4CHB | pdb_00004chb

Crystal structure of the human KLHL2 Kelch domain in complex with a WNK4 peptide

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Kelch motif	8084985	3000448	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Kelch motif	8084985	3000448	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	preSET_CXC	e4chbB1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: Nucleotide-binding domain	F: preSET_CXC	ECOD (v294.1)
A	preSET_CXC	e4chbA1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: Nucleotide-binding domain	F: preSET_CXC	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.120.10.80	Mainly Beta	6 Propeller	Neuraminidase	Kelch-type beta propeller	CATH (4.3.0)
A	2.120.10.80	Mainly Beta	6 Propeller	Neuraminidase	Kelch-type beta propeller	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01344	Kelch motif (Kelch_1)	Kelch motif	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, D	SERINE/THREONINE-PROTEIN KINASE WNK4	molecular function inhibitor activity channel regulator activity transporter inhibitor activity ion channel inhibitor activity ion channel regulator activity molecular function regulator activity transporter regulator activity channel inhibitor activity catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity protein serine kinase activity molecular function inhibitor activity channel regulator activity transporter inhibitor activity ion channel inhibitor activity ion channel regulator activity molecular function regulator activity transporter regulator activity channel inhibitor activity catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity protein serine kinase activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups ion binding binding anion binding chloride ion binding small molecule binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding purine nucleotide binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding protein serine/threonine kinase activity	chemical homeostasis homeostatic process monoatomic ion homeostasis multicellular organismal process system process circulatory system process regulation of blood pressure biological regulation regulation of biological quality blood circulation inorganic ion homeostasis intracellular monoatomic anion homeostasis intracellular chloride ion homeostasis monoatomic anion homeostasis chemical homeostasis homeostatic process monoatomic ion homeostasis multicellular organismal process system process circulatory system process regulation of blood pressure biological regulation regulation of biological quality blood circulation inorganic ion homeostasis intracellular monoatomic anion homeostasis intracellular chloride ion homeostasis monoatomic anion homeostasis cellular homeostasis intracellular chemical homeostasis chloride ion homeostasis intracellular monoatomic ion homeostasis transport monoatomic ion transmembrane transport potassium ion transmembrane transport establishment of localization metal ion transport monoatomic cation transmembrane transport transmembrane transport localization monoatomic ion transport potassium ion transport cellular process monoatomic cation transport renal system process renal sodium ion transport sodium ion transport regulation of localization cellular localization regulation of cellular process regulation of protein localization negative regulation of biological process negative regulation of protein localization to plasma membrane negative regulation of cellular process intracellular protein localization regulation of protein localization to membrane negative regulation of protein localization regulation of biological process protein localization to cell periphery protein localization to plasma membrane regulation of protein localization to cell periphery localization within membrane protein localization to membrane negative regulation of protein localization to membrane regulation of cellular localization macromolecule localization negative regulation of protein localization to cell periphery regulation of protein localization to plasma membrane signaling steroid hormone secretion organic hydroxy compound transport hormone secretion cell communication secretion by cell signal release aldosterone secretion mineralocorticoid secretion secretion regulation of hormone levels lipid localization export from cell cell-cell signaling lipid transport endocrine hormone secretion endocrine process lipid export from cell hormone transport corticosteroid hormone secretion cellular response to stimulus response to stimulus intracellular signal transduction intracellular signaling cassette MAPK cascade ERK1 and ERK2 cascade signal transduction kidney epithelium development nephron morphogenesis nephron tubule morphogenesis nephron epithelium morphogenesis nephron tubule development renal system development multicellular organism development tube morphogenesis distal tubule morphogenesis anatomical structure development renal tubule development animal organ morphogenesis epithelial tube morphogenesis nephron development system development nephron epithelium development developmental process epithelium development tube development animal organ development morphogenesis of an epithelium tissue development tissue morphogenesis anatomical structure morphogenesis kidney morphogenesis distal tubule development kidney development renal tubule morphogenesis regulation of transport regulation of monoatomic ion transport negative regulation of monoatomic ion transport negative regulation of transport regulation of sodium ion transport negative regulation of sodium ion transport regulation of metal ion transport sodium ion transmembrane transport monoatomic anion transport chloride transport inorganic anion transport biosynthetic process metabolic process macromolecule metabolic process gene expression macromolecule biosynthetic process calcium ion homeostasis monoatomic cation homeostasis protein phosphorylation phosphorylation primary metabolic process macromolecule modification phosphate-containing compound metabolic process protein metabolic process protein modification process phosphorus metabolic process regulation of body fluid levels digestive system process regulation of system process negative regulation of pancreatic juice secretion negative regulation of secretion regulation of multicellular organismal process negative regulation of digestive system process secretion by tissue pancreatic juice secretion regulation of pancreatic juice secretion regulation of digestive system process regulation of secretion body fluid secretion digestion negative regulation of multicellular organismal process cellular response to chemical stimulus response to chemical cellular response to xenobiotic stimulus response to xenobiotic stimulus regulation of potassium ion transport regulation of monoatomic ion transmembrane transport export across plasma membrane potassium ion export across plasma membrane regulation of potassium ion transmembrane transport regulation of transmembrane transport regulation of potassium ion export across plasma membrane regulation of monoatomic cation transmembrane transport defense response response to stress inflammatory response macrophage activation immune system process cell activation myeloid leukocyte activation leukocyte activation renal absorption renal sodium ion absorption response to nutrient levels multicellular organismal-level homeostasis response to dietary excess energy homeostasis	cellular anatomical structure membrane intracellular anatomical structure cytoplasm cytosol protein-containing complex cell-cell junction apical junction complex bicellular tight junction tight junction anchoring junction cell junction cell body
A, B	KELCH-LIKE PROTEIN 2	cytoskeletal protein binding actin binding protein binding binding ubiquitin-like ligase-substrate adaptor activity enzyme-substrate adaptor activity protein-macromolecule adaptor activity molecular adaptor activity identical protein binding	primary metabolic process protein ubiquitination macromolecule modification metabolic process cellular process protein metabolic process macromolecule metabolic process post-translational protein modification protein modification process protein modification by small protein conjugation protein modification by small protein conjugation or removal catabolic process proteasomal protein catabolic process protein catabolic process primary metabolic process protein ubiquitination macromolecule modification metabolic process cellular process protein metabolic process macromolecule metabolic process post-translational protein modification protein modification process protein modification by small protein conjugation protein modification by small protein conjugation or removal catabolic process proteasomal protein catabolic process protein catabolic process proteasome-mediated ubiquitin-dependent protein catabolic process macromolecule catabolic process modification-dependent macromolecule catabolic process modification-dependent protein catabolic process ubiquitin-dependent protein catabolic process	cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium intracellular organelle intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle actin cytoskeleton ruffle cytoplasm cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium intracellular organelle intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle actin cytoskeleton ruffle cytoplasm cytosol cullin-RING ubiquitin ligase complex protein-containing complex ubiquitin ligase complex catalytic complex transferase complex Cul3-RING ubiquitin ligase complex intracellular protein-containing complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C, D	IPR050588	With No Lysine (K) Ser/Thr Protein Kinase	Family
C, D	IPR000719	Protein kinase domain	Domain
C, D	IPR024678	Serine/threonine-protein kinase OSR1/WNK, CCT domain	Domain
C, D	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
C, D	IPR056865	Serine/threonine-protein kinase WNK, CCTL2 domain	Domain
C, D	IPR008271	Serine/threonine-protein kinase, active site	Active Site
A, B	IPR017096	BTB-kelch protein	Family
A, B	IPR000210	BTB/POZ domain	Domain
A, B	IPR044072	Kelch-like protein 2 , BTB/POZ domain	Domain
A, B	IPR006652	Kelch repeat type 1	Repeat
A, B	IPR011705	BTB/Kelch-associated	Domain
A, B	IPR011333	SKP1/BTB/POZ domain superfamily	Homologous Superfamily
A, B	IPR015915	Kelch-type beta-propeller	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
C, D	Pharos: Q96J92	pseudohypoaldosteronism type 2B pseudohypoaldosteronism hypertensive disorder autosomal dominant pseudohypoaldosteronism type 1 endometriosis metastatic melanoma pancreatic intraductal papillary-mucinous carcinoma pseudohypoaldosteronism type 2 Pseudohypoaldosteronism, Type I, Autosomal Recessive autosomal recessive pseudohypoaldosteronism type 1 ovarian cancer pseudohypoaldosteronism type 2A schizophrenia ovarian mucinous adenocarcinoma pseudohypoaldosteronism type 1
A, B	Pharos: O95198	adenoma breast cancer large cell medulloblastoma malignant glioma ovarian cancer primitive neuroectodermal tumor astrocytic tumor Emery-Dreifuss muscular dystrophy malaria medulloblastoma pilocytic astrocytoma atypical teratoid rhabdoid tumor glioblastoma malignant ependymoma oligodendroglioma adenoma breast cancer large cell medulloblastoma malignant glioma ovarian cancer primitive neuroectodermal tumor astrocytic tumor Emery-Dreifuss muscular dystrophy malaria medulloblastoma pilocytic astrocytoma atypical teratoid rhabdoid tumor glioblastoma malignant ependymoma oligodendroglioma pituitary cancer

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.