1IKF

A CONFORMATION OF CYCLOSPORIN A IN AQUEOUS ENVIRONMENT REVEALED BY THE X-RAY STRUCTURE OF A CYCLOSPORIN-FAB COMPLEX

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Protein Modification Annotation

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth L]	d1ikfl1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	Immunoglobulin light chain kappa variable domain, VL-kappa	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A [auth L]	d1ikfl2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Immunoglobulin light chain kappa constant domain, CL-kappa	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B [auth H]	d1ikfh1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	Immunoglobulin heavy chain variable domain, VH	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B [auth H]	d1ikfh2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Immunoglobulin heavy chain gamma constant domain 1, CH1-gamma	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth L]	C1-set_4	e1ikfL2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_4	ECOD (1.6)
A [auth L]	V-set	e1ikfL1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)
B [auth H]	C1-set_1	e1ikfH2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_1	ECOD (1.6)
B [auth H]	V-set_12	e1ikfH1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_12	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
A [auth L]	R45-45-11 CsA specific Fab	L-KAPPA	Mus musculus (house mouse)	IGKV10-9602, IGKJ102, IGKC01, IGKC02	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202506-0)
B [auth H]	R45-45-11 CsA specific Fab	VH-CH1	Mus musculus (house mouse)	IGHV5-1202, IGHJ301, IGHG1*01	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202506-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
A [auth L]	Light Chain	IGKV10	Kappa	cyclosporin a	SAbDab (2025-02-21)
B [auth H]	Heavy Chain	IGHV5	-	cyclosporin a	SAbDab (2025-02-21)

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
C	ABA	Parent Component: ALA RESID: AA0253 , AA0409 PSI-MOD : S-(2-aminovinyl)-3-methyl-D-cysteine MOD:00258 , L-2-aminobutanoic acid (Glu) MOD:00819
C	BMT	Parent Component: THR RESID: AA0253 , AA0409
C	DAL	RESID: AA0253 , AA0409 , AA0111 , AA0191 PSI-MOD : S-(2-aminovinyl)-3-methyl-D-cysteine MOD:00258 , L-2-aminobutanoic acid (Glu) MOD:00819 , meso-lanthionine MOD:00120 , D-alanine (Ala) MOD:00198 , D-alanine (Ser) MOD:00858 , D-alanine MOD:00862
C	MLE	Parent Component: LEU RESID: AA0253 , AA0409 , AA0111 , AA0191 , AA0337 PSI-MOD : S-(2-aminovinyl)-3-methyl-D-cysteine MOD:00258 , L-2-aminobutanoic acid (Glu) MOD:00819 , meso-lanthionine MOD:00120 , D-alanine (Ala) MOD:00198 , D-alanine (Ser) MOD:00858 , D-alanine MOD:00862 , N-methyl-L-leucine MOD:00342
C	MVA	Parent Component: VAL RESID: AA0253 , AA0409 , AA0111 , AA0191 , AA0337
C	SAR	Parent Component: GLY RESID: AA0253 , AA0409 , AA0111 , AA0191 , AA0337 , AA0063 PSI-MOD : S-(2-aminovinyl)-3-methyl-D-cysteine MOD:00258 , L-2-aminobutanoic acid (Glu) MOD:00819 , meso-lanthionine MOD:00120 , D-alanine (Ala) MOD:00198 , D-alanine (Ser) MOD:00858 , D-alanine MOD:00862 , N-methyl-L-leucine MOD:00342 , N-methylglycine MOD:00072

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.