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5FOB

Crystal Structure of Human Complement C3b in complex with Smallpox Inhibitor of Complement (SPICE)

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
COMPLEMENT C3 BETA CHAINpolymer64571393.31UniProt (P01024)
Pfam (PF17790)
Pfam (PF01835)
Pfam (PF17791)
Pfam (PF17789)
Pfam (PF07703)
HOMO SAPIENS (HUMAN)C3 AND PZP-LIKE ALPHA-2-MACROGLOBULIN DOMAIN-CONTAINING PROTEIN 1
2B
(B)
COMPLEMENT C3B ALPHA' CHAINpolymer915104074.11UniProt (P01024)
Pfam (PF07677)
Pfam (PF01759)
Pfam (PF00207)
Pfam (PF21406)
Pfam (PF07678)
Pfam (PF21308)
HOMO SAPIENS (HUMAN)
3C
(C)
SMALLPOX INHIBITOR OF COMPLEMENT SPICE, D15Lpolymer24526868.21UniProt (Q76U65)
Pfam (PF00084)
VARIOLA MAJOR VIRUS
4D
(D)
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranosebranched732.71In PDB
GlyTouCan (G32152BH)
5E
(E)
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranosebranched424.41In PDB
GlyTouCan (G42666HT)
6F, GA, MA, PA, QA
(A, B, C)
CHLORIDE IONnon-polymer35.55Chemie (CL)
7AA, BA, CA, DA, EA...
(B, A, C)
GLYCEROLnon-polymer92.124Chemie (GOL)
8HA, Q
(B, A)
SODIUM IONnon-polymer23.02Chemie (NA)
9IA, JA, KA, LA, R...
(B, A)
IODIDE IONnon-polymer126.97Chemie (IOD)
10RA, SA, TA
(A, B, C)
waterwater18.0207Chemie (HOH)
Sequence modifications
B: 749 - 1663 (UniProt: P01024)
PDBExternal DatabaseDetails
Glu 1013Gln 1013SEE REMARK 999
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains3
Total formula weight202335.7
BranchedNumber of molecules2
Total formula weight1157.1
Non-Polymers*Number of molecules38
Total formula weight3321.8
All*Total formula weight206814.6
*Water molecules are not included.

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PDB entries from 2025-07-16

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