AMPDB_34951 | Styelin-B

PEPTIDE SUMMARY

Styelin-B

1 General Description

AMPDB ID: AMPDB_34951

Protein Names: Styelin-B

Protein Family: Nil

Gene Name: Nil

Source Organism: Styela clava (Sea squirt)

Protein Length: 20 AA

Protein Existence: Evidence at protein level

2 Protein Sequence & Composition

2.1 Sequence

GXFGPAFHSVSNFAKKHKTA

FASTA format

2.2 Composition

Counts of Amino Acids

'A': 3, 'R': 0, 'N': 1, 'D': 0, 'C': 0, 'Q': 0, 'E': 0, 'G': 2, 'H': 2, 'I': 0, 'L': 0, 'K': 3, 'M': 0, 'F': 3, 'P': 1, 'S': 2, 'T': 1, 'W': 0, 'Y': 0, 'V': 1

Frequencies of Amino Acids

'A': 15%, 'R': 0%, 'N': 5%, 'D': 0%, 'C': 0%, 'Q': 0%, 'E': 0%, 'G': 10%, 'H': 10%, 'I': 0%, 'L': 0%, 'K': 15%, 'M': 0%, 'F': 15%, 'P': 5%, 'S': 10%, 'T': 5%, 'W': 0%, 'Y': 0%, 'V': 5%

Missing Amino Acid(s)

C, D, E, I, L, M, Q, R, W, Y

Most Occurring Amino Acid(s)

A, F, K

Less Occurring Amino Acid(s)

N, P, T, V, X

Hydrophobic Amino Acid(s) Count

Hydrophilic Amino Acid(s) Count

Basic Amino Acid(s) Count

Acidic Amino Acid(s) Count

Modified Amino Acid(s) Count

{'X': 1}

Modified Amino Acid(s) Frequencies

{'X': 0.05}

Computed by biopython (version 1.79) & proteinAnalysis (version 1)

3 Physicochemical Properties

Sl. No.	Properties	Values	Reference
1.	Molecular Mass	2031.3 Da	Computed by ProtParam module (biopython 1.79)
2.	Aliphatic Index	29.5	Computed by ProtParam module (biopython 1.79)
3.	Instability Index (Half Life)	23.455	Computed by ProtParam module (biopython 1.79)
4.	Hydrophobicity (GRAVY)	-0.415	Computed by ProtParam module (biopython 1.79)
5.	Hydrophobic Moment	0.573	Computed by ProtParam module (biopython 1.79)
6.	Isoelectric Point	11.103	Computed by ProtParam module (biopython 1.79)
7.	Charge (at pH 7)	3.179	Computed by ProtParam module (biopython 1.79)
8.	Secondary Structure Fraction	0.2, 0.3, 0.15 [Helix, Turn, Sheet]	Computed by ProtParam module (biopython 1.79)
9.	Aromaticity	0.15	Computed by ProtParam module (biopython 1.79)
10.	Molar Extinction Coefficient (cysteine\|cystine)	0, 0	Computed by ProtParam module (biopython 1.79)

4 Activity Details

4.1 Target Organism(s)

Gram Negative Bacteria and Gram Positive Bacteria

4.2 Antimicrobial Activity

Antibiotic, Antimicrobial, Anti-gram-negative, Anti-gram-Positive

4.3 Enzymatic Activity

Not found

4.4 Inhibitory Effect

Not found

4.5 Other Biological Activity

Non-hemolytic, Non-ribosomal

Activity data manually curated from Literature and UniProt

5 Database Cross-references

5.1 Literature Database

5.1.1 PubMed

Citation 1: Lee IH, Cho Y, Lehrer RI, et al. Styelins, broad-spectrum antimicrobial peptides from the solitary tunicate, Styela clava. Comp Biochem Physiol B Biochem Mol Biol. 1997;118(3):515-21. Published 1997 Nov. doi:10.1016/s0305-0491(97)00109-0

PMID: 9467865

5.2 Protein Sequence Databases

UniProt: P81470

5.3 3D Structure Databases

No PDB Ids found

AlphaFoldDB: P81470

5.4 Nucleotide Sequence Databases

No entries found in GenBank or EMBL

CCDS: Not found

RefSeq: Not found

5.5 Protein-Protein Interaction Databases

STRING: Not found

IntAct: Not found

MINT: Not found

DIP: Not found

BioGRID: Not found

5.6 Ligand Databases

BindingDB: Not found

DrugBank: Not found

ChEMBL: Not found

5.7 Family & Domain Databases

InterPro: Not found

PANTHER: Not found

PROSITE: Not found

5.8 Genome Annotation Databases

Ensembl: Not found

KEGG: Not found

5.9 Phylogenomic Databases

GeneTree: Not found

5.10 Enzyme & Pathway Databases

BRENDA: Not found

BioCyc: Not found

5.11 Protein-RNA Interaction Databases

RNAct: Not found

Download