LIMS1
LIM and senescent cell antigen-like-containing domain protein 1
Also known as: LIMS1_HUMAN, PINCH, PINCH1
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P48059
- Gene
- LIMS1
- Ensembl
- ENSG00000169756
- Chromosome
- 2
- Canonical length
- 325 aa
- Protein class
- Plasma proteins, Predicted intracellular proteins
- Subcellular location
- Focal adhesion sites,Cytosol
OverviewNCBI Gene
The protein encoded by this gene is an adaptor protein which contains five LIM domains, or double zinc fingers. The protein is likely involved in integrin signaling through its LIM domain-mediated interaction with integrin-linked kinase, found in focal adhesion plaques. It is also thought to act as a bridge linking integrin-linked kinase to NCK adaptor protein 2, which is involved in growth factor receptor kinase signaling pathways. Its localization to the periphery of spreading cells also suggests that this protein may play a role in integrin-mediated cell adhesion or spreading. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2010]
Canonical amino-acid sequenceUniProt
325 residues, UniProt reviewed canonical sequence.
>P48059|LIMS1
1 MANALASATC ERCKGGFAPA EKIVNSNGEL YHEQCFVCAQ CFQQFPEGLF YEFEGRKYCE
61 HDFQMLFAPC CHQCGEFIIG RVIKAMNNSW HPECFRCDLC QEVLADIGFV KNAGRHLCRP
121 CHNREKARGL GKYICQKCHA IIDEQPLIFK NDPYHPDHFN CANCGKELTA DARELKGELY
181 CLPCHDKMGV PICGACRRPI EGRVVNAMGK QWHVEHFVCA KCEKPFLGHR HYERKGLAYC
241 ETHYNQLFGD VCFHCNRVIE GDVVSALNKA WCVNCFACST CNTKLTLKNK FVEFDMKPVC
301 KKCYEKFPLE LKKRLKKLAE TLGRKLocalizationUniProt · AlphaFold · HPA
Whether an antibody against LIMS1 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Cell surface
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.36
- Highest tissue expression
- 93 nTPM
Expression across tissuesHPA
Tissue
- skeletal muscle: 93 nTPM
- blood vessel: 50 nTPM
- adrenal gland: 42 nTPM
- tongue: 38 nTPM
- adipose tissue: 38 nTPM
- lymph node: 36 nTPM
Single-cell type
- platelets: 4,078 nCPM
- megakaryocytes: 3,796 nCPM
- monocytes: 1,251 nCPM
- neutrophils: 901 nCPM
- renal collecting duct intercalated cells: 896 nCPM
- endometrial glandular cells: 719 nCPM
Immune cell
- basophil: 202 nTPM
- eosinophil: 183 nTPM
- non-classical monocyte: 148 nTPM
- total PBMC: 133 nTPM
- intermediate monocyte: 113 nTPM
- T-reg: 89 nTPM
Brain region
- white matter: 36 nTPM
- thalamus: 35 nTPM
- medulla oblongata: 31 nTPM
- pons: 28 nTPM
- spinal cord: 27 nTPM
- hypothalamus: 27 nTPM
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.77
- gnomAD pLI
- 0
- gnomAD missense Z
- 1.42
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- cell-cell adhesion
- cell-cell junction organization
- cell-matrix adhesion
- cellular response to transforming growth factor beta stimulus
- negative regulation of DNA-templated transcription
- positive regulation of canonical NF-kappaB signal transduction
- positive regulation of integrin-mediated signaling pathway
- positive regulation of substrate adhesion-dependent cell spreading
- tumor necrosis factor-mediated signaling pathway
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of LIMS1 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads LIMS1 as an antibody target. Whether an autoantibody or antibody against LIMS1 could matter depends on whether native LIMS1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
LIMS1 is annotated at the cell surface, where native LIMS1 is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.
Annotation status
The present source text does not explicitly label LIMS1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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