2QKI
Human C3c in complex with the inhibitor compstatin
Domain Annotation: ECOD Classification ECOD Database Homepage
Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
---|---|---|---|---|---|---|---|---|
A | A2M_N_1 | e2qkiA1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: A2M_N_1 | ECOD (1.6) |
A | KOG1366_2nd_1 | e2qkiA4 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: KOG1366_2nd_1 | ECOD (1.6) |
A | MG4 | e2qkiA2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: MG4 | ECOD (1.6) |
A | KOG1366_1st | e2qkiA3 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: KOG1366_1st | ECOD (1.6) |
A | ANATO | e2qkiA6 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: ANATO | ECOD (1.6) |
A | A2M_N_2 | e2qkiA5 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: A2M_N_2 | ECOD (1.6) |
D | A2M_N_1 | e2qkiD2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: A2M_N_1 | ECOD (1.6) |
D | KOG1366_2nd_1 | e2qkiD5 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: KOG1366_2nd_1 | ECOD (1.6) |
D | MG4 | e2qkiD3 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: MG4 | ECOD (1.6) |
D | KOG1366_1st | e2qkiD1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: KOG1366_1st | ECOD (1.6) |
D | ANATO | e2qkiD4 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: ANATO | ECOD (1.6) |
D | A2M_N_2 | e2qkiD6 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: A2M_N_2 | ECOD (1.6) |
B | A2M_C | e2qkiB3 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: A2M_C | ECOD (1.6) |
B | A2M_N | e2qkiB2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: A2M_N | ECOD (1.6) |
E | A2M_C | e2qkiE3 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: A2M_C | ECOD (1.6) |
E | A2M_N | e2qkiE2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: A2M_N | ECOD (1.6) |
C | NTR | e2qkiC1 | A: beta barrels | X: OB-fold | H: TIMP-like (From Topology) | T: TIMP-like | F: NTR | ECOD (1.6) |
C | A2M_recep | e2qkiC2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Common fold of diphtheria toxin/transcription factors/cytochrome f | F: A2M_recep | ECOD (1.6) |
F | NTR | e2qkiF1 | A: beta barrels | X: OB-fold | H: TIMP-like (From Topology) | T: TIMP-like | F: NTR | ECOD (1.6) |
F | A2M_recep | e2qkiF2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Common fold of diphtheria toxin/transcription factors/cytochrome f | F: A2M_recep | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
Protein Family Annotation Pfam Database Homepage
Chains | Accession | Name | Description | Comments | Source |
---|---|---|---|---|---|
PF17790 | Macroglobulin domain MG1 (MG1) | Macroglobulin domain MG1 | This entry represents the N-terminal macroglobulin domain found in complement proteins C3, C4 and C5. | Domain | |
PF17791 | Macroglobulin domain MG3 (MG3) | Macroglobulin domain MG3 | This entry corresponds to the MG3 domain found in complement components C3, C4 and C5. | Domain | |
PF01835 | MG2 domain (MG2) | MG2 domain | This is the MG2 (macroglobulin) domain of alpha-2-macroglobulin in eukaryotes [1]. Alpha-2-macroglobulins (A2Ms) are plasma proteins that trap and inhibit a broad range of proteases and are major components of the eukaryotic innate immune system. How ... | Domain | |
PF07703 | Alpha-2-macroglobulin bait region domain (A2M_BRD) | Alpha-2-macroglobulin bait region domain | Alpha-2-macroglobulins (A2Ms) are plasma proteins that trap and inhibit a broad range of proteases and are major components of the eukaryotic innate immune system. However, A2M-like proteins were identified in pathogenically invasive bacteria and spe ... | Domain | |
PF17789 | Macroglobulin domain MG4 (MG4) | Macroglobulin domain MG4 | This domain is MG4 found in complement C3 and C5 proteins. | Domain | |
PF00207 | Alpha-2-macroglobulin family (A2M) | Alpha-2-macroglobulin family | - | Family | |
PF01759 | UNC-6/NTR/C345C module (NTR) | UNC-6/NTR/C345C module | Sequence similarity between netrin UNC-6 and C345C complement protein family members, and hence the existence of the UNC-6 module, was first reported in [1]. Subsequently, many additional members of the family were identified on the basis of sequence ... | Domain | |
PF07677 | A-macroglobulin receptor binding domain (A2M_recep) | A-macroglobulin receptor binding domain | This family includes the receptor binding domain region of the alpha-2-macroglobulin family. | Domain | |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
Pharos: Disease Associations Pharos Homepage Annotation
Protein Modification Annotation
Modified Residue(s) | ||
---|---|---|
Chain | Residue(s) | Description |
ACE | AA0041 , AA0042 , AA0043 , AA0044 , AA0045 , AA0046 , AA0049 , AA0050 , AA0051 , AA0052 , AA0053 , AA0054 , AA0354 :  N-acetyl-L-alanine MOD:00050 , N-acetyl-L-aspartic acid MOD:00051 , N-acetyl-L-cysteine MOD:00052 , N-acetyl-S-archeol-cysteine MOD:00897 , N-acetyl-L-glutamic acid MOD:00053 , N-acetyl-L-glutamine MOD:00054 , N-acetylglycine MOD:00055 , N-acetyl-L-methionine MOD:00058 , N-acetyl-L-proline MOD:00059 , N-acetyl-L-serine MOD:00060 , N,O-diacetylated L-serine MOD:00648 , N-acetyl-L-threonine MOD:00061 , N-acetyl-L-tyrosine MOD:00062 , N-acetyl-L-valine MOD:00063 , N2-acetyl-L-arginine MOD:00359 | :  |
NH2 | AA0041 , AA0042 , AA0043 , AA0044 , AA0045 , AA0046 , AA0049 , AA0050 , AA0051 , AA0052 , AA0053 , AA0054 , AA0354 , AA0081 , AA0083 , AA0084 , AA0086 , AA0087 , AA0088 , AA0090 , AA0091 , AA0092 , AA0093 , AA0095 , AA0096 , AA0097 , AA0098 , AA0099 , AA0100 :  N-acetyl-L-alanine MOD:00050 , N-acetyl-L-aspartic acid MOD:00051 , N-acetyl-L-cysteine MOD:00052 , N-acetyl-S-archeol-cysteine MOD:00897 , N-acetyl-L-glutamic acid MOD:00053 , N-acetyl-L-glutamine MOD:00054 , N-acetylglycine MOD:00055 , N-acetyl-L-methionine MOD:00058 , N-acetyl-L-proline MOD:00059 , N-acetyl-L-serine MOD:00060 , N,O-diacetylated L-serine MOD:00648 , N-acetyl-L-threonine MOD:00061 , N-acetyl-L-tyrosine MOD:00062 , N-acetyl-L-valine MOD:00063 , N2-acetyl-L-arginine MOD:00359 , L-alanine amide MOD:00090 , L-asparagine amide MOD:00092 , L-aspartic acid 1-amide MOD:00093 , L-glutamine amide MOD:00095 , L-glutamic acid 1-amide MOD:00096 , glycine amide MOD:00097 , L-isoleucine amide MOD:00099 , L-leucine amide MOD:00100 , L-lysine amide MOD:00101 , L-methionine amide MOD:00102 , L-proline amide MOD:00104 , L-serine amide MOD:00105 , L-threonine amide MOD:00106 , L-tryptophan amide MOD:00107 , L-tyrosine amide MOD:00108 , L-valine amide MOD:00109 | :