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Crystallization and initial crystal characterization of the C-terminal phosphoglycerate mutase homology domain of Sts-1
Journal article   Open access   Peer reviewed

Crystallization and initial crystal characterization of the C-terminal phosphoglycerate mutase homology domain of Sts-1

Holly Kleinman, Bradley Ford, James Keller, Nick Carpino and Nicolas Nassar
Acta crystallographica. Section F, Structural biology and crystallization communications, Vol.62(Pt 3), pp.218-220
03/2006
DOI: 10.1107/S1744309106003320
PMCID: PMC2197191
PMID: 16511305
url
https://doi.org/10.1107/S1744309106003320View
Published (Version of record) Open Access

Abstract

The C-terminal domain of the signaling protein Sts-1 has been expressed in bacteria, purified and crystallized and diffraction data sets have been collected from two crystal forms. Sts-1 is a multidomain protein that plays an important role in T-cell signaling. Sts-1 contains a ubiquitin-association (UBA) domain at the N-terminus, followed by an Src homology-3 (SH3) domain and a C-terminal domain that shares sequence homology to phosphoglycerate mutases (PGMs). The C-­terminal domain of Sts-1, Sts-1 PGM , crystallizes in space group C 2 with two different crystal forms. The first crystal form contains two or three Sts-1 PGM molecules in the asymmetric unit and diffracts to 1.82 Å resolution, with unit-cell parameters a = 116.2, b = 74.3, c = 100.1 Å, α = γ = 90, β = 101.5°. The second crystal form contains four or six Sts-1 PGM molecules in the asymmetric unit, with unit-cell parameters a = 214.9, b = 75.1, c = 116.4 Å, α = γ = 90, β = 111.6°. Greater than 95% complete native and SeMet data sets have been collected and structure determination using the multiple anomalous dispersion (MAD) technique is ongoing.
phosphoglycerate mutase signaling protein TCR Crystallization Communications Sts-1

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