background:
SPCS3 (signal peptidase complex subunit 3), also known as SPC3, is a 36 amino acid single-pass type II membrane protein that localizes to both the microsome and the endoplasmic reticulum (ER) and belongs to the SPCS (signal peptidase complex subunit) family. Existing as a component of the microsomal signal peptidase complex which consists of five members, SPCS3 functions to remove signal peptides from proteins that are translated to the lumen of the ER. The gene encoding SPCS3 maps to human chromosome 4, which encodes nearly 6% of the human genome and has the largest gene deserts (regions of the genome with no protein encoding genes) of all of the human chromosomes. Defects in some of the genes located on chromosome 4 are associated with Huntington's disease, Ellis-van Creveld syndrome, methylmalonic acidemia and polycystic kidney disease.
Function:
A component of the microsomal signal peptidase complex which removes signal peptides from nascent proteins as they are translocated into the lumen of the endoplasmic reticulum.
Subunit:
Component of the microsomal signal peptidase complex which consists of five members: SEC11A, SEC11C, SPCS1, SPCS2 and SPCS3.
Subcellular Location:
Endoplasmic reticulum and Microsome membrane;: Single-pass type II membrane protein
Similarity:
Belongs to the SPCS3 family.
Database links:
Entrez Gene: 767917 Cow
Entrez Gene: 404005 Dog
Entrez Gene: 60559 Human
Entrez Gene: 76219 Mouse
Entrez Gene: 76976 Mouse
Entrez Gene: 10072464 Rat
Entrez Gene: 317409 Rat
SwissProt: Q3SZU5 Cow
SwissProt: P61008 Dog
SwissProt: P61009 Human
SwissProt: Q9D365 Mouse
SwissProt: Q568Z4 Rat
Unigene: 6322 Cow
Unigene: 3875 Dog
Unigene: 42194 Human
Unigene: 328305 Mouse
Unigene: 482965 Mouse
Unigene: 162344 Rat
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
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