1cq9 Summary



The structure was published by Ravishankar, R., Thomas, C.J., Suguna, K., Surolia, A., and Vijayan, M., in 2001 in a paper entitled "Crystal structures of the peanut lectin-lactose complex at acidic pH: retention of unusual quaternary structure, empty and carbohydrate bound combining sites, molecular mimicry and crystal packing directed by interactions at the combining site." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 3.5 Å and deposited in 1999.

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

This PDB entry contains multiple copies of the structure of PROTEIN (PEANUT LECTIN).

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 homotetramers.

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 PROTEIN (PEANUT LECTIN) P02872 (24-259) (LECG_ARAHY)search Arachis hypogaeasearch 93% 236 98%
B PROTEIN (PEANUT LECTIN) P02872 (24-259) (LECG_ARAHY)search Arachis hypogaeasearch 93% 236 98%
C PROTEIN (PEANUT LECTIN) P02872 (24-259) (LECG_ARAHY)search Arachis hypogaeasearch 93% 236 98%
D PROTEIN (PEANUT LECTIN) P02872 (24-259) (LECG_ARAHY)search Arachis hypogaeasearch 93% 236 98%

This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
P02872 (24 - 259) PROTEIN (PEANUT LECTIN) Arachis hypogaea

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
A, B, C, D (P02872) Legume lectinssearch Jelly Rollssearch PF00139: Legume lectin domainsearch

Chain ID Molecular function (GO)
A, B, C, D (P02872) carbohydrate bindingsearch metal ion bindingsearch

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