7SG6: PfCSP peptide 21 with antibody CIS43_Var10

Structure of PfCSP peptide 21 with antibody CIS43_Var10. Determined by X-ray diffraction at 1.55 Å resolution. Released 22 Jun 2022.

Method: X-ray diffraction
Resolution: 1.55 Å
Organisms: Homo sapiens, synthetic construct
Chains: 3
Atoms: 3,765
Mol. weight: 50.1 kDa
Released: 22 Jun 2022

Explore 7SG6 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

7SG6 contains 20 α-helices and 47 β-strands across 3 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: 0 helices, 1 β-strand

Element	Residues	Length	Sheet
β-strand	10	1	2

Chain H: 11 helices, 23 β-strands

Element	Residues	Length	Sheet
β-strand	3-6	4	1
α-helix	7-9	3
β-strand	10-12	3	2
β-strand	18-25	8	1
α-helix	29-31	3
β-strand	33-39	7	2
β-strand	46-52	7	2
β-strand	57-59	3	2
β-strand	67-72	6	1
α-helix	73-75	3
β-strand	77-82	6	1
α-helix	84-86	3
β-strand	88-98	11	2
β-strand	100C-103	5	2
β-strand	107-111	5	2
α-helix	115-116	2
β-strand	117	1	3
α-helix	118-119	2
β-strand	120-124	5	4
α-helix	128-130	3
β-strand	131-132	2	4
β-strand	135-145	11	4
β-strand	146	1	3
β-strand	151-154	4	5
α-helix	155-157	3
β-strand	159	1	5
β-strand	163-165	3	4
α-helix	166-168	3
β-strand	169-170	2	4
β-strand	176-185	10	4
α-helix	186-188	3
β-strand	195-200	6	5
α-helix	201-203	3
β-strand	205-210	6	5

Chain L: 9 helices, 23 β-strands

Element	Residues	Length	Sheet
β-strand	4-7	4	6
β-strand	10-14	5	2
β-strand	19-25	7	6
β-strand	27C-27D	2	7
β-strand	30-31	2	7
β-strand	33-38	6	2
β-strand	45-49	5	2
β-strand	53-54	2	2
α-helix	55	1
β-strand	62-67	6	6
β-strand	70-75	6	6
α-helix	80-82	3
β-strand	84-90	7	2
α-helix	96	1
β-strand	97-98	2	2
β-strand	102-107	6	2
β-strand	111	1	8
α-helix	112-113	2
β-strand	114-118	5	9
α-helix	119-121	3
α-helix	122-125	4
β-strand	129-139	11	9
β-strand	140	1	8
β-strand	145-150	6	10
β-strand	153-154	2	10
α-helix	155	1
β-strand	159-163	5	9
α-helix	164-167	4
β-strand	173-182	10	9
α-helix	183-186	4
β-strand	191-197	7	10
β-strand	205-210	6	10

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
CIS43_Var10 Fab Heavy chain	H	protein	226	Homo sapiens
CIS43_Var10 Fab Light chain	L	protein	220	Homo sapiens
PfCSP peptide 21	A	protein	15	synthetic construct	Q7K740 (AlphaFold model)

Sequence of entity 1 (H), FASTA

>7SG6_1 CIS43_Var10 Fab Heavy chain (chains H)
QRQLVQSGAEVKKPGASVKVSCKASGYTFTSYAIHWVRQAPGQRLEWMGWIKAGNGNTRY
SQKFQDRVTITRDTSTTTAYMELSSLRSEDTAVYYCALLTVLTPDDAFDIWGQGTMVTVS
SASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQS
SGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCDK

Sequence of entity 2 (L), FASTA

>7SG6_2 CIS43_Var10 Fab Light chain (chains L)
DIVMTQSPDSLAVSLGERATINCKSSQSVFYSSNNKNYLAWYQQKPGQPPNLLIYWASTR
QSGVPDRFSGSGSGTDFTLTISSLQAEDVASYYCHQYYSSPLTFGGGTKVEIKRTVAAPS
VFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYS
LSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC

Sequence of entity 3 (A), FASTA

>7SG6_3 PfCSP peptide 21 (chains A)
NPDPNANPNVDPNAN

Primary citation

Highly protective antimalarial antibodies via precision library generation and yeast display screening. Banach, B.B., Tripathi, P., Da Silva Pereira, L. et al. J Exp Med (2022) 219. DOI 10.1084/jem.20220323 · PubMed

Other PDB entries of the same protein (UniProt Q7K740 (AlphaFold model), which also has an AlphaFold model), best resolution first:

7SG5 1.4 Å, Structure of PfCSP peptide 21 with antibody CIS43_Var2
9C79 1.46 Å, Human monoclonal antibody MAD21-101 bound to the N-terminus of cleaved circumsporozoite…
9NKZ 1.48 Å, Crystal structure of Fab MAM01 in complex with NANP6 peptide from circumsporozoite protein
9NL0 1.54 Å, Crystal structure of Fab MAM01 in complex with NPNA3 peptide from circumsporozoite protein
6PBV 1.57 Å, Crystal structure of Fab668 complex
9NCY 1.63 Å, Fab1392 in complex with the C-terminal alpha-TSR domain of the P. falciparum…
3VDJ 1.7 Å, Crystal structure of circumsporozoite protein aTSR domain, R32 native form
9DST 1.74 Å, Crystal structure of Fab MS-1805 in complex with N-terminal junction peptide from…
9NI1 1.75 Å, Fab389 in complex with the C-terminal alpha-TSR domain of the P. falciparum…
7RXP 1.76 Å, Fab1512 in complex with the C-terminal alpha-TSR domain of P. falciparum
6BQB 1.77 Å, MGG4 Fab in complex with peptide
7LKB 1.8 Å, Crystal structure of PfCSP peptide 21 with vaccine-elicited human anti-malaria antibody…

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