4TTN | pdb_00004ttn

Quasi-racemic structure of [G6A]kalata B1

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Protein Modification Annotation

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Cyclotides	8043986	3000228	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Cyclotide	e4ttnA1	A: few secondary structure elements	X: omega toxin-like	H: omega toxin-related	T: Cyclotides	F: Cyclotide	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF03784	Cyclotide family (Cyclotide)	Cyclotide family	This family contains a set of cyclic peptides with a variety of activities. The structure consists of a distorted triple-stranded beta-sheet and a cysteine-knot arrangement of the disulfide bonds [2]. Cyclotides can be separated into two subfamilies, ...	This family contains a set of cyclic peptides with a variety of activities. The structure consists of a distorted triple-stranded beta-sheet and a cysteine-knot arrangement of the disulfide bonds [2]. Cyclotides can be separated into two subfamilies, namely bracelet and moebius. The bracelet cyclotide subfamily tends to contain a larger number of positively charged residues and has a bracelet-like circularisation of the backbone [2]. The moebius cyclotide subfamily contains a backbone twist due to a cis-Pro peptide bond and may conceptually be regarded as a molecular Moebius strip [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	D-kalata B1	-	-	-
A	Kalata-B1	-	defense response to bacterium biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response response to bacterium response to stress response to external stimulus response to external biotic stimulus response to biotic stimulus cellular process disruption of cell in another organism disruption of anatomical structure in another organism killing of cells of another organism defense response to bacterium biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response response to bacterium response to stress response to external stimulus response to external biotic stimulus response to biotic stimulus cellular process disruption of cell in another organism disruption of anatomical structure in another organism killing of cells of another organism cell killing	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR005535	Cyclotide	Family
A	IPR012324	Cyclotide, moebius, conserved site	Conserved Site
A	IPR036146	Cyclotide superfamily	Homologous Superfamily

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
B	DAR
B	DCY
B	DGL
B	DLE	RESID: AA0197 PSI-MOD : D-leucine MOD:00204
B	DPR	RESID: AA0197
B	DSG	RESID: AA0197 , AA0196 , AA0622 PSI-MOD : D-leucine MOD:00204 , D-asparagine MOD:00203 , 2-(L-cystein-S-yl)-D-asparagine MOD:01985
B	DSN	RESID: AA0197 , AA0196 , AA0622 , AA0195 , AA0624 PSI-MOD : D-leucine MOD:00204 , D-asparagine MOD:00203 , 2-(L-cystein-S-yl)-D-asparagine MOD:01985 , D-serine (Ser) MOD:00202 , D-serine MOD:00891 , D-serine (Cys) MOD:00892 , 2-(L-cystein-S-yl)-D-serine MOD:01987
B	DTH	RESID: AA0197 , AA0196 , AA0622 , AA0195 , AA0624 , AA0199 PSI-MOD : D-leucine MOD:00204 , D-asparagine MOD:00203 , 2-(L-cystein-S-yl)-D-asparagine MOD:01985 , D-serine (Ser) MOD:00202 , D-serine MOD:00891 , D-serine (Cys) MOD:00892 , 2-(L-cystein-S-yl)-D-serine MOD:01987 , D-allo-threonine MOD:00863
B	DTR	RESID: AA0197 , AA0196 , AA0622 , AA0195 , AA0624 , AA0199 , AA0198 PSI-MOD : D-leucine MOD:00204 , D-asparagine MOD:00203 , 2-(L-cystein-S-yl)-D-asparagine MOD:01985 , D-serine (Ser) MOD:00202 , D-serine MOD:00891 , D-serine (Cys) MOD:00892 , 2-(L-cystein-S-yl)-D-serine MOD:01987 , D-allo-threonine MOD:00863 , D-tryptophan MOD:00205
B	DVA	RESID: AA0197 , AA0196 , AA0622 , AA0195 , AA0624 , AA0199 , AA0198 , AA0200 PSI-MOD : D-leucine MOD:00204 , D-asparagine MOD:00203 , 2-(L-cystein-S-yl)-D-asparagine MOD:01985 , D-serine (Ser) MOD:00202 , D-serine MOD:00891 , D-serine (Cys) MOD:00892 , 2-(L-cystein-S-yl)-D-serine MOD:01987 , D-allo-threonine MOD:00863 , D-tryptophan MOD:00205 , D-valine MOD:00705

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.