Unknown

Dataset Information

0

The extant immunoglobulin superfamily, member 1 gene results from an ancestral gene duplication in eutherian mammals.


ABSTRACT: Immunoglobulin superfamily, member 1 (IGSF1) is a transmembrane glycoprotein with high expression in the mammalian pituitary gland. Mutations in the IGSF1 gene cause congenital central hypothyroidism in humans. The IGSF1 protein is co-translationally cleaved into N- and C-terminal domains (NTD and CTD), the latter of which is trafficked to the plasma membrane and appears to be the functional portion of the molecule. Though the IGSF1-NTD is retained in the endoplasmic reticulum and has no apparent function, it has a high degree of sequence identity with the IGSF1-CTD and is conserved across mammalian species. Based upon phylogenetic analyses, we propose that the ancestral IGSF1 gene encoded the IGSF1-CTD, which was duplicated and integrated immediately upstream of itself, yielding a larger protein encompassing the IGSF1-NTD and IGSF1-CTD. The selective pressures favoring the initial gene duplication and subsequent retention of a conserved IGSF1-NTD are unresolved.

SUBMITTER: Smith CL 

PROVIDER: S-EPMC9162367 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature

altmetric image

Publications

The extant immunoglobulin superfamily, member 1 gene results from an ancestral gene duplication in eutherian mammals.

Smith Courtney L CL   Harrison Paul M PM   Bernard Daniel J DJ  

PloS one 20220602 6


Immunoglobulin superfamily, member 1 (IGSF1) is a transmembrane glycoprotein with high expression in the mammalian pituitary gland. Mutations in the IGSF1 gene cause congenital central hypothyroidism in humans. The IGSF1 protein is co-translationally cleaved into N- and C-terminal domains (NTD and CTD), the latter of which is trafficked to the plasma membrane and appears to be the functional portion of the molecule. Though the IGSF1-NTD is retained in the endoplasmic reticulum and has no apparen  ...[more]

Similar Datasets

| S-EPMC9095258 | biostudies-literature
| S-EPMC5013011 | biostudies-literature
| S-EPMC5501590 | biostudies-literature
| S-EPMC4603332 | biostudies-literature
| S-EPMC2174272 | biostudies-literature
| S-EPMC9178871 | biostudies-literature
| S-EPMC3128046 | biostudies-literature
| S-EPMC7585383 | biostudies-literature
| S-EPMC4500545 | biostudies-literature
| S-EPMC316690 | biostudies-literature