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Open data
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Basic information
| Entry | ![]() | |||||||||
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| Title | Integrin alpha-v beta-3 in complex with rhodostomin | |||||||||
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Keywords | disintegrin / complex / MEMBRANE PROTEIN | |||||||||
| Function / homology | Function and homology informationintegrin alphav-beta8 complex / integrin alphav-beta6 complex / transforming growth factor beta production / negative regulation of entry of bacterium into host cell / integrin alphav-beta5 complex / opsonin binding / integrin alphav-beta1 complex / Cross-presentation of particulate exogenous antigens (phagosomes) / extracellular matrix protein binding / regulation of serotonin uptake ...integrin alphav-beta8 complex / integrin alphav-beta6 complex / transforming growth factor beta production / negative regulation of entry of bacterium into host cell / integrin alphav-beta5 complex / opsonin binding / integrin alphav-beta1 complex / Cross-presentation of particulate exogenous antigens (phagosomes) / extracellular matrix protein binding / regulation of serotonin uptake / positive regulation of adenylate cyclase-inhibiting opioid receptor signaling pathway / tube development / alpha9-beta1 integrin-ADAM8 complex / regulation of trophoblast cell migration / integrin alphaIIb-beta3 complex / regulation of postsynaptic neurotransmitter receptor diffusion trapping / maintenance of postsynaptic specialization structure / alphav-beta3 integrin-vitronectin complex / regulation of extracellular matrix organization / platelet alpha granule membrane / Laminin interactions / positive regulation of glomerular mesangial cell proliferation / integrin alphav-beta3 complex / negative regulation of lipoprotein metabolic process / alphav-beta3 integrin-PKCalpha complex / entry into host cell by a symbiont-containing vacuole / fibrinogen binding / positive regulation of small GTPase mediated signal transduction / alphav-beta3 integrin-HMGB1 complex / vascular endothelial growth factor receptor 2 binding / negative regulation of lipid transport / regulation of phagocytosis / positive regulation of vascular endothelial growth factor signaling pathway / Elastic fibre formation / cell-substrate junction assembly / alphav-beta3 integrin-IGF-1-IGF1R complex / positive regulation of bone resorption / transforming growth factor beta binding / Hydrolases; Acting on peptide bonds (peptidases); Metalloendopeptidases / platelet-derived growth factor receptor binding / mesodermal cell differentiation / glycinergic synapse / extracellular matrix binding / filopodium membrane / regulation of release of sequestered calcium ion into cytosol / positive regulation of vascular endothelial growth factor receptor signaling pathway / positive regulation of cell adhesion mediated by integrin / apolipoprotein A-I-mediated signaling pathway / negative regulation of low-density lipoprotein particle clearance / regulation of bone resorption / angiogenesis involved in wound healing / wound healing, spreading of epidermal cells / apoptotic cell clearance / positive regulation of fibroblast migration / integrin complex / cell adhesion mediated by integrin / smooth muscle cell migration / Molecules associated with elastic fibres / heterotypic cell-cell adhesion / positive regulation of smooth muscle cell migration / negative chemotaxis / Mechanical load activates signaling by PIEZO1 and integrins in osteocytes / Syndecan interactions / positive regulation of cell-matrix adhesion / p130Cas linkage to MAPK signaling for integrins / regulation of postsynaptic neurotransmitter receptor internalization / cellular response to insulin-like growth factor stimulus / positive regulation of osteoblast proliferation / protein disulfide isomerase activity / microvillus membrane / cell-substrate adhesion / platelet-derived growth factor receptor signaling pathway / PECAM1 interactions / GRB2:SOS provides linkage to MAPK signaling for Integrins / endodermal cell differentiation / TGF-beta receptor signaling activates SMADs / fibronectin binding / lamellipodium membrane / positive regulation of intracellular signal transduction / negative regulation of macrophage derived foam cell differentiation / negative regulation of lipid storage / blood coagulation, fibrin clot formation / ECM proteoglycans / Integrin cell surface interactions / immunoglobulin complex / negative regulation of endothelial cell apoptotic process / vasculogenesis / positive regulation of T cell migration / specific granule membrane / coreceptor activity / phagocytic vesicle / ERK1 and ERK2 cascade / cellular response to platelet-derived growth factor stimulus / extrinsic apoptotic signaling pathway in absence of ligand / Integrin signaling / positive regulation of endothelial cell proliferation / positive regulation of substrate adhesion-dependent cell spreading / substrate adhesion-dependent cell spreading / embryo implantation / positive regulation of endothelial cell migration Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) / Calloselasma rhodostoma (Malayan pit viper) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 2.78 Å | |||||||||
Authors | Wang YT / Chuang WJ | |||||||||
| Funding support | Taiwan, 1 items
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Citation | Journal: Commun Biol / Year: 2026Title: Structural basis for the differential recognition of integrin αvβ3 by rhodostomin and trimucrin. Authors: Ya-Ting Wang / Yao-Tsung Chang / Chun-Hao Huang / Ching-Ting Liau / Chiu-Yueh Chen / Woei-Jer Chuang / ![]() Abstract: Rhodostomin (Rho) and Trimucrin (Tmu) are RGD-containing disintegrins that inhibit integrins more effectively than short RGD peptides. They differ in their linker, RGD loop, and C-terminal sequences. ...Rhodostomin (Rho) and Trimucrin (Tmu) are RGD-containing disintegrins that inhibit integrins more effectively than short RGD peptides. They differ in their linker, RGD loop, and C-terminal sequences. We determined the X-ray structure of Tmu and the cryo-EM structures of integrin αvβ3 in complex with both disintegrins. Structural analysis revealed subtle differences in binding, with both adopting a rigid backbone conformation and interacting with integrin through three cooperative binding sites. Besides the conserved RGD interface, Tmu features a cluster of basic residues in its linker, while Rho has distinct C-terminal interactions. Disintegrin binding stabilizes αvβ3 in an extended-open conformation, while the β3-Y110 residue is essential for maintaining the bent state without ligands. These findings enhance our understanding of integrin recognition and inform the development of integrin-targeted therapeutics for anti-angiogenic, anti-tumor, and anti-inflammatory applications. | |||||||||
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Structure visualization
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Downloads & links
-EMDB archive
| Map data | emd_60907.map.gz | 112 MB | EMDB map data format | |
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| Header (meta data) | emd-60907-v30.xml emd-60907.xml | 22.6 KB 22.6 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_60907_fsc.xml | 12.6 KB | Display | FSC data file |
| Images | emd_60907.png | 80.4 KB | ||
| Filedesc metadata | emd-60907.cif.gz | 7.8 KB | ||
| Others | emd_60907_half_map_1.map.gz emd_60907_half_map_2.map.gz | 200.3 MB 200.3 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-60907 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-60907 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9iujMC ![]() 9lt3C ![]() 9ualC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_60907.map.gz / Format: CCP4 / Size: 216 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.06 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Half map: #2
| File | emd_60907_half_map_1.map | ||||||||||||
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| Density Histograms |
-Half map: #1
| File | emd_60907_half_map_2.map | ||||||||||||
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Sample components
-Entire : integrin complex
| Entire | Name: integrin complex |
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| Components |
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-Supramolecule #1: integrin complex
| Supramolecule | Name: integrin complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3 |
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| Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: Integrin alpha-V,Integrin alpha-V,Uncharacterized protein DKFZp68...
| Macromolecule | Name: Integrin alpha-V,Integrin alpha-V,Uncharacterized protein DKFZp686C11235 type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 131.412844 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: FNLDVDSPAE YSGPEGSYFG FAVDFFVPSA SSRMFLLVGA PKANTTQPGI VEGGQVLKCD WSSTRRCQPI EFDATGNRDY AKDDPLEFK SHQWFGASVR SKQDKILACA PLYHWRTEMK QEREPVGTCF LQDGTKTVEY APCRSQDIDA DGQGFCQGGF S IDFTKADR ...String: FNLDVDSPAE YSGPEGSYFG FAVDFFVPSA SSRMFLLVGA PKANTTQPGI VEGGQVLKCD WSSTRRCQPI EFDATGNRDY AKDDPLEFK SHQWFGASVR SKQDKILACA PLYHWRTEMK QEREPVGTCF LQDGTKTVEY APCRSQDIDA DGQGFCQGGF S IDFTKADR VLLGGPGSFY WQGQLISDQV AEIVSKYDPN VYSIKYNNQL ATRTAQAIFD DSYLGYSVAV GDFNGDGIDD FV SGVPRAA RTLGMVYIYD GKNMSSLYNF TGEQMAAYFG FSVAATDING DDYADVFIGA PLFMDRGSDG KLQEVGQVSV SLQ RASGDF QTTKLNGFEV FARFGSAIAP LGDLDQDGFN DIAIAAPYGG EDKKGIVYIF NGRSTGLNAV PSQILEGQWA ARSM PPSFG YSMKGATDID KNGYPDLIVG AFGVDRAILY RARPVITVNA GLEVYPSILN QDNKTCSLPG TALKVSCFNV RFCLK ADGK GVLPRKLNFQ VELLLDKLKQ KGAIRRALFL YSRSPSHSKN MTISRGGLMQ CEELIAYLRD ESEFRDKLTP ITIFME YRL DYRTAADTTG LQPILNQFTP ANISRQAHIL LDCGEDNVCK PKLEVSVDSD QKKIYIGDDN PLTLIVKAQN QGEGAYE AE LIVSIPLQAD FIGVVRNNEA LARLSCAFKT ENQTRQVVCD LGNPMKAGTQ LLAGLRFSVH QQSEMDTSVK FDLQIQSS N LFDKVSPVVS HKVDLAVLAA VEIRGVSSPD HVFLPIPNWE HKENPETEED VGPVVQHIYE LRNNGPSSFS KAMLHLQWP YKYNNNTLLY ILHYDIDGPM NCTSDMEINP LRIKISSLQT TEKNDTVAGQ GERDHLITKR DLALSEGDIH TLGCGVAQCL KIVCQVGRL DRGKSAILYV KSLLWTETFM NKENQNHSYS LKSSASFNVI EFPYKNLPIE DITNSTLVTT NVTWGIQPDK T HTCPPCPA PELLGGPSVF LFPPKPKDTL MISRTPEVTC VVVDVSHEDP EVKFNWYVDG VEVHNAKTKP REEQYNSTYR VV SVLTVLH QDWLNGKEYK CKVSNKALPA PIEKTISKAK GQPREPQVYT LPPSREEMTK NQVSLTCLVK GFYPSDIAVE WES NGQPEN NYKTTPPVLD SDGSFFLTSK LTVDKSRWQQ GNVFSCSVMH EALHNHYTQK SLSLSPGK UniProtKB: Integrin alpha-V, Uncharacterized protein DKFZp686C11235 |
-Macromolecule #2: Integrin beta-3,Integrin beta-3,Uncharacterized protein DKFZp686C11235
| Macromolecule | Name: Integrin beta-3,Integrin beta-3,Uncharacterized protein DKFZp686C11235 type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 102.180289 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: GPNICTTRGV SSCQQCLAVS PMCAWCSDEA LPLGSPRCDL KENLLKDNCA PESIEFPVSE ARVLEDRPLS DKGSGDSSQV TQVSPQRIA LRLRPDDSKN FSIQVRQVED YPVDIYYLMD LSYSMKDDLW SIQNLGTKLA TQMRKLTSNL RIGFGAFVDK P VSPYMYIS ...String: GPNICTTRGV SSCQQCLAVS PMCAWCSDEA LPLGSPRCDL KENLLKDNCA PESIEFPVSE ARVLEDRPLS DKGSGDSSQV TQVSPQRIA LRLRPDDSKN FSIQVRQVED YPVDIYYLMD LSYSMKDDLW SIQNLGTKLA TQMRKLTSNL RIGFGAFVDK P VSPYMYIS PPEALENPCY DMKTTCLPMF GYKHVLTLTD QVTRFNEEVK KQSVSRNRDA PEGGFDAIMQ ATVCDEKIGW RN DASHLLV FTTDAKTHIA LDGRLAGIVQ PNDGQCHVGS DNHYSASTTM DYPSLGLMTE KLSQKNINLI FAVTENVVNL YQN YSELIP GTTVGVLSMD SSNVLQLIVD AYGKIRSKVE LEVRDLPEEL SLSFNATCLN NEVIPGLKSC MGLKIGDTVS FSIE AKVRG CPQEKEKSFT IKPVGFKDSL IVQVTFDCDC ACQAQAEPNS HRCNNGNGTF ECGVCRCGPG WLGSQCECSE EDYRP SQQD ECSPREGQPV CSQRGECLCG QCVCHSSDFG KITGKYCECD DFSCVRYKGE MCSGHGQCSC GDCLCDSDWT GYYCNC TTR TDTCMSSNGL LCSGRGKCEC GSCVCIQPGS YGDTCEKCPT CPDACTFKKE CVECKKFDRG ALHDENTCNR YCRDEIE SV KELKDTGKDA VNCTYKNEDD CVVRFQYYED SSGKSILYVV EEPECPKGPD DKTHTCPPCP APELLGGPSV FLFPPKPK D TLMISRTPEV TCVVVDVSHE DPEVKFNWYV DGVEVHNAKT KPREEQYNST YRVVSVLTVL HQDWLNGKEY KCKVSNKAL PAPIEKTISK AKGQPREPQV YTLPPSREEM TKNQVSLYCL VKGFYPSDIA VEWESNGQPE NNYKTTPPVL DSDGSFFLYS KLTVDKSRW QQGNVFSCSV MHEALHNHYT QKSLSLSPGK UniProtKB: Integrin beta-3, Uncharacterized protein DKFZp686C11235 |
-Macromolecule #3: Disintegrin rhodostomin
| Macromolecule | Name: Disintegrin rhodostomin / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Calloselasma rhodostoma (Malayan pit viper) |
| Molecular weight | Theoretical: 7.341361 KDa |
| Recombinant expression | Organism: Komagataella pastoris (fungus) |
| Sequence | String: GKECDCSSPE NPCCDAATCK LRPGAQCGEG LCCEQCKFSR AGKICRIPRG DMPDDRCTGQ SADCPRYH UniProtKB: Zinc metalloproteinase/disintegrin |
-Macromolecule #7: CALCIUM ION
| Macromolecule | Name: CALCIUM ION / type: ligand / ID: 7 / Number of copies: 7 / Formula: CA |
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| Molecular weight | Theoretical: 40.078 Da |
-Macromolecule #8: 2-acetamido-2-deoxy-beta-D-glucopyranose
| Macromolecule | Name: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 8 / Number of copies: 2 / Formula: NAG |
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| Molecular weight | Theoretical: 221.208 Da |
| Chemical component information | ![]() ChemComp-NAG: |
-Macromolecule #9: MAGNESIUM ION
| Macromolecule | Name: MAGNESIUM ION / type: ligand / ID: 9 / Number of copies: 1 / Formula: MG |
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| Molecular weight | Theoretical: 24.305 Da |
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.4 |
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | TFS KRIOS |
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| Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 55.4 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.8 µm / Nominal defocus min: 1.2 µm |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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About Yorodumi




Keywords
Homo sapiens (human)
Calloselasma rhodostoma (Malayan pit viper)
Authors
Taiwan, 1 items
Citation



















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Y (Row.)
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Komagataella pastoris (fungus)
Processing
FIELD EMISSION GUN


