Domain Annotation: SCOP Classification SCOP Database (version: 2.0) Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species
A	d2rr8a1	All alpha proteins	CH domain-like	Calponin-homology domain, CH-domain	automated matches	automated matches	human (Homo sapiens ) [TaxId: 9606 ]
A	d2rr8a2	Artifacts	Tags	Tags	Tags	N-terminal Tags	human (Homo sapiens ) [TaxId: 9606 ]

Domain Annotation: CATH CATH Database (version 4.2.0) Homepage

Chain	Domain	Class	Architecture	Topology	Homology
A	1.10.418.10	Mainly Alpha	Orthogonal Bundle	Actin-binding Protein, T-fimbrin	domain 1

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Identifier	Description	Comments	Source
A	PF03836	RasGAP C-terminus (RasGAP_C)	RasGAP C-terminus	-	Family
A	PF00612	IQ calmodulin-binding motif (IQ)	IQ calmodulin-binding motif	-	Motif
A	PF00307	Calponin homology (CH) domain (CH)	Calponin homology (CH) domain	The CH domain is found in both cytoskeletal proteins and signal transduction proteins [1]. The CH domain is involved in actin binding in some members of the family. However in calponins there is evidence that the CH domain is not involved in its ac ...	The CH domain is found in both cytoskeletal proteins and signal transduction proteins [1]. The CH domain is involved in actin binding in some members of the family. However in calponins there is evidence that the CH domain is not involved in its actin binding activity [4]. Most member proteins have from two to four copies of the CH domain, however some proteins such as calponin and Swiss:P15498 have only a single copy.	Domain
A	PF00616	GTPase-activator protein for Ras-like GTPase (RasGAP)	GTPase-activator protein for Ras-like GTPase	-	Family

Gene Product Annotation Gene Product Annotation

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	IQGAP1 protein	actin binding binding protein binding cytoskeletal protein binding protein-containing complex binding actin filament binding cadherin binding cell adhesion molecule binding calcium ion binding ion binding cation binding metal ion binding calmodulin binding GTPase activator activity enzyme activator activity enzyme regulator activity GTPase regulator activity nucleoside-triphosphatase regulator activity molecular function regulator enzyme inhibitor activity GTPase inhibitor activity MAP-kinase scaffold activity protein-macromolecule adaptor activity signaling adaptor activity molecular adaptor activity enzyme binding kinase binding protein kinase binding mitogen-activated protein kinase binding phospholipid binding phosphatidylinositol-3,4,5-trisphosphate binding lipid binding phosphatidylinositol binding anion binding phosphatidylinositol phosphate binding protein domain specific binding phosphatase binding protein phosphatase binding kinase regulator activity kinase activator activity protein kinase regulator activity protein kinase activator activity protein serine/threonine kinase activator activity S100 protein binding small GTPase binding GTPase binding	cellular process response to inorganic substance response to metal ion response to chemical response to stimulus response to calcium ion cellular response to stimulus cellular response to chemical stimulus cellular response to inorganic substance cellular response to metal ion cellular response to calcium ion response to endogenous stimulus response to organic substance response to growth factor response to epidermal growth factor cellular response to organic substance cellular response to growth factor stimulus cellular response to epidermal growth factor stimulus cellular response to endogenous stimulus response to platelet-derived growth factor cellular response to platelet-derived growth factor stimulus response to hormone response to organonitrogen compound response to peptide hormone response to peptide response to nitrogen compound response to oxygen-containing compound response to angiotensin viral process biological process involved in symbiotic interaction biological process involved in interspecies interaction between organisms	intracellular anatomical structure cytoskeleton actin filament actin cytoskeleton organelle non-membrane-bounded organelle intracellular organelle intracellular non-membrane-bounded organelle supramolecular complex supramolecular polymer supramolecular fiber polymeric cytoskeletal fiber cellular anatomical entity axon cell projection neuron projection plasma membrane bounded cell projection cytoplasm cell cortex cortical cytoskeleton cortical actin cytoskeleton cell periphery ribonucleoprotein granule cytoplasmic ribonucleoprotein granule cytosol extracellular region extracellular space vesicle membrane-bounded organelle extracellular organelle extracellular exosome extracellular vesicle plasma membrane cytoplasmic side of plasma membrane membrane extrinsic component of plasma membrane extrinsic component of membrane extrinsic component of cytoplasmic side of plasma membrane side of membrane cytoplasmic side of membrane focal adhesion cell junction cell-substrate junction anchoring junction growth cone site of polarized growth distal axon lateral plasma membrane membrane raft membrane microdomain microtubule microtubule cytoskeleton midbody nucleus intracellular membrane-bounded organelle protein-containing complex ribonucleoprotein complex endomembrane system vesicle membrane secretory granule cytoplasmic vesicle membrane secretory granule membrane organelle membrane cytoplasmic vesicle intracellular vesicle bounding membrane of organelle secretory vesicle cell-cell junction filtration diaphragm slit diaphragm

RCSB PDB is 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.