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Peptide·plain sequence-like

ATLPC0018201

ATLPC0018201

AGCKNFFWKTFTSC

Compare in workbenchDownload releaseAPI JSON
  • Length
    14 aa
  • Monoisotopic mass
    1638.7 Da
  • Net charge @ pH 7.4
    2.00
  • Isoelectric point
    8.82
  • GRAVY
    0.029
On this page
  • 01 Sequence & molecular identity
  • 02 Physicochemical profile
  • 03 Distribution / Barrier
  • 04 Excretion / Persistence
  • 05 Evidence landscape
  • 06 Product context
  • 07 Identity & reference map
  • 08 Data access & reproducibility
Coveragecounts only · not riskATLPC0018201
  • Measurements
    14
  • Endpoints
    2
  • Domains
    2/5
  • Products
    —
  • No matrix stability evidence
  • 13 clearance measurements
  • No immunogenicity context
  • 2 liability motifs
Jump to domain

Open the matching evidence section below

All evidence index · 14
Exposure / Absorption
No evidence
Distribution / Barrier
1 measurement
Metabolic & Proteolytic Stability
No evidence
Excretion / Persistence
13 measurements
Toxicity / Safety
No evidence
01

Sequence & molecular identity

1 forms

Reviewed sequence, peptidoform forms, chemical representation, 3D references, and covalent topology used to interpret this peptide identity.

Sequence & peptidoform

·
Identity summaryCanonical sequence only
Identity status
Canonical sequence only
Residues
14
Peptidoform features
0
Documented molecular forms
1
Representations
2
Documented molecular forms1 form linked to this peptide identity
FormTopologyModificationsConnectionsRepresentationsMeasurements
ATLPF0019896———Notation only1
Residue view
Residue display
14 residues
A1G2C3K4N5F6F7W8K9T10F11T12S13C14
Secondary structureα-helix (H)β-strand (E)coil (C)
Side-chain classNonpolarPolarBasic (+)Acidic (−)Modified

Soft tints mark standard side-chain classes for scanning. Primary emphasis is reserved for reported modifications, termini, secondary-structure tracks, and topology links.

Peptidoform features

Features are shown only when a reported notation or topology record supports them.

No terminal modification, residue-level marker, disulfide, staple, coordination, or other topology signal is currently available.

Structure & chemistry

·
Chemical representationsequence / HELM only
Representation class

How the current release can interpret this identity chemically.

plain sequence-like
Parent-residue sequence

Residue string used for positional interpretation when available.

AGCKNFFWKTFTSC
HELM

Polymer notation for modified peptide representation when available.

Not available
SMILES

Chemical graph string used for atom-level 2D depiction when available.

Not available
No atom-level graph

A reviewed SMILES is required before a 2D molecular depiction can be shown. Sequence and HELM remain useful for identity interpretation, but they do not replace a chemical graph.

3D structure references1 reference
3D coordinates·PEPstrMOD predictionpredicted
PEPstrMOD prediction·reference selected·length 14 aa·confidence predicted
LinkMethodConfidenceMatch
OpenPEPstrMOD modelpredicted14 aa
Covalent topology & modificationsnone
Exact topology not established

No reviewed form-level topology or residue-level connection annotation is attached to this peptide in the current release. This is not evidence that every molecular form is linear or unmodified.

02

Physicochemical profile

4 descriptors

Computed sequence-derived descriptors and any measured physicochemical evidence such as lipophilicity. Computed values are interpretation aids, not experimental ADMET measurements.

·
Core descriptors14 aa · pI 8.8 · GRAVY 0.03
Length
14 aa
Monoisotopic mass
1638.73 Da
Average mass
1639.91 Da
Net charge at pH 7.4
2.00
Estimated pI
8.82
GRAVY
0.029
KD-positive residues
42.9%
Aromatic residues
28.6%
Developability interpretation
Ionization context
pH 7.4 separated from pI
Hydrophobicity balance
Leans hydrophobic
Amphipathic moment (μH)
1.05
Computation boundary
Standard-sequence only
Charge & residue composition
pH charge context

Modeled net charge across common formulation and assay pH checkpoints.

pH 2
2.98
pH 5
2.04
pH 6
2.00
pH 7.4
1.79
pH 9
-0.27
pH 12
-2.88
Residue-class composition

Grouped composition is often more interpretable than a long amino-acid list.

Basic (K,R,H)
2 · 14.3%
Polar uncharged (N,Q,S,T)
4 · 28.6%
Hydrophobic aliphatic (A,V,I,L,M)
1 · 7.1%
Aromatic (F,W,Y)
4 · 28.6%
Conformational / sulfur (G,P,C)
3 · 21.4%
Top residues
F321.4%C214.3%K214.3%T214.3%A17.1%N17.1%G17.1%S17.1%
Hydropathy & amphipathic windows
Hydropathy windows

Seven-residue sliding windows expose local patches hidden by whole-sequence GRAVY.

Most hydrophobic window
6-12
FFWKTFT
GRAVY 0.314
Most hydrophilic window
4-10
KNFFWKT
GRAVY -1.043
8 local hydropathy windows scanned. A local patch is context for solubility, adsorption, and membrane interaction review, not a standalone endpoint.
Amphipathic-window scan

Top alpha-helix hydrophobic-moment windows across 12, 15, 18, and 21 residues.

12 aa window
3-14
CKNFFWKTFTSC
μH 1.33 · charge 2.0
12 aa window
2-13
GCKNFFWKTFTS
μH 1.14 · charge 2.0
12 aa window
1-12
AGCKNFFWKTFT
μH 1.01 · charge 2.0
Sequence-liability cues
Sequence-liability notes

Motifs are review prompts for formulation or CMC interpretation; they are not degradation predictions.

Oxidation-sensitive residues
W, C · pos 3, 8, 14
Met, Trp, and Cys residues can merit formulation review for oxidation or covalent-state sensitivity.
Cys covalent complexity
C · pos 3, 14
Multiple cysteines can indicate disulfide or free-thiol interpretation requirements.
Alpha-helix amphipathic projection
Helical wheel · Edmundson projection
μH = 1.05100°/residue · 14 aa
μH1: A (Ala) · Hydrophobic · K-D 1.8A12: G (Gly) · Special · K-D -0.4G23: C (Cys) · Special · K-D 2.5C34: K (Lys) · Basic + · K-D -3.9K45: N (Asn) · Polar · K-D -3.5N56: F (Phe) · Aromatic · K-D 2.8F67: F (Phe) · Aromatic · K-D 2.8F78: W (Trp) · Aromatic · K-D -0.9W89: K (Lys) · Basic + · K-D -3.9K910: T (Thr) · Polar · K-D -0.7T1011: F (Phe) · Aromatic · K-D 2.8F1112: T (Thr) · Polar · K-D -0.7T1213: S (Ser) · Polar · K-D -0.8S1314: C (Cys) · Special · K-D 2.5C14
Hydrophobic moment1.05
Mean K-D hydropathy0.03
Approx. net charge+2
Projection angle100° / residue
The pale sector marks the direction of the hydrophobic face inferred from μH. This is a projection assumption, not a measured fold.
HydrophobicAromaticPolarBasic +Acidic −Specialhydrophobic faceμH arrow → hydrophobic face

The projection assumes an α-helix conformation; a long μH arrow indicates an amphipathic helix, common in antimicrobial peptides.

Method notes

Charge model: side-chain pKa D 3.9, E 4.1, C 8.5, Y 10.1, H 6.5, K 10.8, R 12.5 with EMBOSS termini. pI is estimated by binary search on modeled net charge. Hydropathy uses Kyte-Doolittle values; hydrophobic moment follows the Eisenberg alpha-helix vector-sum convention. When the basis is a parent-residue sequence, modified chemistry is intentionally not inferred.

Computed developability descriptors

Deterministic descriptors computed from the reviewed sequence or chemical structure (RDKit), each anchored to a literature method. These are computed estimates for developability interpretation — not experimental measurements — and are validated against independent reference implementations.

Sequence-derived

Computed from the standard parent-residue sequence; protein-origin metrics defined at any length.

Aliphatic index
7.14
Instability index
30.6

At or below 40 — predicted stable in vitro.

Boman index
0.69 kcal/mol
Molar extinction coefficient (280 nm)
5,500 M⁻¹·cm⁻¹

A280 (1 g/L) ≈ 3.35 · 5,625 M⁻¹·cm⁻¹ with 1 disulfide

Structure-derived descriptors are not shown because this identity has no resolved chemical structure (SMILES). This is a known coverage gap for disulfide-rich and unresolved peptidoforms, not a computation error.

03

Distribution / Barrier

1 records

What is known about distribution, binding, permeability, or barrier crossing?

Evidence records
1
Complete canonical measurements and observations attached to this domain.
Endpoint scope
1
Formal ADMET endpoints represented for this peptide.
Matched-context analysis
0
Quantitative results that may be analysed only with scientifically compatible records.
Reported-result review
1
Qualitative, narrative, or review-first results interpreted in their source context.
Endpoints in scopeBBB penetration
Evidence interpretation

Result type, analysis use, and source-check status are kept separate so a numerical value is not mistaken for a universally comparable result.

Eligible for matched-context analysis
Quantitative results whose endpoint and context must still be matched before analysis.
0
Interpret as reported
Qualitative, narrative, or review-first findings preserved in source context.
1
Supporting context only
Reference, label, clinical, or supporting context for interpretation.
0
Review before analysis
Records whose present structure does not establish a safe analysis role.
0
Evidence by endpoint

Rows are grouped by endpoint so value, assay context, interpretation layer, and reference can be checked in place.

·
BBB penetration1 record · 0 matched-context · 1 as reported · 0 context only · 0 review required
#ValueAnalysis useAssay / modelResult contextReference
1
Observation

source reported BBB observation

Interpret as reported

Not specified

Result: Qualitative or narrative result · Molecular form: not reported · Source: Primary reference linked

Source record
Barrier and permeability assay context

PAMPA, Caco-2, MDCK/RRCK, and BBB findings are assay/model contexts under Distribution / Barrier. They should not be read as interchangeable measurements.

PAMPA
0

artificial membrane

Caco-2
0

cell monolayer

MDCK
0

cell monolayer

RRCK
0

cell monolayer

BBB
1

barrier evidence

04

Excretion / Persistence

13 records

What evidence describes clearance or persistence?

Evidence records
13
Complete canonical measurements and observations attached to this domain.
Endpoint scope
1
Formal ADMET endpoints represented for this peptide.
Matched-context analysis
5
Quantitative results that may be analysed only with scientifically compatible records.
Reported-result review
7
Qualitative, narrative, or review-first results interpreted in their source context.
Endpoints in scopeHalf Life
Evidence interpretation

Result type, analysis use, and source-check status are kept separate so a numerical value is not mistaken for a universally comparable result.

Eligible for matched-context analysis
Quantitative results whose endpoint and context must still be matched before analysis.
5
Interpret as reported
Qualitative, narrative, or review-first findings preserved in source context.
7
Supporting context only
Reference, label, clinical, or supporting context for interpretation.
0
Review before analysis
Records whose present structure does not establish a safe analysis role.
1
Evidence by endpoint

Rows are grouped by endpoint so value, assay context, interpretation layer, and reference can be checked in place.

·
Half Life13 records · 5 matched-context · 7 as reported · 0 context only · 1 review required
#ValueAnalysis useAssay / modelResult contextReference
1

systemic pk half life unspecified phase: 7.6 minutes

456 seconds
Eligible when experimental context matches

ELISA · rat · Rat plasma (Intravenous injection)

Result: Reported point value · Molecular form: ATLPF0041064 · Dose/window: 1.8 mg/ml · Rat blood proteases · in vivo · Source: Primary reference linked

Reference
2

systemic pk half life unspecified phase: 0.73 ±0.03 hours

2628 seconds
Eligible when experimental context matches

ELISA · rat · Rat plasma (Intravenous injection)

Result: Reported point value · Molecular form: ATLPF0041064 · Dose/window: 1.8 mg/ml · Rat blood proteases · in vivo · Source: Primary reference linked

Reference
3

systemic pk half life unspecified phase: 0.79 ±0.17 hours

2844 seconds
Eligible when experimental context matches

ELISA · rat · Rat plasma (Intravenous injection)

Result: Reported point value · Molecular form: ATLPF0041064 · Dose/window: 1.8 mg/ml · Rat blood proteases · in vivo · Source: Primary reference linked

Reference
4

systemic pk half life unspecified phase: 1.23 ±0.16 hours

4428 seconds
Eligible when experimental context matches

ELISA · rat · Rat plasma (Intravenous injection)

Result: Reported point value · Molecular form: ATLPF0041064 · Dose/window: 1.8 mg/ml · Rat blood proteases · in vivo · Source: Primary reference linked

Reference
5

10 minutes

600 seconds
Eligible when experimental context matches

HPLC and LC/ITMS · Bacterial strain B-9 cell culture

Result: Reported point value · Molecular form: ATLPF0041064 · Dose/window: 1mg/mL · Time: Room Temperature · Hydolytic activity of bacterial strain B-9 · in vitro · Source: Primary reference linked

Reference
6

8406 seconds

Interpret as reported

Radioimmunoassay · Brodmann Area tissues of brain of SDAT(Alzheimer's Disease Brain Bank, Bronx, NY)

Result: Reported point value · Molecular form: ATLPF0041064 · Dose/window: 50μM · Brodmann Area tissues proteases · in vitro · Source: Primary reference linked

Reference
7

7788.000000000001 seconds

Interpret as reported

Radioimmunoassay · Hippucampus tissues of brain of SDAT(Alzheimer's Disease Brain Bank, Bronx, NY)

Result: Reported point value · Molecular form: ATLPF0041064 · Dose/window: 50μM · Hippucampul tissues proteases · in vitro · Source: Primary reference linked

Reference
8

4788 seconds

Interpret as reported

Radioimmunoassay · Posterior Hippucampus tissues of brain of SDAT(Alzheimer's Disease Brain Bank, Bronx, NY)

Result: Reported point value · Molecular form: ATLPF0041064 · Dose/window: 50μM · Hippucampul tissues proteases · in vitro · Source: Primary reference linked

Reference
9

circulating somatostatin half life: 2.4 minute

144 seconds
Use only explicitly reported fields

Intravenous infusion to cat plasma

Result: Reported point value · Molecular form: not reported · Dose/window: 1.7nmol · Time: 1 hour · cat blood protease · in vivo · Source: Reference not captured

Evidence context
10

circulating somatostatin half life: 1.0 ±0.2 minutes

60 seconds
Use only explicitly reported fields

Radioimmunoassay · dog · Blood plasma sample from five mongrel dogs

Result: Reported point value · Molecular form: not reported · Dose/window: 100ng · Time: 5 days · in vivo · Source: Reference not captured

Evidence context
1–10 / 13
05

Evidence landscape

14 records

Cross-domain evidence distribution and measurement-level detail; the domain modules above show evidence in context, and every row remains available for audit here.

Evidence landscape

A cross-domain view of evidence volume, scientifically permitted analysis use, and source traceability.

ADMET domain
Eligible when context matches
Interpret as reported
Supporting context only
Review before analysis
Exposure / Absorption
0 evidence records
0
0
0
0
Distribution / Barrier
1 evidence record
0
1
0
0
Metabolic & Proteolytic Stability
0 evidence records
0
0
0
0
Excretion / Persistence
13 evidence records
5
7
0
1
Toxicity / Safety
0 evidence records
0
0
0
0
Endpoint distribution

Top evidence-bearing endpoint questions.

Half Life
13
Blood Brain Barrier Penetration
1
Assay context

Broad context buckets, useful before comparing values.

In vivo / route
8
Matrix / stability
4
Unspecified
2
Traceability

Reference-link availability for measurement-level audit.

Linked reference
10
Not linked
4
All evidence index

Every evidence record remains available for audit and drilldown. Counts describe evidence volume, not confidence.

#ADMET domainEndpointReported valueResult typeAnalysis useAssay / modelConditionReference
1
Excretion / Persistence
Persistence
Half Life
7,788 seconds
Reported point valueInterpret as reportedRadioimmunoassay · Hippucampus tissues of brain of SDAT(Alzheimer's Disease Brain Bank, Bronx, NY)Dose/window: 50μM · Protease: Hippucampul tissues proteases · in vitro
Reference
Primary reference linked
2
Excretion / Persistence
Persistence
Half Life
8,406 seconds
Reported point valueInterpret as reportedRadioimmunoassay · Brodmann Area tissues of brain of SDAT(Alzheimer's Disease Brain Bank, Bronx, NY)Dose/window: 50μM · Protease: Brodmann Area tissues proteases · in vitro
Reference
Primary reference linked
3
Excretion / Persistence
Persistence
Half Life
1.0 ±0.2 minutes
60 seconds
Result metric: CIRCULATING_SOMATOSTATIN_HALF_LIFE
Reported point valueUse only explicitly reported fieldsRadioimmunoassay · dog · Blood plasma sample from five mongrel dogsTime: 5 days · Dose/window: 100ng · in vivo
Evidence context
Reference not captured
4
Excretion / Persistence
Persistence
Half Life
7.6 minutes
456 seconds
Result metric: SYSTEMIC_PK_HALF_LIFE_UNSPECIFIED_PHASE
Reported point valueEligible when experimental context matchesELISA · rat · Rat plasma (Intravenous injection)Dose/window: 1.8 mg/ml · Protease: Rat blood proteases · in vivo
Reference
Primary reference linked
5
Excretion / Persistence
Persistence
Half Life
0.73 ±0.03 hours
2,628 seconds
Result metric: SYSTEMIC_PK_HALF_LIFE_UNSPECIFIED_PHASE
Reported point valueEligible when experimental context matchesELISA · rat · Rat plasma (Intravenous injection)Dose/window: 1.8 mg/ml · Protease: Rat blood proteases · in vivo
Reference
Primary reference linked
6
Excretion / Persistence
Persistence
Half Life
0.79 ±0.17 hours
2,844 seconds
Result metric: SYSTEMIC_PK_HALF_LIFE_UNSPECIFIED_PHASE
Reported point valueEligible when experimental context matchesELISA · rat · Rat plasma (Intravenous injection)Dose/window: 1.8 mg/ml · Protease: Rat blood proteases · in vivo
Reference
Primary reference linked
7
Excretion / Persistence
Persistence
Half Life
< 5 minutes
< 300 seconds
Result metric: CIRCULATING_SOMATOSTATIN_HALF_LIFE
Upper-bound measurementUse only explicitly reported fieldsrat · Rats plasmaProtease: Rats blood proteases · in vivo
Evidence context
Reference not captured
8
Excretion / Persistence
Persistence
Half Life
4,788 seconds
Reported point valueInterpret as reportedRadioimmunoassay · Posterior Hippucampus tissues of brain of SDAT(Alzheimer's Disease Brain Bank, Bronx, NY)Dose/window: 50μM · Protease: Hippucampul tissues proteases · in vitro
Reference
Primary reference linked
9
Excretion / Persistence
Persistence
Half Life
10 minutes
600 seconds
Reported point valueEligible when experimental context matchesHPLC and LC/ITMS · Bacterial strain B-9 cell cultureTime: Room Temperature · Dose/window: 1mg/mL · Protease: Hydolytic activity of bacterial strain B-9 · in vitro
Reference
Primary reference linked
10
Excretion / Persistence
Persistence
Half Life
27 hours
97,200 seconds
Reported point valueReview experimental context before comparisonNot specifiedNot specified
Reference
Primary reference linked
1–10 / 14
06

Product context

Product-level route, label, and clinical context that frames peptide-level evidence. A peptide-level summary only; product pages keep the full drilldown.

No product association in this release

This peptide is currently interpreted from sequence, structure, physicochemical, and ADMET evidence only.

Browse products
07

Identity & reference map

14 sources

Reference-level support for checking reported names, sequence notation, and peptide identity agreement.

·
Summary9 reference groups
Identity type
canonical sequence
Reported notation
0
Reference groups
9
Measurements
14
ATL peptide ID
ATLPC0018201
Identity concordance
Identity concordance
Exact reported notation

Reported sequence string matches the current peptide notation.

0 / 14
Parent-residue compatible

Reported notation differs, but resolves to the same parent-residue display.

0 / 14
Different notation

Reported notation does not resolve to the current display sequence.

0 / 14
Source sequence not captured

No source-specific sequence was captured for comparison; this is not interpreted as agreement or disagreement.

14 / 14
Reported sequence notation

No source-specific sequence notation has been captured in the current identity references.

Current identity
AGCKNFFWKTFTSC
Reported names
No distinct human-readable aliases are exposed.
Reference map9 reference groups
Reference map

Grouped by reference link, with endpoint scope and reported identity kept visible.

ReferenceSupportsReported identityRecords
Reference
Open
Persistence
Half Life
No reported alias
4 identity
4 evidence
Reference
Open
Persistence
Half Life
No reported alias
3 identity
3 evidence
Reference
Open
Persistence
Half Life
No reported alias
1 identity
1 evidence
Reference
Open
Persistence
Half Life
No reported alias
1 identity
1 evidence
Source record
Open
Distribution
Blood Brain Barrier Penetration
No reported alias
1 identity
1 evidence
Evidence context
Not linked
Persistence
Half Life
No reported alias
1 identity
1 evidence
Evidence context
Not linked
Persistence
Half Life
No reported alias
1 identity
1 evidence
Evidence context
Not linked
Persistence
Half Life
No reported alias
1 identity
1 evidence
Evidence context
Not linked
Persistence
Half Life
No reported alias
1 identity
1 evidence
08

Data access & reproducibility

Stable record access, analysis-ready files, and scripted retrieval for reproducing this profile view.

·
Record scopePublic release
ATL peptide ID
ATLPC0018201
Identity type
canonical sequence
ADMET endpoints
2
Evidence records
14
Reference groups
9
Release view
Public release
Data access

Structured peptide profile

JSON

Peptide-specific profile used by this page, including identity and evidence context.

Open JSON

Peptide catalogue

TSV

Complete frozen peptide table. Filter the ATL peptide ID column locally to isolate this record.

Download catalogue

Measurement catalogue

TSV

Complete frozen measurement table. Join or filter by ATL peptide ID for peptide-level analysis.

Download measurements
Programmatic access

The request returns the same structured peptide record used by this profile. The tabular downloads are complete frozen release tables and should be filtered locally by ATL peptide ID.

Open endpoint
GET /api/v1/peptides/ATLPC0018201
open
curl -sS 'https://admetatlas.scbdd.com/api/v1/peptides/ATLPC0018201' \
  -H 'accept: application/json' \
  -H 'X-Visibility: public_release'
ADMETatlas
peptide evidence atlas

ADMETatlas is an open, curated atlas of ADMET evidence for therapeutic peptides — spanning developability, membrane permeability and blood–brain-barrier transport, immune-recognition context, and approved-product context. Every measurement stays linked to its original source, with stable identifiers and transparent curation, so results can be traced, cited, and reproduced.

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