Annotations: 8ZCR

Structure of PI9

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Chloroa_b-bind	e8zcrB01	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Chloroa_b-bind	ECOD (v295)
A	Chloroa_b-bind	e8zcrA01	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Chloroa_b-bind	ECOD (v295)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00079	Serpin (serine protease inhibitor) (Serpin)	Serpin (serine protease inhibitor)	Structure is a multi-domain fold containing a bundle of helices and a beta sandwich.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	Serpin B9	enzyme regulator activity cysteine-type endopeptidase inhibitor activity involved in apoptotic process molecular function regulator activity cysteine-type endopeptidase regulator activity involved in apoptotic process molecular function inhibitor activity peptidase regulator activity serine-type endopeptidase inhibitor activity enzyme inhibitor activity peptidase inhibitor activity endopeptidase regulator activity endopeptidase inhibitor activity protein binding binding enzyme binding enzyme regulator activity cysteine-type endopeptidase inhibitor activity involved in apoptotic process molecular function regulator activity cysteine-type endopeptidase regulator activity involved in apoptotic process molecular function inhibitor activity peptidase regulator activity serine-type endopeptidase inhibitor activity enzyme inhibitor activity peptidase inhibitor activity endopeptidase regulator activity endopeptidase inhibitor activity protein binding binding enzyme binding protease binding	mast cell mediated immunity immune system process leukocyte mediated immunity myeloid leukocyte mediated immunity immune effector process response to stimulus immune response regulation of biological process regulation of cellular process negative regulation of programmed cell death regulation of apoptotic process biological regulation negative regulation of biological process regulation of programmed cell death mast cell mediated immunity immune system process leukocyte mediated immunity myeloid leukocyte mediated immunity immune effector process response to stimulus immune response regulation of biological process regulation of cellular process negative regulation of programmed cell death regulation of apoptotic process biological regulation negative regulation of biological process regulation of programmed cell death cell death negative regulation of apoptotic process negative regulation of cellular process cellular process apoptotic process programmed cell death cellular response to stimulus response to endogenous stimulus response to estrogen cellular response to estrogen stimulus cellular response to endogenous stimulus cellular response to chemical stimulus response to hormone response to chemical cellular response to hormone stimulus regulation of immune effector process lymphocyte mediated immunity negative regulation of lymphocyte mediated immunity response to biotic stimulus negative regulation of natural killer cell mediated immunity regulation of immune system process natural killer cell mediated immunity regulation of natural killer cell mediated immunity response to other organism regulation of innate immune response negative regulation of immune response negative regulation of immune effector process response to external stimulus leukocyte mediated cytotoxicity regulation of leukocyte mediated immunity regulation of response to stimulus defense response to other organism negative regulation of response to external stimulus negative regulation of defense response natural killer cell mediated cytotoxicity regulation of immune response regulation of cell killing negative regulation of natural killer cell mediated cytotoxicity regulation of defense response regulation of response to biotic stimulus regulation of natural killer cell mediated cytotoxicity biological process involved in interspecies interaction between organisms regulation of response to external stimulus negative regulation of response to biotic stimulus protection from natural killer cell mediated cytotoxicity response to stress regulation of response to stress negative regulation of leukocyte mediated cytotoxicity innate immune response response to external biotic stimulus negative regulation of cell killing defense response negative regulation of response to stimulus regulation of leukocyte mediated cytotoxicity defense response to symbiont regulation of lymphocyte mediated immunity negative regulation of immune system process negative regulation of leukocyte mediated immunity cell killing negative regulation of innate immune response	cellular anatomical structure membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol extracellular matrix cellular anatomical structure membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol extracellular matrix external encapsulating structure intracellular organelle nucleus intracellular membrane-bounded organelle
A	Serpin B9	enzyme regulator activity cysteine-type endopeptidase inhibitor activity involved in apoptotic process molecular function regulator activity cysteine-type endopeptidase regulator activity involved in apoptotic process molecular function inhibitor activity peptidase regulator activity serine-type endopeptidase inhibitor activity enzyme inhibitor activity peptidase inhibitor activity endopeptidase regulator activity endopeptidase inhibitor activity protein binding binding enzyme binding enzyme regulator activity cysteine-type endopeptidase inhibitor activity involved in apoptotic process molecular function regulator activity cysteine-type endopeptidase regulator activity involved in apoptotic process molecular function inhibitor activity peptidase regulator activity serine-type endopeptidase inhibitor activity enzyme inhibitor activity peptidase inhibitor activity endopeptidase regulator activity endopeptidase inhibitor activity protein binding binding enzyme binding protease binding	mast cell mediated immunity immune system process leukocyte mediated immunity myeloid leukocyte mediated immunity immune effector process response to stimulus immune response regulation of biological process regulation of cellular process negative regulation of programmed cell death regulation of apoptotic process biological regulation negative regulation of biological process regulation of programmed cell death mast cell mediated immunity immune system process leukocyte mediated immunity myeloid leukocyte mediated immunity immune effector process response to stimulus immune response regulation of biological process regulation of cellular process negative regulation of programmed cell death regulation of apoptotic process biological regulation negative regulation of biological process regulation of programmed cell death cell death negative regulation of apoptotic process negative regulation of cellular process cellular process apoptotic process programmed cell death cellular response to stimulus response to endogenous stimulus response to estrogen cellular response to estrogen stimulus cellular response to endogenous stimulus cellular response to chemical stimulus response to hormone response to chemical cellular response to hormone stimulus regulation of immune effector process lymphocyte mediated immunity negative regulation of lymphocyte mediated immunity response to biotic stimulus negative regulation of natural killer cell mediated immunity regulation of immune system process natural killer cell mediated immunity regulation of natural killer cell mediated immunity response to other organism regulation of innate immune response negative regulation of immune response negative regulation of immune effector process response to external stimulus leukocyte mediated cytotoxicity regulation of leukocyte mediated immunity regulation of response to stimulus defense response to other organism negative regulation of response to external stimulus negative regulation of defense response natural killer cell mediated cytotoxicity regulation of immune response regulation of cell killing negative regulation of natural killer cell mediated cytotoxicity regulation of defense response regulation of response to biotic stimulus regulation of natural killer cell mediated cytotoxicity biological process involved in interspecies interaction between organisms regulation of response to external stimulus negative regulation of response to biotic stimulus protection from natural killer cell mediated cytotoxicity response to stress regulation of response to stress negative regulation of leukocyte mediated cytotoxicity innate immune response response to external biotic stimulus negative regulation of cell killing defense response negative regulation of response to stimulus regulation of leukocyte mediated cytotoxicity defense response to symbiont regulation of lymphocyte mediated immunity negative regulation of immune system process negative regulation of leukocyte mediated immunity cell killing negative regulation of innate immune response	cellular anatomical structure membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol extracellular matrix cellular anatomical structure membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol extracellular matrix external encapsulating structure intracellular organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR023795	Serpin, conserved site	Conserved Site
B	IPR000215	Serpin family	Family
B	IPR023796	Serpin domain	Domain
B	IPR042178	Serpin superfamily, domain 1	Homologous Superfamily
B	IPR042185	Serpin superfamily, domain 2	Homologous Superfamily
B	IPR036186	Serpin superfamily	Homologous Superfamily
B	IPR000240	Serpin B9/maspin	Family
A	IPR023795	Serpin, conserved site	Conserved Site
A	IPR000215	Serpin family	Family
A	IPR023796	Serpin domain	Domain
A	IPR042178	Serpin superfamily, domain 1	Homologous Superfamily
A	IPR042185	Serpin superfamily, domain 2	Homologous Superfamily
A	IPR036186	Serpin superfamily	Homologous Superfamily
A	IPR000240	Serpin B9/maspin	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B	: P50453	Chloracne pancreatic ductal adenocarcinoma psoriasis ulcerative colitis adrenal cortex carcinoma gastric carcinoma juvenile dermatomyositis lung adenocarcinoma malignant mesothelioma oligodendroglioma pancreatic intraductal papillary-mucinous carcinoma Sjogren syndrome vitiligo atopic eczema chronic obstructive pulmonary disease Chloracne pancreatic ductal adenocarcinoma psoriasis ulcerative colitis adrenal cortex carcinoma gastric carcinoma juvenile dermatomyositis lung adenocarcinoma malignant mesothelioma oligodendroglioma pancreatic intraductal papillary-mucinous carcinoma Sjogren syndrome vitiligo atopic eczema chronic obstructive pulmonary disease head and neck cancer large cell medulloblastoma lung cancer medulloblastoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia tuberculosis B-cell chronic lymphocytic leukemia cutaneous lupus erythematosus interstitial cystitis lung carcinoma non-small cell lung carcinoma
A	: P50453	Chloracne pancreatic ductal adenocarcinoma psoriasis ulcerative colitis adrenal cortex carcinoma gastric carcinoma juvenile dermatomyositis lung adenocarcinoma malignant mesothelioma oligodendroglioma pancreatic intraductal papillary-mucinous carcinoma Sjogren syndrome vitiligo atopic eczema chronic obstructive pulmonary disease Chloracne pancreatic ductal adenocarcinoma psoriasis ulcerative colitis adrenal cortex carcinoma gastric carcinoma juvenile dermatomyositis lung adenocarcinoma malignant mesothelioma oligodendroglioma pancreatic intraductal papillary-mucinous carcinoma Sjogren syndrome vitiligo atopic eczema chronic obstructive pulmonary disease head and neck cancer large cell medulloblastoma lung cancer medulloblastoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia tuberculosis B-cell chronic lymphocytic leukemia cutaneous lupus erythematosus interstitial cystitis lung carcinoma non-small cell lung carcinoma

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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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.