SPRR1B
protein-codingsmall proline rich protein 1B, the group of Small proline rich proteins
Gene summary
The protein encoded by this gene is an envelope protein of keratinocytes. The encoded protein is crosslinked to membrane proteins by transglutaminase, forming an insoluble layer under the plasma membrane. This protein is proline-rich and contains several tandem amino acid repeats. [provided by RefSeq, Nov 2015]
- SPRR1
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~1.7 kbGenCC Phenotypes & Disease Associations
Curated gene-disease validity assertions and inheritance patterns
No GenCC data available for this gene.
ClinVar Associated Diseases & Phenotypes
Reported disease conditions connected to SPRR1B variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_003125.3. Only rare variants are included.
We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.
Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.
| Effect | PathogenicP | Likely pathogenicLP | VUS | Likely benignLB | BenignB | Sum |
|---|---|---|---|---|---|---|
| synonymous | 0 | |||||
| missense | 20 | 20 | ||||
| nonsense | 0 | |||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 0 | |||||
| Total | 0 | 0 | 20 | 0 | 0 | 20 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_003116.2 | 1 | MANE Select | |
| Ensembl | ENSP00000306461.4 | 1 | MANE Select | |
| Ensembl | ENSP00000774480.1 | 1 | Standard | |
| Ensembl | ENSP00000805834.1 | 1 | Standard |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Pathways ConsensusPathDB
- Vitamin D Receptor Pathway
- Keratinization
- Developmental Biology
- Formation of the cornified envelope
Biological Process
- epidermis development
- peptide cross-linking
- keratinocyte differentiation
- cornification
Molecular Function
- structural molecule activity
- protein binding, bridging
Cellular Component
- cornified envelope
- cytoplasm
- cytosol
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000307098
- Coding exons
- 1
- Length
- 1699
- Individuals with no LoFs
- 125736
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 7
- Defined
- 125743
- p
- 0.0000278
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | -0.637 | 58 | 45.9 | 1.26 | 0.00000204 | 575 |
| Missense (PolyPhen) | 15 | 14.413 | 1.0407 | 175 | ||
| Synonymous | -0.569 | 20 | 17.0 | 1.18 | 7.49e-7 | 169 |
| Loss of Function | -0.755 | 4 | 2.67 | 1.50 | 1.18e-7 | 27 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0 | 0.0 | absent |
| Latino/Admixed American | 0 | 0.0 | absent |
| Ashkenazi Jewish | 0.00010 | 0.000099 | rare |
| East Asian | 0.000054 | 0.000054 | rare |
| Finnish | 0 | 0.0 | absent |
| European (Non-Finnish) | 0.000035 | 0.000035 | rare |
| South Asian | 0.000033 | 0.000033 | rare |
| Other | 0 | 0.0 | absent |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: Cross-linked envelope protein of keratinocytes. It is a keratinocyte protein that first appears in the cell cytosol, but ultimately becomes cross-linked to membrane proteins by transglutaminase. All that results in the formation of an insoluble envelope beneath the plasma membrane. Can function as both amine donor and acceptor in transglutaminase-mediated cross- linkage.;
Recessive Scores
- pRec
- 0.128
Intolerance Scores
- LoFtool
- 0.450
- RVIS EVS
- 0.1
- RVIS percentile EVS
- 61.28
Essentials
- Essential (CRISPR)
- N
- Essential (gene trap)
- N
- Indispensability pred.
- N
- Indispensability score
- 0.0702
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |