Chp1
entrez
56398
canonical
uniprot
P61022
canonical
ensembl
ENSMUSG00000014077
resolver
ensp
ENSMUSP00000014221
resolver
ensp
ENSMUSP00000299715
resolver
enst
ENSMUST00000014221
resolver
genesymbol
Chp1
resolver
genesymbol_syn
Chp
resolver
genesymbol_syn
Sid470
resolver
uniprot
Q62877
resolver
uniprot
Q6ZWQ8
resolver
uniprot_entry
CHP1_MOUSE
resolver
uniprot_sec
Q62877
resolver
uniprot_sec
Q6ZWQ8
resolver
amino_acid_sequence
MGSRASTLLRDEELEEIKKETGFSHSQITRLYSRFTSLDKGENGTLSREDFQRIPELAINPLGDRIINAFFSEGEDQVNFRGFMRTLAHFRPIEDNEKSKDVNGPEPLNSRSNKLHFAFRLYDLDKDDKISRDELLQVLRMMVGVNISDEQLGSIADRTIQEADQDGDSAISFTEFVKVLEKVDVEQKMSIRFLH
uniprot
proteins
function
FUNCTION: Calcium-binding protein involved in different processes such as regulation of vesicular trafficking, plasma membrane Na(+)/H(+) exchanger and gene transcription. Involved in the constitutive exocytic membrane traffic. Mediates the association between microtubules and membrane-bound organelles of the endoplasmic reticulum and Golgi apparatus and is also required for the targeting and fusion of transcytotic vesicles (TCV) with the plasma membrane. Functions as an integral cofactor in cell pH regulation by controlling plasma membrane-type Na(+)/H(+) exchange activity. Affects the pH sensitivity of SLC9A1/NHE1 by increasing its sensitivity at acidic pH. Required for the stabilization and localization of SLC9A1/NHE1 at the plasma membranes. Inhibits serum- and GTPase-stimulated Na(+)/H(+) exchange. Plays a role as an inhibitor of ribosomal RNA transcription by repressing the nucleolar UBF1 transcriptional activity. May sequester UBF1 in the nucleoplasm and limit its translocation to the nucleolus. Associates to the ribosomal gene promoter. Acts as a negative regulator of the calcineurin/NFAT signaling pathway. Inhibits NFAT nuclear translocation and transcriptional activity by suppressing the calcium-dependent calcineurin phosphatase activity. Also negatively regulates the kinase activity of the apoptosis-induced kinase STK17B. Inhibits both STK17B auto- and substrate-phosphorylations in a calcium-dependent manner (By similarity). {ECO:0000250|UniProtKB:Q99653}.
uniprot
proteins
mass_dalton
22432
uniprot
proteins
post_translational_modification
PTM: Phosphorylated; decreased phosphorylation is associated with an increase in SLC9A1/NHE1 Na(+)/H(+) exchange activity. Phosphorylation occurs in serum-dependent manner. The phosphorylation state may regulate the binding to SLC9A1/NHE1 (By similarity). {ECO:0000250}.; PTM: Both N-myristoylation and calcium-mediated conformational changes are essential for its function in exocytic traffic. N-myristoylation is required for its association with microtubules and interaction with GAPDH, but not for the constitutive association to membranes (By similarity). {ECO:0000250}.
uniprot
proteins
protein_family
CHP subfamily
uniprot
proteins
protein_family
Calcineurin regulatory subunit family
uniprot
proteins
pubmed
15489334
uniprot
proteins
pubmed
16141072
uniprot
proteins
pubmed
21183079
uniprot
proteins
pubmed
8967452
uniprot
proteins
sequence_length
195
uniprot
proteins
subcellular_location
SUBCELLULAR LOCATION: Nucleus {ECO:0000250|UniProtKB:P61023}. Cytoplasm {ECO:0000250|UniProtKB:P61023}. Cytoplasm, cytoskeleton {ECO:0000250|UniProtKB:P61023}. Endomembrane system {ECO:0000250|UniProtKB:P61023}. Endoplasmic reticulum-Golgi intermediate compartment {ECO:0000250|UniProtKB:P61023}. Endoplasmic reticulum {ECO:0000250|UniProtKB:P61023}. Cell membrane {ECO:0000250|UniProtKB:P61023}. Membrane {ECO:0000250|UniProtKB:Q99653}; Lipid-anchor {ECO:0000250|UniProtKB:Q99653}. Note=Localizes in cytoplasmic compartments in dividing cells. Localizes in the nucleus in quiescent cells. Exported from the nucleus to the cytoplasm through a nuclear export signal (NES) and CRM1-dependent pathway. May shuttle between nucleus and cytoplasm. Localizes with the microtubule-organizing center (MTOC) and extends toward the periphery along microtubules. Associates with membranes of the early secretory pathway in a GAPDH-independent, N-myristoylation- and calcium-dependent manner. Colocalizes with the mitotic spindle microtubules. Colocalizes with GAPDH along microtubules. Colocalizes with SLC9A1 at the endoplasmic reticulum and plasma membrane. Colocalizes with STK17B at the plasma membrane. {ECO:0000250|UniProtKB:P61023}.
uniprot
proteins