Identification
HMDB Protein ID CDBP03071
Secondary Accession Numbers Not Available
Name Sigma non-opioid intracellular receptor 1
Description Not Available
Synonyms
  1. Aging-associated gene 8 protein
  2. SIG-1R
  3. SR-BP
  4. SR31747-binding protein
  5. Sigma 1-type opioid receptor
  6. Sigma1-receptor
  7. Sigma1R
  8. hSigmaR1
Gene Name SIGMAR1
Protein Type Receptor
Biological Properties
General Function Involved in C-8 sterol isomerase activity
Specific Function Functions in lipid transport from the endoplasmic reticulum and is involved in a wide array of cellular functions probably through regulation of the biogenesis of lipid microdomains at the plasma membrane. Involved in the regulation of different receptors it plays a role in BDNF signaling and EGF signaling. Also regulates ion channels like the potassium channel and could modulate neurotransmitter release. Plays a role in calcium signaling through modulation together with ANK2 of the ITP3R-dependent calcium efflux at the endoplasmic reticulum. Plays a role in several other cell functions including proliferation, survival and death. Originally identified for its ability to bind various psychoactive drugs it is involved in learning processes, memory and mood alteration
GO Classification
Component
endoplasmic reticulum
organelle
membrane-bounded organelle
intracellular membrane-bounded organelle
Function
c-8 sterol isomerase activity
intramolecular oxidoreductase activity, transposing c=c bonds
isomerase activity
intramolecular oxidoreductase activity
catalytic activity
Process
sterol metabolic process
metabolic process
ergosterol metabolic process
ergosterol biosynthetic process
small molecule metabolic process
alcohol metabolic process
Cellular Location
  1. Cell membrane
  2. Endoplasmic reticulum membrane
  3. Cell junction
  4. Nucleus outer membrane
  5. Cell projection
  6. Nucleus inner membrane
  7. growth cone
  8. Lipid droplet
Pathways
Gene Properties
Chromosome Location Chromosome:9
Locus 9p13.3
SNPs SIGMAR1
Gene Sequence
>672 bp
ATGCAGTGGGCCGTGGGCCGGCGGTGGGCGTGGGCCGCGCTGCTCCTGGCTGTCGCAGCG
GTGCTGACCCAGGTCGTCTGGCTCTGGCTGGGTACGCAGAGCTTCGTCTTCCAGCGCGAA
GAGATAGCGCAGTTGGCGCGGCAGTACGCTGGGCTGGACCACGAGCTGGCCTTCTCTCGT
CTGATCGTGGAGCTGCGGCGGCTGCACCCAGGCCACGTGCTGCCCGACGAGGAGCTGCAG
TGGGTGTTCGTGAATGCGGGTGGCTGGATGGGCGCCATGTGCCTTCTGCACGCCTCGCTG
TCCGAGTATGTGCTGCTCTTCGGCACCGCCTTGGGCTCCCGCGGCCACTCGGGGCGCTAC
TGGGCTGAGATCTCGGATACCATCATCTCTGGCACCTTCCACCAGTGGAGAGAGGGCACC
ACCAAAAGTGAGGTCTTCTACCCAGGGGAGACGGTAGTACACGGGCCTGGTGAGGCAACA
GCTGTGGAGTGGGGGCCAAACACATGGATGGTGGAGTACGGCCGGGGCGTCATCCCATCC
ACCCTGGCCTTCGCGCTGGCCGACACTGTCTTCAGCACCCAGGACTTCCTCACCCTCTTC
TATACTCTTCGCTCCTATGCTCGGGGCCTCCGGCTTGAGCTCACCACCTACCTCTTTGGC
CAGGACCCTTGA
Protein Properties
Number of Residues 223
Molecular Weight 25127.5
Theoretical pI 5.87
Pfam Domain Function
Signals
  • ["None"]
Transmembrane Regions
  • ["10-30", "81-101"]
Protein Sequence
>Sigma non-opioid intracellular receptor 1
MQWAVGRRWAWAALLLAVAAVLTQVVWLWLGTQSFVFQREEIAQLARQYAGLDHELAFSR
LIVELRRLHPGHVLPDEELQWVFVNAGGWMGAMCLLHASLSEYVLLFGTALGSRGHSGRY
WAEISDTIISGTFHQWREGTTKSEVFYPGETVVHGPGEATAVEWGPNTWMVEYGRGVIPS
TLAFALADTVFSTQDFLTLFYTLRSYARGLRLELTTYLFGQDP
GenBank ID Protein Not Available
UniProtKB/Swiss-Prot ID Q99720
UniProtKB/Swiss-Prot Entry Name SGMR1_HUMAN
PDB IDs Not Available
GenBank Gene ID U75283
GeneCard ID SIGMAR1
GenAtlas ID SIGMAR1
HGNC ID HGNC:8157
References
General References Not Available