ISDA

Deposition Date 2013-05-20

Release Date 2013-12-25

Last Version Date 2024-10-09

Entry Detail

PDB ID:

3WBQ

Keywords:

Carbohydrate Binding Protein

Title:

Crystal structure of carbohydrate recognition domain of Blood Dendritic Cell Antigen-2 (BDCA2) lectin (crystal form-2)

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.30 Å

R-Value Free:

0.29

R-Value Work:

0.23

R-Value Observed:

0.23

Space Group:

C 1 2 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:C-type lectin domain family 4 member C
Gene (Uniprot):CLEC4C
Chain IDs:A, B
Chain Length:130
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:Q8WTT0 Pfam ID:PF00059

Primary Citation

Crystal structures of carbohydrate recognition domain of blood dendritic cell antigen-2 (BDCA2) reveal a common domain-swapped dimer.

Nagae, M, Ikeda, A, Kitago, Y, Matsumoto, N, Yamamoto, K, Yamaguchi, Y.Show

Proteins 82 1512 1518 (2014)

PMID: 24425442 DOI: 10.1002/prot.24504

Abstact

We report on crystal structures of a carbohydrate recognition domain (CRD) of human C-type lectin receptor blood dendritic cell antigen-2 (BDCA2). Three different crystal forms were obtained at 1.8-2.3 Å resolution. In all three, the CRD has a basic C-type lectin fold, but a long loop extends away from the core domain to form a domain-swapped dimer. The structures of the dimers from the three different crystal forms superimpose well, indicating that domain swapping and dimer formation are energetically stable. The structure of the dimer is compared with other domain-swapped proteins, and a possible regulation mechanism of BDCA2 is discussed.

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