Annotations: 1QNK

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1qnka_	Alpha and beta proteins (a+b)	IL8-like	Interleukin 8-like chemokines	Interleukin 8-like chemokines	Gro beta	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1qnkb_	Alpha and beta proteins (a+b)	IL8-like	Interleukin 8-like chemokines	Interleukin 8-like chemokines	Gro beta	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Interleukin 8-like chemokines	8021955	4000912	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Interleukin 8-like chemokines	8034335	3001955	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Interleukin 8-like chemokines	8034335	3001955	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	IL8_1	e1qnkA1	A: beta barrels	X: IL8-related (From Homology)	H: IL8-related	T: IL8	F: IL8_1	ECOD (1.6)
B	IL8_1	e1qnkB1	A: beta barrels	X: IL8-related (From Homology)	H: IL8-related	T: IL8	F: IL8_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.50.40	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)		CATH (4.3.0)
B	2.40.50.40	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00048	Small cytokines (intecrine/chemokine), interleukin-8 like (IL8)	Small cytokines (intecrine/chemokine), interleukin-8 like	Includes a number of secreted growth factors and interferons involved in mitogenic, chemotactic, and inflammatory activity. Structure contains two highly conserved disulfide bonds.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	C-X-C motif chemokine 2	binding molecular function activator activity signaling receptor binding G protein-coupled receptor binding signaling receptor activator activity protein binding cytokine receptor binding chemokine activity molecular function regulator activity cytokine activity signaling receptor regulator activity chemokine receptor binding receptor ligand activity CXCR chemokine receptor binding	chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion humoral immune response biological process involved in interspecies interaction between organisms response to other organism defense response immune response defense response to symbiont antimicrobial humoral response response to biotic stimulus chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion humoral immune response biological process involved in interspecies interaction between organisms response to other organism defense response immune response defense response to symbiont antimicrobial humoral response response to biotic stimulus antimicrobial humoral immune response mediated by antimicrobial peptide defense response to other organism response to stress immune system process response to external biotic stimulus cell chemotaxis cellular response to stimulus neutrophil chemotaxis neutrophil migration granulocyte migration leukocyte migration cellular response to chemical stimulus granulocyte chemotaxis myeloid leukocyte migration cell migration cellular process cell motility leukocyte chemotaxis inflammatory response regulation of biological process regulation of cellular process cell surface receptor signaling pathway signaling biological regulation response to cytokine response to chemokine cytokine-mediated signaling pathway cellular response to chemokine chemokine-mediated signaling pathway cell communication response to peptide G protein-coupled receptor signaling pathway cellular response to cytokine stimulus signal transduction response to lipid cellular response to lipopolysaccharide response to oxygen-containing compound cellular response to molecule of bacterial origin response to lipopolysaccharide cellular response to oxygen-containing compound cellular response to biotic stimulus response to bacterium cellular response to lipid response to molecule of bacterial origin	cellular anatomical structure extracellular region extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR001811	Chemokine interleukin-8-like domain	Domain
A, B	IPR036048	Chemokine interleukin-8-like superfamily	Homologous Superfamily
A, B	IPR001089	CXC chemokine	Family
A, B	IPR039809	Chemokine beta/gamma/delta	Family
A, B	IPR033899	CXC Chemokine domain	Domain
A, B	IPR018048	CXC chemokine, conserved site	Conserved Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: P19875	rheumatoid arthritis breast carcinoma esophageal cancer acute lung injury allergic contact dermatitis Arsenic Poisoning pulmonary fibrosis breast cancer congestive heart failure middle cerebral artery infarction hypertensive disorder cholestasis Crohn disease myocardial ischemia head and neck cancer rheumatoid arthritis breast carcinoma esophageal cancer acute lung injury allergic contact dermatitis Arsenic Poisoning pulmonary fibrosis breast cancer congestive heart failure middle cerebral artery infarction hypertensive disorder cholestasis Crohn disease myocardial ischemia head and neck cancer osteoarthritis susceptibility 1 idiopathic interstitial pneumonia pancreatic ductal adenocarcinoma bipolar disorder large cell medulloblastoma lung adenocarcinoma malignant colon neoplasm malignant mesothelioma spina bifida tuberculosis cutaneous lupus erythematosus gastric carcinoma neoplasm of esophagus non-small cell lung carcinoma acute myeloid leukemia hepatocellular carcinoma Pick disease interstitial cystitis lung cancer malignant ependymoma sinusitis coronary artery disease medulloblastoma ulcerative colitis cystic fibrosis esophageal adenocarcinoma nephrosclerosis heart failure osteoarthritis adrenal cortex carcinoma ovarian cancer injury psoriasis Barrett esophagus ischemia reperfusion injury bone resorption disease schizophrenia lung carcinoma malignant glioma skin disease chronic obstructive pulmonary disease

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.