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Crystal structure of Spatholobus parviflorus seed lectin

The structure was published by Geethanandan, K., Abhilash, J., Bharath, S.R., Sadasivan, C., and Haridas, M., in 2011 in a paper entitled "X-ray structure of a galactose-specific lectin from Spatholobous parviflorous" (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 2.04 Å and deposited in 2009.

The experimental data on which the structure is based was also deposited.

This PDB entry contains a complex of 2 biomacromolecules, namely Lectin alpha chain and Lectin beta chain.

It also contains one or more heterogenic compounds (e.g., ligands, co-factors, ions, modified amino acids, etc.); see here for a complete list.

The molecule most likely forms heterotetramers.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A Lectin alpha chain P86352 (1-251) (LECA_SPAPA)search Spatholobus parviflorussearch 100% 251 99%
C Lectin alpha chain P86352 (1-251) (LECA_SPAPA)search Spatholobus parviflorussearch 100% 251 99%
B Lectin beta chain P86353 (1-239) (LECB_SPAPA)search Spatholobus parviflorussearch 100% 239 100%
D Lectin beta chain P86353 (1-239) (LECB_SPAPA)search Spatholobus parviflorussearch 100% 239 100%


This entry contains 2 unique UniProt proteins:

UniProt accession Name Organism PDB
P86352 (1 - 251) Lectin alpha chain Spatholobus parviflorus
P86353 (1 - 239) Lectin beta chain Spatholobus parviflorus

Chain Structural classification (CATH) Sequence family (Pfam)
A, C (P86352) Jelly Rollssearch PF00139: Legume lectin domainsearch
B, D (P86353) Jelly Rollssearch PF00139: Legume lectin domainsearch

Chain ID Molecular function (GO) Biological process (GO)
A, C (P86352) carbohydrate bindingsearch metal ion bindingsearch killing of cells of other organismsearch defense response to fungussearch
B, D (P86353) metal ion bindingsearch carbohydrate bindingsearch defense response to fungussearch killing of cells of other organismsearch

Chain InterPro annotation
A, C Legume lectin, alpha chain, conserved sitesearch Legume lectin domainsearch Concanavalin A-like lectin/glucanases superfamilysearch Concanavalin A-like lectin/glucanase, subgroupsearch Lectinsearch Legume lectin, beta chain, Mn/Ca-binding sitesearch
B, D Legume lectin, alpha chain, conserved sitesearch Legume lectin domainsearch Concanavalin A-like lectin/glucanases superfamilysearch Concanavalin A-like lectin/glucanase, subgroupsearch Lectinsearch Legume lectin, beta chain, Mn/Ca-binding sitesearch