Human Gene CTRB1 (ENST00000361017.9) from GENCODE V44
  Description: Homo sapiens chymotrypsinogen B1 (CTRB1), transcript variant 1, mRNA. (from RefSeq NM_001906)
RefSeq Summary (NM_001906): This gene encodes a member of the serine protease family of enzymes and forms a principal precursor of the pancreatic proteolytic enzymes. The encoded preproprotein is synthesized in the acinar cells of the pancreas and secreted into the small intestine where it undergoes proteolytic activation to generate a functional enzyme. This gene is located adjacent to a related chymotrypsinogen gene. This gene encodes distinct isoforms, some or all of which may undergo similar processing to generate the mature protein. [provided by RefSeq, Jul 2016].
Gencode Transcript: ENST00000361017.9
Gencode Gene: ENSG00000168925.12
Transcript (Including UTRs)
   Position: hg38 chr16:75,218,988-75,224,924 Size: 5,937 Total Exon Count: 7 Strand: +
Coding Region
   Position: hg38 chr16:75,219,008-75,224,866 Size: 5,859 Coding Exon Count: 7 

Page IndexSequence and LinksUniProtKB CommentsPrimersCTDRNA-Seq Expression
Microarray ExpressionRNA StructureProtein StructureOther SpeciesGO AnnotationsmRNA Descriptions
PathwaysOther NamesMethods
Data last updated at UCSC: 2023-08-18 00:09:47

-  Sequence and Links to Tools and Databases
 
Genomic Sequence (chr16:75,218,988-75,224,924)mRNA (may differ from genome)Protein (263 aa)
Gene SorterGenome BrowserOther Species FASTAGene interactionsTable SchemaAlphaFold
BioGPSEnsemblEntrez GeneExonPrimerGencodeGeneCards
HGNCHPRDLynxMalacardsMGIneXtProt
OMIMPubMedReactomeUniProtKBBioGrid CRISPR DB

-  Comments and Description Text from UniProtKB
  ID: CTRB1_HUMAN
DESCRIPTION: RecName: Full=Chymotrypsinogen B; EC=3.4.21.1; Contains: RecName: Full=Chymotrypsin B chain A; Contains: RecName: Full=Chymotrypsin B chain B; Contains: RecName: Full=Chymotrypsin B chain C; Flags: Precursor;
CATALYTIC ACTIVITY: Preferential cleavage: Tyr-|-Xaa, Trp-|-Xaa, Phe-|-Xaa, Leu-|-Xaa.
SUBCELLULAR LOCATION: Secreted, extracellular space.
SIMILARITY: Belongs to the peptidase S1 family.
SIMILARITY: Contains 1 peptidase S1 domain.
WEB RESOURCE: Name=Wikipedia; Note=Chymotrypsin entry; URL="http://en.wikipedia.org/wiki/Chymotrypsin";

-  Primer design for this transcript
 

Primer3Plus can design qPCR Primers that straddle exon-exon-junctions, which amplify only cDNA, not genomic DNA.
Click here to load the transcript sequence and exon structure into Primer3Plus

Exonprimer can design one pair of Sanger sequencing primers around every exon, located in non-genic sequence.
Click here to open Exonprimer with this transcript

To design primers for a non-coding sequence, zoom to a region of interest and select from the drop-down menu: View > In External Tools > Primer3


-  Comparative Toxicogenomics Database (CTD)
  The following chemicals interact with this gene           more ... click here to view the complete list

-  RNA-Seq Expression Data from GTEx (53 Tissues, 570 Donors)
  Highest median expression: 12338.80 RPKM in Pancreas
Total median expression: 12364.89 RPKM



View in GTEx track of Genome Browser    View at GTEx portal     View GTEx Body Map

+  Microarray Expression Data
  Press "+" in the title bar above to open this section.

-  mRNA Secondary Structure of 3' and 5' UTRs
 
RegionFold EnergyBasesEnergy/Base
Display As
5' UTR -1.1020-0.055 Picture PostScript Text
3' UTR -7.5058-0.129 Picture PostScript Text

The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.

-  Protein Domain and Structure Information
  InterPro Domains: Graphical view of domain structure
IPR009003 - Pept_cys/ser_Trypsin-like
IPR018114 - Peptidase_S1/S6_AS
IPR001254 - Peptidase_S1_S6
IPR001314 - Peptidase_S1A

Pfam Domains:
PF00089 - Trypsin

ModBase Predicted Comparative 3D Structure on P17538
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-  Orthologous Genes in Other Species
  Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.
MouseRatZebrafishD. melanogasterC. elegansS. cerevisiae
Genome BrowserGenome BrowserNo orthologGenome BrowserNo orthologNo ortholog
Gene Details     
Gene Sorter     
MGIRGD Ensembl  
Protein SequenceProtein Sequence Protein Sequence  
AlignmentAlignment Alignment  

-  Gene Ontology (GO) Annotations with Structured Vocabulary
  Molecular Function:
GO:0004252 serine-type endopeptidase activity
GO:0008233 peptidase activity
GO:0008236 serine-type peptidase activity
GO:0016787 hydrolase activity

Biological Process:
GO:0006508 proteolysis
GO:0007586 digestion
GO:0009235 cobalamin metabolic process
GO:0022617 extracellular matrix disassembly

Cellular Component:
GO:0005576 extracellular region
GO:0005615 extracellular space


-  Descriptions from all associated GenBank mRNAs
  AK131056 - Homo sapiens cDNA FLJ29022 fis, clone PNC09619, highly similar to Chymotrypsinogen B precursor (EC 3.4.21.1).
BC073145 - Homo sapiens chymotrypsinogen B2, mRNA (cDNA clone MGC:88037 IMAGE:5747536), complete cds.
KJ904297 - Synthetic construct Homo sapiens clone ccsbBroadEn_13691 CTRB2 gene, encodes complete protein.
JD065091 - Sequence 46115 from Patent EP1572962.

-  Biochemical and Signaling Pathways
  Reactome (by CSHL, EBI, and GO)

Protein P17538 (Reactome details) participates in the following event(s):

R-HSA-1592371 Initial activation of proMMP3
R-HSA-1604722 Activation of proMMP9 by proteases
R-HSA-1592389 Activation of Matrix Metalloproteinases
R-HSA-196741 Cobalamin (Cbl, vitamin B12) transport and metabolism
R-HSA-1474228 Degradation of the extracellular matrix
R-HSA-196849 Metabolism of water-soluble vitamins and cofactors
R-HSA-1474244 Extracellular matrix organization
R-HSA-196854 Metabolism of vitamins and cofactors
R-HSA-1430728 Metabolism

-  Other Names for This Gene
  Alternate Gene Symbols: CTRB, CTRB1_HUMAN, ENST00000361017.1, ENST00000361017.2, ENST00000361017.3, ENST00000361017.4, ENST00000361017.5, ENST00000361017.6, ENST00000361017.7, ENST00000361017.8, NM_001906, P17538, uc002fds.1, uc002fds.2, uc002fds.3, uc002fds.4, uc002fds.5
UCSC ID: ENST00000361017.9
RefSeq Accession: NM_001906
Protein: P17538 (aka CTRB1_HUMAN)
CCDS: CCDS32490.1

-  Methods, Credits, and Use Restrictions
  Click here for details on how this gene model was made and data restrictions if any.