| Structural highlights
1hj9 is a 1 chain structure with sequence from Bos taurus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
| | Ligands: | , , , |
| Related: | 1aq7, 1auj, 1az8, 1bju, 1bjv, 1btp, 1c1n, 1c1o, 1c1p, 1c1q, 1c1r, 1c1s, 1c1t, 1c2d, 1c2e, 1c2f, 1c2g, 1c2h, 1c2i, 1c2j, 1c2k, 1c2l, 1c2m, 1c5p, 1c5q, 1c5r, 1c5s, 1c5t, 1c5u, 1c5v, 1c9t, 1ce5, 1cu7, 1cu8, 1cu9, 1d6r, 1ezx, 1f0t, 1f0u, 1f2s, 1g9i, 1jrs, 1jrt, 1max, 1may, 1mts, 1mtu, 1mtv, 1mtw, 1qa0, 1qb1, 1qb6, 1qb9, 1qbn, 1qbo, 1qcp, 1ql7, 1ql8, 1sbw, 1sfi, 1taw, 1tio, 1xuf, 1xug, 1xuh, 1xui, 1xuj, 1xuk, 1yyy, 1zzz, 2btc, 2bza, 2tio, 3btd, 3bte, 3btf, 3btg, 3bth, 3btk, 3btm, 3btq, 3btt, 3btw, 5ptp |
| Activity: | Trypsin, with EC number 3.4.21.4 |
| Resources: | FirstGlance, OCA, RCSB, PDBsum |
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Radiation damage is an inherent problem in protein X-ray crystallography and the process has recently been shown to be highly specific, exhibiting features such as cleavage of disulfide bonds, decarboxylation of acidic residues, increase in atomic B factors and increase in unit-cell volume. Reported here are two trypsin structures at atomic resolution (1.00 and 0.95 A), the data for which were collected at a third-generation synchrotron (ESRF) at two different beamlines. Both trypsin structures exhibit broken disulfide bonds; in particular, the bond from Cys191 to Cys220 is very sensitive to synchrotron radiation. The data set collected at the most intense beamline (ID14-EH4) shows increased structural radiation damage in terms of lower occupancies for cysteine residues, more breakage in the six disulfide bonds and more alternate conformations. It appears that high intensity and not only the total X-ray dose is most harmful to protein crystals.
Atomic resolution structures of trypsin provide insight into structural radiation damage.,Leiros HK, McSweeney SM, Smalas AO Acta Crystallogr D Biol Crystallogr. 2001 Apr;57(Pt 4):488-97. PMID:11264577[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Leiros HK, McSweeney SM, Smalas AO. Atomic resolution structures of trypsin provide insight into structural radiation damage. Acta Crystallogr D Biol Crystallogr. 2001 Apr;57(Pt 4):488-97. PMID:11264577
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