5D68 | pdb_00005d68

Crystal structure of KRIT1 ARD-FERM

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)
C		e5d68C1	A: a/b three-layered sandwiches	X: C-terminal additional helical subdomain in reovirus polymerase lambda3	H: C-terminal additional helical subdomain in reovirus polymerase lambda3	T: C-terminal additional helical subdomain in reovirus polymerase lambda3	F:	ECOD (v294.1)
B		e5d68B1	A: a/b three-layered sandwiches	X: C-terminal additional helical subdomain in reovirus polymerase lambda3	H: C-terminal additional helical subdomain in reovirus polymerase lambda3	T: C-terminal additional helical subdomain in reovirus polymerase lambda3	F:	ECOD (v294.1)
A	KRIT1_FRMD8_FERM_C	e5d68A1	A: a/b three-layered sandwiches	X: C-terminal additional helical subdomain in reovirus polymerase lambda3	H: C-terminal additional helical subdomain in reovirus polymerase lambda3	T: C-terminal additional helical subdomain in reovirus polymerase lambda3	F: KRIT1_FRMD8_FERM_C	ECOD (v294.1)
A		e5d68A4	A: a/b three-layered sandwiches	X: C-terminal additional helical subdomain in reovirus polymerase lambda3	H: C-terminal additional helical subdomain in reovirus polymerase lambda3	T: C-terminal additional helical subdomain in reovirus polymerase lambda3	F:	ECOD (v294.1)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF24522	KRIT1/FRMD8, FERM domain C-lobe (KRIT1_FRMD8_FERM_C)	KRIT1/FRMD8, FERM domain C-lobe	KRIT1, also known as CCM1, a Rap1-binding protein, is expressed in endothelial cells where it is present in cell-cell junctions and associated with junctional proteins [1]. Together with CCM2/MGC4607 and CCM3/PDCD10, KRIT1 constitutes a set of protei ...	KRIT1, also known as CCM1, a Rap1-binding protein, is expressed in endothelial cells where it is present in cell-cell junctions and associated with junctional proteins [1]. Together with CCM2/MGC4607 and CCM3/PDCD10, KRIT1 constitutes a set of proteins whose mutations are found in cerebral cavernous malformations, characterised by cerebral hemorrhages and vascular malformations in the central nervous system. KRIT1 localization is mediated by its FERM domain [2]. This entry represents the FERM domain C-lobe. This entry also includes the paralogue of KRIT1, FRMD8, a protein that promotes the cell surface stability of iRhom1/RHBDF1 and iRhom2/RHBDF2 and prevents their degradation via the endolysosomal pathway. By acting on iRhoms, FRMD8 is involved in ADAM17-mediated shedding of TNF, amphiregulin/AREG, HBEGF and TGFA from the cell surface [3,4].	Domain
A, B, C	PF00373	FERM central domain (FERM_M)	FERM central domain	This domain is the central structural domain of the FERM domain.	Domain
A, B, C	PF00023	Ankyrin repeat (Ank)	Ankyrin repeat	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	Krev interaction trapped protein 1	ion binding binding phosphatidylinositol-4,5-bisphosphate binding anion binding phosphatidylinositol bisphosphate binding phospholipid binding lipid binding phosphatidylinositol phosphate binding phosphatidylinositol binding small molecule binding cytoskeletal protein binding microtubule binding protein binding tubulin binding ion binding binding phosphatidylinositol-4,5-bisphosphate binding anion binding phosphatidylinositol bisphosphate binding phospholipid binding lipid binding phosphatidylinositol phosphate binding phosphatidylinositol binding small molecule binding cytoskeletal protein binding microtubule binding protein binding tubulin binding GTPase regulator activity enzyme regulator activity nucleoside-triphosphatase regulator activity molecular function regulator activity	developmental process multicellular organismal process regulation of multicellular organismal development regulation of biological process regulation of developmental process blood vessel morphogenesis tube development biological regulation angiogenesis vasculature development regulation of vasculature development circulatory system development anatomical structure morphogenesis multicellular organism development tube morphogenesis developmental process multicellular organismal process regulation of multicellular organismal development regulation of biological process regulation of developmental process blood vessel morphogenesis tube development biological regulation angiogenesis vasculature development regulation of vasculature development circulatory system development anatomical structure morphogenesis multicellular organism development tube morphogenesis regulation of angiogenesis anatomical structure formation involved in morphogenesis anatomical structure development regulation of multicellular organismal process regulation of anatomical structure morphogenesis blood vessel development system development cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly cellular process integrin activation cellular component organization or biogenesis cell redox homeostasis cellular homeostasis homeostatic process epithelium development endothelium development tissue development negative regulation of locomotion regulation of cell motility regulation of cellular process endothelial cell migration negative regulation of biological process negative regulation of endothelial cell migration regulation of locomotion regulation of cell migration negative regulation of cellular process regulation of endothelial cell migration negative regulation of cell motility cell migration cell motility locomotion negative regulation of cell migration negative regulation of blood vessel morphogenesis negative regulation of developmental process negative regulation of angiogenesis negative regulation of vasculature development negative regulation of multicellular organismal process negative regulation of endothelial cell apoptotic process negative regulation of programmed cell death regulation of apoptotic process regulation of programmed cell death cell death negative regulation of apoptotic process endothelial cell apoptotic process apoptotic process programmed cell death regulation of endothelial cell apoptotic process negative regulation of cell population proliferation cell population proliferation endothelial cell proliferation negative regulation of endothelial cell proliferation regulation of endothelial cell proliferation regulation of cell population proliferation regulation of epithelial cell proliferation epithelial cell proliferation negative regulation of epithelial cell proliferation regulation of establishment of cell polarity regulation of establishment or maintenance of cell polarity establishment of cell polarity establishment or maintenance of cell polarity cellular response to stimulus small GTPase-mediated signal transduction response to stimulus signaling intracellular signal transduction cell communication intracellular signaling cassette signal transduction	cell-cell junction cellular anatomical structure anchoring junction cell junction cell periphery plasma membrane membrane intracellular anatomical structure cytoplasm protein-containing complex intracellular organelle cytoskeleton organelle membraneless organelle cell-cell junction cellular anatomical structure anchoring junction cell junction cell periphery plasma membrane membrane intracellular anatomical structure cytoplasm protein-containing complex intracellular organelle cytoskeleton organelle membraneless organelle intracellular membraneless organelle extracellular region extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR041791	Krev interaction trapped protein 1, FERM domain C-lobe	Domain
A, B, C	IPR000299	FERM domain	Domain
A, B, C	IPR014352	FERM/acyl-CoA-binding protein superfamily	Homologous Superfamily
A, B, C	IPR043058	KRIT, N-terminal NPxY motif-rich domain superfamily	Homologous Superfamily
A, B, C	IPR036770	Ankyrin repeat-containing domain superfamily	Homologous Superfamily
A, B, C	IPR019748	FERM central domain	Domain
A, B, C	IPR056485	KRIT1, ARM-repeats domain	Domain
A, B, C	IPR011993	PH-like domain superfamily	Homologous Superfamily
A, B, C	IPR002110	Ankyrin repeat	Repeat
A, B, C	IPR019749	Band 4.1 domain	Domain
A, B, C	IPR035963	FERM superfamily, second domain	Homologous Superfamily
A, B, C	IPR032022	KRIT, N-terminal NPxY motif-rich region	Domain
A, B, C	IPR057096	KRIT1/FRMD8, FERM domain C-lobe	Domain
A, B, C	IPR051594	KRIT1/FRMD8	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C	Pharos: O00522	Hemangioma, Cavernous, Central Nervous System cerebral cavernous malformation 1 cerebrovascular disorder famililal cerebral cavernous malformations cavernous hemangioma cerebral cavernous malformation cerebrocostomandibular syndrome intellectual disability hereditary hemorrhagic telangiectasia

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.