STRADB
STE20-related kinase adapter protein beta
Also known as: ALS2CR2, CALS-21, ILPIP, ILPIPA, PAPK, STRAB_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q9C0K7
- Gene
- STRADB
- Ensembl
- ENSG00000082146
- Chromosome
- 2
- Canonical length
- 418 aa
- Protein class
- Enzymes, Predicted intracellular proteins
- Subcellular location
- Aggresome,Cytosol
OverviewNCBI Gene
This gene encodes a protein that belongs to the serine/threonine protein kinase STE20 subfamily. One of the active site residues in the protein kinase domain of this protein is altered, and it is thus a pseudokinase. This protein is a component of a complex involved in the activation of serine/threonine kinase 11, a master kinase that regulates cell polarity and energy-generating metabolism. This complex regulates the relocation of this kinase from the nucleus to the cytoplasm, and it is essential for G1 cell cycle arrest mediated by this kinase. The protein encoded by this gene can also interact with the X chromosome-linked inhibitor of apoptosis protein, and this interaction enhances the anti-apoptotic activity of this protein via the JNK1 signal transduction pathway. Two pseudogenes, located on chromosomes 1 and 7, have been found for this gene. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2011]
Canonical amino-acid sequenceUniProt
418 residues, UniProt reviewed canonical sequence.
>Q9C0K7|STRADB
1 MSLLDCFCTS RTQVESLRPE KQSETSIHQY LVDEPTLSWS RPSTRASEVL CSTNVSHYEL
61 QVEIGRGFDN LTSVHLARHT PTGTLVTIKI TNLENCNEER LKALQKAVIL SHFFRHPNIT
121 TYWTVFTVGS WLWVISPFMA YGSASQLLRT YFPEGMSETL IRNILFGAVR GLNYLHQNGC
181 IHRSIKASHI LISGDGLVTL SGLSHLHSLV KHGQRHRAVY DFPQFSTSVQ PWLSPELLRQ
241 DLHGYNVKSD IYSVGITACE LASGQVPFQD MHRTQMLLQK LKGPPYSPLD ISIFPQSESR
301 MKNSQSGVDS GIGESVLVSS GTHTVNSDRL HTPSSKTFSP AFFSLVQLCL QQDPEKRPSA
361 SSLLSHVFFK QMKEESQDSI LSLLPPAYNK PSISLPPVLP WTEPECDFPD EKDSYWEFLocalizationUniProt · AlphaFold · HPA
Whether an antibody against STRADB can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.37
- Highest tissue expression
- 102 nTPM
Expression across tissuesHPA
Tissue
- skeletal muscle: 102 nTPM
- liver: 98 nTPM
- bone marrow: 76 nTPM
- kidney: 68 nTPM
- tongue: 65 nTPM
- adrenal gland: 51 nTPM
Single-cell type
- cardiomyocytes: 1,663 nCPM
- esophageal apical cells: 199 nCPM
- adipocytes: 163 nCPM
- erythrocytes: 161 nCPM
- cone photoreceptor cells: 159 nCPM
- enterocytes: 145 nCPM
Immune cell
- naive B-cell: 36 nTPM
- NK-cell: 29 nTPM
- memory B-cell: 29 nTPM
- myeloid DC: 17 nTPM
- eosinophil: 16 nTPM
- T-reg: 16 nTPM
Brain region
- white matter: 31 nTPM
- medulla oblongata: 27 nTPM
- spinal cord: 25 nTPM
- hypothalamus: 24 nTPM
- cerebellum: 24 nTPM
- basal ganglia: 23 nTPM
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.69
- gnomAD pLI
- 0
- gnomAD missense Z
- 1.54
- DepMap mean gene effect
- -0.22
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- activation of protein kinase activity
- cell morphogenesis
- JNK cascade
- negative regulation of extrinsic apoptotic signaling pathway in absence of ligand
- protein export from nucleus
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of STRADB in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads STRADB as an antibody target. Whether an autoantibody or antibody against STRADB could matter depends on whether native STRADB is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
STRADB is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label STRADB as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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