Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

Cerebellin-1

Gene

CBLN1

Organism
Homo sapiens (Human)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at protein leveli

Functioni

Required for synapse integrity and synaptic plasticity. During cerebellar synapse formation, essential for the formation and maintenance of parallel fiber and Purkinje cell synapses. When parallel fibers make contact with Purkinje spines, CBLN1 interaction with GRID2 triggers the recruitment of NRXN1 and secretory vesicles to the sites of contact. NRXN1-CBLN1-GRID2 signaling induces presynaptic morphological changes, which may further accumulate pre- and postsynaptic components to promote bidirectional maturation of parallel fiber - Purkinje cell functionally active synapses by a positive feedback mechanism. Required for CBLN3 export from the endoplasmic reticulum and secretion (By similarity).By similarity
The cerebellin peptide exerts neuromodulatory functions. Directly stimulates norepinephrine release via the adenylate cyclase/PKA-dependent signaling pathway; and indirectly enhances adrenocortical secretion in vivo, through a paracrine mechanism involving medullary catecholamine release (By similarity).By similarity

GO - Biological processi

Complete GO annotation...

Enzyme and pathway databases

BioCyciZFISH:ENSG00000102924-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
Cerebellin-1
Alternative name(s):
Precerebellin
Cleaved into the following 2 chains:
Gene namesi
Name:CBLN1
OrganismiHomo sapiens (Human)
Taxonomic identifieri9606 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo
Proteomesi
  • UP000005640 Componenti: Chromosome 16

Organism-specific databases

HGNCiHGNC:1543. CBLN1.

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Cell junction, Cell membrane, Membrane, Postsynaptic cell membrane, Secreted, Synapse

Pathology & Biotechi

Organism-specific databases

DisGeNETi869.
OpenTargetsiENSG00000102924.
PharmGKBiPA26118.

Polymorphism and mutation databases

BioMutaiCBLN1.
DMDMi116114.

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 21Sequence analysisAdd BLAST21
ChainiPRO_000027420922 – 193Cerebellin-1Add BLAST172
PeptideiPRO_000000354657 – 72CerebellinAdd BLAST16
PeptideiPRO_000027421058 – 72[des-Ser1]-cerebellinAdd BLAST15

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Glycosylationi23N-linked (GlcNAc...)Sequence analysis1
Disulfide bondi34InterchainBy similarity
Disulfide bondi38InterchainBy similarity
Glycosylationi41N-linked (GlcNAc...)Sequence analysis1
Glycosylationi79N-linked (GlcNAc...)Sequence analysis1

Post-translational modificationi

The proteolytic processing to yield cerebellin seems to occur either prior to the secretion by presynaptic neurons and subsequent oligomerization or in some other location after release of the mature protein.

Keywords - PTMi

Disulfide bond, Glycoprotein

Proteomic databases

PaxDbiP23435.
PeptideAtlasiP23435.
PRIDEiP23435.

PTM databases

iPTMnetiP23435.
PhosphoSitePlusiP23435.

Expressioni

Tissue specificityi

In the Purkinje cells postsynaptic structures. In the cerebellum, cerebellin is much less abundant than [des-Ser1]-cerebellin.

Developmental stagei

Low at birth, the cerebellin concentration increases between day 5 and 15, and reaches peak values between day 21 and 56.

Gene expression databases

BgeeiENSG00000102924.
CleanExiHS_CBLN1.
ExpressionAtlasiP23435. baseline and differential.
GenevisibleiP23435. HS.

Interactioni

Subunit structurei

Homohexamer; disulfide-linked homotrimers. The trimers are assembled via the globular C1q domains. The trimers associate via N-terminal cysteine residues to form disulfide-linked hexamers. May form oligomers with CBLN2, CBLN3 AND CBLN4 prior to secretion. Once secreted, does not interact with other CBLN family members. Interacts with GRID1 and GRID2. GRID2-binding is calcium-independent. Interacts with NRXN1 and NRXN2 long (alpha) and short (beta) isoforms produced by alternative promoter usage. Competes with NLGN1 for NRXN1-binding. Weakly interacts with NRXN3 short isoform and not at all with NRXN3 long isoform (By similarity).By similarity

Protein-protein interaction databases

STRINGi9606.ENSP00000219197.

Structurei

Secondary structure

1193
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Beta strandi63 – 67Combined sources5
Helixi78 – 81Combined sources4
Beta strandi87 – 93Combined sources7
Turni99 – 102Combined sources4
Beta strandi103 – 105Combined sources3
Beta strandi107 – 120Combined sources14
Beta strandi127 – 133Combined sources7
Beta strandi136 – 143Combined sources8
Beta strandi147 – 149Combined sources3
Beta strandi151 – 161Combined sources11
Beta strandi166 – 174Combined sources9
Beta strandi184 – 192Combined sources9

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
5KC5X-ray2.35A58-193[»]
5KC6X-ray2.80A/B/C24-193[»]
5KC7X-ray7.04A/B/C/D24-193[»]
5KCAX-ray3.10A57-193[»]
ProteinModelPortaliP23435.
SMRiP23435.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini57 – 193C1qPROSITE-ProRule annotationAdd BLAST137

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni62 – 193Necessary for interaction with CBLN3, and homotrimerizationBy similarityAdd BLAST132

Sequence similaritiesi

Contains 1 C1q domain.PROSITE-ProRule annotation

Keywords - Domaini

Signal

Phylogenomic databases

eggNOGiENOG410IFXA. Eukaryota.
ENOG410Y16R. LUCA.
GeneTreeiENSGT00760000119052.
HOGENOMiHOG000085657.
HOVERGENiHBG108329.
InParanoidiP23435.
OMAiMVIYFDR.
OrthoDBiEOG091G0XK2.
PhylomeDBiP23435.
TreeFamiTF329591.

Family and domain databases

Gene3Di2.60.120.40. 1 hit.
InterProiIPR001073. C1q_dom.
IPR008983. Tumour_necrosis_fac-like_dom.
[Graphical view]
PfamiPF00386. C1q. 1 hit.
[Graphical view]
PRINTSiPR00007. COMPLEMNTC1Q.
SMARTiSM00110. C1Q. 1 hit.
[Graphical view]
SUPFAMiSSF49842. SSF49842. 1 hit.
PROSITEiPS50871. C1Q. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P23435-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MLGVLELLLL GAAWLAGPAR GQNETEPIVL EGKCLVVCDS NPTSDPTGTA
60 70 80 90 100
LGISVRSGSA KVAFSAIRST NHEPSEMSNR TMIIYFDQVL VNIGNNFDSE
110 120 130 140 150
RSTFIAPRKG IYSFNFHVVK VYNRQTIQVS LMLNGWPVIS AFAGDQDVTR
160 170 180 190
EAASNGVLIQ MEKGDRAYLK LERGNLMGGW KYSTFSGFLV FPL
Length:193
Mass (Da):21,097
Last modified:November 1, 1991 - v1
Checksum:iD542FC7987E401A5
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M58583 mRNA. Translation: AAA35676.1.
AK314276 mRNA. Translation: BAG36936.1.
CH471092 Genomic DNA. Translation: EAW82731.1.
BC093692 mRNA. Translation: AAH93692.1.
BC093718 mRNA. Translation: AAH93718.1.
CCDSiCCDS10736.1.
PIRiA37873.
PL0124.
RefSeqiNP_004343.1. NM_004352.3.
UniGeneiHs.458423.

Genome annotation databases

EnsembliENST00000219197; ENSP00000219197; ENSG00000102924.
ENST00000536749; ENSP00000444651; ENSG00000102924.
GeneIDi869.
KEGGihsa:869.
UCSCiuc002efq.4. human.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M58583 mRNA. Translation: AAA35676.1.
AK314276 mRNA. Translation: BAG36936.1.
CH471092 Genomic DNA. Translation: EAW82731.1.
BC093692 mRNA. Translation: AAH93692.1.
BC093718 mRNA. Translation: AAH93718.1.
CCDSiCCDS10736.1.
PIRiA37873.
PL0124.
RefSeqiNP_004343.1. NM_004352.3.
UniGeneiHs.458423.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
5KC5X-ray2.35A58-193[»]
5KC6X-ray2.80A/B/C24-193[»]
5KC7X-ray7.04A/B/C/D24-193[»]
5KCAX-ray3.10A57-193[»]
ProteinModelPortaliP23435.
SMRiP23435.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi9606.ENSP00000219197.

PTM databases

iPTMnetiP23435.
PhosphoSitePlusiP23435.

Polymorphism and mutation databases

BioMutaiCBLN1.
DMDMi116114.

Proteomic databases

PaxDbiP23435.
PeptideAtlasiP23435.
PRIDEiP23435.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENST00000219197; ENSP00000219197; ENSG00000102924.
ENST00000536749; ENSP00000444651; ENSG00000102924.
GeneIDi869.
KEGGihsa:869.
UCSCiuc002efq.4. human.

Organism-specific databases

CTDi869.
DisGeNETi869.
GeneCardsiCBLN1.
HGNCiHGNC:1543. CBLN1.
MIMi600432. gene.
neXtProtiNX_P23435.
OpenTargetsiENSG00000102924.
PharmGKBiPA26118.
GenAtlasiSearch...

Phylogenomic databases

eggNOGiENOG410IFXA. Eukaryota.
ENOG410Y16R. LUCA.
GeneTreeiENSGT00760000119052.
HOGENOMiHOG000085657.
HOVERGENiHBG108329.
InParanoidiP23435.
OMAiMVIYFDR.
OrthoDBiEOG091G0XK2.
PhylomeDBiP23435.
TreeFamiTF329591.

Enzyme and pathway databases

BioCyciZFISH:ENSG00000102924-MONOMER.

Miscellaneous databases

GenomeRNAii869.
PROiP23435.
SOURCEiSearch...

Gene expression databases

BgeeiENSG00000102924.
CleanExiHS_CBLN1.
ExpressionAtlasiP23435. baseline and differential.
GenevisibleiP23435. HS.

Family and domain databases

Gene3Di2.60.120.40. 1 hit.
InterProiIPR001073. C1q_dom.
IPR008983. Tumour_necrosis_fac-like_dom.
[Graphical view]
PfamiPF00386. C1q. 1 hit.
[Graphical view]
PRINTSiPR00007. COMPLEMNTC1Q.
SMARTiSM00110. C1Q. 1 hit.
[Graphical view]
SUPFAMiSSF49842. SSF49842. 1 hit.
PROSITEiPS50871. C1Q. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiCBLN1_HUMAN
AccessioniPrimary (citable) accession number: P23435
Secondary accession number(s): B2RAN9, P02682, Q52M09
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 1, 1991
Last sequence update: November 1, 1991
Last modified: November 30, 2016
This is version 135 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. Human chromosome 16
    Human chromosome 16: entries, gene names and cross-references to MIM
  2. MIM cross-references
    Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot
  3. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  4. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.