6RBF

Mucin 2 D3 domain

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)
A	PF00094	e6rbfA1	A: beta barrels	X: Repulsive guidance molecule (RGM) family (From Topology)	H: Repulsive guidance molecule (RGM) family (From Topology)	T: Repulsive guidance molecule (RGM) family	F: PF00094	ECOD (1.6)
A	F_UNCLASSIFIED	e6rbfA3	A: few secondary structure elements	X: EGF-like	H: Serine protease inhibitors (From Topology)	T: Serine protease inhibitors	F: F_UNCLASSIFIED	ECOD (1.6)
A	F_UNCLASSIFIED	e6rbfA4	A: few secondary structure elements	X: Fibronectin type I module-like (From Homology)	H: Fibronectin type I module-like	T: Fibronectin type I module	F: F_UNCLASSIFIED	ECOD (1.6)
A	PF08742	e6rbfA2	A: few secondary structure elements	X: VWF C8-3 module (From Topology)	H: VWF C8-3 module (From Topology)	T: VWF C8-3 module	F: PF08742	ECOD (1.6)
B	PF00094	e6rbfB1	A: beta barrels	X: Repulsive guidance molecule (RGM) family (From Topology)	H: Repulsive guidance molecule (RGM) family (From Topology)	T: Repulsive guidance molecule (RGM) family	F: PF00094	ECOD (1.6)
B	F_UNCLASSIFIED	e6rbfB3	A: few secondary structure elements	X: EGF-like	H: Serine protease inhibitors (From Topology)	T: Serine protease inhibitors	F: F_UNCLASSIFIED	ECOD (1.6)
B	PF08742	e6rbfB2	A: few secondary structure elements	X: VWF C8-3 module (From Topology)	H: VWF C8-3 module (From Topology)	T: VWF C8-3 module	F: PF08742	ECOD (1.6)
C	PF00094	e6rbfC1	A: beta barrels	X: Repulsive guidance molecule (RGM) family (From Topology)	H: Repulsive guidance molecule (RGM) family (From Topology)	T: Repulsive guidance molecule (RGM) family	F: PF00094	ECOD (1.6)
C	F_UNCLASSIFIED	e6rbfC3	A: few secondary structure elements	X: EGF-like	H: Serine protease inhibitors (From Topology)	T: Serine protease inhibitors	F: F_UNCLASSIFIED	ECOD (1.6)
C	PF08742	e6rbfC2	A: few secondary structure elements	X: VWF C8-3 module (From Topology)	H: VWF C8-3 module (From Topology)	T: VWF C8-3 module	F: PF08742	ECOD (1.6)
D	PF00094	e6rbfD1	A: beta barrels	X: Repulsive guidance molecule (RGM) family (From Topology)	H: Repulsive guidance molecule (RGM) family (From Topology)	T: Repulsive guidance molecule (RGM) family	F: PF00094	ECOD (1.6)
D	F_UNCLASSIFIED	e6rbfD3	A: few secondary structure elements	X: EGF-like	H: Serine protease inhibitors (From Topology)	T: Serine protease inhibitors	F: F_UNCLASSIFIED	ECOD (1.6)
D	PF08742	e6rbfD2	A: few secondary structure elements	X: VWF C8-3 module (From Topology)	H: VWF C8-3 module (From Topology)	T: VWF C8-3 module	F: PF08742	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF08742	C8 domain (C8)	C8 domain	This domain contains 8 conserved cysteine residues, but this family only contains 7 of them to overlaps with other domains. It is found in disease-related proteins including von Willebrand factor, Alpha tectorin, Zonadhesin and Mucin. It is often fo ...	This domain contains 8 conserved cysteine residues, but this family only contains 7 of them to overlaps with other domains. It is found in disease-related proteins including von Willebrand factor, Alpha tectorin, Zonadhesin and Mucin. It is often found on proteins containing Pfam:PF00094 and Pfam:PF01826.	Domain
A, B, C, D	PF00094	von Willebrand factor type D domain (VWD)	von Willebrand factor type D domain	Swiss:P17554 contains a vwd domain. Its function is unrelated but the similarity is very strong by several methods. This domain is structurally homologous to the C-terminal domain of repulsive guidance molecules (RGM) despite low sequence identity [2 ...	Swiss:P17554 contains a vwd domain. Its function is unrelated but the similarity is very strong by several methods. This domain is structurally homologous to the C-terminal domain of repulsive guidance molecules (RGM) despite low sequence identity [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Mucin-2	cation binding cuprous ion binding transition metal ion binding copper ion binding ion binding binding metal ion binding small molecule binding cupric ion binding	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 detoxification of inorganic compound response to copper ion detoxification of copper ion response to stimulus 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 detoxification of inorganic compound response to copper ion detoxification of copper ion response to stimulus detoxification stress response to copper ion response to inorganic substance response to toxic substance response to metal ion response to chemical response to stress stress response to metal ion biological process involved in interspecies interaction between organisms modulation by host of symbiont process homeostasis of number of cells host-mediated regulation of intestinal microbiota composition biological process involved in interaction with symbiont biological process involved in symbiotic interaction regulation of body fluid levels secretion by tissue secretion transport biological regulation mucus secretion establishment of localization localization body fluid secretion regulation of biological quality	membrane-bounded organelle intracellular anatomical structure Golgi apparatus membrane-enclosed lumen cellular anatomical entity intracellular membrane-bounded organelle endomembrane system intracellular organelle lumen Golgi lumen intracellular organelle organelle lumen organelle cytoplasm extracellular region membrane-bounded organelle intracellular anatomical structure Golgi apparatus membrane-enclosed lumen cellular anatomical entity intracellular membrane-bounded organelle endomembrane system intracellular organelle lumen Golgi lumen intracellular organelle organelle lumen organelle cytoplasm extracellular region outer mucus layer mucus layer cell periphery extracellular matrix external encapsulating structure collagen-containing extracellular matrix plasma membrane membrane inner mucus layer extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR002919	Trypsin Inhibitor-like, cysteine rich domain	Domain
A, B, C, D	IPR001007	VWFC domain	Domain
A, B, C, D	IPR001846	von Willebrand factor, type D domain	Domain
A, B, C, D	IPR014853	VWF/SSPO/Zonadhesin-like, cysteine-rich domain	Domain
A, B, C, D	IPR036084	Serine protease inhibitor-like superfamily	Homologous Superfamily
A, B, C, D	IPR025155	WxxW domain	Domain
A, B, C, D	IPR006207	Cystine knot, C-terminal	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C, D	Pharos: Q02817	adenocarcinoma adenoma intestinal cancer papillary adenoma rectal neoplasm follicular thyroid adenoma microcystic adenoma tubular adenocarcinoma granular cell carcinoma rectal carcinoma ulcerative colitis Adenoma, Trabecular Crohn disease malignant colon neoplasm cribriform carcinoma adenocarcinoma adenoma intestinal cancer papillary adenoma rectal neoplasm follicular thyroid adenoma microcystic adenoma tubular adenocarcinoma granular cell carcinoma rectal carcinoma ulcerative colitis Adenoma, Trabecular Crohn disease malignant colon neoplasm cribriform carcinoma intestinal neoplasm rectal cancer cribriform carcinoma of breast pancreatic intraductal papillary-mucinous carcinoma

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 R01GM133198.