1sll Summary



The structure was published by Luo, Y., Li, S.C., Chou, M.Y., Li, Y.T., and Luo, M., in 1998 in a paper entitled "The crystal structure of an intramolecular trans-sialidase with a NeuAc alpha2-->3Gal specificity." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 2.0 Å and deposited in 1997.

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

The PDB entry contains the structure of SIALIDASE L. This molecule has the UniProt identifier Q27701 (NANL_MACDE)search. The sample contained 679 residues which is 92% of the natural sequence. Out of 679 residues 679 were observed and are deposited in the PDB.

The molecule is most likely monomeric.

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 SIALIDASE L Q27701 (81-759) (NANL_MACDE)search Macrobdella decorasearch 92% 679 100%

This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
Q27701 (81 - 759) SIALIDASE L Macrobdella decora

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
A (Q27701) Leech intramolecular trans-sialidase, N-terminal domainsearch, Sialidases (neuraminidases)search Jelly Rollssearch, Neuraminidasesearch, Intramolecular Trans-sialidase; Domain 3search PF02973: Sialidase, N-terminal domainsearch

Chain ID Molecular function (GO) Biological process (GO) Cellular component (GO)
A (Q27701) exo-alpha-sialidase activitysearch hydrolase activitysearch anhydrosialidase activitysearch hydrolase activity, acting on glycosyl bondssearch lyase activitysearch carbohydrate metabolic processsearch metabolic processsearch extracellular regionsearch

Chain InterPro annotation
A Laminin G domainsearch Glycoside hydrolase, family 33, N-terminalsearch search Sialidasessearch Concanavalin A-like lectin/glucanase domainsearch Trans-sialidase, domain 3search Sialidase familysearch