5JII: Human IgG1-Fc

Crystal structure of human IgG1-Fc. Determined by X-ray diffraction at 1.79 Å resolution. Released 12 Apr 2017.

Method: X-ray diffraction
Resolution: 1.79 Å
Organism: Homo sapiens
Chains: 2
Atoms: 3,806
Mol. weight: 52.94 kDa
Ligands: PO4
Released: 12 Apr 2017

Explore 5JII in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

5JII contains 19 α-helices and 40 β-strands across 2 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 9 helices, 20 β-strands

Element	Residues	Length	Sheet
β-strand	239-243	5	1
α-helix	244-246	3
α-helix	247-251	5
β-strand	258-266	9	1
β-strand	274-279	6	2
β-strand	282-284	3	2
β-strand	288-289	2	1
β-strand	293-294	2	1
β-strand	300-307	8	1
α-helix	310-314	5
β-strand	319-324	6	2
β-strand	332-336	5	2
α-helix	338-340	3
β-strand	344	1	3
β-strand	347-351	5	4
α-helix	352-354	3
α-helix	355-359	5
β-strand	362-372	11	4
β-strand	373	1	3
β-strand	378-383	6	5
β-strand	386-387	2	5
β-strand	391-393	3	4
α-helix	394-396	3
β-strand	397-398	2	4
β-strand	404-413	10	4
α-helix	414-418	5
β-strand	423-428	6	5
α-helix	433-435	3
β-strand	436-441	6	5

Chain B: 10 helices, 20 β-strands

Element	Residues	Length	Sheet
β-strand	239-243	5	6
α-helix	244-246	3
α-helix	247-251	5
β-strand	258-266	9	6
β-strand	273-279	7	7
β-strand	282-284	3	7
β-strand	288-289	2	6
β-strand	293-294	2	6
β-strand	300-307	8	6
α-helix	310-314	5
β-strand	319-325	7	7
β-strand	332-336	5	7
α-helix	338-340	3
β-strand	344	1	8
α-helix	345-346	2
β-strand	347-351	5	9
α-helix	352-354	3
α-helix	355-359	5
β-strand	362-372	11	9
β-strand	373	1	8
β-strand	378-383	6	10
β-strand	386-387	2	10
β-strand	391-393	3	9
α-helix	394-396	3
β-strand	397-398	2	9
β-strand	404-413	10	9
α-helix	414-418	5
β-strand	423-428	6	10
α-helix	433-435	3
β-strand	436-441	6	10

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
Ig gamma-1 chain C region	A, B	protein	222	Homo sapiens	P01857 (AlphaFold model)

Sequence of entity 1 (A, B), FASTA

>5JII_1 Ig gamma-1 chain C region (chains A, B)
TCPPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEV
HNAKTKPREEQYNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPR
EPQVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSF
FLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPG

Ligands and cofactors

ID	Name	Formula	Copies
PO4	Phosphate ion	O4 P	2

Water and common crystallization additives (GOL) are not listed.

Primary citation

Fcab-HER2 Interaction: a Menage a Trois. Lessons from X-Ray and Solution Studies. Lobner, E., Humm, A.S., Goritzer, K. et al. Structure (2017) 25:878-889.e5. DOI 10.1016/j.str.2017.04.014 · PubMed

Other PDB entries of the same protein (UniProt P01857 (AlphaFold model), which also has an AlphaFold model), best resolution first:

4LLD 1.19 Å, Structure of wild-type IgG1 antibody heavy chain constant domain 1 and light chain…
3TV3 1.29 Å, Crystal structure of broad and potent HIV-1 neutralizing antibody PGT128 in complex with…
4LLQ 1.42 Å, Structure of redesigned IgG1 first constant and lambda domains (CH1:Clambda constant…
5HSF 1.52 Å, 1.52 Angstrom Crystal Structure of Fc fragment of Human IgG1.
6YT7 1.55 Å, Glycosylated knob/dummy-hole fc fragment
4NWU 1.6 Å, Crystal structure of APE1551, an anti-human NGF Fab with a nine amino acid insertion in…
1L6X 1.65 Å, Fc fragment of rituximab bound to a minimized version of the B-domain from protein A…
3TWC 1.65 Å, Crystal structure of broad and potent HIV-1 neutralizing antibody PGT127 in complex with…
5JIH 1.66 Å, Crystal structure of HER2 binding IgG1-Fc (Fcab STAB19)
3MCL 1.7 Å, Anti-beta-amyloid antibody c706 fab in space group P21
5U66 1.7 Å, Modified single helix from the B-domain of protein A bound to IgG1 Fc
6N35 1.75 Å, Anti-HIV-1 Fab 2G12 + Man1-2 re-refinement

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