGGQTLAGGNNWPLRGRKWSLWEGGV |
| Sec Struct: | EEEEEEESS---GGGT---TTSS--TTSSSHHHH |
| PDB ligands within a cut-off distance of 6 Å in this loop |
| Ligands | Residue | atSS | atLOOP |
| ALS2-AMINO-3-OXO-4-SULFO-BUTYRIC ACID | D - 300 | 0 | 1 |
| CACALCIUM ION | D - 300 | 0 | 1 |
| ALS2-AMINO-3-OXO-4-SULFO-BUTYRIC ACID | N - 301 | 0 | 1 |
| CACALCIUM ION | N - 301 | 0 | 1 |
| ALS2-AMINO-3-OXO-4-SULFO-BUTYRIC ACID | K - 318 | 0 | 1 |
| CACALCIUM ION | K - 318 | 0 | 1 |
| ALS2-AMINO-3-OXO-4-SULFO-BUTYRIC ACID | W - 319 | 0 | 1 |
| PDB Site Annotation |
| Site | Residue | atSS | atLOOP |
| MEB - THIS IS THE METAL BINDING SITE. THE METAL WAS IDENTIFIED AS CALCIUM BY ITS PEAK HEIGHT IN DIFFERENCE ELECTRON DENSITY MAPS, BY SUCCESSIVE TEMPERATURE FACTOR REFINEMENT AND BY THE NATURE AND GEOMETRY OF THE COORDINATING LIGANDS. | D - 300 | 0 | 1 |
| MEB - THIS IS THE METAL BINDING SITE. THE METAL WAS IDENTIFIED AS CALCIUM BY ITS PEAK HEIGHT IN DIFFERENCE ELECTRON DENSITY MAPS, BY SUCCESSIVE TEMPERATURE FACTOR REFINEMENT AND BY THE NATURE AND GEOMETRY OF THE COORDINATING LIGANDS. | N - 301 | 0 | 1 |
| SAL - THESE RESIDUES AND THE METAL ION STABILIZE THE SULFATE ESTER RESIDUE 91. TOGETHER WITH THE METAL BINDING SITE THIS FORMS THE CENTER OF THE CATALYTIC ACTIVE SITE. | K - 318 | 0 | 1 |
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