ASpdb: an integrative knowledgebase of human protein isoforms from experimental and AI-predicted structures
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Center for Computational Systems Medicine
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Protein Summary

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AS Summary

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Protein Functional Features

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Gene Isoform Structures and Expression Levels

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Protein Structures

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pLDDT Score Distribution

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Ramachandran Plot of Protein Structures

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Potential Active Site Information

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Protein Structure and Feature Comparision

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Protein-Protein Interaction

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Related Drugs

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Related Diseases

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Clinically Important Variants

Protein:LSS

Protein Summary

check button Gene summary
Gene name: LSS
ASpdb.0 ID: 4047
Gene
Gene symbol

LSS

Gene ID

4047

Gene namelanosterol synthase
SynonymsAPMR4|CTRCT44|HYPT14|OSC
Cytomap

21q22.3

Type of geneprotein-coding
Descriptionlanosterol synthase2,3-epoxysqualene-lanosterol cyclaseepididymis secretory sperm binding proteinhOSClanosterol synthase (2,3-oxidosqualene-lanosterol cyclase)oxidosqualene--lanosterol cyclase
Modification date20240305
UniProtAcc

P48449


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneLSS

GO:0005789

endoplasmic reticulum membrane

30401459

GeneLSS

GO:0005811

lipid droplet

14741744|21498505



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
P48449-1P48449-1_1w6k_A.pdb1W6KX-ray2.1A6732

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
P48449LSSP48449-1P48449-2732652180Deletionnonenone00
P48449LSSP48449-1P48449-3732721133143Deletionnonenone132132

check buttonMultiple sequence alignment of our canonical and alternatively spliced LSS

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of LSS
UniProt-idENSGENSTENSP
P48449-1ENSG00000160285.15ENST00000356396.8ENSP00000348762.3
P48449-1ENSG00000160285.15ENST00000397728.8ENSP00000380837.2
P48449-2ENSG00000160285.15ENST00000457828.6ENSP00000409191.2
P48449-3ENSG00000160285.15ENST00000522411.5ENSP00000429133.1

UniProt-idNM IDNP ID
P48449-1NM_001001438.2NP_001001438.1
P48449-1NM_002340.5NP_002331.3
P48449-2NM_001145437.1NP_001138909.1
P48449-3NM_001145436.1NP_001138908.1

check buttonAmino acid sequences of our canonical and alternatively spliced LSS
accession_idProtein sequence
P48449-1MTEGTCLRRRGGPYKTEPATDLGRWRLNCERGRQTWTYLQDERAGREQTGLEAYALGLDTKNYFKDLPKAHTAFEGALNGMTFYVGLQAE
DGHWTGDYGGPLFLLPGLLITCHVARIPLPAGYREEIVRYLRSVQLPDGGWGLHIEDKSTVFGTALNYVSLRILGVGPDDPDLVRARNIL
HKKGGAVAIPSWGKFWLAVLNVYSWEGLNTLFPEMWLFPDWAPAHPSTLWCHCRQVYLPMSYCYAVRLSAAEDPLVQSLRQELYVEDFAS
IDWLAQRNNVAPDELYTPHSWLLRVVYALLNLYEHHHSAHLRQRAVQKLYEHIVADDRFTKSISIGPISKTINMLVRWYVDGPASTAFQE
HVSRIPDYLWMGLDGMKMQGTNGSQIWDTAFAIQALLEAGGHHRPEFSSCLQKAHEFLRLSQVPDNPPDYQKYYRQMRKGGFSFSTLDCG
WIVSDCTAEALKAVLLLQEKCPHVTEHIPRERLCDAVAVLLNMRNPDGGFATYETKRGGHLLELLNPSEVFGDIMIDYTYVECTSAVMQA
LKYFHKRFPEHRAAEIRETLTQGLEFCRRQQRADGSWEGSWGVCFTYGTWFGLEAFACMGQTYRDGTACAEVSRACDFLLSRQMADGGWG
EDFESCEERRYLQSAQSQIHNTCWAMMGLMAVRHPDIEAQERGVRCLLEKQLPNGDWPQENIAGVFNKSCAISYTSYRNIFPIWALGRFS
P48449-2MTFYVGLQAEDGHWTGDYGGPLFLLPGLLITCHVARIPLPAGYREEIVRYLRSVQLPDGGWGLHIEDKSTVFGTALNYVSLRILGVGPDD
PDLVRARNILHKKGGAVAIPSWGKFWLAVLNVYSWEGLNTLFPEMWLFPDWAPAHPSTLWCHCRQVYLPMSYCYAVRLSAAEDPLVQSLR
QELYVEDFASIDWLAQRNNVAPDELYTPHSWLLRVVYALLNLYEHHHSAHLRQRAVQKLYEHIVADDRFTKSISIGPISKTINMLVRWYV
DGPASTAFQEHVSRIPDYLWMGLDGMKMQGTNGSQIWDTAFAIQALLEAGGHHRPEFSSCLQKAHEFLRLSQVPDNPPDYQKYYRQMRKG
GFSFSTLDCGWIVSDCTAEALKAVLLLQEKCPHVTEHIPRERLCDAVAVLLNMRNPDGGFATYETKRGGHLLELLNPSEVFGDIMIDYTY
VECTSAVMQALKYFHKRFPEHRAAEIRETLTQGLEFCRRQQRADGSWEGSWGVCFTYGTWFGLEAFACMGQTYRDGTACAEVSRACDFLL
SRQMADGGWGEDFESCEERRYLQSAQSQIHNTCWAMMGLMAVRHPDIEAQERGVRCLLEKQLPNGDWPQENIAGVFNKSCAISYTSYRNI
P48449-3MTEGTCLRRRGGPYKTEPATDLGRWRLNCERGRQTWTYLQDERAGREQTGLEAYALGLDTKNYFKDLPKAHTAFEGALNGMTFYVGLQAE
DGHWTGDYGGPLFLLPGLLITCHVARIPLPAGYREEIVRYLRHIEDKSTVFGTALNYVSLRILGVGPDDPDLVRARNILHKKGGAVAIPS
WGKFWLAVLNVYSWEGLNTLFPEMWLFPDWAPAHPSTLWCHCRQVYLPMSYCYAVRLSAAEDPLVQSLRQELYVEDFASIDWLAQRNNVA
PDELYTPHSWLLRVVYALLNLYEHHHSAHLRQRAVQKLYEHIVADDRFTKSISIGPISKTINMLVRWYVDGPASTAFQEHVSRIPDYLWM
GLDGMKMQGTNGSQIWDTAFAIQALLEAGGHHRPEFSSCLQKAHEFLRLSQVPDNPPDYQKYYRQMRKGGFSFSTLDCGWIVSDCTAEAL
KAVLLLQEKCPHVTEHIPRERLCDAVAVLLNMRNPDGGFATYETKRGGHLLELLNPSEVFGDIMIDYTYVECTSAVMQALKYFHKRFPEH
RAAEIRETLTQGLEFCRRQQRADGSWEGSWGVCFTYGTWFGLEAFACMGQTYRDGTACAEVSRACDFLLSRQMADGGWGEDFESCEERRY
LQSAQSQIHNTCWAMMGLMAVRHPDIEAQERGVRCLLEKQLPNGDWPQENIAGVFNKSCAISYTSYRNIFPIWALGRFSQLYPERALAGH

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
LSS (go to UniProt):P48449

check buttonRetention analysis result of protein across 39 protein features of UniProt such as six molecule processing features, 13 region features, four site features, six amino acid modification features, two natural variation features, five experimental info features, and 3 secondary structure features. Here, because of limited space for viewing, we only show the protein feature retention information belong to the 13 regional features. All retention annotation result can be downloaded at

download page

* Minus value of BPloci means that the break pointn is located before the CDS.
- Retained protein feature among the 13 regional features.
Accession_idSubsectionStartEndFuncitonal featureSplicing information
P48449Repeat77121Note=PFTB 1;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=1;End=80
P48449Repeat124165Note=PFTB 2;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=133;End=143


Gene Isoform Structures and Expression Levels for LSS

check buttonGene structures of our canonical and alternative spliced genes of LSS
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of LSS

check button Expression levels of gene isoforms across GTEx.
gtex expression

check button Expression levels of gene isoforms across TCGA.
tcga expression


Protein Structures

check button PDB and CIF files of the predicted protein structures
* Here we show the 3D structure of the proteins using Mol*. AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100. Model confidence is shown from the pLDDT values per residue. pLDDT corresponds to the model’s prediction of its score on the local Distance Difference Test. It is a measure of local accuracy (from AlphfaFold website). To color code individual residues, we transformed individual PDB files into CIF format.
3D view using mol* of P48449-1
3D view using mol* of P48449-2
3D view using mol* of P48449-3


pLDDT Score Distribution

check button pLDDT score distribution of the predicted protein structures from AlphaFold2
* AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100.
pLDDT distribution across the protein length of P48449-1
all structure
pLDDT distribution across the protein length of P48449-2
all structure
pLDDT distribution across the protein length of P48449-3
all structure


Ramachandran Plot of Protein Structures


check button Ramachandran plot of the torsional angles - phi (φ)and psi (ψ) - of the residues (amino acids) contained in this protein peptide.
Ramachandran plot of P48449-1
all structure
Ramachandran plot of P48449-3
all structure

Potential Active Site Information


check button The potential binding sites of these proteins were identified using SiteMap, a module of the Schrodinger suite.
UniProt-idSite scoreSizeD scoreVolumeExposureEnclosureContactPhobicPhilicBalanceDon/AccResidues
P48449-11.2521841.306284.690.2810.9631.2412.6740.654.1141.4698,103,104,192,230,232,233,236,237,335,336,337,338
,339,380,381,387,444,453,455,456,502,503,521,524,5
32,581,587,695,696,697,702,704
P48449-21.2441281.33254.5060.3570.8921.082.8310.4436.3861.498130,131,132,133,135,136,143,144,146,149,154,157,16
1,213,216,217,220,435,437,445
P48449-31.2441931.294284.690.2850.9591.22.4110.6773.5611.1198,101,103,104,181,219,221,222,225,324,325,326,327
,328,369,370,376,433,442,444,445,491,492,510,513,5
21,570,576,684,685,686,691,693

Protein Structure and Feature Comparision


check button Protein Structure Comparision Using Template Modeling Scores (TM-score).
all structure

check button Protein Structure Comparision Visualization with mol*. between Canonical predicted structure (AF2)(orange) vs Canonical validated structure (PDB)(green)
3D view using mol* of P48449-1_P48449-1_1w6k_A.pdb

check button Protein Structure Comparision Visualization with mol*. between Canonical validated structure (PDB)(orange) vs Alternative predicted structure (AF2)(green)
3D view using mol* of P48449-1_1w6k_A_P48449-2.pdb
3D view using mol* of P48449-1_1w6k_A_P48449-3.pdb

check button Protein Structure Comparision Visualization with mol*. between Canonical predicted structure (AF2)(orange) vs Alternative predicted structure (AF2)(green)
3D view using mol* of P48449-1_P48449-2.pdb
3D view using mol* of P48449-1_P48449-3.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/P48449-1_vs_P48449-2.png
all structure<
./stats/secondary_structure/figure/P48449-1_vs_P48449-3.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/P48449-1_vs_P48449-2.png
all structure<
./stats/relative_asa/P48449-1_vs_P48449-3.png
all structure<


Protein-Protein Interaction


check button Interactors from UniProt.
Accession_idSubsectionStartEndFuncitonal featureSplicing information


check button Interactors from STRING.
Gene nameInteractors


Related Drugs to LSS


check button Drugs targeting this gene/protein.
(DrugBank)
UniProt accessionGene nameDrugBank IDDrug nameDrug groupActions
P48449LSSDB03696Lanosterolexperimental
P48449LSSDB02016R048-8071experimental

Related Diseases to LSS


check button Previous studies relating to the alternative splicing of LSS and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in LSS


check button (ClinVar, 04/20/2024)
accession_iduniprot_idgene_nameTypeVariantClinical_significance