TIAM1 - TIAM Rac1 associated GEF 1 Gene
Also Known as NEDLDS; TIAM-1
Species: Homo sapiens
About TIAM1
This gene has 8 transcripts (splice variants), 284 orthologues and 22 paralogues. Broad expression in esophagus (RPKM 7.7), skin (RPKM 6.8) and 23 other tissues.
Summary
This gene encodes a RAC1-specific guanine nucleotide exchange factor (GEF). GEFs mediate the exchange of guanosine diphosphate (GDP) for guanosine triphosphate (GTP). The binding of GTP induces a conformational change in RAC1 that allows downstream effectors to bind and transduce a signal. This gene thus regulates RAC1 signaling pathways that affect cell shape, migration, adhesion, growth, survival, and polarity, as well as influencing actin cytoskeletal formation, endocytosis, and membrane trafficking. This gene thus plays an important role in cell invasion, metastasis, and carcinogenesis. In addition to RAC1, the encoded protein activates additional Rho-like GTPases such as CDC42, RAC2, RAC3 and RHOA. This gene encodes multiple protein isoforms that experience a diverse array of intramolecular, protein-protein, and phosphorylation interactions as well as phosphoinositide binding. Both the longer and shorter isoforms have C-terminal Dbl homology (DH) and pleckstrin homology (PH) domains while only the longer isoforms of this gene have the N-terminal myristoylation site and the downstream N-terminal PH domain, ras-binding domain (RBD), and PSD-95/DlgA/ZO-1 (PDZ) domain. [provided by RefSeq, Jul 2017]
TIAM1 Products (12)
| mRNA | Protein | Name |
|---|---|---|
| NM_001353684.2 | NP_001340613.1 | rho guanine nucleotide exchange factor TIAM1 isoform 2 |
| NM_001353685.2 | NP_001340614.1 | rho guanine nucleotide exchange factor TIAM1 isoform 3 |
| NM_001353686.2 | NP_001340615.1 | rho guanine nucleotide exchange factor TIAM1 isoform 4 |
| NM_001353687.2 | NP_001340616.1 | rho guanine nucleotide exchange factor TIAM1 isoform 5 |
| NM_001353688.1 | NP_001340617.1 | rho guanine nucleotide exchange factor TIAM1 isoform 1 |
| NM_001353689.1 | NP_001340618.1 | rho guanine nucleotide exchange factor TIAM1 isoform 1 |
| NM_001353690.1 | NP_001340619.1 | rho guanine nucleotide exchange factor TIAM1 isoform 1 |
| NM_001353691.1 | NP_001340620.1 | rho guanine nucleotide exchange factor TIAM1 isoform 1 |
| NM_001353692.1 | NP_001340621.1 | rho guanine nucleotide exchange factor TIAM1 isoform 1 |
| NM_001353693.1 | NP_001340622.1 | rho guanine nucleotide exchange factor TIAM1 isoform 1 |
| NM_001353694.2 | NP_001340623.1 | rho guanine nucleotide exchange factor TIAM1 isoform 1 |
| NM_003253.3 | NP_003244.2 | rho guanine nucleotide exchange factor TIAM1 isoform 1 |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| enables guanyl-nucleotide exchange factor activity |
EXP
EXP: Inferred from Experiment
|
15721239 | GOA |
| enables guanyl-nucleotide exchange factor activity |
IDA
IDA: Inferred from direct assay
|
23109420 | GOA |
| enables guanyl-nucleotide exchange factor activity |
IMP
IMP: Inferred from mutant phenotype
|
20361982 | GOA |
| enables kinase binding |
IPI
IPI: Inferred from physical interaction
|
23109420 | GOA |
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
17440041 | GOA |
| Cellular Component GO Annotation | Evidence | References | Source |
|---|---|---|---|
| located in cell-cell contact zone |
IDA
IDA: Inferred from direct assay
|
20361982 | GOA |
| located in cell-cell junction |
IDA
IDA: Inferred from direct assay
|
20332120 | GOA |
| located in cytosol |
IDA
IDA: Inferred from direct assay
|
23109420 | GOA |
| located in plasma membrane |
IDA
IDA: Inferred from direct assay
|
23109420 | GOA |
TIAM1 Protein Structure
PH: PH domain (444 - 546)
RBD: Raf-like Ras-binding domain (766 - 832)
PDZ: PDZ domain (Also known as DHR or GLGF) (854 - 918)
RhoGEF: RhoGEF domain (1044 - 1233)
- 0
- 300
- 600
- 900
- 1200
- 1500
- 1591 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
rho guanine nucleotide exchange factor TIAM1 |
|
TIAM1 Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | References |
|---|---|---|---|---|---|---|---|
|
Intra
|
TIAM1 | Q13009 | CASK | Homo sapiens | O14936 | 35914814 | |
|
Intra
|
TIAM1 | Q13009 | CNTNAP4 | Homo sapiens | Q9C0A0-1 | 23395182 | |
|
Intra
|
TIAM1 | Q13009 | CNTNAP4 | Homo sapiens | Q9C0A0-1 | 23395182 | |
|
Intra
|
TIAM1 | Q13009 | SDC1 | Homo sapiens | P18827 | 23395182 | |
|
Intra
|
TIAM1 | Q13009 | SDC1 | Homo sapiens | P18827 | 23395182 | |
|
Intra
|
TIAM1 | Q13009 | SDC1 | Homo sapiens | P18827 | 23395182 | |
|
Intra
|
TIAM1 | Q13009 | SDC1 | Homo sapiens | P18827 | 23395182 |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Neurodevelopmental Disorder With Language Delay And Seizures |
|
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| Lymphoma |
|
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| Quadriplegia |
|
|
| Colorectal Cancer |
|
|
| Immunodeficiency 73a With Defective Neutrophil Chemotaxis And Leukocytosis |
|
|
| Amyotrophic Lateral Sclerosis 1 |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Canis familiaris | TIAM1 | VGNC | VGNC:56122 |
| Bos taurus | TIAM1 | VGNC | VGNC:56334 |
| Felis catus | TIAM1 | VGNC | VGNC:82570 |
| Mus musculus | TIAM1 | MGD | MGI:103306 |
| Rattus norvegicus | TIAM1 | RGD | RGD:1307455 |
| Macaca mulatta | TIAM1 | VGNC | VGNC:81886 |
| Others | TIAM1 | NCBI |