Relative intensities of recognition factors at two combining sites of Ralstonia solanacearum lectin (RSL) for accommodating lFucα1→, dManα1→ and Galβ1→3/4GlcNAc glycotopes

Albert M. Wu, Jia Hua Liu, Anthony Herp, Dvora Sudakevitz, Nechama Gilboa-Garber

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Owing to the weak reactivities of monomeric dManα1 and Galβ1→3/4GlcNAcβ (Iβ/IIβ) glycotopes with Ralstonia solanacearum lectin (RSL), their recognition roles were previously ignored. In this study, the interaction intensities of RSL toward four monomeric glycotopes lFucα1→, dManα1→ and Iβ/IIβ within two combining sites were established by both enzyme-linked lectinosorbent and inhibition assays. It was found that high density of lFucα1→ complex enhanced the recognition intensities at lFucα1→ site, polyvalent dManα1→ was essential for binding at the dManα1→ site and polyvalent I β/IIβ was required at lFucα1→ site. The peculiar recognition systems of RSL are very different from other well known microbial lectins.

Original languageEnglish
Pages (from-to)1294-1299
Number of pages6
JournalFEBS Letters
Volume586
Issue number9
DOIs
StatePublished - 7 May 2012

Bibliographical note

Funding Information:
This work was supported by Grants from the Chang-Gung Medical Research Project (CMRP No. 180482 and 170443), Kwei-san, Tao-yuan, Taiwan, the National Science Council (NSC 100-2320-B-182-027 and 100-2320-B-182-028), Taipei, Taiwan. The authors thank for Ms. Yu Ping Gong’s technical assistance and data collection.

Funding

This work was supported by Grants from the Chang-Gung Medical Research Project (CMRP No. 180482 and 170443), Kwei-san, Tao-yuan, Taiwan, the National Science Council (NSC 100-2320-B-182-027 and 100-2320-B-182-028), Taipei, Taiwan. The authors thank for Ms. Yu Ping Gong’s technical assistance and data collection.

FundersFunder number
CMRP170443, 180482
Chang-Gung Medical Research Project
National Science Council100-2320-B-182-028, 100-2320-B-182-027

    Keywords

    • ABH active O-glycans
    • Carbohydrate recognition domain
    • Mannan
    • Ralstonia solanacearum lectin

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