What does this research mean for the field?

Heparin and chondroitin sulfate glycosaminoglycans bind to a surface within a single CXCL8 monomer rather than across the dimer interface. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To resolve the structural binding geometry and spatial organization of glycosaminoglycans complexed with the inflammatory chemokine CXCL8.

August 22, 2026Biochemical JournalOpen Access

Solution Structures of Glycosaminoglycan-bound CXCL8 Complexes Determined by Small-Angle X-Ray Scattering (SAXS)

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Authors

MWMark A White BMBryon Mahler PJPrem Raj B Joseph

Discussion

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Overview

Structural analysis reveals that glycosaminoglycans bind within individual monomer units of the CXCL8 chemokine dimer, clarifying how cell-surface sugars regulate immune signaling.

Key Points

To resolve the structural binding geometry and spatial organization of glycosaminoglycans complexed with the inflammatory chemokine CXCL8.
Characterized low-resolution solution structures of CXCL8 dimers complexed with heparin and chondroitin sulfate octasaccharides using small-angle X-ray scattering (SAXS).
Conducted NMR paramagnetic relaxation enhancement (PRE) experiments on heparin-bound CXCL8 monomer and dimer complexes to map contact surfaces.
SAXS analyses demonstrated that both heparin and chondroitin sulfate octasaccharides bind exclusively within a single monomer surface and do not bridge across the dimer interface.
NMR PRE measurements confirmed consistent monomer-specific binding surfaces across both monomeric and dimeric CXCL8-heparin complexes.

Cite This Study

White et al. (2026) studied this question.

synapsesocial.com/papers/6a895f62ca7ade938187dfdb https://doi.org/10.1042/bcj20260348

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August 22, 2026Biochemical JournalOpen Access

Solution Structures of Glycosaminoglycan-bound CXCL8 Complexes Determined by Small-Angle X-Ray Scattering (SAXS)

View Full Paper

Ask AI

Bookmark

Authors

MWMark A White BMBryon Mahler PJPrem Raj B Joseph

Discussion

Member takes

Overview

Structural analysis reveals that glycosaminoglycans bind within individual monomer units of the CXCL8 chemokine dimer, clarifying how cell-surface sugars regulate immune signaling.

Key Points

To resolve the structural binding geometry and spatial organization of glycosaminoglycans complexed with the inflammatory chemokine CXCL8.
Characterized low-resolution solution structures of CXCL8 dimers complexed with heparin and chondroitin sulfate octasaccharides using small-angle X-ray scattering (SAXS).
Conducted NMR paramagnetic relaxation enhancement (PRE) experiments on heparin-bound CXCL8 monomer and dimer complexes to map contact surfaces.
SAXS analyses demonstrated that both heparin and chondroitin sulfate octasaccharides bind exclusively within a single monomer surface and do not bridge across the dimer interface.
NMR PRE measurements confirmed consistent monomer-specific binding surfaces across both monomeric and dimeric CXCL8-heparin complexes.

Cite This Study

White et al. (2026) studied this question.

synapsesocial.com/papers/6a895f62ca7ade938187dfdb https://doi.org/10.1042/bcj20260348

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