GNB1
protein-coding gene in the species Homo sapiens

Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 is a protein that in humans is encoded by the GNB1 gene.
Function
Heterotrimeric guanine nucleotide-binding proteins (G proteins), which integrate signals between receptors and effector proteins, are composed of an alpha, a beta, and a gamma subunit. These subunits are encoded by families of related genes. This gene encodes a beta subunit. Beta subunits are important regulators of alpha subunits, as well as of certain signal transduction receptors and effectors. This gene uses alternative polyadenylation signals.
Interactive pathway map
Click on genes, proteins and metabolites below to link to respective articles.
Interactions
GNB1 has been shown to interact with GNG4.
Mutations
Mutations in the GNB1 gene can cause developmental delays, seizures, and other health problems. The GNB1 Advocacy Group is the primary organization in the United States connecting patients to each other and to researchers working to cure the effects of these mutations.
This brief starts where responsible research should: with the source description of “GNB1” as protein-coding gene in the species Homo sapiens. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the science & nature register because the source frames it as protein-coding gene in the species Homo sapiens. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Sep 2, 2026. The linked authority identifier is Q18026249. None of the 0 selected statements returned an explicit reference.
Scientific names, classifications and consensus can change while older terminology persists in catalogues and historical literature. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.
- Current terminology
- Classification context
- Finding cited technical literature
Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.
Three-step research path
- Establish the record: confirm the title “GNB1”, its source revision and the description used here.
- Expand the search: follow GNB1 primary sources, GNB1 archive and GNB1 research across catalogues and specialist indexes.
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Questions for further research
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This entry incorporates text from “GNB1” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.