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Yorodumi- SASDBW2: Zebrafish (Danio rerio) Arpin truncated C-terminal mutant (delta-... -
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Entry | Database: SASBDB / ID: SASDBW2 |
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Sample | Zebrafish (Danio rerio) Arpin truncated C-terminal mutant (delta-C 16).
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Function / homology | Arpin / Arp2/3-interacting proteins Arpin / negative regulation of actin nucleation / directional locomotion / negative regulation of cell migration / lamellipodium / Arpin Function and homology information |
Biological species | Danio rerio (zebrafish) |
Citation | Journal: Structure / Year: 2016 Title: Hybrid Structural Analysis of the Arp2/3 Regulator Arpin Identifies Its Acidic Tail as a Primary Binding Epitope. Authors: Susan Fetics / Aurélien Thureau / Valérie Campanacci / Magali Aumont-Nicaise / Irène Dang / Alexis Gautreau / Javier Pérez / Jacqueline Cherfils / Abstract: Arpin is a newly discovered regulator of actin polymerization at the cell leading edge, which steers cell migration by exerting a negative control on the Arp2/3 complex. Arpin proteins have an acidic ...Arpin is a newly discovered regulator of actin polymerization at the cell leading edge, which steers cell migration by exerting a negative control on the Arp2/3 complex. Arpin proteins have an acidic tail homologous to the acidic motif of the VCA domain of nucleation-promoting factors (NPFs). This tail is predicted to compete with the VCA of NPFs for binding to the Arp2/3 complex, thereby mitigating activation and/or tethering of the complex to sites of actin branching. Here, we investigated the structure of full-length Arpin using synchrotron small-angle X-ray scattering, and of its acidic tail in complex with an ankyrin repeats domain using X-ray crystallography. The data were combined in a hybrid model in which the acidic tail extends from the globular core as a linear peptide and forms a primary epitope that is readily accessible in unbound Arpin and suffices to tether Arpin to interacting proteins with high affinity. |
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Sample | Name: Zebrafish (Danio rerio) Arpin truncated C-terminal mutant (delta-C 16). |
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Buffer | Name: 50 mM HEPES 100mM NaCl 1mM TCEP / Concentration: 50.00 mM / pH: 7.5 / Composition: 100mM NaCl, 1mM TCEP |
Entity #277 | Name: Arpin-deltaC / Type: protein Description: Zebrafish (Danio rerio) Arpin truncated C-terminal mutant (delta-C 16). Formula weight: 23.78 / Num. of mol.: 1 / Source: Danio rerio / References: UniProt: Q1LWJ6 Sequence: GSRIYDNTAL LNKPVHNEKL SFTWDPIVHQ SGHGVILEGT VVDFSRHAIT DVKNRKERYN VLYIKPSRVH RRKYDSKGNE IEPNFSDTKK VNTGFLMSSF KVEAKGETDC LDERQLREIV NKEQLVKVTI KHCPREAFAF WISEAEMDKT ELEPGQEVRL KTKGDGPFIF ...Sequence: GSRIYDNTAL LNKPVHNEKL SFTWDPIVHQ SGHGVILEGT VVDFSRHAIT DVKNRKERYN VLYIKPSRVH RRKYDSKGNE IEPNFSDTKK VNTGFLMSSF KVEAKGETDC LDERQLREIV NKEQLVKVTI KHCPREAFAF WISEAEMDKT ELEPGQEVRL KTKGDGPFIF SSAKLDSGTV TKCNFAGDEN AGASWTEKIM ANKSNQENTG |
-Experimental information
Beam | Instrument name: SOLEIL SWING / City: Saint-Aubin / 国: France / Type of source: X-ray synchrotronSynchrotron / Wavelength: 0.1 Å / Dist. spec. to detc.: 1.82 mm | ||||||||||||||||||||||||||||||
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Detector | Name: AVIEX PCCD170170 / Type: CCD | ||||||||||||||||||||||||||||||
Scan | Title: Zebrafish (Danio rerio) Arpin truncated C-terminal / Measurement date: Dec 4, 2014 / Storage temperature: 15 °C / Cell temperature: 15 °C / Exposure time: 1.5 sec. / Unit: 1/nm /
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Distance distribution function P(R) | Sofotware P(R): GNOM 4.6 / Number of points: 421 /
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Result | Type of curve: single_conc Comments: Due to high concentration at the elution peak, the HPLC UV detector was saturated and the concentrations of the sample was consequently underestimated. In this case, the molecular mass is ...Comments: Due to high concentration at the elution peak, the HPLC UV detector was saturated and the concentrations of the sample was consequently underestimated. In this case, the molecular mass is overestimated when assessing this parameter from I(0) and concentration.
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