AMPDB_606 | Antimicrobial peptide 2

PEPTIDE SUMMARY

Antimicrobial peptide 2

1 General Description

AMPDB ID: AMPDB_606

Protein Names: Antimicrobial peptide 2 (AamAP2) (Non-disulfide-bridged peptide 4.12) (NDBP-4.12)

Protein Family: Non-disulfide-bridged peptide (NDBP) superfamily; Short antimicrobial peptide (group 4) family

Gene Name: Nil

Source Organism: Androctonus amoreuxi (African fattail scorpion) (Scorpio amoreuxi)

Protein Length: 74 AA

Protein Existence: Evidence at protein level

2 Protein Sequence & Composition

2.1 Sequence

MEIKYLLTVFLVLLIVSDHCQAFPFSLIPHAIGGLISAIKGRRKRDLDGQIDRSRNFRKRDAELEELLSKLPIY

FASTA format

2.2 Composition

Counts of Amino Acids

'A': 4, 'R': 7, 'N': 1, 'D': 5, 'C': 1, 'Q': 2, 'E': 4, 'G': 4, 'H': 2, 'I': 8, 'L': 12, 'K': 5, 'M': 1, 'F': 4, 'P': 3, 'S': 5, 'T': 1, 'W': 0, 'Y': 2, 'V': 3

Frequencies of Amino Acids

'A': 5.41%, 'R': 9.46%, 'N': 1.35%, 'D': 6.76%, 'C': 1.35%, 'Q': 2.7%, 'E': 5.41%, 'G': 5.41%, 'H': 2.7%, 'I': 10.81%, 'L': 16.22%, 'K': 6.76%, 'M': 1.35%, 'F': 5.41%, 'P': 4.05%, 'S': 6.76%, 'T': 1.35%, 'W': 0%, 'Y': 2.7%, 'V': 4.05%

Missing Amino Acid(s)

Most Occurring Amino Acid(s)

Less Occurring Amino Acid(s)

C, M, N, T

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

Modified Amino Acid(s) Frequencies

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

3 Physicochemical Properties

Sl. No.	Properties	Values	Reference
1.	Molecular Mass	8539.1 Da	Computed by ProtParam module (biopython 1.79)
2.	Aliphatic Index	122.568	Computed by ProtParam module (biopython 1.79)
3.	Instability Index (Half Life)	42.914	Computed by ProtParam module (biopython 1.79)
4.	Hydrophobicity (GRAVY)	0.053	Computed by ProtParam module (biopython 1.79)
5.	Hydrophobic Moment	0.48	Computed by ProtParam module (biopython 1.79)
6.	Isoelectric Point	9.787	Computed by ProtParam module (biopython 1.79)
7.	Charge (at pH 7)	3.124	Computed by ProtParam module (biopython 1.79)
8.	Secondary Structure Fraction	0.392, 0.176, 0.284 [Helix, Turn, Sheet]	Computed by ProtParam module (biopython 1.79)
9.	Aromaticity	0.081	Computed by ProtParam module (biopython 1.79)
10.	Molar Extinction Coefficient (cysteine\|cystine)	2980, 2980	Computed by ProtParam module (biopython 1.79)

4 Activity Details

4.1 Target Organism(s)

C.albicans, E.coli (Gram-negative), S.aureus (Gram-positive)

4.2 Antimicrobial Activity

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

4.3 Enzymatic Activity

Not found

4.4 Inhibitory Effect

Not found

4.5 Other Biological Activity

Cytolysis, 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: Almaaytah A, Zhou M, Wang L, et al. Antimicrobial/cytolytic peptides from the venom of the North African scorpion, Androctonus amoreuxi: biochemical and functional characterization of natural peptides and a single site-substituted analog. Peptides. 2012;35(2):291-9. Published 2012 Jun. doi:10.1016/j.peptides.2012.03.016

PMID: 22484288

Citation 2: Almaaytah A, Albalas Q, Albalas Q. Scorpion venom peptides with no disulfide bridges: a review. Peptides. 2014;51:35-45. Published 2014 Jan. doi:10.1016/j.peptides.2013.10.021

PMID: 24184590

5.2 Protein Sequence Databases

UniProt: G8YYA6

5.3 3D Structure Databases

No PDB Ids found

AlphaFoldDB: G8YYA6

5.4 Nucleotide Sequence Databases

Sl. no.	Accession(s)	Access Link(s)
1.	FR821614	GenBank \|\| 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

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