| ST_0171 | C1q | 1PK6 | Homo sapiens | Globular Head of the Complement System Protein C1q |
| ST_0172 | C1q | 2JG9 | Homo sapiens | Crystallographic structure of human C1q globular heads (P1) |
| ST_0173 | C1q | 2KA3 | Homo sapiens | Structure of EMILIN-1 C1Q-like domain |
| ST_0174 | C1q | 2OII | Homo sapiens | Structure of EMILIN-1 C1q-like domain |
| ST_0175 | C1q | 2WNU | Homo sapiens | Complex between c1q globular heads and heparan sulfate |
| ST_0176 | C1q | 2WNV | Homo sapiens | Complex between C1q globular heads and deoxyribose |
| ST_0177 | C1q | 4OUL | Homo sapiens | Crystal structure of human Caprin-2 C1q domain |
| ST_0178 | C1q | 4OUM | Homo sapiens | Crystal structure of human Caprin-2 C1q domain |
| ST_0179 | C1q | 4OUS | Danio rerio | Crystal structure of zebrafish Caprin-2 C1q domain |
| ST_0180 | C1q | 5KC5 | Homo sapiens | Crystal structure of the Cbln1 C1q domain trimer |
| ST_0181 | C1q | 2JG8 | Homo sapiens | Crystallographic structure of human C1q globular heads complexed to phosphatidyl-serine |
| ST_0182 | C1q | 4LOR | Homo sapiens | C1s CUB1-EGF-CUB2 in complex with a collagen-like peptide from C1q |
| ST_0183 | C1q | 5HKJ | Homo sapiens | Single Chain Recombinant Globular Head of the Complement System Protein C1q |
| ST_0184 | C1q | 4QPY | Mus musculus | Crystal structure of C1QL2 |
| ST_0185 | C1q | 4QQ2 | Mus musculus | Crystal structure of C1QL1 |
| ST_0186 | C1q | 4QQH | Mus musculus | Crystal structure of C1QL3 in space group H32 |
| ST_0187 | C1q | 4QQL | Mus musculus | Crystal structure of C1QL3 in P1 space group |
| ST_0188 | C1q | 4QQO | Mus musculus | Crystal structure of C1QL3 mutant D205A |
| ST_0189 | C1q | 4QQP | Mus musculus | Crystal structure of C1QL3 mutant D207A |
| ST_0190 | C1q | 5HZF | Homo sapiens | Single Chain Recombinant Globular Head of the Complement System Protein C1q in complex with magnesium |
| ST_0191 | C1q | 5KCA | Homo sapiens | Crystal structure of the Cbln1 C1q domain trimer in complex with the amino-terminal domain (ATD) of iGluR Delta-2 (GluD2) |
| ST_0192 | C1q | 1L6X | Homo sapiens | FC FRAGMENT OF RITUXIMAB BOUND TO A MINIMIZED VERSION OF THE B-DOMAIN FROM PROTEIN A CALLED Z34C |
| ST_0193 | C1q | 4LMF | Homo sapiens | C1s CUB1-EGF-CUB2 |
| ST_0194 | C1q | 4LOS | Homo sapiens | C1s CUB2-CCP1 |
| ST_0195 | C1q | 4LOT | Homo sapiens | C1s CUB2-CCP1-CCP2 |
| ST_0196 | C1q | 5V43 | Homo sapiens | Engineered human IgG Fc domain aglyco801 |
| ST_0197 | C1q | 5V4E | Homo sapiens | Engineered human IgG Fc domain glyco801 (Fc801) |
| ST_0198 | C1q | 4D7Y | Mus musculus | Crystal structure of mouse C1QL1 globular domain |
| ST_0199 | C1q | 5H48 | Rattus norvegicus | Crystal structure of Cbln1 |
| ST_0200 | C1q | 5H49 | Rattus norvegicus | Crystal structure of Cbln1 |
| ST_0201 | C1q | 6FCZ | Homo sapiens | Model of gC1q-Fc complex based on 7A EM map |
| ST_0202 | C1q | 5H4B | Mus musculus | Crystal structure of Cbln4 |
| ST_0203 | C1q | 5H4C | Rattus norvegicus | Crystal structure of Cbln4 |
| ST_0204 | C1q | 5J97 | Homo sapiens | Dimerization domain of cytoplasmic activation/proliferation-associated protein-2 (caprin-2) |
| ST_0205 | C1q | 1C28 | Mus musculus | THE CRYSTAL STRUCTURE OF A COMPLMENT-1Q FAMILY PROTEIN SUGGESTS AN EVOLUTIONARY LINK TO TUMOR NECROSIS FACTOR |
| ST_0206 | C1q | 1C3H | Mus musculus | ACRP30 CALCIUM COMPLEX |
| ST_0207 | C1q | 4F3J | Homo sapiens | Crystal Structure of Trimeric gC1q Domain of Human C1QTNF5 associated with Late-onset Retinal Macular Degeneration |
| ST_0208 | C1q | 4DOU | Homo sapiens | Crystal Structure of a Single-chain Trimer of Human Adiponectin Globular Domain |
| ST_0209 | C1q | 4NN0 | Homo sapiens | Crystal structure of the C1QTNF5 globular domain in space group P63 |
| ST_0210 | C1q | 5U52 | Homo sapiens | 2 helix minimized version of the B-domain from Protein A (Z34C0 bound to IgG1 Fc (monoclinic form) |
| ST_0211 | C1q | 3GMN | Mus musculus | Structure of mouse CD1d in complex with C10Ph |