Annotations: 1PS2

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1ps2a_	Small proteins	Trefoil/Plexin domain-like	Trefoil	Trefoil	PNR-2/PS2, TFF1	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	SCOP2B Superfamily	Trefoil	8038735	3000849	SCOP2B (2022-06-29)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	4.10.110.10	Few Secondary Structures	Irregular	Spasmolytic Protein	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00088	Trefoil (P-type) domain (Trefoil)	Trefoil (P-type) domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PS2	protein binding binding molecular function activator activity signaling receptor binding molecular function regulator activity signaling receptor regulator activity growth factor activity receptor ligand activity signaling receptor activator activity	multicellular organismal process maintenance of gastrointestinal epithelium system process digestion multicellular organismal-level homeostasis epithelial structure maintenance homeostatic process digestive system process anatomical structure homeostasis tissue homeostasis developmental process cellular developmental process cell differentiation cellular process multicellular organismal process maintenance of gastrointestinal epithelium system process digestion multicellular organismal-level homeostasis epithelial structure maintenance homeostatic process digestive system process anatomical structure homeostasis tissue homeostasis developmental process cellular developmental process cell differentiation cellular process response to organic substance response to stimulus response to hormone response to chemical response to endogenous stimulus response to organonitrogen compound response to peptide hormone response to oxygen-containing compound response to nitrogen compound carbohydrate metabolic process organic substance metabolic process primary metabolic process metabolic process negative regulation of cell population proliferation regulation of biological process cell population proliferation regulation of cellular process regulation of cell population proliferation negative regulation of cellular process biological regulation negative regulation of biological process response to immobilization stress response to stress response to metal ion response to iron ion response to inorganic substance	extracellular region cellular anatomical entity extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR044913	P-type trefoil domain superfamily	Homologous Superfamily
A	IPR017994	P-type trefoil, chordata	Family
A	IPR000519	P-type trefoil domain	Domain
A	IPR017957	P-type trefoil, conserved site	Conserved Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P04155	acute lung injury Mammary Neoplasms, Experimental ulcerative colitis breast cancer celiac disease gastric carcinoma malignant colon neoplasm pancreatic intraductal papillary-mucinous carcinoma rheumatoid arthritis vitiligo asthma breast carcinoma esophageal adenocarcinoma interstitial cystitis malignant pancreatic neoplasm acute lung injury Mammary Neoplasms, Experimental ulcerative colitis breast cancer celiac disease gastric carcinoma malignant colon neoplasm pancreatic intraductal papillary-mucinous carcinoma rheumatoid arthritis vitiligo asthma breast carcinoma esophageal adenocarcinoma interstitial cystitis malignant pancreatic neoplasm pancreatic intraductal papillary-mucinous neoplasm sclerosing cholangitis Barrett esophagus breast fibroadenoma exocrine pancreatic carcinoma lung adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.